- Add support for Altera Nios-II processors. - Add support for Psyent PCI-5441 board. - Add support for Psyent PK1C20 board.master
wdenk
21 years ago
parent
03f5c55021
commit
5c952cf024
@ -0,0 +1,197 @@ |
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/*
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* (C) Copyright 2000-2004 |
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#if defined(CONFIG_NIOS) |
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#include <nios.h> |
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#else |
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#include <nios2.h> |
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#endif |
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#define SECTSZ (64 * 1024) |
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flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; |
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/*----------------------------------------------------------------------*/ |
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unsigned long flash_init (void) |
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{ |
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int i; |
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unsigned long addr; |
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flash_info_t *fli = &flash_info[0]; |
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fli->size = CFG_FLASH_SIZE; |
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fli->sector_count = CFG_MAX_FLASH_SECT; |
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fli->flash_id = FLASH_MAN_AMD + FLASH_AMDLV065D; |
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addr = CFG_FLASH_BASE; |
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for (i = 0; i < fli->sector_count; ++i) { |
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fli->start[i] = addr; |
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addr += SECTSZ; |
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fli->protect[i] = 1; |
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} |
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return (CFG_FLASH_SIZE); |
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} |
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/*--------------------------------------------------------------------*/ |
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void flash_print_info (flash_info_t * info) |
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{ |
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int i, k; |
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unsigned long size; |
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int erased; |
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volatile unsigned char *flash; |
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printf (" Size: %ld KB in %d Sectors\n", |
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info->size >> 10, info->sector_count); |
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printf (" Sector Start Addresses:"); |
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for (i = 0; i < info->sector_count; ++i) { |
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/* Check if whole sector is erased */ |
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if (i != (info->sector_count - 1)) |
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size = info->start[i + 1] - info->start[i]; |
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else |
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size = info->start[0] + info->size - info->start[i]; |
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erased = 1; |
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flash = (volatile unsigned char *) CACHE_BYPASS(info->start[i]); |
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for (k = 0; k < size; k++) { |
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if (*flash++ != 0xff) { |
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erased = 0; |
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break; |
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} |
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} |
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|
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/* Print the info */ |
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if ((i % 5) == 0) |
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printf ("\n "); |
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printf (" %08lX%s%s", |
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CACHE_NO_BYPASS(info->start[i]), |
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erased ? " E" : " ", |
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info->protect[i] ? "RO " : " "); |
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} |
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printf ("\n"); |
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} |
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/*-------------------------------------------------------------------*/ |
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int flash_erase (flash_info_t * info, int s_first, int s_last) |
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{ |
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volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) |
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CACHE_BYPASS(info->start[0]); |
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volatile CFG_FLASH_WORD_SIZE *addr2; |
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int prot, sect; |
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ulong start; |
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/* Some sanity checking */ |
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if ((s_first < 0) || (s_first > s_last)) { |
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printf ("- no sectors to erase\n"); |
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return 1; |
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} |
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prot = 0; |
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for (sect = s_first; sect <= s_last; ++sect) { |
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if (info->protect[sect]) { |
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prot++; |
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} |
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} |
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if (prot) { |
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printf ("- Warning: %d protected sectors will not be erased!\n", |
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prot); |
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} else { |
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printf ("\n"); |
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} |
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/* It's ok to erase multiple sectors provided we don't delay more
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* than 50 usec between cmds ... at which point the erase time-out |
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* occurs. So don't go and put printf() calls in the loop ... it |
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* won't be very helpful ;-) |
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*/ |
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for (sect = s_first; sect <= s_last; sect++) { |
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if (info->protect[sect] == 0) { /* not protected */ |
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addr2 = (CFG_FLASH_WORD_SIZE *) |
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CACHE_BYPASS((info->start[sect])); |
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*addr = 0xaa; |
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*addr = 0x55; |
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*addr = 0x80; |
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*addr = 0xaa; |
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*addr = 0x55; |
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*addr2 = 0x30; |
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/* Now just wait for 0xff & provide some user
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* feedback while we wait. |
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*/ |
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start = get_timer (0); |
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while (*addr2 != 0xff) { |
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udelay (1000 * 1000); |
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putc ('.'); |
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if (get_timer (start) > CFG_FLASH_ERASE_TOUT) { |
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printf ("timeout\n"); |
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return 1; |
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} |
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} |
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} |
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} |
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printf ("\n"); |
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return 0; |
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} |
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/*-----------------------------------------------------------------------
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* Copy memory to flash, returns: |
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* 0 - OK |
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* 1 - write timeout |
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* 2 - Flash not erased |
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*/ |
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int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) |
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{ |
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vu_char *cmd = (vu_char *) CACHE_BYPASS(info->start[0]); |
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vu_char *dst = (vu_char *) CACHE_BYPASS(addr); |
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unsigned char b; |
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ulong start; |
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while (cnt) { |
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/* Check for sufficient erase */ |
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b = *src; |
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if ((*dst & b) != b) { |
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printf ("%02x : %02x\n", *dst, b); |
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return (2); |
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} |
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*cmd = 0xaa; |
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*cmd = 0x55; |
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*cmd = 0xa0; |
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*dst = b; |
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/* Verify write */ |
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start = get_timer (0); |
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while (*dst != b) { |
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if (get_timer (start) > CFG_FLASH_WRITE_TOUT) { |
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return 1; |
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} |
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} |
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dst++; |
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src++; |
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cnt--; |
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} |
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return (0); |
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} |
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@ -0,0 +1,50 @@ |
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#
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# (C) Copyright 2001-2004
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk |
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LIB = lib$(BOARD).a
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COMOBJS := ../common/AMDLV065D.o
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OBJS := $(BOARD).o $(COMOBJS)
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SOBJS =
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$(LIB): $(OBJS) $(SOBJS) |
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$(AR) crv $@ $^
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clean: |
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rm -f $(SOBJS) $(OBJS)
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distclean: clean |
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rm -f $(LIB) core *.bak .depend
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#########################################################################
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.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) |
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$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
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-include .depend |
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#########################################################################
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@ -0,0 +1,31 @@ |
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#
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# (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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# Scott McNutt <smcnutt@psyent.com>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
|
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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TEXT_BASE = 0x018e0000
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PLATFORM_CPPFLAGS += -mno-hw-div -mno-hw-mul
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PLATFORM_CPPFLAGS += -I$(TOPDIR)/board/$(VENDOR)/include
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ifeq ($(debug),1) |
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PLATFORM_CPPFLAGS += -DDEBUG
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endif |
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@ -0,0 +1,40 @@ |
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/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
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* Scott McNutt <smcnutt@psyent.com> |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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int board_early_init_f (void) |
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{ |
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return 0; |
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} |
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int checkboard (void) |
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{ |
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puts ("BOARD : Psyent PCI-5441\n"); |
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return 0; |
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} |
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long int initdram (int board_type) |
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{ |
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return (0); |
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} |
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@ -0,0 +1,136 @@ |
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/* |
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
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* Scott McNutt <smcnutt@psyent.com> |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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OUTPUT_FORMAT("elf32-littlenios2") |
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OUTPUT_ARCH(nios2) |
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ENTRY(_start) |
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SECTIONS |
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{ |
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.text : |
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{ |
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cpu/nios2/start.o (.text) |
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*(.text) |
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*(.text.*) |
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*(.gnu.linkonce.t*) |
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*(.rodata) |
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*(.rodata.*) |
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*(.gnu.linkonce.r*) |
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} |
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. = ALIGN (4); |
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_etext = .; |
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PROVIDE (etext = .); |
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/* CMD TABLE - sandwich this in between text and data so |
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* the initialization code relocates the command table as |
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* well -- admittedly, this is just pure laziness ;-) |
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*/ |
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__u_boot_cmd_start = .; |
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.u_boot_cmd : |
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{ |
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*(.u_boot_cmd) |
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} |
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. = ALIGN(4); |
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__u_boot_cmd_end = .; |
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/* INIT DATA sections - "Small" data (see the gcc -G option) |
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* is always gp-relative. Here we make all init data sections |
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* adjacent to simplify the startup code -- and provide |
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* the global pointer for gp-relative access. |
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*/ |
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_data = .; |
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.data : |
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{ |
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*(.data) |
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*(.data.*) |
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*(.gnu.linkonce.d*) |
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} |
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. = ALIGN(16); |
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_gp = .; /* Global pointer addr */ |
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PROVIDE (gp = .); |
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.sdata : |
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{ |
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*(.sdata) |
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*(.sdata.*) |
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*(.gnu.linkonce.s.*) |
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} |
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. = ALIGN(4); |
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_edata = .; |
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PROVIDE (edata = .); |
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/* UNINIT DATA - Small uninitialized data is first so it's |
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* adjacent to sdata and can be referenced via gp. The normal |
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* bss follows. We keep it adjacent to simplify init code. |
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*/ |
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__bss_start = .; |
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.sbss : |
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{ |
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*(.sbss) |
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*(.sbss.*) |
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*(.gnu.linkonce.sb.*) |
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*(.scommon) |
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} |
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. = ALIGN(4); |
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.bss : |
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{ |
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*(.bss) |
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*(.bss.*) |
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*(.dynbss) |
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*(COMMON) |
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*(.scommon) |
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} |
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. = ALIGN(4); |
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_end = .; |
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PROVIDE (end = .); |
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|
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/* DEBUG -- symbol table, string table, etc. etc. |
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*/ |
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.stab 0 : { *(.stab) } |
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.stabstr 0 : { *(.stabstr) } |
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.stab.excl 0 : { *(.stab.excl) } |
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.stab.exclstr 0 : { *(.stab.exclstr) } |
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.stab.index 0 : { *(.stab.index) } |
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.stab.indexstr 0 : { *(.stab.indexstr) } |
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.comment 0 : { *(.comment) } |
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.debug 0 : { *(.debug) } |
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.line 0 : { *(.line) } |
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.debug_srcinfo 0 : { *(.debug_srcinfo) } |
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.debug_sfnames 0 : { *(.debug_sfnames) } |
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.debug_aranges 0 : { *(.debug_aranges) } |
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.debug_pubnames 0 : { *(.debug_pubnames) } |
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.debug_info 0 : { *(.debug_info) } |
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.debug_abbrev 0 : { *(.debug_abbrev) } |
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.debug_line 0 : { *(.debug_line) } |
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.debug_frame 0 : { *(.debug_frame) } |
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.debug_str 0 : { *(.debug_str) } |
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.debug_loc 0 : { *(.debug_loc) } |
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.debug_macinfo 0 : { *(.debug_macinfo) } |
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.debug_weaknames 0 : { *(.debug_weaknames) } |
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.debug_funcnames 0 : { *(.debug_funcnames) } |
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.debug_typenames 0 : { *(.debug_typenames) } |
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.debug_varnames 0 : { *(.debug_varnames) } |
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} |
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@ -0,0 +1,50 @@ |
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#
|
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# (C) Copyright 2001-2004
|
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
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#
|
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# See file CREDITS for list of people who contributed to this
|
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# project.
|
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#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation; either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
# MA 02111-1307 USA
|
||||
#
|
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|
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include $(TOPDIR)/config.mk |
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|
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LIB = lib$(BOARD).a
|
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|
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COMOBJS := ../common/AMDLV065D.o
|
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|
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OBJS := $(BOARD).o led.o $(COMOBJS)
|
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|
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SOBJS =
|
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|
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$(LIB): $(OBJS) $(SOBJS) |
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$(AR) crv $@ $^
|
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|
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clean: |
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rm -f $(SOBJS) $(OBJS)
|
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|
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distclean: clean |
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rm -f $(LIB) core *.bak .depend
|
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|
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#########################################################################
|
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|
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.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) |
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$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
|
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|
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-include .depend |
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|
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#########################################################################
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@ -0,0 +1,31 @@ |
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#
|
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# (C) Copyright 2004, Psyent Corporation <www.psyent.com>
|
||||
# Scott McNutt <smcnutt@psyent.com>
|
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#
|
||||
# See file CREDITS for list of people who contributed to this
|
||||
# project.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation; either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
# MA 02111-1307 USA
|
||||
#
|
||||
|
||||
TEXT_BASE = 0x018e0000
|
||||
|
||||
PLATFORM_CPPFLAGS += -mno-hw-div -mno-hw-mul
|
||||
PLATFORM_CPPFLAGS += -I$(TOPDIR)/board/$(VENDOR)/include
|
||||
|
||||
ifeq ($(debug),1) |
||||
PLATFORM_CPPFLAGS += -DDEBUG
|
||||
endif |
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@ -0,0 +1,62 @@ |
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/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
#include <nios2.h> |
||||
#include <nios2-io.h> |
||||
#include <status_led.h> |
||||
|
||||
/* The LED port is configured as output only, so we
|
||||
* must track the state manually. |
||||
*/ |
||||
static led_id_t val = 0; |
||||
|
||||
void __led_init (led_id_t mask, int state) |
||||
{ |
||||
nios_pio_t *pio = (nios_pio_t *)CACHE_BYPASS(CFG_LEDPIO_ADDR); |
||||
|
||||
if (state == STATUS_LED_ON) |
||||
val &= ~mask; |
||||
else |
||||
val |= mask; |
||||
pio->data = val; |
||||
} |
||||
|
||||
void __led_set (led_id_t mask, int state) |
||||
{ |
||||
nios_pio_t *pio = (nios_pio_t *)CACHE_BYPASS(CFG_LEDPIO_ADDR); |
||||
|
||||
if (state == STATUS_LED_ON) |
||||
val &= ~mask; |
||||
else |
||||
val |= mask; |
||||
pio->data = val; |
||||
} |
||||
|
||||
void __led_toggle (led_id_t mask) |
||||
{ |
||||
nios_pio_t *pio = (nios_pio_t *)CACHE_BYPASS(CFG_LEDPIO_ADDR); |
||||
|
||||
val ^= mask; |
||||
pio->data = val; |
||||
} |
||||
@ -0,0 +1,40 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
|
||||
int board_early_init_f (void) |
||||
{ |
||||
return 0; |
||||
} |
||||
|
||||
int checkboard (void) |
||||
{ |
||||
puts ("BOARD : Psyent PK-1C20\n"); |
||||
return 0; |
||||
} |
||||
|
||||
long int initdram (int board_type) |
||||
{ |
||||
return (0); |
||||
} |
||||
@ -0,0 +1,136 @@ |
||||
/* |
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
|
||||
OUTPUT_FORMAT("elf32-littlenios2") |
||||
OUTPUT_ARCH(nios2) |
||||
ENTRY(_start) |
||||
|
||||
SECTIONS |
||||
{ |
||||
.text : |
||||
{ |
||||
cpu/nios2/start.o (.text) |
||||
*(.text) |
||||
*(.text.*) |
||||
*(.gnu.linkonce.t*) |
||||
*(.rodata) |
||||
*(.rodata.*) |
||||
*(.gnu.linkonce.r*) |
||||
} |
||||
. = ALIGN (4); |
||||
_etext = .; |
||||
PROVIDE (etext = .); |
||||
|
||||
/* CMD TABLE - sandwich this in between text and data so |
||||
* the initialization code relocates the command table as |
||||
* well -- admittedly, this is just pure laziness ;-) |
||||
*/ |
||||
__u_boot_cmd_start = .; |
||||
.u_boot_cmd : |
||||
{ |
||||
*(.u_boot_cmd) |
||||
} |
||||
. = ALIGN(4); |
||||
__u_boot_cmd_end = .; |
||||
|
||||
/* INIT DATA sections - "Small" data (see the gcc -G option) |
||||
* is always gp-relative. Here we make all init data sections |
||||
* adjacent to simplify the startup code -- and provide |
||||
* the global pointer for gp-relative access. |
||||
*/ |
||||
_data = .; |
||||
.data : |
||||
{ |
||||
*(.data) |
||||
*(.data.*) |
||||
*(.gnu.linkonce.d*) |
||||
} |
||||
|
||||
. = ALIGN(16); |
||||
_gp = .; /* Global pointer addr */ |
||||
PROVIDE (gp = .); |
||||
|
||||
.sdata : |
||||
{ |
||||
*(.sdata) |
||||
*(.sdata.*) |
||||
*(.gnu.linkonce.s.*) |
||||
} |
||||
. = ALIGN(4); |
||||
|
||||
_edata = .; |
||||
PROVIDE (edata = .); |
||||
|
||||
/* UNINIT DATA - Small uninitialized data is first so it's |
||||
* adjacent to sdata and can be referenced via gp. The normal |
||||
* bss follows. We keep it adjacent to simplify init code. |
||||
*/ |
||||
__bss_start = .; |
||||
.sbss : |
||||
{ |
||||
*(.sbss) |
||||
*(.sbss.*) |
||||
*(.gnu.linkonce.sb.*) |
||||
*(.scommon) |
||||
} |
||||
. = ALIGN(4); |
||||
.bss : |
||||
{ |
||||
*(.bss) |
||||
*(.bss.*) |
||||
*(.dynbss) |
||||
*(COMMON) |
||||
*(.scommon) |
||||
} |
||||
. = ALIGN(4); |
||||
_end = .; |
||||
PROVIDE (end = .); |
||||
|
||||
/* DEBUG -- symbol table, string table, etc. etc. |
||||
*/ |
||||
.stab 0 : { *(.stab) } |
||||
.stabstr 0 : { *(.stabstr) } |
||||
.stab.excl 0 : { *(.stab.excl) } |
||||
.stab.exclstr 0 : { *(.stab.exclstr) } |
||||
.stab.index 0 : { *(.stab.index) } |
||||
.stab.indexstr 0 : { *(.stab.indexstr) } |
||||
.comment 0 : { *(.comment) } |
||||
.debug 0 : { *(.debug) } |
||||
.line 0 : { *(.line) } |
||||
.debug_srcinfo 0 : { *(.debug_srcinfo) } |
||||
.debug_sfnames 0 : { *(.debug_sfnames) } |
||||
.debug_aranges 0 : { *(.debug_aranges) } |
||||
.debug_pubnames 0 : { *(.debug_pubnames) } |
||||
.debug_info 0 : { *(.debug_info) } |
||||
.debug_abbrev 0 : { *(.debug_abbrev) } |
||||
.debug_line 0 : { *(.debug_line) } |
||||
.debug_frame 0 : { *(.debug_frame) } |
||||
.debug_str 0 : { *(.debug_str) } |
||||
.debug_loc 0 : { *(.debug_loc) } |
||||
.debug_macinfo 0 : { *(.debug_macinfo) } |
||||
.debug_weaknames 0 : { *(.debug_weaknames) } |
||||
.debug_funcnames 0 : { *(.debug_funcnames) } |
||||
.debug_typenames 0 : { *(.debug_typenames) } |
||||
.debug_varnames 0 : { *(.debug_varnames) } |
||||
} |
||||
@ -0,0 +1,44 @@ |
||||
#
|
||||
# (C) Copyright 2000
|
||||
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
#
|
||||
# See file CREDITS for list of people who contributed to this
|
||||
# project.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation; either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
# MA 02111-1307 USA
|
||||
#
|
||||
|
||||
include $(TOPDIR)/config.mk |
||||
|
||||
LIB = lib$(CPU).a
|
||||
|
||||
START = start.o
|
||||
AOBJS = exceptions.o
|
||||
OBJS = cpu.o interrupts.o serial.o traps.o
|
||||
|
||||
all: .depend $(START) $(LIB) |
||||
|
||||
$(LIB): $(OBJS) $(AOBJS) |
||||
$(AR) crv $@ $(OBJS) $(AOBJS)
|
||||
|
||||
#########################################################################
|
||||
|
||||
.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c) $(AOBJS:.o=.S) |
||||
$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) $(AOBJS:.o=.S) > $@
|
||||
|
||||
sinclude .depend |
||||
|
||||
#########################################################################
|
||||
@ -0,0 +1,24 @@ |
||||
#
|
||||
# (C) Copyright 2000
|
||||
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
#
|
||||
# See file CREDITS for list of people who contributed to this
|
||||
# project.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation; either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
# MA 02111-1307 USA
|
||||
#
|
||||
|
||||
PLATFORM_RELFLAGS +=
|
||||
@ -0,0 +1,62 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
#include <nios2.h> |
||||
#include <nios2-io.h> |
||||
|
||||
#if defined (CFG_NIOS_SYSID_BASE) |
||||
#include <linux/time.h> |
||||
static void check_sysid (void) |
||||
{ |
||||
struct nios_sysid_t *sysid = |
||||
(struct nios_sysid_t *)CACHE_BYPASS(CFG_NIOS_SYSID_BASE); |
||||
struct tm t; |
||||
char asc[32]; |
||||
|
||||
localtime_r ((time_t *)&sysid->timestamp, &t); |
||||
asctime_r (&t, asc); |
||||
printf ("SYSID : %08x, %s", sysid->id, asc); |
||||
|
||||
} |
||||
#endif /* CFG_NIOS_SYSID_BASE */ |
||||
|
||||
int checkcpu (void) |
||||
{ |
||||
printf ("CPU : Nios-II\n"); |
||||
#if !defined(CFG_NIOS_SYSID_BASE) |
||||
printf ("SYSID : <unknown>\n"); |
||||
#else |
||||
check_sysid (); |
||||
#endif |
||||
return (0); |
||||
} |
||||
|
||||
|
||||
int do_reset (void) |
||||
{ |
||||
void (*rst)(void) = (void(*)(void))CFG_RESET_ADDR; |
||||
disable_interrupts (); |
||||
rst(); |
||||
return(0); |
||||
} |
||||
@ -0,0 +1,152 @@ |
||||
/* |
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com>
|
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <config.h> |
||||
#include <asm/opcodes.h> |
||||
|
||||
|
||||
.text |
||||
.align 4
|
||||
|
||||
.global _exception
|
||||
|
||||
_exception: |
||||
/* SAVE ALL REGS -- this allows trap and unimplemented |
||||
* instruction handlers to be coded conveniently in C |
||||
*/ |
||||
addi sp, sp, -(33*4) |
||||
stw r0, 0(sp) |
||||
stw r1, 4(sp) |
||||
stw r2, 8(sp) |
||||
stw r3, 12(sp) |
||||
stw r4, 16(sp) |
||||
stw r5, 20(sp) |
||||
stw r6, 24(sp) |
||||
stw r7, 28(sp) |
||||
stw r8, 32(sp) |
||||
stw r9, 36(sp) |
||||
stw r10, 40(sp) |
||||
stw r11, 44(sp) |
||||
stw r12, 48(sp) |
||||
stw r13, 52(sp) |
||||
stw r14, 56(sp) |
||||
stw r15, 60(sp) |
||||
stw r16, 64(sp) |
||||
stw r17, 68(sp) |
||||
stw r19, 72(sp) |
||||
stw r19, 76(sp) |
||||
stw r20, 80(sp) |
||||
stw r21, 84(sp) |
||||
stw r22, 88(sp) |
||||
stw r23, 92(sp) |
||||
stw r24, 96(sp) |
||||
stw r25, 100(sp) |
||||
stw r26, 104(sp) |
||||
stw r27, 108(sp) |
||||
stw r28, 112(sp) |
||||
stw r29, 116(sp) |
||||
stw r30, 120(sp) |
||||
stw r31, 124(sp) |
||||
rdctl et, estatus |
||||
stw et, 128(sp) |
||||
|
||||
/* If interrupts are disabled -- software interrupt */ |
||||
rdctl et, estatus |
||||
andi et, et, 1 |
||||
beq et, r0, 0f |
||||
|
||||
/* If no interrupts are pending -- software interrupt */ |
||||
rdctl et, ipending |
||||
beq et, r0, 0f |
||||
|
||||
/* HARDWARE INTERRUPT: Call interrupt handler */ |
||||
movhi r3, %hi(external_interrupt) |
||||
ori r3, r3, %lo(external_interrupt) |
||||
mov r4, sp /* ptr to regs */ |
||||
callr r3 |
||||
|
||||
/* Return address fixup: execution resumes by re-issue of |
||||
* interrupted instruction at ea-4 (ea == r29). Here we do |
||||
* simple fixup to allow common exception return. |
||||
*/ |
||||
ldw r3, 116(sp) |
||||
addi r3, r3, -4 |
||||
stw r3, 116(sp) |
||||
br _exception_return |
||||
|
||||
0: |
||||
/* TRAP EXCEPTION */ |
||||
movhi r3, %hi(OPC_TRAP) |
||||
ori r3, r3, %lo(OPC_TRAP) |
||||
addi r1, ea, -4 |
||||
ldw r1, 0(r1) |
||||
bne r1, r3, 1f |
||||
movhi r3, %hi(trap_handler) |
||||
ori r3, r3, %lo(trap_handler) |
||||
mov r4, sp /* ptr to regs */ |
||||
callr r3 |
||||
br _exception_return |
||||
|
||||
1: |
||||
/* UNIMPLEMENTED INSTRUCTION EXCEPTION */ |
||||
movhi r3, %hi(soft_emulation) |
||||
ori r3, r3, %lo(soft_emulation) |
||||
mov r4, sp /* ptr to regs */ |
||||
callr r3 |
||||
|
||||
/* Restore regsisters and return from exception*/ |
||||
_exception_return: |
||||
ldw r1, 4(sp) |
||||
ldw r2, 8(sp) |
||||
ldw r3, 12(sp) |
||||
ldw r4, 16(sp) |
||||
ldw r5, 20(sp) |
||||
ldw r6, 24(sp) |
||||
ldw r7, 28(sp) |
||||
ldw r8, 32(sp) |
||||
ldw r9, 36(sp) |
||||
ldw r10, 40(sp) |
||||
ldw r11, 44(sp) |
||||
ldw r12, 48(sp) |
||||
ldw r13, 52(sp) |
||||
ldw r14, 56(sp) |
||||
ldw r15, 60(sp) |
||||
ldw r16, 64(sp) |
||||
ldw r17, 68(sp) |
||||
ldw r19, 72(sp) |
||||
ldw r19, 76(sp) |
||||
ldw r20, 80(sp) |
||||
ldw r21, 84(sp) |
||||
ldw r22, 88(sp) |
||||
ldw r23, 92(sp) |
||||
ldw r24, 96(sp) |
||||
ldw r25, 100(sp) |
||||
ldw r26, 104(sp) |
||||
ldw r27, 108(sp) |
||||
ldw r28, 112(sp) |
||||
ldw r29, 116(sp) |
||||
ldw r30, 120(sp) |
||||
ldw r31, 124(sp) |
||||
addi sp, sp, (33*4) |
||||
eret |
||||
/*-------------------------------------------------------------*/ |
||||
@ -0,0 +1,229 @@ |
||||
/*
|
||||
* (C) Copyright 2000-2002 |
||||
* Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
||||
* |
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
|
||||
#include <nios2.h> |
||||
#include <nios2-io.h> |
||||
#include <asm/ptrace.h> |
||||
#include <common.h> |
||||
#include <command.h> |
||||
#include <watchdog.h> |
||||
#ifdef CONFIG_STATUS_LED |
||||
#include <status_led.h> |
||||
#endif |
||||
|
||||
#if defined(CFG_NIOS_TMRBASE) && !defined(CFG_NIOS_TMRIRQ) |
||||
#error CFG_NIOS_TMRIRQ not defined (see documentation) |
||||
#endif |
||||
|
||||
/****************************************************************************/ |
||||
|
||||
struct irq_action { |
||||
interrupt_handler_t *handler; |
||||
void *arg; |
||||
int count; |
||||
}; |
||||
|
||||
static struct irq_action vecs[32]; |
||||
|
||||
/*************************************************************************/ |
||||
volatile ulong timestamp = 0; |
||||
|
||||
void reset_timer (void) |
||||
{ |
||||
timestamp = 0; |
||||
} |
||||
|
||||
ulong get_timer (ulong base) |
||||
{ |
||||
WATCHDOG_RESET (); |
||||
return (timestamp - base); |
||||
} |
||||
|
||||
void set_timer (ulong t) |
||||
{ |
||||
timestamp = t; |
||||
} |
||||
|
||||
|
||||
/* The board must handle this interrupt if a timer is not
|
||||
* provided. |
||||
*/ |
||||
#if defined(CFG_NIOS_TMRBASE) |
||||
void tmr_isr (void *arg) |
||||
{ |
||||
nios_timer_t *tmr = (nios_timer_t *)arg; |
||||
/* Interrupt is cleared by writing anything to the
|
||||
* status register. |
||||
*/ |
||||
tmr->status = 0; |
||||
timestamp += CFG_NIOS_TMRMS; |
||||
#ifdef CONFIG_STATUS_LED |
||||
status_led_tick(timestamp); |
||||
#endif |
||||
} |
||||
|
||||
static void tmr_init (void) |
||||
{ |
||||
nios_timer_t *tmr =(nios_timer_t *)CACHE_BYPASS(CFG_NIOS_TMRBASE); |
||||
|
||||
tmr->control &= ~(NIOS_TIMER_START | NIOS_TIMER_ITO); |
||||
tmr->control |= NIOS_TIMER_STOP; |
||||
#if defined(CFG_NIOS_TMRCNT) |
||||
tmr->periodl = CFG_NIOS_TMRCNT & 0xffff; |
||||
tmr->periodh = (CFG_NIOS_TMRCNT >> 16) & 0xffff; |
||||
#endif |
||||
tmr->control |= ( NIOS_TIMER_ITO | |
||||
NIOS_TIMER_CONT | |
||||
NIOS_TIMER_START ); |
||||
irq_install_handler (CFG_NIOS_TMRIRQ, tmr_isr, (void *)tmr); |
||||
} |
||||
|
||||
#endif /* CFG_NIOS_TMRBASE */ |
||||
|
||||
/*************************************************************************/ |
||||
int disable_interrupts (void) |
||||
{ |
||||
int val = rdctl (CTL_STATUS); |
||||
wrctl (CTL_STATUS, val & ~STATUS_IE); |
||||
return (val & STATUS_IE); |
||||
} |
||||
|
||||
void enable_interrupts( void ) |
||||
{ |
||||
int val = rdctl (CTL_STATUS); |
||||
wrctl (CTL_STATUS, val | STATUS_IE); |
||||
} |
||||
|
||||
void external_interrupt (struct pt_regs *regs) |
||||
{ |
||||
unsigned irqs; |
||||
struct irq_action *act; |
||||
|
||||
/* Evaluate only irqs that are both enabled AND pending */ |
||||
irqs = rdctl (CTL_IENABLE) & rdctl (CTL_IPENDING); |
||||
act = vecs; |
||||
|
||||
/* Assume (as does the Nios2 HAL) that bit 0 is highest
|
||||
* priority. NOTE: There is ALWAYS a handler assigned |
||||
* (the default if no other). |
||||
*/ |
||||
while (irqs) { |
||||
if (irqs & 1) { |
||||
act->handler (act->arg); |
||||
act->count++; |
||||
} |
||||
irqs >>=1; |
||||
act++; |
||||
} |
||||
} |
||||
|
||||
static void def_hdlr (void *arg) |
||||
{ |
||||
unsigned irqs = rdctl (CTL_IENABLE); |
||||
|
||||
/* Disable the individual interrupt -- with gratuitous
|
||||
* warning. |
||||
*/ |
||||
irqs &= ~(1 << (int)arg); |
||||
wrctl (CTL_IENABLE, irqs); |
||||
printf ("WARNING: Disabling unhandled interrupt: %d\n", |
||||
(int)arg); |
||||
} |
||||
|
||||
/*************************************************************************/ |
||||
void irq_install_handler (int irq, interrupt_handler_t *hdlr, void *arg) |
||||
{ |
||||
|
||||
int flag; |
||||
struct irq_action *act; |
||||
unsigned ena = rdctl (CTL_IENABLE); |
||||
|
||||
if ((irq < 0) || (irq > 31)) |
||||
return; |
||||
act = &vecs[irq]; |
||||
|
||||
flag = disable_interrupts (); |
||||
if (hdlr) { |
||||
act->handler = hdlr; |
||||
act->arg = arg; |
||||
ena |= (1 << irq); /* enable */ |
||||
} else { |
||||
act->handler = def_hdlr; |
||||
act->arg = (void *)irq; |
||||
ena &= ~(1 << irq); /* disable */ |
||||
} |
||||
wrctl (CTL_IENABLE, ena); |
||||
if (flag) enable_interrupts (); |
||||
} |
||||
|
||||
|
||||
int interrupt_init (void) |
||||
{ |
||||
int i; |
||||
|
||||
/* Assign the default handler to all */ |
||||
for (i = 0; i < 32; i++) { |
||||
vecs[i].handler = def_hdlr; |
||||
vecs[i].arg = (void *)i; |
||||
vecs[i].count = 0; |
||||
} |
||||
|
||||
#if defined(CFG_NIOS_TMRBASE) |
||||
tmr_init (); |
||||
#endif |
||||
|
||||
enable_interrupts (); |
||||
return (0); |
||||
} |
||||
|
||||
|
||||
/*************************************************************************/ |
||||
#if (CONFIG_COMMANDS & CFG_CMD_IRQ) |
||||
int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) |
||||
{ |
||||
int i; |
||||
struct irq_action *act = vecs; |
||||
|
||||
printf ("\nInterrupt-Information:\n\n"); |
||||
printf ("Nr Routine Arg Count\n"); |
||||
printf ("-----------------------------\n"); |
||||
|
||||
for (i=0; i<32; i++) { |
||||
if (act->handler != def_hdlr) { |
||||
printf ("%02d %08lx %08lx %d\n", |
||||
i, |
||||
(ulong)act->handler, |
||||
(ulong)act->arg, |
||||
act->count); |
||||
} |
||||
act++; |
||||
} |
||||
printf ("\n"); |
||||
|
||||
return (0); |
||||
} |
||||
#endif /* CONFIG_COMMANDS & CFG_CMD_IRQ */ |
||||
@ -0,0 +1,144 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
|
||||
#include <common.h> |
||||
#include <watchdog.h> |
||||
#include <nios2.h> |
||||
#include <nios2-io.h> |
||||
|
||||
/*------------------------------------------------------------------
|
||||
* JTAG acts as the serial port |
||||
*-----------------------------------------------------------------*/ |
||||
#if defined(CONFIG_CONSOLE_JTAG) |
||||
|
||||
static nios_jtag_t *jtag = |
||||
(nios_jtag_t *)CACHE_BYPASS(CFG_NIOS_CONSOLE); |
||||
|
||||
void serial_setbrg( void ){ return; } |
||||
int serial_init( void ) { return(0);} |
||||
|
||||
void serial_putc (char c) |
||||
{ |
||||
unsigned val; |
||||
|
||||
while (NIOS_JTAG_WSPACE (jtag->control) == 0) |
||||
WATCHDOG_RESET (); |
||||
jtag->data = (unsigned char)c; |
||||
} |
||||
|
||||
void serial_puts (const char *s) |
||||
{ |
||||
while (*s != 0) |
||||
serial_putc (*s++); |
||||
} |
||||
|
||||
int serial_tstc (void) |
||||
{ |
||||
return (jtag->control & NIOS_JTAG_RRDY); |
||||
} |
||||
|
||||
int serial_getc (void) |
||||
{ |
||||
int c; |
||||
unsigned val; |
||||
|
||||
while (1) { |
||||
WATCHDOG_RESET (); |
||||
val = jtag->data; |
||||
if (val & NIOS_JTAG_RVALID) |
||||
break; |
||||
} |
||||
c = val & 0x0ff; |
||||
return (c); |
||||
} |
||||
|
||||
/*------------------------------------------------------------------
|
||||
* UART the serial port |
||||
*-----------------------------------------------------------------*/ |
||||
#else |
||||
|
||||
static nios_uart_t *uart = (nios_uart_t *) |
||||
CACHE_BYPASS(CFG_NIOS_CONSOLE); |
||||
|
||||
#if defined(CFG_NIOS_FIXEDBAUD) |
||||
|
||||
/* Everything's already setup for fixed-baud PTF
|
||||
* assignment |
||||
*/ |
||||
void serial_setbrg (void){ return; } |
||||
int serial_init (void) { return (0);} |
||||
|
||||
#else |
||||
|
||||
void serial_setbrg (void) |
||||
{ |
||||
DECLARE_GLOBAL_DATA_PTR; |
||||
unsigned div; |
||||
|
||||
div = (CONFIG_SYS_CLK_FREQ/gd->baudrate)-1; |
||||
uart->divisor = div; |
||||
return; |
||||
} |
||||
|
||||
int serial_init (void) |
||||
{ |
||||
serial_setbrg (); |
||||
return (0); |
||||
} |
||||
|
||||
#endif /* CFG_NIOS_FIXEDBAUD */ |
||||
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
* UART CONSOLE |
||||
*---------------------------------------------------------------------*/ |
||||
void serial_putc (char c) |
||||
{ |
||||
if (c == '\n') |
||||
serial_putc ('\r'); |
||||
while ((uart->status & NIOS_UART_TRDY) == 0) |
||||
WATCHDOG_RESET (); |
||||
uart->txdata = (unsigned char)c; |
||||
} |
||||
|
||||
void serial_puts (const char *s) |
||||
{ |
||||
while (*s != 0) { |
||||
serial_putc (*s++); |
||||
} |
||||
} |
||||
|
||||
int serial_tstc (void) |
||||
{ |
||||
return (uart->status & NIOS_UART_RRDY); |
||||
} |
||||
|
||||
int serial_getc (void) |
||||
{ |
||||
while (serial_tstc () == 0) |
||||
WATCHDOG_RESET (); |
||||
return( uart->rxdata & 0x00ff ); |
||||
} |
||||
|
||||
#endif /* CONFIG_JTAG_CONSOLE */ |
||||
@ -0,0 +1,211 @@ |
||||
/* |
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com>
|
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
|
||||
#include <config.h> |
||||
#include <version.h> |
||||
|
||||
/************************************************************************* |
||||
* RESTART |
||||
************************************************************************/ |
||||
|
||||
.text |
||||
.global _start
|
||||
|
||||
_start: |
||||
/* ICACHE INIT -- only the icache line at the reset address |
||||
* is invalidated at reset. So the init must stay within |
||||
* the cache line size (8 words). If GERMS is used, we'll |
||||
* just be invalidating the cache a second time. If cache |
||||
* is not implemented initi behaves as nop. |
||||
*/ |
||||
movhi r4, %hi(CFG_ICACHELINE_SIZE) |
||||
ori r4, r4, %lo(CFG_ICACHELINE_SIZE) |
||||
movhi r5, %hi(CFG_ICACHE_SIZE) |
||||
ori r5, r5, %lo(CFG_ICACHE_SIZE) |
||||
mov r6, r0 |
||||
0: initi r6 |
||||
add r6, r6, r4 |
||||
bltu r6, r5, 0b |
||||
|
||||
/* INTERRUPTS -- for now, all interrupts masked and globally |
||||
* disabled. |
||||
*/ |
||||
wrctl status, r0 /* Disable interrupts */ |
||||
wrctl ienable, r0 /* All disabled */ |
||||
|
||||
/* DCACHE INIT -- if dcache not implemented, initd behaves as |
||||
* nop. |
||||
*/ |
||||
movhi r4, %hi(CFG_DCACHELINE_SIZE) |
||||
ori r4, r4, %lo(CFG_DCACHELINE_SIZE) |
||||
movhi r5, %hi(CFG_DCACHE_SIZE) |
||||
ori r5, r5, %lo(CFG_DCACHE_SIZE) |
||||
mov r6, r0 |
||||
1: initd 0(r6) |
||||
add r6, r6, r4 |
||||
bltu r6, r5, 1b |
||||
|
||||
/* RELOCATE CODE, DATA & COMMAND TABLE -- the following code |
||||
* assumes code, data and the command table are all |
||||
* contiguous. This lets us relocate everything as a single |
||||
* block. Make sure the linker script matches this ;-)
|
||||
*/ |
||||
nextpc r4 |
||||
_cur: movhi r5, %hi(_cur - _start) |
||||
ori r5, r5, %lo(_cur - _start) |
||||
sub r4, r4, r5 /* r4 <- cur _start */ |
||||
mov r8, r4 |
||||
movhi r5, %hi(_start) |
||||
ori r5, r5, %lo(_start) /* r5 <- linked _start */ |
||||
beq r4, r5, 3f |
||||
|
||||
movhi r6, %hi(_edata) |
||||
ori r6, r6, %lo(_edata) |
||||
2: ldwio r7, 0(r4) |
||||
addi r4, r4, 4 |
||||
stwio r7, 0(r5) |
||||
addi r5, r5, 4 |
||||
bne r5, r6, 2b |
||||
3: |
||||
|
||||
/* ZERO BSS/SBSS -- bss and sbss are assumed to be adjacent |
||||
* and between __bss_start and _end. |
||||
*/ |
||||
movhi r5, %hi(__bss_start) |
||||
ori r5, r5, %lo(__bss_start) |
||||
movhi r6, %hi(_end) |
||||
ori r6, r6, %lo(_end) |
||||
beq r5, r6, 5f |
||||
|
||||
4: stwio r0, 0(r5) |
||||
addi r5, r5, 4 |
||||
bne r5, r6, 4b |
||||
5: |
||||
|
||||
/* GLOBAL POINTER -- the global pointer is used to reference |
||||
* "small data" (see -G switch). The linker script must |
||||
* provide the gp address. |
||||
*/ |
||||
movhi gp, %hi(_gp) |
||||
ori gp, gp, %lo(_gp) |
||||
|
||||
/* JUMP TO RELOC ADDR */ |
||||
movhi r4, %hi(_reloc) |
||||
ori r4, r4, %lo(_reloc) |
||||
jmp r4 |
||||
_reloc: |
||||
|
||||
/* COPY EXCEPTION TRAMPOLINE -- copy the tramp to the |
||||
* exception address. |
||||
*/ |
||||
#if !defined(CONFIG_ROM_STUBS) |
||||
movhi r4, %hi(_except_start) |
||||
ori r4, r4, %lo(_except_start) |
||||
movhi r5, %hi(_except_end) |
||||
ori r5, r5, %lo(_except_end) |
||||
movhi r6, %hi(CFG_EXCEPTION_ADDR) |
||||
ori r6, r6, %lo(CFG_EXCEPTION_ADDR) |
||||
|
||||
6: ldwio r7, 0(r4) |
||||
stwio r7, 0(r6) |
||||
addi r4, r4, 4 |
||||
addi r6, r6, 4 |
||||
bne r4, r5, 6b |
||||
#endif |
||||
|
||||
/* STACK INIT -- zero top two words for call back chain. |
||||
*/ |
||||
movhi sp, %hi(CFG_INIT_SP) |
||||
ori sp, sp, %lo(CFG_INIT_SP) |
||||
addi sp, sp, -8 |
||||
stw r0, 0(sp) |
||||
stw r0, 4(sp) |
||||
mov fp, sp |
||||
|
||||
/* |
||||
* Call board_init -- never returns |
||||
*/ |
||||
movhi r4, %hi(board_init@h)
|
||||
ori r4, r4, %lo(board_init@h)
|
||||
callr r4 |
||||
|
||||
/* NEVER RETURNS -- but branch to the _start just |
||||
* in case ;-)
|
||||
*/ |
||||
br _start |
||||
|
||||
/* EXCEPTION TRAMPOLINE -- the following gets copied |
||||
* to the exception address. |
||||
*/ |
||||
_except_start: |
||||
movhi et, %hi(_exception) |
||||
ori et, et, %lo(_exception) |
||||
jmp et |
||||
_except_end: |
||||
|
||||
|
||||
/* |
||||
* dly_clks -- Nios2 (like Nios1) doesn't have a timebase in |
||||
* the core. For simple delay loops, we do our best by counting |
||||
* instruction cycles. |
||||
* |
||||
* Instruction performance varies based on the core. For cores |
||||
* with icache and static/dynamic branch prediction (II/f, II/s): |
||||
* |
||||
* Normal ALU (e.g. add, cmp, etc): 1 cycle |
||||
* Branch (correctly predicted, taken): 2 cycles |
||||
* Negative offset is predicted (II/s). |
||||
* |
||||
* For cores without icache and no branch prediction (II/e): |
||||
* |
||||
* Normal ALU (e.g. add, cmp, etc): 6 cycles |
||||
* Branch (no prediction): 6 cycles |
||||
* |
||||
* For simplicity, if an instruction cache is implemented we |
||||
* assume II/f or II/s. Otherwise, we use the II/e. |
||||
* |
||||
*/ |
||||
.globl dly_clks
|
||||
|
||||
dly_clks: |
||||
|
||||
#if (CFG_ICACHE_SIZE > 0) |
||||
subi r4, r4, 3 /* 3 clocks/loop */ |
||||
#else |
||||
subi r4, r4, 12 /* 12 clocks/loop */ |
||||
#endif |
||||
bge r4, r0, dly_clks |
||||
ret |
||||
|
||||
|
||||
#if !defined(CONFIG_IDENT_STRING) |
||||
#define CONFIG_IDENT_STRING "" |
||||
#endif |
||||
.data |
||||
.globl version_string
|
||||
|
||||
version_string: |
||||
.ascii U_BOOT_VERSION
|
||||
.ascii " (", __DATE__, " - ", __TIME__, ")" |
||||
.ascii CONFIG_IDENT_STRING, "\0" |
||||
@ -0,0 +1,42 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <asm/ptrace.h> |
||||
#include <common.h> |
||||
|
||||
void trap_handler (struct pt_regs *regs) |
||||
{ |
||||
/* Just issue warning */ |
||||
printf ("\n\n*** WARNING: unimplemented trap @ %08x\n\n", |
||||
regs->reg[29] - 4); |
||||
} |
||||
|
||||
void soft_emulation (struct pt_regs *regs) |
||||
{ |
||||
/* TODO: Software emulation of mul/div etc. Until this is
|
||||
* implemented, generate warning and hang. |
||||
*/ |
||||
printf ("\n\n*** ERROR: unimplemented instruction @ %08x\n", |
||||
regs->reg[29] - 4); |
||||
hang (); |
||||
} |
||||
@ -0,0 +1,133 @@ |
||||
/* |
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
|
||||
OUTPUT_FORMAT("elf32-littlenios2") |
||||
OUTPUT_ARCH(nios2) |
||||
ENTRY(_start) |
||||
|
||||
SECTIONS |
||||
{ |
||||
.text : |
||||
{ |
||||
*(.text) |
||||
*(.text.*) |
||||
*(.gnu.linkonce.t*) |
||||
*(.rodata) |
||||
*(.rodata.*) |
||||
*(.gnu.linkonce.r*) |
||||
} |
||||
. = ALIGN (4); |
||||
_etext = .; |
||||
PROVIDE (etext = .); |
||||
|
||||
/* INIT DATA sections - "Small" data (see the gcc -G option) |
||||
* is always gp-relative. Here we make all init data sections |
||||
* adjacent to simplify the startup code -- and provide |
||||
* the global pointer for gp-relative access. |
||||
*/ |
||||
_data = .; |
||||
.data : |
||||
{ |
||||
*(.data) |
||||
*(.data.*) |
||||
*(.gnu.linkonce.d*) |
||||
} |
||||
|
||||
. = ALIGN(16); |
||||
_gp = .; /* Global pointer addr */ |
||||
PROVIDE (gp = .); |
||||
|
||||
.sdata : |
||||
{ |
||||
*(.sdata) |
||||
*(.sdata.*) |
||||
*(.gnu.linkonce.s.*) |
||||
} |
||||
. = ALIGN(4); |
||||
|
||||
_edata = .; |
||||
PROVIDE (edata = .); |
||||
|
||||
/* UNINIT DATA - Small uninitialized data is first so it's |
||||
* adjacent to sdata and can be referenced via gp. The normal |
||||
* bss follows. We keep it adjacent to simplify init code. |
||||
*/ |
||||
__bss_start = .; |
||||
.sbss : |
||||
{ |
||||
*(.sbss) |
||||
*(.sbss.*) |
||||
*(.gnu.linkonce.sb.*) |
||||
*(.scommon) |
||||
} |
||||
. = ALIGN(4); |
||||
.bss : |
||||
{ |
||||
*(.bss) |
||||
*(.bss.*) |
||||
*(.dynbss) |
||||
*(COMMON) |
||||
*(.scommon) |
||||
} |
||||
. = ALIGN(4); |
||||
_end = .; |
||||
PROVIDE (end = .); |
||||
|
||||
/* CMD TABLE - uboot command sections |
||||
*/ |
||||
__uboot_cmd_start = .; |
||||
.u_boot_cmd : |
||||
{ |
||||
*(.u_boot_cmd) |
||||
} |
||||
. = ALIGN(4); |
||||
__u_boot_cmd_end = .; |
||||
|
||||
/* DEBUG -- symbol table, string table, etc. etc. |
||||
*/ |
||||
.stab 0 : { *(.stab) } |
||||
.stabstr 0 : { *(.stabstr) } |
||||
.stab.excl 0 : { *(.stab.excl) } |
||||
.stab.exclstr 0 : { *(.stab.exclstr) } |
||||
.stab.index 0 : { *(.stab.index) } |
||||
.stab.indexstr 0 : { *(.stab.indexstr) } |
||||
.comment 0 : { *(.comment) } |
||||
.debug 0 : { *(.debug) } |
||||
.line 0 : { *(.line) } |
||||
.debug_srcinfo 0 : { *(.debug_srcinfo) } |
||||
.debug_sfnames 0 : { *(.debug_sfnames) } |
||||
.debug_aranges 0 : { *(.debug_aranges) } |
||||
.debug_pubnames 0 : { *(.debug_pubnames) } |
||||
.debug_info 0 : { *(.debug_info) } |
||||
.debug_abbrev 0 : { *(.debug_abbrev) } |
||||
.debug_line 0 : { *(.debug_line) } |
||||
.debug_frame 0 : { *(.debug_frame) } |
||||
.debug_str 0 : { *(.debug_str) } |
||||
.debug_loc 0 : { *(.debug_loc) } |
||||
.debug_macinfo 0 : { *(.debug_macinfo) } |
||||
.debug_weaknames 0 : { *(.debug_weaknames) } |
||||
.debug_funcnames 0 : { *(.debug_funcnames) } |
||||
.debug_typenames 0 : { *(.debug_typenames) } |
||||
.debug_varnames 0 : { *(.debug_varnames) } |
||||
} |
||||
@ -0,0 +1,37 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_BITOPS_H_ |
||||
#define __ASM_NIOS2_BITOPS_H_ |
||||
|
||||
|
||||
extern void set_bit(int nr, volatile void * a); |
||||
extern void clear_bit(int nr, volatile void * a); |
||||
extern int test_and_clear_bit(int nr, volatile void * a); |
||||
extern void change_bit(unsigned long nr, volatile void *addr); |
||||
extern int test_and_set_bit(int nr, volatile void * a); |
||||
extern int test_and_change_bit(int nr, volatile void * addr); |
||||
extern int test_bit(int nr, volatile void * a); |
||||
extern int ffs(int i); |
||||
|
||||
#endif /* __ASM_NIOS2_BITOPS_H */ |
||||
@ -0,0 +1,30 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_BYTEORDER_H_ |
||||
#define __ASM_NIOS2_BYTEORDER_H_ |
||||
|
||||
#include <asm/types.h> |
||||
#include <linux/byteorder/little_endian.h> |
||||
|
||||
#endif /* __ASM_NIOS2_BYTEORDER_H_ */ |
||||
@ -0,0 +1,30 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_CACHE_H_ |
||||
#define __ASM_NIOS2_CACHE_H_ |
||||
|
||||
extern void flush_dcache (unsigned long start, unsigned long size); |
||||
extern void flush_icache (unsigned long start, unsigned long size); |
||||
|
||||
#endif /* __ASM_NIOS2_CACHE_H_ */ |
||||
@ -0,0 +1,50 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
#ifndef __ASM_NIOS2_GLOBALDATA_H_ |
||||
#define __ASM_NIOS2_GLOBALDATA_H_ |
||||
|
||||
typedef struct global_data { |
||||
bd_t *bd; |
||||
unsigned long flags; |
||||
unsigned long baudrate; |
||||
unsigned long cpu_clk; /* CPU clock in Hz! */ |
||||
unsigned long have_console; /* serial_init() was called */ |
||||
unsigned long ram_size; /* RAM size */ |
||||
unsigned long reloc_off; /* Relocation Offset */ |
||||
unsigned long env_addr; /* Address of Environment struct */ |
||||
unsigned long env_valid; /* Checksum of Environment valid */ |
||||
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) |
||||
unsigned long post_log_word; /* Record POST activities */ |
||||
unsigned long post_init_f_time; /* When post_init_f started */ |
||||
#endif |
||||
void **jt; /* Standalone app jump table */ |
||||
} gd_t; |
||||
|
||||
/* flags */ |
||||
#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ |
||||
#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ |
||||
#define GD_FLG_SILENT 0x00004 /* Silent mode */ |
||||
|
||||
#define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm ("r15") |
||||
|
||||
#endif /* __ASM_NIOS2_GLOBALDATA_H_ */ |
||||
@ -0,0 +1,36 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_IO_H_ |
||||
#define __ASM_NIOS2_IO_H_ |
||||
|
||||
#define sync() asm volatile ("sync" : : : "memory"); |
||||
|
||||
extern unsigned char inb (unsigned char *port); |
||||
extern unsigned short inw (unsigned short *port); |
||||
extern unsigned inl (unsigned port); |
||||
extern void outb (unsigned char val, unsigned char *port); |
||||
extern void outw (unsigned short val, unsigned short *port); |
||||
extern void outl (unsigned val, unsigned port); |
||||
|
||||
#endif /* __ASM_NIOS2_IO_H_ */ |
||||
@ -0,0 +1,131 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_OPCODES_H_ |
||||
#define __ASM_NIOS2_OPCODES_H_ |
||||
|
||||
#define OPCODE_OP(inst) ((inst) & 0x3f) |
||||
#define OPCODE_OPX(inst) (((inst)>>11) & 0x3f) |
||||
#define OPCODE_RA(inst) (((inst)>>27) & 01f) |
||||
#define OPCODE_RB(inst) (((inst)>>22) & 01f) |
||||
#define OPCODE_RC(inst) (((inst)>>17) & 01f) |
||||
|
||||
/* I-TYPE (immediate) and J-TYPE (jump) opcodes
|
||||
*/ |
||||
#define OPCODE_CALL 0x00 |
||||
#define OPCODE_LDBU 0x03 |
||||
#define OPCODE_ADDI 0x04 |
||||
#define OPCODE_STB 0x05 |
||||
#define OPCODE_BR 0x06 |
||||
#define OPCODE_LDB 0x07 |
||||
#define OPCODE_CMPGEI 0x08 |
||||
#define OPCODE_LDHU 0x0B |
||||
#define OPCODE_ANDI 0x0C |
||||
#define OPCODE_STH 0x0D |
||||
#define OPCODE_BGE 0x0E |
||||
#define OPCODE_LDH 0x0F |
||||
#define OPCODE_CMPLTI 0x10 |
||||
#define OPCODE_XORI 0x1C |
||||
#define OPCODE_ORI 0x14 |
||||
#define OPCODE_STW 0x15 |
||||
#define OPCODE_BLT 0x16 |
||||
#define OPCODE_LDW 0x17 |
||||
#define OPCODE_CMPNEI 0x18 |
||||
#define OPCODE_BNE 0x1E |
||||
#define OPCODE_CMPEQI 0x20 |
||||
#define OPCODE_LDBUIO 0x23 |
||||
#define OPCODE_MULI 0x24 |
||||
#define OPCODE_STBIO 0x25 |
||||
#define OPCODE_BEQ 0x26 |
||||
#define OPCODE_LDBIO 0x27 |
||||
#define OPCODE_CMPGEUI 0x28 |
||||
#define OPCODE_ANDHI 0x2C |
||||
#define OPCODE_STHIO 0x2D |
||||
#define OPCODE_BGEU 0x2E |
||||
#define OPCODE_LDHIO 0x2F |
||||
#define OPCODE_CMPLTUI 0x30 |
||||
#define OPCODE_CUSTOM 0x32 |
||||
#define OPCODE_INITD 0x33 |
||||
#define OPCODE_ORHI 0x34 |
||||
#define OPCODE_STWIO 0x35 |
||||
#define OPCODE_BLTU 0x36 |
||||
#define OPCODE_LDWIO 0x37 |
||||
#define OPCODE_RTYPE 0x3A |
||||
#define OPCODE_LDHUIO 0x2B |
||||
#define OPCODE_FLUSHD 0x3B |
||||
#define OPCODE_XORHI 0x3C |
||||
|
||||
/* R-Type (register) OPX field encodings
|
||||
*/ |
||||
#define OPCODE_ERET 0x01 |
||||
#define OPCODE_ROLI 0x02 |
||||
#define OPCODE_ROL 0x03 |
||||
#define OPCODE_FLUSHP 0x04 |
||||
#define OPCODE_RET 0x05 |
||||
#define OPCODE_NOR 0x06 |
||||
#define OPCODE_MULXUU 0x07 |
||||
#define OPCODE_CMPGE 0x08 |
||||
#define OPCODE_BRET 0x09 |
||||
#define OPCODE_ROR 0x0B |
||||
#define OPCODE_FLUSHI 0x0C |
||||
#define OPCODE_JMP 0x0D |
||||
#define OPCODE_AND 0x0E |
||||
|
||||
#define OPCODE_CMPLT 0x10 |
||||
#define OPCODE_SLLI 0x12 |
||||
#define OPCODE_SLL 0x13 |
||||
#define OPCODE_OR 0x16 |
||||
#define OPCODE_MULXSU 0x17 |
||||
#define OPCODE_CMPNE 0x18 |
||||
#define OPCODE_SRLI 0x1A |
||||
#define OPCODE_SRL 0x1B |
||||
#define OPCODE_NEXTPC 0x1C |
||||
#define OPCODE_CALLR 0x1D |
||||
#define OPCODE_XOR 0x1E |
||||
#define OPCODE_MULXSS 0x1F |
||||
|
||||
#define OPCODE_CMPEQ 0x20 |
||||
#define OPCODE_CMPLTU 0x30 |
||||
#define OPCODE_ADD 0x31 |
||||
#define OPCODE_DIVU 0x24 |
||||
#define OPCODE_DIV 0x25 |
||||
#define OPCODE_RDCTL 0x26 |
||||
#define OPCODE_MUL 0x27 |
||||
#define OPCODE_CMPGEU 0x28 |
||||
#define OPCODE_TRAP 0x2D |
||||
#define OPCODE_WRCTL 0x2E |
||||
|
||||
#define OPCODE_BREAK 0x34 |
||||
#define OPCODE_SYNC 0x36 |
||||
#define OPCODE_INITI 0x29 |
||||
#define OPCODE_SUB 0x39 |
||||
#define OPCODE_SRAI 0x3A |
||||
#define OPCODE_SRA 0x3B |
||||
|
||||
/*Full instruction encodings for R-Type, without the R's ;-)
|
||||
* |
||||
* TODO: BREAK, BRET, ERET, RET, SYNC (as needed) |
||||
*/ |
||||
#define OPC_TRAP 0x003b683a |
||||
|
||||
#endif /* __ASM_NIOS2_OPCODES_H_ */ |
||||
@ -0,0 +1,63 @@ |
||||
#ifndef __ASM_NIOS2_POSIX_TYPES_H_ |
||||
#define __ASM_NIOS2_POSIX_TYPES_H_ |
||||
|
||||
/*
|
||||
* This file is generally used by user-level software, so you need to |
||||
* be a little careful about namespace pollution etc. Also, we cannot |
||||
* assume GCC is being used. |
||||
*/ |
||||
|
||||
typedef unsigned short __kernel_dev_t; |
||||
typedef unsigned long __kernel_ino_t; |
||||
typedef unsigned short __kernel_mode_t; |
||||
typedef unsigned short __kernel_nlink_t; |
||||
typedef long __kernel_off_t; |
||||
typedef int __kernel_pid_t; |
||||
typedef unsigned short __kernel_ipc_pid_t; |
||||
typedef unsigned short __kernel_uid_t; |
||||
typedef unsigned short __kernel_gid_t; |
||||
typedef unsigned long __kernel_size_t; |
||||
typedef int __kernel_ssize_t; |
||||
typedef int __kernel_ptrdiff_t; |
||||
typedef long __kernel_time_t; |
||||
typedef long __kernel_suseconds_t; |
||||
typedef long __kernel_clock_t; |
||||
typedef int __kernel_daddr_t; |
||||
typedef char * __kernel_caddr_t; |
||||
typedef unsigned short __kernel_uid16_t; |
||||
typedef unsigned short __kernel_gid16_t; |
||||
typedef unsigned int __kernel_uid32_t; |
||||
typedef unsigned int __kernel_gid32_t; |
||||
|
||||
typedef unsigned short __kernel_old_uid_t; |
||||
typedef unsigned short __kernel_old_gid_t; |
||||
|
||||
#ifdef __GNUC__ |
||||
typedef long long __kernel_loff_t; |
||||
#endif |
||||
|
||||
typedef struct { |
||||
#if defined(__KERNEL__) || defined(__USE_ALL) |
||||
int val[2]; |
||||
#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */ |
||||
int __val[2]; |
||||
#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */ |
||||
} __kernel_fsid_t; |
||||
|
||||
#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) |
||||
|
||||
#undef __FD_SET |
||||
#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d)) |
||||
|
||||
#undef __FD_CLR |
||||
#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d)) |
||||
|
||||
#undef __FD_ISSET |
||||
#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) |
||||
|
||||
#undef __FD_ZERO |
||||
#define __FD_ZERO(fdsetp) (memset (fdsetp, 0, sizeof(*(fd_set *)fdsetp))) |
||||
|
||||
#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */ |
||||
|
||||
#endif /* __ASM_NIOS2_POSIX_TYPES_H_ */ |
||||
@ -0,0 +1,26 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_PROCESSOR_H_ |
||||
#define __ASM_NIOS2_PROCESSOR_H_ |
||||
#endif /* __ASM_NIOS2_PROCESSOR_H_ */ |
||||
@ -0,0 +1,28 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_PSR_H_ |
||||
#define __ASM_NIOS2_PSR_H_ |
||||
|
||||
|
||||
#endif /* __ASM_NIOS2_PSR_H_ */ |
||||
@ -0,0 +1,33 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_PTRACE_H_ |
||||
#define __ASM_NIOS2_PTRACE_H_ |
||||
|
||||
struct pt_regs { |
||||
unsigned reg[32]; |
||||
unsigned status; |
||||
}; |
||||
|
||||
|
||||
#endif /* __ASM_NIOS2_PTRACE_H_ */ |
||||
@ -0,0 +1,31 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
#ifndef __ASM_STATUS_LED_H__ |
||||
#define __ASM_STATUS_LED_H__ |
||||
|
||||
typedef unsigned led_id_t; |
||||
extern void __led_init (led_id_t mask, int state); |
||||
extern void __led_set (led_id_t mask, int state); |
||||
inline void __led_toggle (led_id_t mask); |
||||
|
||||
#endif /* __ASM_STATUS_LED_H__ */ |
||||
@ -0,0 +1,47 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
#ifndef __ASM_NIOS2_STRING_H_ |
||||
#define __ASM_NIOS2_STRING_H_ |
||||
|
||||
#undef __HAVE_ARCH_STRRCHR |
||||
extern char * strrchr(const char * s, int c); |
||||
|
||||
#undef __HAVE_ARCH_STRCHR |
||||
extern char * strchr(const char * s, int c); |
||||
|
||||
#undef __HAVE_ARCH_MEMCPY |
||||
extern void * memcpy(void *, const void *, __kernel_size_t); |
||||
|
||||
#undef __HAVE_ARCH_MEMMOVE |
||||
extern void * memmove(void *, const void *, __kernel_size_t); |
||||
|
||||
#undef __HAVE_ARCH_MEMCHR |
||||
extern void * memchr(const void *, int, __kernel_size_t); |
||||
|
||||
#undef __HAVE_ARCH_MEMSET |
||||
extern void * memset(void *, int, __kernel_size_t); |
||||
|
||||
#undef __HAVE_ARCH_MEMZERO |
||||
extern void memzero(void *ptr, __kernel_size_t n); |
||||
|
||||
#endif /* __ASM_NIOS2_STRING_H_ */ |
||||
@ -0,0 +1,26 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
#ifndef __ASM_NIOS2_SYSTEM_H_ |
||||
#define __ASM_NIOS2_SYSTEM_H_ |
||||
|
||||
#endif /* __ASM_NIOS2_SYSTEM_H */ |
||||
@ -0,0 +1,57 @@ |
||||
#ifndef __ASM_NIOS2_TYPES_H_ |
||||
#define __ASM_NIOS2_TYPES_H_ |
||||
|
||||
/*
|
||||
* This file is never included by application software unless |
||||
* explicitly requested (e.g., via linux/types.h) in which case the |
||||
* application is Linux specific so (user-) name space pollution is |
||||
* not a major issue. However, for interoperability, libraries still |
||||
* need to be careful to avoid a name clashes. |
||||
*/ |
||||
|
||||
typedef unsigned short umode_t; |
||||
|
||||
/*
|
||||
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the |
||||
* header files exported to user space |
||||
*/ |
||||
|
||||
typedef __signed__ char __s8; |
||||
typedef unsigned char __u8; |
||||
|
||||
typedef __signed__ short __s16; |
||||
typedef unsigned short __u16; |
||||
|
||||
typedef __signed__ int __s32; |
||||
typedef unsigned int __u32; |
||||
|
||||
#if defined(__GNUC__) && !defined(__STRICT_ANSI__) |
||||
typedef __signed__ long long __s64; |
||||
typedef unsigned long long __u64; |
||||
#endif |
||||
|
||||
/*
|
||||
* These aren't exported outside the kernel to avoid name space clashes |
||||
*/ |
||||
#ifdef __KERNEL__ |
||||
|
||||
typedef signed char s8; |
||||
typedef unsigned char u8; |
||||
|
||||
typedef signed short s16; |
||||
typedef unsigned short u16; |
||||
|
||||
typedef signed int s32; |
||||
typedef unsigned int u32; |
||||
|
||||
typedef signed long long s64; |
||||
typedef unsigned long long u64; |
||||
|
||||
#define BITS_PER_LONG 32 |
||||
|
||||
/* Dma addresses are 32-bits wide. */ |
||||
|
||||
typedef u32 dma_addr_t; |
||||
#endif /* __KERNEL__ */ |
||||
|
||||
#endif /* __ASM_NIOS2_TYPES_H */ |
||||
@ -0,0 +1,41 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __ASM_NIOS2_U_BOOT_H_ |
||||
#define __ASM_NIOS2_U_BOOT_H_ |
||||
|
||||
typedef struct bd_info { |
||||
unsigned long bi_memstart; /* start of DRAM memory */ |
||||
unsigned long bi_memsize; /* size of DRAM memory in bytes */ |
||||
unsigned long bi_flashstart; /* start of FLASH memory */ |
||||
unsigned long bi_flashsize; /* size of FLASH memory */ |
||||
unsigned long bi_flashoffset; /* reserved area for startup monitor */ |
||||
unsigned long bi_sramstart; /* start of SRAM memory */ |
||||
unsigned long bi_sramsize; /* size of SRAM memory */ |
||||
unsigned long bi_ip_addr; /* IP Address */ |
||||
unsigned char bi_enetaddr[6]; /* Ethernet adress */ |
||||
unsigned long bi_baudrate; /* Console Baudrate */ |
||||
} bd_t; |
||||
|
||||
|
||||
#endif /* __ASM_NIOS2_U_BOOT_H_ */ |
||||
@ -0,0 +1,155 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __CONFIG_H |
||||
#define __CONFIG_H |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* BOARD/CPU |
||||
*----------------------------------------------------------------------*/ |
||||
#define CONFIG_PCI5441 1 /* PCI-5441 board */ |
||||
#define CONFIG_SYS_CLK_FREQ 50000000 /* 50 MHz core clk */ |
||||
|
||||
#define CFG_RESET_ADDR 0x00000000 /* Hard-reset address */ |
||||
#define CFG_EXCEPTION_ADDR 0x01000020 /* Exception entry point*/ |
||||
#define CFG_NIOS_SYSID_BASE 0x00920828 /* System id address */ |
||||
#define CONFIG_BOARD_EARLY_INIT_F 1 /* enable early board-spec. init*/ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* CACHE -- the following will support II/s and II/f. The II/s does not |
||||
* have dcache, so the cache instructions will behave as NOPs. |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_ICACHE_SIZE 4096 /* 4 KByte total */ |
||||
#define CFG_ICACHELINE_SIZE 32 /* 32 bytes/line */ |
||||
#define CFG_DCACHE_SIZE 2048 /* 2 KByte (II/f) */ |
||||
#define CFG_DCACHELINE_SIZE 4 /* 4 bytes/line (II/f) */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* MEMORY BASE ADDRESSES |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_FLASH_BASE 0x00000000 /* FLASH base addr */ |
||||
#define CFG_FLASH_SIZE 0x00800000 /* 8 MByte */ |
||||
#define CFG_SDRAM_BASE 0x01000000 /* SDRAM base addr */ |
||||
#define CFG_SDRAM_SIZE 0x01000000 /* 16 MByte */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* MEMORY ORGANIZATION |
||||
* -Monitor at top. |
||||
* -The heap is placed below the monitor. |
||||
* -Global data is placed below the heap. |
||||
* -The stack is placed below global data (&grows down). |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_MONITOR_LEN (128 * 1024) /* Reserve 128k */ |
||||
#define CFG_GBL_DATA_SIZE 128 /* Global data size rsvd*/ |
||||
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024) |
||||
|
||||
#define CFG_MONITOR_BASE TEXT_BASE |
||||
#define CFG_MALLOC_BASE (CFG_MONITOR_BASE - CFG_MALLOC_LEN) |
||||
#define CFG_GBL_DATA_OFFSET (CFG_MALLOC_BASE - CFG_GBL_DATA_SIZE) |
||||
#define CFG_INIT_SP CFG_GBL_DATA_OFFSET |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* FLASH (AM29LV065D) |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_MAX_FLASH_SECT 128 /* Max # sects per bank */ |
||||
#define CFG_MAX_FLASH_BANKS 1 /* Max # of flash banks */ |
||||
#define CFG_FLASH_ERASE_TOUT 8000 /* Erase timeout (msec) */ |
||||
#define CFG_FLASH_WRITE_TOUT 100 /* Write timeout (msec) */ |
||||
#define CFG_FLASH_WORD_SIZE unsigned char /* flash word size */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* ENVIRONMENT -- Put environment in sector CFG_MONITOR_LEN above |
||||
* CFG_RESET_ADDR, since we assume the monitor is stored at the |
||||
* reset address, no? This will keep the environment in user region |
||||
* of flash. NOTE: the monitor length must be multiple of sector size |
||||
* (which is common practice). |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_ENV_IS_IN_FLASH 1 /* Environment in flash */ |
||||
#define CFG_ENV_SIZE (64 * 1024) /* 64 KByte (1 sector) */ |
||||
#define CONFIG_ENV_OVERWRITE /* Serial change Ok */ |
||||
#define CFG_ENV_ADDR (CFG_RESET_ADDR + CFG_MONITOR_LEN) |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* CONSOLE |
||||
*----------------------------------------------------------------------*/ |
||||
#if defined(CONFIG_CONSOLE_JTAG) |
||||
#define CFG_NIOS_CONSOLE 0x00920820 /* JTAG UART base addr */ |
||||
#else |
||||
#define CFG_NIOS_CONSOLE 0x009208a0 /* UART base addr */ |
||||
#endif |
||||
|
||||
#define CFG_NIOS_FIXEDBAUD 1 /* Baudrate is fixed */ |
||||
#define CONFIG_BAUDRATE 115200 /* Initial baudrate */ |
||||
#define CFG_BAUDRATE_TABLE {115200} /* It's fixed ;-) */ |
||||
|
||||
#define CFG_CONSOLE_INFO_QUIET 1 /* Suppress console info*/ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* DEBUG |
||||
*----------------------------------------------------------------------*/ |
||||
#undef CONFIG_ROM_STUBS /* Stubs not in ROM */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* TIMEBASE -- |
||||
* |
||||
* The high res timer defaults to 1 msec. Since it includes the period |
||||
* registers, we can slow it down to 10 msec using TMRCNT. If the default |
||||
* period is acceptable, TMRCNT can be left undefined. |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_NIOS_TMRBASE 0x00920860 /* Tick timer base addr */ |
||||
#define CFG_NIOS_TMRIRQ 3 /* Timer IRQ num */ |
||||
#define CFG_NIOS_TMRMS 10 /* 10 msec per tick */ |
||||
#define CFG_NIOS_TMRCNT (CFG_NIOS_TMRMS * (CONFIG_SYS_CLK_FREQ/1000)) |
||||
#define CFG_HZ (CONFIG_SYS_CLK_FREQ/(CFG_NIOS_TMRCNT + 1)) |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* COMMANDS |
||||
*----------------------------------------------------------------------*/ |
||||
#define CONFIG_COMMANDS (CFG_CMD_BDI | \ |
||||
CFG_CMD_ECHO | \
|
||||
CFG_CMD_ENV | \
|
||||
CFG_CMD_FLASH | \
|
||||
CFG_CMD_IMI | \
|
||||
CFG_CMD_IRQ | \
|
||||
CFG_CMD_LOADS | \
|
||||
CFG_CMD_LOADB | \
|
||||
CFG_CMD_MEMORY | \
|
||||
CFG_CMD_MISC | \
|
||||
CFG_CMD_RUN | \
|
||||
CFG_CMD_SAVES ) |
||||
#include <cmd_confdefs.h> |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* MISC |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_LONGHELP /* Provide extended help*/ |
||||
#define CFG_PROMPT "==> " /* Command prompt */ |
||||
#define CFG_CBSIZE 256 /* Console I/O buf size */ |
||||
#define CFG_MAXARGS 16 /* Max command args */ |
||||
#define CFG_BARGSIZE CFG_CBSIZE /* Boot arg buf size */ |
||||
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print buf size */ |
||||
#define CFG_LOAD_ADDR CFG_SDRAM_BASE /* Default load address */ |
||||
#define CFG_MEMTEST_START CFG_SDRAM_BASE /* Start addr for test */ |
||||
#define CFG_MEMTEST_END CFG_INIT_SP - 0x00020000 |
||||
|
||||
#endif /* __CONFIG_H */ |
||||
@ -0,0 +1,188 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __CONFIG_H |
||||
#define __CONFIG_H |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* BOARD/CPU |
||||
*----------------------------------------------------------------------*/ |
||||
#define CONFIG_PK1C20 1 /* PK1C20 board */ |
||||
#define CONFIG_SYS_CLK_FREQ 50000000 /* 50 MHz core clk */ |
||||
|
||||
#define CFG_RESET_ADDR 0x00000000 /* Hard-reset address */ |
||||
#define CFG_EXCEPTION_ADDR 0x01000020 /* Exception entry point*/ |
||||
#define CFG_NIOS_SYSID_BASE 0x00920828 /* System id address */ |
||||
#define CONFIG_BOARD_EARLY_INIT_F 1 /* enable early board-spec. init*/ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* CACHE -- the following will support II/s and II/f. The II/s does not |
||||
* have dcache, so the cache instructions will behave as NOPs. |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_ICACHE_SIZE 4096 /* 4 KByte total */ |
||||
#define CFG_ICACHELINE_SIZE 32 /* 32 bytes/line */ |
||||
#define CFG_DCACHE_SIZE 2048 /* 2 KByte (II/f) */ |
||||
#define CFG_DCACHELINE_SIZE 4 /* 4 bytes/line (II/f) */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* MEMORY BASE ADDRESSES |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_FLASH_BASE 0x00000000 /* FLASH base addr */ |
||||
#define CFG_FLASH_SIZE 0x00800000 /* 8 MByte */ |
||||
#define CFG_SDRAM_BASE 0x01000000 /* SDRAM base addr */ |
||||
#define CFG_SDRAM_SIZE 0x01000000 /* 16 MByte */ |
||||
#define CFG_SRAM_BASE 0x00800000 /* SRAM base addr */ |
||||
#define CFG_SRAM_SIZE 0x00200000 /* 2 MByte */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* MEMORY ORGANIZATION |
||||
* -Monitor at top. |
||||
* -The heap is placed below the monitor. |
||||
* -Global data is placed below the heap. |
||||
* -The stack is placed below global data (&grows down). |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_MONITOR_LEN (128 * 1024) /* Reserve 128k */ |
||||
#define CFG_GBL_DATA_SIZE 128 /* Global data size rsvd*/ |
||||
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024) |
||||
|
||||
#define CFG_MONITOR_BASE TEXT_BASE |
||||
#define CFG_MALLOC_BASE (CFG_MONITOR_BASE - CFG_MALLOC_LEN) |
||||
#define CFG_GBL_DATA_OFFSET (CFG_MALLOC_BASE - CFG_GBL_DATA_SIZE) |
||||
#define CFG_INIT_SP CFG_GBL_DATA_OFFSET |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* FLASH (AM29LV065D) |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_MAX_FLASH_SECT 128 /* Max # sects per bank */ |
||||
#define CFG_MAX_FLASH_BANKS 1 /* Max # of flash banks */ |
||||
#define CFG_FLASH_ERASE_TOUT 8000 /* Erase timeout (msec) */ |
||||
#define CFG_FLASH_WRITE_TOUT 100 /* Write timeout (msec) */ |
||||
#define CFG_FLASH_WORD_SIZE unsigned char /* flash word size */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* ENVIRONMENT -- Put environment in sector CFG_MONITOR_LEN above |
||||
* CFG_RESET_ADDR, since we assume the monitor is stored at the |
||||
* reset address, no? This will keep the environment in user region |
||||
* of flash. NOTE: the monitor length must be multiple of sector size |
||||
* (which is common practice). |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_ENV_IS_IN_FLASH 1 /* Environment in flash */ |
||||
#define CFG_ENV_SIZE (64 * 1024) /* 64 KByte (1 sector) */ |
||||
#define CONFIG_ENV_OVERWRITE /* Serial change Ok */ |
||||
#define CFG_ENV_ADDR (CFG_RESET_ADDR + CFG_MONITOR_LEN) |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* CONSOLE |
||||
*----------------------------------------------------------------------*/ |
||||
#if defined(CONFIG_CONSOLE_JTAG) |
||||
#define CFG_NIOS_CONSOLE 0x00920820 /* JTAG UART base addr */ |
||||
#else |
||||
#define CFG_NIOS_CONSOLE 0x009208a0 /* UART base addr */ |
||||
#endif |
||||
|
||||
#define CFG_NIOS_FIXEDBAUD 1 /* Baudrate is fixed */ |
||||
#define CONFIG_BAUDRATE 115200 /* Initial baudrate */ |
||||
#define CFG_BAUDRATE_TABLE {115200} /* It's fixed ;-) */ |
||||
|
||||
#define CFG_CONSOLE_INFO_QUIET 1 /* Suppress console info*/ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* DEBUG |
||||
*----------------------------------------------------------------------*/ |
||||
#undef CONFIG_ROM_STUBS /* Stubs not in ROM */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* TIMEBASE -- |
||||
* |
||||
* The high res timer defaults to 1 msec. Since it includes the period |
||||
* registers, we can slow it down to 10 msec using TMRCNT. If the default |
||||
* period is acceptable, TMRCNT can be left undefined. |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_NIOS_TMRBASE 0x00920860 /* Tick timer base addr */ |
||||
#define CFG_NIOS_TMRIRQ 3 /* Timer IRQ num */ |
||||
#define CFG_NIOS_TMRMS 10 /* 10 msec per tick */ |
||||
#define CFG_NIOS_TMRCNT (CFG_NIOS_TMRMS * (CONFIG_SYS_CLK_FREQ/1000)) |
||||
#define CFG_HZ (CONFIG_SYS_CLK_FREQ/(CFG_NIOS_TMRCNT + 1)) |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* STATUS LED -- Provides a simple blinking led. For Nios2 each board |
||||
* must implement its own led routines -- leds are, after all, |
||||
* board-specific, no? |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_LEDPIO_ADDR 0x00920840 /* LED PIO base addr */ |
||||
#define CONFIG_STATUS_LED /* Enable status driver */ |
||||
|
||||
#define STATUS_LED_BIT 1 /* Bit-0 on PIO */ |
||||
#define STATUS_LED_STATE 1 /* Blinking */ |
||||
#define STATUS_LED_PERIOD (500/CFG_NIOS_TMRMS) /* Every 500 msec */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* ETHERNET -- The header file for the SMC91111 driver hurts my eyes ... |
||||
* and really doesn't need any additional clutter. So I choose the lazy |
||||
* way out to avoid changes there -- define the base address to ensure |
||||
* cache bypass so there's no need to monkey with inx/outx macros. |
||||
*----------------------------------------------------------------------*/ |
||||
#define CONFIG_SMC91111_BASE 0x80910300 /* Base addr (bypass) */ |
||||
#define CONFIG_DRIVER_SMC91111 /* Using SMC91c111 */ |
||||
#undef CONFIG_SMC91111_EXT_PHY /* Internal PHY */ |
||||
#define CONFIG_SMC_USE_32_BIT /* 32-bit interface */ |
||||
|
||||
#define CONFIG_ETHADDR 08:00:3e:26:0a:5b |
||||
#define CONFIG_NETMASK 255.255.255.0 |
||||
#define CONFIG_IPADDR 192.168.2.21 |
||||
#define CONFIG_SERVERIP 192.168.2.16 |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* COMMANDS |
||||
*----------------------------------------------------------------------*/ |
||||
#define CONFIG_COMMANDS (CFG_CMD_BDI | \ |
||||
CFG_CMD_DHCP | \
|
||||
CFG_CMD_ECHO | \
|
||||
CFG_CMD_ENV | \
|
||||
CFG_CMD_FLASH | \
|
||||
CFG_CMD_IMI | \
|
||||
CFG_CMD_IRQ | \
|
||||
CFG_CMD_LOADS | \
|
||||
CFG_CMD_LOADB | \
|
||||
CFG_CMD_MEMORY | \
|
||||
CFG_CMD_MISC | \
|
||||
CFG_CMD_NET | \
|
||||
CFG_CMD_PING | \
|
||||
CFG_CMD_RUN | \
|
||||
CFG_CMD_SAVES ) |
||||
#include <cmd_confdefs.h> |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* MISC |
||||
*----------------------------------------------------------------------*/ |
||||
#define CFG_LONGHELP /* Provide extended help*/ |
||||
#define CFG_PROMPT "==> " /* Command prompt */ |
||||
#define CFG_CBSIZE 256 /* Console I/O buf size */ |
||||
#define CFG_MAXARGS 16 /* Max command args */ |
||||
#define CFG_BARGSIZE CFG_CBSIZE /* Boot arg buf size */ |
||||
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print buf size */ |
||||
#define CFG_LOAD_ADDR CFG_SDRAM_BASE /* Default load address */ |
||||
#define CFG_MEMTEST_START CFG_SDRAM_BASE /* Start addr for test */ |
||||
#define CFG_MEMTEST_END CFG_INIT_SP - 0x00020000 |
||||
|
||||
#endif /* __CONFIG_H */ |
||||
@ -0,0 +1,200 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
/*************************************************************************
|
||||
* Altera Nios2 Standard Peripherals |
||||
************************************************************************/ |
||||
|
||||
#ifndef __NIOS2IO_H__ |
||||
#define __NIOS2IO_H__ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* UART (http://www.altera.com/literature/ds/ds_nios_uart.pdf)
|
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_uart_t { |
||||
unsigned rxdata; /* Rx data reg */ |
||||
unsigned txdata; /* Tx data reg */ |
||||
unsigned status; /* Status reg */ |
||||
unsigned control; /* Control reg */ |
||||
unsigned divisor; /* Baud rate divisor reg */ |
||||
unsigned endofpacket; /* End-of-packet reg */ |
||||
}nios_uart_t; |
||||
|
||||
/* status register */ |
||||
#define NIOS_UART_PE (1 << 0) /* parity error */ |
||||
#define NIOS_UART_FE (1 << 1) /* frame error */ |
||||
#define NIOS_UART_BRK (1 << 2) /* break detect */ |
||||
#define NIOS_UART_ROE (1 << 3) /* rx overrun */ |
||||
#define NIOS_UART_TOE (1 << 4) /* tx overrun */ |
||||
#define NIOS_UART_TMT (1 << 5) /* tx empty */ |
||||
#define NIOS_UART_TRDY (1 << 6) /* tx ready */ |
||||
#define NIOS_UART_RRDY (1 << 7) /* rx ready */ |
||||
#define NIOS_UART_E (1 << 8) /* exception */ |
||||
#define NIOS_UART_DCTS (1 << 10) /* cts change */ |
||||
#define NIOS_UART_CTS (1 << 11) /* cts */ |
||||
#define NIOS_UART_EOP (1 << 12) /* eop detected */ |
||||
|
||||
/* control register */ |
||||
#define NIOS_UART_IPE (1 << 0) /* parity error int ena*/ |
||||
#define NIOS_UART_IFE (1 << 1) /* frame error int ena */ |
||||
#define NIOS_UART_IBRK (1 << 2) /* break detect int ena */ |
||||
#define NIOS_UART_IROE (1 << 3) /* rx overrun int ena */ |
||||
#define NIOS_UART_ITOE (1 << 4) /* tx overrun int ena */ |
||||
#define NIOS_UART_ITMT (1 << 5) /* tx empty int ena */ |
||||
#define NIOS_UART_ITRDY (1 << 6) /* tx ready int ena */ |
||||
#define NIOS_UART_IRRDY (1 << 7) /* rx ready int ena */ |
||||
#define NIOS_UART_IE (1 << 8) /* exception int ena */ |
||||
#define NIOS_UART_TBRK (1 << 9) /* transmit break */ |
||||
#define NIOS_UART_IDCTS (1 << 10) /* cts change int ena */ |
||||
#define NIOS_UART_RTS (1 << 11) /* rts */ |
||||
#define NIOS_UART_IEOP (1 << 12) /* eop detected int ena */ |
||||
|
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* TIMER (http://www.altera.com/literature/ds/ds_nios_timer.pdf)
|
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_timer_t { |
||||
unsigned status; /* Timer status reg */ |
||||
unsigned control; /* Timer control reg */ |
||||
unsigned periodl; /* Timeout period low */ |
||||
unsigned periodh; /* Timeout period high */ |
||||
unsigned snapl; /* Snapshot low */ |
||||
unsigned snaph; /* Snapshot high */ |
||||
}nios_timer_t; |
||||
|
||||
/* status register */ |
||||
#define NIOS_TIMER_TO (1 << 0) /* Timeout */ |
||||
#define NIOS_TIMER_RUN (1 << 1) /* Timer running */ |
||||
|
||||
/* control register */ |
||||
#define NIOS_TIMER_ITO (1 << 0) /* Timeout int ena */ |
||||
#define NIOS_TIMER_CONT (1 << 1) /* Continuous mode */ |
||||
#define NIOS_TIMER_START (1 << 2) /* Start timer */ |
||||
#define NIOS_TIMER_STOP (1 << 3) /* Stop timer */ |
||||
|
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* PIO (http://www.altera.com/literature/ds/ds_nios_pio.pdf)
|
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_pio_t { |
||||
unsigned int data; /* Data value at each PIO in/out */ |
||||
unsigned int direction; /* Data direct. for each PIO bit */ |
||||
unsigned int interruptmask; /* Per-bit IRQ enable/disable */ |
||||
unsigned int edgecapture; /* Per-bit sync. edge detect & hold */ |
||||
}nios_pio_t; |
||||
|
||||
/* direction register */ |
||||
#define NIOS_PIO_OUT (1) /* PIO bit is output */ |
||||
#define NIOS_PIO_IN (0) /* PIO bit is input */ |
||||
|
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* SPI (http://www.altera.com/literature/ds/ds_nios_spi.pdf)
|
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_spi_t { |
||||
unsigned rxdata; /* Rx data reg */ |
||||
unsigned txdata; /* Tx data reg */ |
||||
unsigned status; /* Status reg */ |
||||
unsigned control; /* Control reg */ |
||||
unsigned reserved; /* (master only) */ |
||||
unsigned slaveselect; /* SPI slave select mask (master only) */ |
||||
}nios_spi_t; |
||||
|
||||
/* status register */ |
||||
#define NIOS_SPI_ROE (1 << 3) /* rx overrun */ |
||||
#define NIOS_SPI_TOE (1 << 4) /* tx overrun */ |
||||
#define NIOS_SPI_TMT (1 << 5) /* tx empty */ |
||||
#define NIOS_SPI_TRDY (1 << 6) /* tx ready */ |
||||
#define NIOS_SPI_RRDY (1 << 7) /* rx ready */ |
||||
#define NIOS_SPI_E (1 << 8) /* exception */ |
||||
|
||||
/* control register */ |
||||
#define NIOS_SPI_IROE (1 << 3) /* rx overrun int ena */ |
||||
#define NIOS_SPI_ITOE (1 << 4) /* tx overrun int ena */ |
||||
#define NIOS_SPI_ITRDY (1 << 6) /* tx ready int ena */ |
||||
#define NIOS_SPI_IRRDY (1 << 7) /* rx ready int ena */ |
||||
#define NIOS_SPI_IE (1 << 8) /* exception int ena */ |
||||
#define NIOS_SPI_SSO (1 << 10) /* override SS_n output */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* ASMI |
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_asmi_t { |
||||
unsigned rxdata; /* Rx data reg */ |
||||
unsigned txdata; /* Tx data reg */ |
||||
unsigned status; /* Status reg */ |
||||
unsigned control; /* Control reg */ |
||||
unsigned reserved; |
||||
unsigned slavesel; /* Slave select */ |
||||
unsigned endofpacket; /* End-of-packet reg */ |
||||
}nios_asmi_t; |
||||
|
||||
/* status register */ |
||||
#define NIOS_ASMI_ROE (1 << 3) /* rx overrun */ |
||||
#define NIOS_ASMI_TOE (1 << 4) /* tx overrun */ |
||||
#define NIOS_ASMI_TMT (1 << 5) /* tx empty */ |
||||
#define NIOS_ASMI_TRDY (1 << 6) /* tx ready */ |
||||
#define NIOS_ASMI_RRDY (1 << 7) /* rx ready */ |
||||
#define NIOS_ASMI_E (1 << 8) /* exception */ |
||||
#define NIOS_ASMI_EOP (1 << 9) /* eop detected */ |
||||
|
||||
/* control register */ |
||||
#define NIOS_ASMI_IROE (1 << 3) /* rx overrun int ena */ |
||||
#define NIOS_ASMI_ITOE (1 << 4) /* tx overrun int ena */ |
||||
#define NIOS_ASMI_ITRDY (1 << 6) /* tx ready int ena */ |
||||
#define NIOS_ASMI_IRRDY (1 << 7) /* rx ready int ena */ |
||||
#define NIOS_ASMI_IE (1 << 8) /* exception int ena */ |
||||
#define NIOS_ASMI_IEOP (1 << 9) /* rx eop int ena */ |
||||
#define NIOS_ASMI_SSO (1 << 10) /* slave select enable */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* JTAG UART |
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_jtag_t { |
||||
unsigned data; /* Data register */ |
||||
unsigned control; /* Control register */ |
||||
}nios_jtag_t; |
||||
|
||||
/* data register */ |
||||
#define NIOS_JTAG_RVALID (1<<15) /* Read valid */ |
||||
#define NIOS_JTAG_DATA(d) ((d)&0x0ff) /* Read data */ |
||||
#define NIOS_JTAG_RAVAIL(d) ((d)>>16) /* Read space avail */ |
||||
|
||||
/* control register */ |
||||
#define NIOS_JTAG_RE (1 << 0) /* read intr enable */ |
||||
#define NIOS_JTAG_WE (1 << 1) /* write intr enable */ |
||||
#define NIOS_JTAG_RI (1 << 8) /* read intr pending */ |
||||
#define NIOS_JTAG_WI (1 << 9) /* write intr pending*/ |
||||
#define NIOS_JTAG_AC (1 << 10) /* activity indicator */ |
||||
#define NIOS_JTAG_RRDY (1 << 12) /* read available */ |
||||
#define NIOS_JTAG_WSPACE(d) ((d)>>16) /* Write space avail */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* SYSTEM ID |
||||
*----------------------------------------------------------------------*/ |
||||
typedef volatile struct nios_sysid_t { |
||||
unsigned id; /* The system build id*/ |
||||
unsigned timestamp; /* Timestamp */ |
||||
}nios_sysid_t; |
||||
|
||||
#endif /* __NIOS2IO_H__ */ |
||||
@ -0,0 +1,63 @@ |
||||
/*
|
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#ifndef __NIOS2_H__ |
||||
#define __NIOS2_H__ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* Control registers -- use with wrctl() & rdctl() |
||||
*----------------------------------------------------------------------*/ |
||||
#define CTL_STATUS 0 /* Processor status reg */ |
||||
#define CTL_ESTATUS 1 /* Exception status reg */ |
||||
#define CTL_BSTATUS 2 /* Break status reg */ |
||||
#define CTL_IENABLE 3 /* Interrut enable reg */ |
||||
#define CTL_IPENDING 4 /* Interrut pending reg */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* Access to control regs |
||||
*----------------------------------------------------------------------*/ |
||||
#define _str_(x) #x |
||||
|
||||
#define rdctl(reg)\ |
||||
({unsigned int val;\
|
||||
asm volatile( "rdctl %0, ctl" _str_(reg)\
|
||||
: "=r" (val) ); val;}) |
||||
|
||||
#define wrctl(reg,val)\ |
||||
asm volatile( "wrctl ctl" _str_(reg) ",%0"\
|
||||
: : "r" (val)) |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* Control reg bit masks |
||||
*----------------------------------------------------------------------*/ |
||||
#define STATUS_IE (1<<0) /* Interrupt enable */ |
||||
#define STATUS_U (1<<1) /* User-mode */ |
||||
|
||||
/*------------------------------------------------------------------------
|
||||
* Bit-31 Cache bypass -- only valid for data access. When data cache |
||||
* is not implemented, bit 31 is ignored for compatibility. |
||||
*----------------------------------------------------------------------*/ |
||||
#define CACHE_BYPASS(a) ((a) | 0x80000000) |
||||
#define CACHE_NO_BYPASS(a) ((a) & ~0x80000000) |
||||
|
||||
#endif /* __NIOS2_H__ */ |
||||
@ -0,0 +1,44 @@ |
||||
#
|
||||
# (C) Copyright 2000
|
||||
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
#
|
||||
# See file CREDITS for list of people who contributed to this
|
||||
# project.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation; either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
# MA 02111-1307 USA
|
||||
#
|
||||
|
||||
include $(TOPDIR)/config.mk |
||||
|
||||
LIB = lib$(ARCH).a
|
||||
|
||||
AOBJS = cache.o
|
||||
|
||||
COBJS = board.o divmod.o nios_linux.o mult.o time.o
|
||||
|
||||
OBJS = $(AOBJS) $(COBJS)
|
||||
|
||||
$(LIB): .depend $(OBJS) |
||||
$(AR) crv $@ $(OBJS)
|
||||
|
||||
#########################################################################
|
||||
|
||||
.depend: Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c) |
||||
$(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@
|
||||
|
||||
sinclude .depend |
||||
|
||||
#########################################################################
|
||||
@ -0,0 +1,184 @@ |
||||
/*
|
||||
* (C) Copyright 2003, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* (C) Copyright 2000-2002 |
||||
* Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
#include <devices.h> |
||||
#include <watchdog.h> |
||||
#include <net.h> |
||||
#ifdef CONFIG_STATUS_LED |
||||
#include <status_led.h> |
||||
#endif |
||||
|
||||
|
||||
/*
|
||||
* All attempts to come up with a "common" initialization sequence |
||||
* that works for all boards and architectures failed: some of the |
||||
* requirements are just _too_ different. To get rid of the resulting |
||||
* mess of board dependend #ifdef'ed code we now make the whole |
||||
* initialization sequence configurable to the user. |
||||
* |
||||
* The requirements for any new initalization function is simple: it |
||||
* receives a pointer to the "global data" structure as it's only |
||||
* argument, and returns an integer return code, where 0 means |
||||
* "continue" and != 0 means "fatal error, hang the system". |
||||
*/ |
||||
|
||||
|
||||
extern void malloc_bin_reloc (void); |
||||
typedef int (init_fnc_t) (void); |
||||
|
||||
/*
|
||||
* Begin and End of memory area for malloc(), and current "brk" |
||||
*/ |
||||
static ulong mem_malloc_start = 0; |
||||
static ulong mem_malloc_end = 0; |
||||
static ulong mem_malloc_brk = 0; |
||||
|
||||
/*
|
||||
* The Malloc area is immediately below the monitor copy in RAM |
||||
*/ |
||||
static void mem_malloc_init (void) |
||||
{ |
||||
mem_malloc_start = CFG_MALLOC_BASE; |
||||
mem_malloc_end = mem_malloc_start + CFG_MALLOC_LEN; |
||||
mem_malloc_brk = mem_malloc_start; |
||||
memset ((void *) mem_malloc_start, |
||||
0, |
||||
mem_malloc_end - mem_malloc_start); |
||||
} |
||||
|
||||
void *sbrk (ptrdiff_t increment) |
||||
{ |
||||
ulong old = mem_malloc_brk; |
||||
ulong new = old + increment; |
||||
|
||||
if ((new < mem_malloc_start) || (new > mem_malloc_end)) { |
||||
return (NULL); |
||||
} |
||||
mem_malloc_brk = new; |
||||
return ((void *) old); |
||||
} |
||||
|
||||
|
||||
/************************************************************************
|
||||
* Initialization sequence * |
||||
***********************************************************************/ |
||||
|
||||
init_fnc_t *init_sequence[] = { |
||||
|
||||
#if defined(CONFIG_BOARD_EARLY_INIT_F) |
||||
board_early_init_f, /* Call board-specific init code early.*/ |
||||
#endif |
||||
|
||||
env_init, |
||||
serial_init, |
||||
console_init_f, |
||||
display_options, |
||||
checkcpu, |
||||
checkboard, |
||||
NULL, /* Terminate this list */ |
||||
}; |
||||
|
||||
|
||||
/***********************************************************************/ |
||||
void board_init (void) |
||||
{ |
||||
DECLARE_GLOBAL_DATA_PTR; |
||||
|
||||
bd_t *bd; |
||||
init_fnc_t **init_fnc_ptr; |
||||
char *s, *e; |
||||
int i; |
||||
|
||||
/* Pointer is writable since we allocated a register for it.
|
||||
* Nios treats CFG_GBL_DATA_OFFSET as an address. |
||||
*/ |
||||
gd = (gd_t *)CFG_GBL_DATA_OFFSET; |
||||
/* compiler optimization barrier needed for GCC >= 3.4 */ |
||||
__asm__ __volatile__("": : :"memory"); |
||||
|
||||
memset( gd, 0, CFG_GBL_DATA_SIZE ); |
||||
|
||||
gd->bd = (bd_t *)(gd+1); /* At end of global data */ |
||||
gd->baudrate = CONFIG_BAUDRATE; |
||||
gd->cpu_clk = CONFIG_SYS_CLK_FREQ; |
||||
|
||||
bd = gd->bd; |
||||
bd->bi_memstart = CFG_SDRAM_BASE; |
||||
bd->bi_memsize = CFG_SDRAM_SIZE; |
||||
bd->bi_flashstart = CFG_FLASH_BASE; |
||||
#if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE) |
||||
bd->bi_sramstart= CFG_SRAM_BASE; |
||||
bd->bi_sramsize = CFG_SRAM_SIZE; |
||||
#endif |
||||
bd->bi_baudrate = CONFIG_BAUDRATE; |
||||
|
||||
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { |
||||
WATCHDOG_RESET (); |
||||
if ((*init_fnc_ptr) () != 0) { |
||||
hang (); |
||||
} |
||||
} |
||||
|
||||
WATCHDOG_RESET (); |
||||
bd->bi_flashsize = flash_init(); |
||||
|
||||
WATCHDOG_RESET (); |
||||
mem_malloc_init(); |
||||
malloc_bin_reloc(); |
||||
env_relocate(); |
||||
|
||||
bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); |
||||
s = getenv ("ethaddr"); |
||||
for (i = 0; i < 6; ++i) { |
||||
bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0; |
||||
if (s) s = (*e) ? e + 1 : e; |
||||
} |
||||
|
||||
WATCHDOG_RESET (); |
||||
devices_init(); |
||||
jumptable_init(); |
||||
console_init_r(); |
||||
|
||||
WATCHDOG_RESET (); |
||||
interrupt_init (); |
||||
|
||||
/* main_loop */ |
||||
for (;;) { |
||||
WATCHDOG_RESET (); |
||||
main_loop (); |
||||
} |
||||
} |
||||
|
||||
|
||||
/***********************************************************************/ |
||||
|
||||
void hang (void) |
||||
{ |
||||
disable_interrupts (); |
||||
puts("### ERROR ### Please reset board ###\n"); |
||||
for (;;); |
||||
} |
||||
@ -0,0 +1,74 @@ |
||||
/* |
||||
* (C) Copyright 2004, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com>
|
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <config.h> |
||||
|
||||
.text |
||||
|
||||
.global flush_dcache
|
||||
|
||||
flush_dcache: |
||||
add r5, r5, r4 |
||||
movhi r8, %hi(CFG_DCACHELINE_SIZE) |
||||
ori r8, r8, %lo(CFG_DCACHELINE_SIZE) |
||||
0: flushd 0(r4) |
||||
add r4, r4, r8 |
||||
bltu r4, r5, 0b |
||||
ret |
||||
|
||||
|
||||
.global flush_icache
|
||||
|
||||
flush_icache: |
||||
add r5, r5, r4 |
||||
movhi r8, %hi(CFG_ICACHELINE_SIZE) |
||||
ori r8, r8, %lo(CFG_ICACHELINE_SIZE) |
||||
1: flushi r4 |
||||
add r4, r4, r8 |
||||
bltu r4, r5, 1b |
||||
ret |
||||
|
||||
.global flush_cache
|
||||
|
||||
flush_cache: |
||||
add r5, r5, r4 |
||||
mov r9, r4 |
||||
mov r10, r5 |
||||
|
||||
movhi r8, %hi(CFG_DCACHELINE_SIZE) |
||||
ori r8, r8, %lo(CFG_DCACHELINE_SIZE) |
||||
0: flushd 0(r4) |
||||
add r4, r4, r8 |
||||
bltu r4, r5, 0b |
||||
|
||||
mov r4, r9 |
||||
mov r5, r10 |
||||
movhi r8, %hi(CFG_ICACHELINE_SIZE) |
||||
ori r8, r8, %lo(CFG_ICACHELINE_SIZE) |
||||
1: flushi r4 |
||||
add r4, r4, r8 |
||||
bltu r4, r5, 1b |
||||
|
||||
sync |
||||
flushp |
||||
ret |
||||
@ -0,0 +1,101 @@ |
||||
/*
|
||||
* This file is part of GNU CC. |
||||
* |
||||
* GNU CC is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License as published |
||||
* by the Free Software Foundation; either version 2, or (at your |
||||
* option) any later version. |
||||
* |
||||
* GNU CC is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public |
||||
* License along with GNU CC; see the file COPYING. If not, write |
||||
* to the Free Software Foundation, 59 Temple Place - Suite 330, |
||||
* Boston, MA 02111-1307, USA. |
||||
*/ |
||||
|
||||
|
||||
#include "math.h" |
||||
|
||||
USItype udivmodsi4 (USItype num, USItype den, word_type modwanted) |
||||
{ |
||||
USItype bit = 1; |
||||
USItype res = 0; |
||||
|
||||
while (den < num && bit && !(den & (1L << 31))) { |
||||
den <<= 1; |
||||
bit <<= 1; |
||||
} |
||||
while (bit) { |
||||
if (num >= den) { |
||||
num -= den; |
||||
res |= bit; |
||||
} |
||||
bit >>= 1; |
||||
den >>= 1; |
||||
} |
||||
if (modwanted) |
||||
return num; |
||||
return res; |
||||
} |
||||
|
||||
|
||||
SItype __divsi3 (SItype a, SItype b) |
||||
{ |
||||
word_type neg = 0; |
||||
SItype res; |
||||
|
||||
if (a < 0) { |
||||
a = -a; |
||||
neg = !neg; |
||||
} |
||||
|
||||
if (b < 0) { |
||||
b = -b; |
||||
neg = !neg; |
||||
} |
||||
|
||||
res = udivmodsi4 (a, b, 0); |
||||
|
||||
if (neg) |
||||
res = -res; |
||||
|
||||
return res; |
||||
} |
||||
|
||||
|
||||
SItype __modsi3 (SItype a, SItype b) |
||||
{ |
||||
word_type neg = 0; |
||||
SItype res; |
||||
|
||||
if (a < 0) { |
||||
a = -a; |
||||
neg = 1; |
||||
} |
||||
|
||||
if (b < 0) |
||||
b = -b; |
||||
|
||||
res = udivmodsi4 (a, b, 1); |
||||
|
||||
if (neg) |
||||
res = -res; |
||||
|
||||
return res; |
||||
} |
||||
|
||||
|
||||
SItype __udivsi3 (SItype a, SItype b) |
||||
{ |
||||
return udivmodsi4 (a, b, 0); |
||||
} |
||||
|
||||
|
||||
SItype __umodsi3 (SItype a, SItype b) |
||||
{ |
||||
return udivmodsi4 (a, b, 1); |
||||
} |
||||
@ -0,0 +1,16 @@ |
||||
#define BITS_PER_UNIT 8 |
||||
|
||||
typedef int HItype __attribute__ ((mode (HI))); |
||||
typedef unsigned int UHItype __attribute__ ((mode (HI))); |
||||
|
||||
typedef int SItype __attribute__ ((mode (SI))); |
||||
typedef unsigned int USItype __attribute__ ((mode (SI))); |
||||
|
||||
typedef int word_type __attribute__ ((mode (__word__))); |
||||
|
||||
struct SIstruct {HItype low, high;}; |
||||
|
||||
typedef union { |
||||
struct SIstruct s; |
||||
SItype ll; |
||||
} SIunion; |
||||
@ -0,0 +1,56 @@ |
||||
/*
|
||||
* This file is part of GNU CC. |
||||
* |
||||
* GNU CC is free software; you can redistribute it and/or modify |
||||
* it under the terms of the GNU General Public License as published |
||||
* by the Free Software Foundation; either version 2, or (at your |
||||
* option) any later version. |
||||
* |
||||
* GNU CC is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public |
||||
* License along with GNU CC; see the file COPYING. If not, write |
||||
* to the Free Software Foundation, 59 Temple Place - Suite 330, |
||||
* Boston, MA 02111-1307, USA. |
||||
*/ |
||||
|
||||
|
||||
#include <common.h> |
||||
|
||||
#if !defined(CFG_NIOS_MULT_HW) && !defined(CFG_NIOS_MULT_MSTEP) |
||||
|
||||
#include "math.h" |
||||
|
||||
USItype __mulsi3 (USItype a, USItype b) |
||||
{ |
||||
USItype c = 0; |
||||
|
||||
while (a != 0) { |
||||
if (a & 1) |
||||
c += b; |
||||
a >>= 1; |
||||
b <<= 1; |
||||
} |
||||
|
||||
return c; |
||||
} |
||||
|
||||
|
||||
UHItype __mulhi3 (UHItype a, UHItype b) |
||||
{ |
||||
UHItype c = 0; |
||||
|
||||
while (a != 0) { |
||||
if (a & 1) |
||||
c += b; |
||||
a >>= 1; |
||||
b <<= 1; |
||||
} |
||||
|
||||
return c; |
||||
} |
||||
|
||||
#endif /*!defined(CFG_NIOS_MULT_HW) && !defined(CFG_NIOS_MULT_MSTEP) */ |
||||
@ -0,0 +1,32 @@ |
||||
/*
|
||||
* (C) Copyright 2003, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
#include <command.h> |
||||
|
||||
/* TODO
|
||||
*/ |
||||
void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], |
||||
ulong addr, ulong *len_ptr, int verify) |
||||
{ |
||||
} |
||||
@ -0,0 +1,39 @@ |
||||
/*
|
||||
* (C) Copyright 2003, Psyent Corporation <www.psyent.com> |
||||
* Scott McNutt <smcnutt@psyent.com> |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
#include <watchdog.h> |
||||
|
||||
|
||||
extern void dly_clks( unsigned long ticks ); |
||||
|
||||
void udelay(unsigned long usec) |
||||
{ |
||||
/* The Nios core doesn't have a timebase, so we do our
|
||||
* best for now and call a low-level loop that counts |
||||
* cpu clocks. |
||||
*/ |
||||
unsigned long cnt = (CONFIG_SYS_CLK_FREQ/1000000) * usec; |
||||
WATCHDOG_RESET (); /* trigger watchdog if needed */ |
||||
dly_clks (cnt); |
||||
} |
||||
@ -0,0 +1,26 @@ |
||||
#
|
||||
# (C) Copyright 2004
|
||||
# Psyent Corporation <www.psyent.com>
|
||||
# Scott McNutt <smcnutt@psyent.com>
|
||||
#
|
||||
# See file CREDITS for list of people who contributed to this
|
||||
# project.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of the GNU General Public License as
|
||||
# published by the Free Software Foundation; either version 2 of
|
||||
# the License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
||||
# MA 02111-1307 USA
|
||||
#
|
||||
|
||||
PLATFORM_CPPFLAGS += -DCONFIG_NIOS2 -D__NIOS2__
|
||||
PLATFORM_CPPFLAGS += -ffixed-r15
|
||||
Loading…
Reference in new issue