Add support for the PXA250 based Intrinsyc Cerf board. * Patch by Yasushi Shoji, 27 Jun 2004: fix comment in include/common.hmaster
wdenk
21 years ago
parent
10a36a98c4
commit
fabd46acff
@ -0,0 +1,47 @@ |
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#
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# (C) Copyright 2000
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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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OBJS := cerf250.o flash.o
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SOBJS := memsetup.o
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$(LIB): $(OBJS) $(SOBJS) |
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$(AR) crv $@ $(OBJS) $(SOBJS)
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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 +1,75 @@ |
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/*
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* (C) Copyright 2002 |
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* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net |
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* |
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* (C) Copyright 2002 |
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
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* Marius Groeger <mgroeger@sysgo.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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/* ------------------------------------------------------------------------- */ |
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/*
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* Miscelaneous platform dependent initialisations |
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*/ |
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int board_init (void) |
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{ |
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DECLARE_GLOBAL_DATA_PTR; |
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/* memory and cpu-speed are setup before relocation */ |
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/* so we do _nothing_ here */ |
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/* arch number of cerf PXA Board */ |
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gd->bd->bi_arch_number = 139; |
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/* adress of boot parameters */ |
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gd->bd->bi_boot_params = 0xa0000100; |
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return 0; |
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} |
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int board_late_init(void) |
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{ |
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setenv("stdout", "serial"); |
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setenv("stderr", "serial"); |
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return 0; |
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} |
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int dram_init (void) |
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{ |
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DECLARE_GLOBAL_DATA_PTR; |
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1; |
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gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; |
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gd->bd->bi_dram[1].start = PHYS_SDRAM_2; |
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gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; |
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gd->bd->bi_dram[2].start = PHYS_SDRAM_3; |
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gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE; |
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gd->bd->bi_dram[3].start = PHYS_SDRAM_4; |
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gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE; |
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return 0; |
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} |
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@ -0,0 +1,5 @@ |
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#
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# Cerf board with PXA250 cpu
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#
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#
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TEXT_BASE = 0xa3080000
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@ -0,0 +1,431 @@ |
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/*
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* (C) Copyright 2001 |
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* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net |
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* |
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* (C) Copyright 2001 |
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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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#include <linux/byteorder/swab.h> |
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flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
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/* Board support for 1 or 2 flash devices */ |
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#define FLASH_PORT_WIDTH32 |
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#undef FLASH_PORT_WIDTH16 |
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#ifdef FLASH_PORT_WIDTH16 |
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#define FLASH_PORT_WIDTH ushort |
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#define FLASH_PORT_WIDTHV vu_short |
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#define SWAP(x) __swab16(x) |
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#else |
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#define FLASH_PORT_WIDTH ulong |
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#define FLASH_PORT_WIDTHV vu_long |
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#define SWAP(x) __swab32(x) |
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#endif |
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#define FPW FLASH_PORT_WIDTH |
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#define FPWV FLASH_PORT_WIDTHV |
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#define mb() __asm__ __volatile__ ("" : : : "memory") |
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/*-----------------------------------------------------------------------
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* Functions |
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*/ |
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static ulong flash_get_size (FPW *addr, flash_info_t *info); |
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static int write_data (flash_info_t *info, ulong dest, FPW data); |
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static void flash_get_offsets (ulong base, flash_info_t *info); |
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void inline spin_wheel (void); |
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/*-----------------------------------------------------------------------
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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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ulong size = 0; |
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for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { |
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switch (i) { |
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case 0: |
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flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); |
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flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); |
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break; |
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case 1: |
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flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]); |
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flash_get_offsets (PHYS_FLASH_2, &flash_info[i]); |
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break; |
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default: |
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panic ("configured too many flash banks!\n"); |
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break; |
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} |
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size += flash_info[i].size; |
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} |
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/* Protect monitor and environment sectors
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*/ |
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flash_protect ( FLAG_PROTECT_SET, |
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CFG_FLASH_BASE, |
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CFG_FLASH_BASE + monitor_flash_len - 1, |
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&flash_info[0] ); |
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flash_protect ( FLAG_PROTECT_SET, |
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CFG_ENV_ADDR, |
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CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] ); |
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return size; |
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} |
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/*-----------------------------------------------------------------------
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*/ |
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static void flash_get_offsets (ulong base, flash_info_t *info) |
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{ |
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int i; |
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if (info->flash_id == FLASH_UNKNOWN) { |
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return; |
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} |
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if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { |
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for (i = 0; i < info->sector_count; i++) { |
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info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE); |
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info->protect[i] = 0; |
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} |
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} |
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} |
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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; |
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if (info->flash_id == FLASH_UNKNOWN) { |
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printf ("missing or unknown FLASH type\n"); |
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return; |
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} |
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switch (info->flash_id & FLASH_VENDMASK) { |
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case FLASH_MAN_INTEL: |
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printf ("INTEL "); |
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break; |
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default: |
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printf ("Unknown Vendor "); |
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break; |
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} |
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switch (info->flash_id & FLASH_TYPEMASK) { |
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case FLASH_28F128J3A: |
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printf ("28F128J3A\n"); |
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break; |
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default: |
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printf ("Unknown Chip Type\n"); |
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break; |
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} |
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printf (" Size: %ld MB in %d Sectors\n", |
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info->size >> 20, 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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if ((i % 5) == 0) |
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printf ("\n "); |
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printf (" %08lX%s", |
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info->start[i], |
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info->protect[i] ? " (RO)" : " "); |
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} |
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printf ("\n"); |
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return; |
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} |
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/*
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* The following code cannot be run from FLASH! |
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*/ |
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static ulong flash_get_size (FPW *addr, flash_info_t *info) |
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{ |
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volatile FPW value; |
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/* Write auto select command: read Manufacturer ID */ |
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addr[0x5555] = (FPW) 0x00AA00AA; |
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addr[0x2AAA] = (FPW) 0x00550055; |
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addr[0x5555] = (FPW) 0x00900090; |
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mb (); |
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value = addr[0]; |
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switch (value) { |
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case (FPW) INTEL_MANUFACT: |
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info->flash_id = FLASH_MAN_INTEL; |
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break; |
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default: |
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info->flash_id = FLASH_UNKNOWN; |
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info->sector_count = 0; |
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info->size = 0; |
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addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ |
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return (0); /* no or unknown flash */ |
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} |
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mb (); |
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value = addr[1]; /* device ID */ |
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switch (value) { |
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case (FPW) INTEL_ID_28F128J3A: |
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info->flash_id += FLASH_28F128J3A; |
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info->sector_count = 128; |
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info->size = 0x02000000; |
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break; /* => 16 MB */ |
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default: |
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info->flash_id = FLASH_UNKNOWN; |
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break; |
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} |
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if (info->sector_count > CFG_MAX_FLASH_SECT) { |
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printf ("** ERROR: sector count %d > max (%d) **\n", |
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info->sector_count, CFG_MAX_FLASH_SECT); |
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info->sector_count = CFG_MAX_FLASH_SECT; |
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} |
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addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ |
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return (info->size); |
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} |
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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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int flag, prot, sect; |
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ulong type, start, last; |
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int rcode = 0; |
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if ((s_first < 0) || (s_first > s_last)) { |
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if (info->flash_id == FLASH_UNKNOWN) { |
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printf ("- missing\n"); |
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} else { |
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printf ("- no sectors to erase\n"); |
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} |
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return 1; |
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} |
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type = (info->flash_id & FLASH_VENDMASK); |
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if ((type != FLASH_MAN_INTEL)) { |
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printf ("Can't erase unknown flash type %08lx - aborted\n", |
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info->flash_id); |
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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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start = get_timer (0); |
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last = start; |
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/* Disable interrupts which might cause a timeout here */ |
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flag = disable_interrupts (); |
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/* Start erase on unprotected sectors */ |
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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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FPWV *addr = (FPWV *) (info->start[sect]); |
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FPW status; |
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printf ("Erasing sector %2d ... ", sect); |
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/* arm simple, non interrupt dependent timer */ |
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reset_timer_masked (); |
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*addr = (FPW) 0x00500050; /* clear status register */ |
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*addr = (FPW) 0x00200020; /* erase setup */ |
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*addr = (FPW) 0x00D000D0; /* erase confirm */ |
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while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { |
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if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) { |
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printf ("Timeout\n"); |
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*addr = (FPW) 0x00B000B0; /* suspend erase */ |
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*addr = (FPW) 0x00FF00FF; /* reset to read mode */ |
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rcode = 1; |
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break; |
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} |
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} |
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*addr = 0x00500050; /* clear status register cmd. */ |
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*addr = 0x00FF00FF; /* resest to read mode */ |
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printf (" done\n"); |
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} |
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} |
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return rcode; |
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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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* 4 - Flash not identified |
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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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ulong cp, wp; |
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FPW data; |
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int count, i, l, rc, port_width; |
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if (info->flash_id == FLASH_UNKNOWN) { |
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return 4; |
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} |
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/* get lower word aligned address */ |
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#ifdef FLASH_PORT_WIDTH16 |
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wp = (addr & ~1); |
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port_width = 2; |
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#else |
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wp = (addr & ~3); |
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port_width = 4; |
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#endif |
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/*
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* handle unaligned start bytes |
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*/ |
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if ((l = addr - wp) != 0) { |
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data = 0; |
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for (i = 0, cp = wp; i < l; ++i, ++cp) { |
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data = (data << 8) | (*(uchar *) cp); |
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} |
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for (; i < port_width && cnt > 0; ++i) { |
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data = (data << 8) | *src++; |
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--cnt; |
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++cp; |
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} |
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for (; cnt == 0 && i < port_width; ++i, ++cp) { |
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data = (data << 8) | (*(uchar *) cp); |
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} |
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if ((rc = write_data (info, wp, SWAP (data))) != 0) { |
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return (rc); |
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} |
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wp += port_width; |
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} |
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/*
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* handle word aligned part |
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*/ |
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count = 0; |
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while (cnt >= port_width) { |
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data = 0; |
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for (i = 0; i < port_width; ++i) { |
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data = (data << 8) | *src++; |
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} |
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if ((rc = write_data (info, wp, SWAP (data))) != 0) { |
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return (rc); |
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} |
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wp += port_width; |
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cnt -= port_width; |
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if (count++ > 0x800) { |
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spin_wheel (); |
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count = 0; |
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} |
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} |
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if (cnt == 0) { |
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return (0); |
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} |
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/*
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* handle unaligned tail bytes |
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*/ |
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data = 0; |
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for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) { |
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data = (data << 8) | *src++; |
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--cnt; |
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} |
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for (; i < port_width; ++i, ++cp) { |
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data = (data << 8) | (*(uchar *) cp); |
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} |
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return (write_data (info, wp, SWAP (data))); |
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} |
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/*-----------------------------------------------------------------------
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* Write a word or halfword 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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static int write_data (flash_info_t *info, ulong dest, FPW data) |
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{ |
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FPWV *addr = (FPWV *) dest; |
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ulong status; |
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int flag; |
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/* Check if Flash is (sufficiently) erased */ |
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if ((*addr & data) != data) { |
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printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr); |
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return (2); |
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} |
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/* Disable interrupts which might cause a timeout here */ |
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flag = disable_interrupts (); |
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*addr = (FPW) 0x00400040; /* write setup */ |
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*addr = data; |
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/* arm simple, non interrupt dependent timer */ |
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reset_timer_masked (); |
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/* wait while polling the status register */ |
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while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { |
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if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { |
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*addr = (FPW) 0x00FF00FF; /* restore read mode */ |
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return (1); |
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} |
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} |
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*addr = (FPW) 0x00FF00FF; /* restore read mode */ |
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return (0); |
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} |
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void inline spin_wheel (void) |
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{ |
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static int p = 0; |
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static char w[] = "\\/-"; |
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printf ("\010%c", w[p]); |
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(++p == 3) ? (p = 0) : 0; |
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} |
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@ -0,0 +1,411 @@ |
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/* |
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* Most of this taken from Redboot hal_platform_setup.h with cleanup |
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* |
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* NOTE: I haven't clean this up considerably, just enough to get it |
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* running. See hal_platform_setup.h for the source. See |
||||
* board/cradle/memsetup.S for another PXA250 setup that is |
||||
* much cleaner. |
||||
* |
||||
* 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> |
||||
#include <asm/arch/pxa-regs.h> |
||||
|
||||
DRAM_SIZE: .long CFG_DRAM_SIZE |
||||
|
||||
/* wait for coprocessor write complete */ |
||||
.macro CPWAIT reg |
||||
mrc p15,0,\reg,c2,c0,0 |
||||
mov \reg,\reg |
||||
sub pc,pc,#4 |
||||
.endm |
||||
|
||||
|
||||
/* |
||||
* Memory setup |
||||
*/ |
||||
|
||||
.globl memsetup
|
||||
memsetup: |
||||
|
||||
/* Set up GPIO pins first ----------------------------------------- */ |
||||
|
||||
ldr r0, =GPSR0 |
||||
ldr r1, =CFG_GPSR0_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPSR1 |
||||
ldr r1, =CFG_GPSR1_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPSR2 |
||||
ldr r1, =CFG_GPSR2_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPCR0 |
||||
ldr r1, =CFG_GPCR0_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPCR1 |
||||
ldr r1, =CFG_GPCR1_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPCR2 |
||||
ldr r1, =CFG_GPCR2_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPDR0 |
||||
ldr r1, =CFG_GPDR0_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPDR1 |
||||
ldr r1, =CFG_GPDR1_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GPDR2 |
||||
ldr r1, =CFG_GPDR2_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GAFR0_L |
||||
ldr r1, =CFG_GAFR0_L_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GAFR0_U |
||||
ldr r1, =CFG_GAFR0_U_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GAFR1_L |
||||
ldr r1, =CFG_GAFR1_L_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GAFR1_U |
||||
ldr r1, =CFG_GAFR1_U_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GAFR2_L |
||||
ldr r1, =CFG_GAFR2_L_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =GAFR2_U |
||||
ldr r1, =CFG_GAFR2_U_VAL |
||||
str r1, [r0] |
||||
|
||||
ldr r0, =PSSR /* enable GPIO pins */ |
||||
ldr r1, =CFG_PSSR_VAL |
||||
str r1, [r0] |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Enable memory interface */ |
||||
/* */ |
||||
/* The sequence below is based on the recommended init steps */ |
||||
/* detailed in the Intel PXA250 Operating Systems Developers Guide, */ |
||||
/* Chapter 10. */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 1: Wait for at least 200 microsedonds to allow internal */ |
||||
/* clocks to settle. Only necessary after hard reset... */ |
||||
/* FIXME: can be optimized later */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
ldr r3, =OSCR /* reset the OS Timer Count to zero */ |
||||
mov r2, #0 |
||||
str r2, [r3] |
||||
ldr r4, =0x300 /* really 0x2E1 is about 200usec, */ |
||||
/* so 0x300 should be plenty */ |
||||
1: |
||||
ldr r2, [r3] |
||||
cmp r4, r2 |
||||
bgt 1b |
||||
|
||||
mem_init: |
||||
|
||||
ldr r1, =MEMC_BASE /* get memory controller base addr. */ |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 2a: Initialize Asynchronous static memory controller */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* MSC registers: timing, bus width, mem type */ |
||||
|
||||
/* MSC0: nCS(0,1) */ |
||||
ldr r2, =CFG_MSC0_VAL |
||||
str r2, [r1, #MSC0_OFFSET] |
||||
ldr r2, [r1, #MSC0_OFFSET] /* read back to ensure */ |
||||
/* that data latches */ |
||||
/* MSC1: nCS(2,3) */ |
||||
ldr r2, =CFG_MSC1_VAL |
||||
str r2, [r1, #MSC1_OFFSET] |
||||
ldr r2, [r1, #MSC1_OFFSET] |
||||
|
||||
/* MSC2: nCS(4,5) */ |
||||
ldr r2, =CFG_MSC2_VAL |
||||
str r2, [r1, #MSC2_OFFSET] |
||||
ldr r2, [r1, #MSC2_OFFSET] |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 2b: Initialize Card Interface */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* MECR: Memory Expansion Card Register */ |
||||
ldr r2, =CFG_MECR_VAL |
||||
str r2, [r1, #MECR_OFFSET] |
||||
ldr r2, [r1, #MECR_OFFSET] |
||||
|
||||
/* MCMEM0: Card Interface slot 0 timing */ |
||||
ldr r2, =CFG_MCMEM0_VAL |
||||
str r2, [r1, #MCMEM0_OFFSET] |
||||
ldr r2, [r1, #MCMEM0_OFFSET] |
||||
|
||||
/* MCMEM1: Card Interface slot 1 timing */ |
||||
ldr r2, =CFG_MCMEM1_VAL |
||||
str r2, [r1, #MCMEM1_OFFSET] |
||||
ldr r2, [r1, #MCMEM1_OFFSET] |
||||
|
||||
/* MCATT0: Card Interface Attribute Space Timing, slot 0 */ |
||||
ldr r2, =CFG_MCATT0_VAL |
||||
str r2, [r1, #MCATT0_OFFSET] |
||||
ldr r2, [r1, #MCATT0_OFFSET] |
||||
|
||||
/* MCATT1: Card Interface Attribute Space Timing, slot 1 */ |
||||
ldr r2, =CFG_MCATT1_VAL |
||||
str r2, [r1, #MCATT1_OFFSET] |
||||
ldr r2, [r1, #MCATT1_OFFSET] |
||||
|
||||
/* MCIO0: Card Interface I/O Space Timing, slot 0 */ |
||||
ldr r2, =CFG_MCIO0_VAL |
||||
str r2, [r1, #MCIO0_OFFSET] |
||||
ldr r2, [r1, #MCIO0_OFFSET] |
||||
|
||||
/* MCIO1: Card Interface I/O Space Timing, slot 1 */ |
||||
ldr r2, =CFG_MCIO1_VAL |
||||
str r2, [r1, #MCIO1_OFFSET] |
||||
ldr r2, [r1, #MCIO1_OFFSET] |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 2c: Write FLYCNFG FIXME: what's that??? */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 2d: Initialize Timing for Sync Memory (SDCLK0) */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* Before accessing MDREFR we need a valid DRI field, so we set */ |
||||
/* this to power on defaults + DRI field, set SDRAM clocks free running */ |
||||
|
||||
ldr r3, =CFG_MDREFR_VAL |
||||
ldr r2, =0xFFF |
||||
and r3, r3, r2 |
||||
|
||||
ldr r0, [r1, #MDREFR_OFFSET] |
||||
bic r0, r0, r2 |
||||
bic r0, r0, #(MDREFR_K0FREE|MDREFR_K1FREE|MDREFR_K2FREE) |
||||
orr r0, r0, r3 |
||||
|
||||
str r0, [r1, #MDREFR_OFFSET] /* write back MDREFR */ |
||||
|
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 3: Initialize Synchronous Static Memory (Flash/Peripherals) */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* Initialize SXCNFG register. Assert the enable bits */ |
||||
|
||||
/* Write SXMRS to cause an MRS command to all enabled banks of */ |
||||
/* synchronous static memory. Note that SXLCR need not be written */ |
||||
/* at this time. */ |
||||
|
||||
/* FIXME: we use async mode for now */ |
||||
|
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Step 4: Initialize SDRAM */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* set MDREFR according to user define with exception of a few bits */ |
||||
|
||||
ldr r4, =CFG_MDREFR_VAL |
||||
ldr r2, =(MDREFR_K0RUN|MDREFR_K0DB2|MDREFR_K1RUN|MDREFR_K1DB2|\ |
||||
MDREFR_K2RUN |MDREFR_K2DB2) |
||||
and r4, r4, r2 |
||||
bic r0, r0, r2 |
||||
orr r0, r0, r4 |
||||
|
||||
str r0, [r1, #MDREFR_OFFSET] /* write back MDREFR */ |
||||
ldr r0, [r1, #MDREFR_OFFSET] |
||||
|
||||
/* Step 4b: de-assert MDREFR:SLFRSH. */ |
||||
|
||||
bic r0, r0, #(MDREFR_SLFRSH) |
||||
str r0, [r1, #MDREFR_OFFSET] /* write back MDREFR */ |
||||
ldr r0, [r1, #MDREFR_OFFSET] |
||||
|
||||
|
||||
/* Step 4c: assert MDREFR:E1PIN and E0PIO as desired, set KXFREE */ |
||||
|
||||
ldr r4, =CFG_MDREFR_VAL |
||||
ldr r2, =(MDREFR_E0PIN|MDREFR_E1PIN|MDREFR_K0FREE| \ |
||||
MDREFR_K1FREE | MDREFR_K2FREE) |
||||
and r4, r4, r2 |
||||
orr r0, r0, r4 |
||||
str r0, [r1, #MDREFR_OFFSET] /* write back MDREFR */ |
||||
ldr r0, [r1, #MDREFR_OFFSET] |
||||
|
||||
|
||||
/* Step 4d: write MDCNFG with MDCNFG:DEx deasserted (set to 0), to */ |
||||
/* configure but not enable each SDRAM partition pair. */ |
||||
|
||||
ldr r4, =CFG_MDCNFG_VAL |
||||
bic r4, r4, #(MDCNFG_DE0|MDCNFG_DE1) |
||||
bic r4, r4, #(MDCNFG_DE2|MDCNFG_DE3) |
||||
str r4, [r1, #MDCNFG_OFFSET] /* write back MDCNFG */ |
||||
ldr r4, [r1, #MDCNFG_OFFSET] |
||||
|
||||
|
||||
/* Step 4e: Wait for the clock to the SDRAMs to stabilize, */ |
||||
/* 100..200 µsec. */ |
||||
|
||||
ldr r3, =OSCR /* reset the OS Timer Count to zero */ |
||||
mov r2, #0 |
||||
str r2, [r3] |
||||
ldr r4, =0x300 /* really 0x2E1 is about 200usec, */ |
||||
/* so 0x300 should be plenty */ |
||||
1: |
||||
ldr r2, [r3] |
||||
cmp r4, r2 |
||||
bgt 1b |
||||
|
||||
|
||||
/* Step 4f: Trigger a number (usually 8) refresh cycles by */ |
||||
/* attempting non-burst read or write accesses to disabled */ |
||||
/* SDRAM, as commonly specified in the power up sequence */ |
||||
/* documented in SDRAM data sheets. The address(es) used */ |
||||
/* for this purpose must not be cacheable. */ |
||||
|
||||
ldr r3, =CFG_DRAM_BASE |
||||
.rept 8
|
||||
str r2, [r3] |
||||
.endr |
||||
|
||||
/* Step 4g: Write MDCNFG with enable bits asserted */ |
||||
/* (MDCNFG:DEx set to 1). */ |
||||
|
||||
ldr r3, [r1, #MDCNFG_OFFSET] |
||||
orr r3, r3, #(MDCNFG_DE0|MDCNFG_DE1) |
||||
str r3, [r1, #MDCNFG_OFFSET] |
||||
|
||||
/* Step 4h: Write MDMRS. */ |
||||
|
||||
ldr r2, =CFG_MDMRS_VAL |
||||
str r2, [r1, #MDMRS_OFFSET] |
||||
|
||||
|
||||
/* We are finished with Intel's memory controller initialisation */ |
||||
|
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Disable (mask) all interrupts at interrupt controller */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
initirqs: |
||||
|
||||
mov r1, #0 /* clear int. level register (IRQ, not FIQ) */ |
||||
ldr r2, =ICLR |
||||
str r1, [r2] |
||||
|
||||
ldr r2, =ICMR /* mask all interrupts at the controller */ |
||||
str r1, [r2] |
||||
|
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* Clock initialisation */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
initclks: |
||||
|
||||
/* Disable the peripheral clocks, and set the core clock frequency */ |
||||
|
||||
/* Turn Off ALL on-chip peripheral clocks for re-configuration */ |
||||
/* Note: See label 'ENABLECLKS' for the re-enabling */ |
||||
ldr r1, =CKEN |
||||
mov r2, #0 |
||||
str r2, [r1] |
||||
|
||||
|
||||
/* default value in case no valid rotary switch setting is found */ |
||||
ldr r2, =(CCCR_L27|CCCR_M2|CCCR_N10) /* DEFAULT: {200/200/100} */ |
||||
|
||||
/* ... and write the core clock config register */ |
||||
ldr r1, =CCCR |
||||
str r2, [r1] |
||||
|
||||
#ifdef RTC |
||||
/* enable the 32Khz oscillator for RTC and PowerManager */ |
||||
|
||||
ldr r1, =OSCC |
||||
mov r2, #OSCC_OON |
||||
str r2, [r1] |
||||
|
||||
/* NOTE: spin here until OSCC.OOK get set, meaning the PLL */ |
||||
/* has settled. */ |
||||
60: |
||||
ldr r2, [r1] |
||||
ands r2, r2, #1 |
||||
beq 60b |
||||
#endif |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
/* Save SDRAM size */ |
||||
ldr r1, =DRAM_SIZE |
||||
str r8, [r1] |
||||
|
||||
/* Interrupt init: Mask all interrupts */ |
||||
ldr r0, =ICMR /* enable no sources */ |
||||
mov r1, #0 |
||||
str r1, [r0] |
||||
|
||||
/* FIXME */ |
||||
|
||||
#define NODEBUG |
||||
#ifdef NODEBUG |
||||
/*Disable software and data breakpoints */ |
||||
mov r0,#0 |
||||
mcr p15,0,r0,c14,c8,0 /* ibcr0 */ |
||||
mcr p15,0,r0,c14,c9,0 /* ibcr1 */ |
||||
mcr p15,0,r0,c14,c4,0 /* dbcon */ |
||||
|
||||
/*Enable all debug functionality */ |
||||
mov r0,#0x80000000 |
||||
mcr p14,0,r0,c10,c0,0 /* dcsr */ |
||||
|
||||
#endif |
||||
|
||||
/* ---------------------------------------------------------------- */ |
||||
/* End memsetup */ |
||||
/* ---------------------------------------------------------------- */ |
||||
|
||||
endmemsetup: |
||||
|
||||
mov pc, lr |
||||
@ -0,0 +1,55 @@ |
||||
/* |
||||
* (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 |
||||
*/ |
||||
|
||||
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") |
||||
OUTPUT_ARCH(arm) |
||||
ENTRY(_start) |
||||
SECTIONS |
||||
{ |
||||
. = 0x00000000; |
||||
|
||||
. = ALIGN(4); |
||||
.text : |
||||
{ |
||||
cpu/pxa/start.o (.text) |
||||
*(.text) |
||||
} |
||||
|
||||
. = ALIGN(4); |
||||
.rodata : { *(.rodata) } |
||||
|
||||
. = ALIGN(4); |
||||
.data : { *(.data) } |
||||
|
||||
. = ALIGN(4); |
||||
.got : { *(.got) } |
||||
|
||||
__u_boot_cmd_start = .; |
||||
.u_boot_cmd : { *(.u_boot_cmd) } |
||||
__u_boot_cmd_end = .; |
||||
|
||||
. = ALIGN(4); |
||||
__bss_start = .; |
||||
.bss : { *(.bss) } |
||||
_end = .; |
||||
} |
||||
@ -0,0 +1,220 @@ |
||||
/*
|
||||
* (C) Copyright 2002 |
||||
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net |
||||
* |
||||
* (C) Copyright 2002 |
||||
* Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
||||
* Marius Groeger <mgroeger@sysgo.de> |
||||
* |
||||
* Configuation settings for the CERF250 board. |
||||
* |
||||
* 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 |
||||
|
||||
/*
|
||||
* If we are developing, we might want to start armboot from ram |
||||
* so we MUST NOT initialize critical regs like mem-timing ... |
||||
*/ |
||||
#define CONFIG_INIT_CRITICAL |
||||
|
||||
/*
|
||||
* High Level Configuration Options |
||||
* (easy to change) |
||||
*/ |
||||
#define CONFIG_PXA250 1 /* This is an PXA250 CPU */ |
||||
#define CONFIG_CERF250 1 /* on Cerf PXA Board */ |
||||
#define BOARD_LATE_INIT 1 |
||||
#define CONFIG_BAUDRATE 38400 |
||||
|
||||
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */ |
||||
|
||||
/*
|
||||
* Size of malloc() pool |
||||
*/ |
||||
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024) |
||||
#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */ |
||||
|
||||
/*
|
||||
* Hardware drivers |
||||
*/ |
||||
#define CONFIG_DRIVER_SMC91111 |
||||
#define CONFIG_SMC91111_BASE 0x04000300 |
||||
#define CONFIG_SMC_USE_32_BIT |
||||
|
||||
/*
|
||||
* select serial console configuration |
||||
*/ |
||||
#define CONFIG_FFUART 1 /* we use FFUART on CERF PXA */ |
||||
|
||||
/* allow to overwrite serial and ethaddr */ |
||||
#define CONFIG_ENV_OVERWRITE |
||||
#define CONFIG_COMMANDS (CONFIG_CMD_DFL) |
||||
|
||||
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ |
||||
#include <cmd_confdefs.h> |
||||
|
||||
#define CONFIG_BOOTDELAY 3 |
||||
#define CONFIG_ETHADDR 00:D0:CA:F1:3C:D2 |
||||
#define CONFIG_NETMASK 255.255.255.0 |
||||
#define CONFIG_IPADDR 192.168.0.5 |
||||
#define CONFIG_SERVERIP 192.168.0.2 |
||||
#define CONFIG_BOOTCOMMAND "bootm 0xC0000" |
||||
#define CONFIG_BOOTARGS "root=/dev/mtdblock3 rootfstype=jffs2 console=ttyS0,38400" |
||||
#define CONFIG_CMDLINE_TAG |
||||
|
||||
#if (CONFIG_COMMANDS & CFG_CMD_KGDB) |
||||
#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */ |
||||
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */ |
||||
#endif |
||||
|
||||
/*
|
||||
* Miscellaneous configurable options |
||||
*/ |
||||
#define CFG_HUSH_PARSER 1 |
||||
#define CFG_PROMPT_HUSH_PS2 "> " |
||||
|
||||
#define CFG_LONGHELP /* undef to save memory */ |
||||
#ifdef CFG_HUSH_PARSER |
||||
#define CFG_PROMPT "uboot$ " /* Monitor Command Prompt */ |
||||
#else |
||||
#define CFG_PROMPT "=> " /* Monitor Command Prompt */ |
||||
#endif |
||||
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */ |
||||
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) |
||||
/* Print Buffer Size */ |
||||
#define CFG_MAXARGS 16 /* max number of command args */ |
||||
#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ |
||||
#define CFG_DEVICE_NULLDEV 1 |
||||
|
||||
#define CFG_MEMTEST_START 0xa0400000 /* memtest works on */ |
||||
#define CFG_MEMTEST_END 0xa0800000 /* 4 ... 8 MB in DRAM */ |
||||
|
||||
#undef CFG_CLKS_IN_HZ |
||||
|
||||
#define CFG_LOAD_ADDR 0xa2000000 /* default load address */ |
||||
|
||||
#define CFG_HZ 3686400 /* incrementer freq: 3.6864 MHz */ |
||||
#define CFG_CPUSPEED 0x141 /* set core clock to 400/200/100 MHz */ |
||||
|
||||
#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } |
||||
|
||||
|
||||
/*
|
||||
* Stack sizes |
||||
* |
||||
* The stack sizes are set up in start.S using the settings below |
||||
*/ |
||||
#define CONFIG_STACKSIZE (128*1024) /* regular stack */ |
||||
#ifdef CONFIG_USE_IRQ |
||||
#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */ |
||||
#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */ |
||||
#endif |
||||
|
||||
/*
|
||||
* Physical Memory Map |
||||
*/ |
||||
#define CONFIG_NR_DRAM_BANKS 4 /* we have 2 banks of DRAM */ |
||||
#define PHYS_SDRAM_1 0xa0000000 /* SDRAM Bank #1 */ |
||||
#define PHYS_SDRAM_1_SIZE 0x04000000 /* 64 MB */ |
||||
#define PHYS_SDRAM_2 0xa4000000 /* SDRAM Bank #2 */ |
||||
#define PHYS_SDRAM_2_SIZE 0x00000000 /* 0 MB */ |
||||
#define PHYS_SDRAM_3 0xa8000000 /* SDRAM Bank #3 */ |
||||
#define PHYS_SDRAM_3_SIZE 0x00000000 /* 0 MB */ |
||||
#define PHYS_SDRAM_4 0xac000000 /* SDRAM Bank #4 */ |
||||
#define PHYS_SDRAM_4_SIZE 0x00000000 /* 0 MB */ |
||||
|
||||
#define PHYS_FLASH_1 0x00000000 /* Flash Bank #1 */ |
||||
#define PHYS_FLASH_2 0x04000000 /* Flash Bank #2 */ |
||||
#define PHYS_FLASH_SIZE 0x02000000 /* 32 MB */ |
||||
#define PHYS_FLASH_BANK_SIZE 0x02000000 /* 32 MB Banks */ |
||||
#define PHYS_FLASH_SECT_SIZE 0x00040000 /* 256 KB sectors (x2) */ |
||||
|
||||
#define CFG_DRAM_BASE 0xa0000000 |
||||
#define CFG_DRAM_SIZE 0x04000000 |
||||
|
||||
#define CFG_FLASH_BASE PHYS_FLASH_1 |
||||
|
||||
/*
|
||||
* GPIO settings |
||||
*/ |
||||
|
||||
|
||||
#define CFG_GPSR0_VAL 0x00408030 |
||||
#define CFG_GPSR1_VAL 0x00BFA882 |
||||
#define CFG_GPSR2_VAL 0x0001C000 |
||||
#define CFG_GPCR0_VAL 0xC0031100 |
||||
#define CFG_GPCR1_VAL 0xFC400300 |
||||
#define CFG_GPCR2_VAL 0x00003FFF |
||||
#define CFG_GPDR0_VAL 0xC0439330 |
||||
#define CFG_GPDR1_VAL 0xFCFFAB82 |
||||
#define CFG_GPDR2_VAL 0x0001FFFF |
||||
#define CFG_GAFR0_L_VAL 0x80000000 |
||||
#define CFG_GAFR0_U_VAL 0xA5000010 |
||||
#define CFG_GAFR1_L_VAL 0x60008018 |
||||
#define CFG_GAFR1_U_VAL 0xAAA5AAAA |
||||
#define CFG_GAFR2_L_VAL 0xAAA0000A |
||||
#define CFG_GAFR2_U_VAL 0x00000002 |
||||
|
||||
#define CFG_PSSR_VAL 0x20 |
||||
|
||||
/*
|
||||
* Memory settings |
||||
*/ |
||||
#define CFG_MSC0_VAL 0x12447FF0 |
||||
#define CFG_MSC1_VAL 0x12BC5554 |
||||
#define CFG_MSC2_VAL 0x7FF97FF1 |
||||
#define CFG_MDCNFG_VAL 0x00001AC9 |
||||
#define CFG_MDREFR_VAL 0x03CDC017 |
||||
#define CFG_MDMRS_VAL 0x00000000 |
||||
|
||||
/*
|
||||
* PCMCIA and CF Interfaces |
||||
*/ |
||||
#define CFG_MECR_VAL 0x00000000 |
||||
#define CFG_MCMEM0_VAL 0x00010504 |
||||
#define CFG_MCMEM1_VAL 0x00010504 |
||||
#define CFG_MCATT0_VAL 0x00010504 |
||||
#define CFG_MCATT1_VAL 0x00010504 |
||||
#define CFG_MCIO0_VAL 0x00004715 |
||||
#define CFG_MCIO1_VAL 0x00004715 |
||||
|
||||
#define _LED 0x08000010 /*check this */ |
||||
#define LED_BLANK 0x08000040 |
||||
#define LED_GPIO 0x10 |
||||
|
||||
/*
|
||||
* FLASH and environment organization |
||||
*/ |
||||
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ |
||||
#define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */ |
||||
|
||||
/* timeout values are in ticks */ |
||||
#define CFG_FLASH_ERASE_TOUT (25*CFG_HZ) /* Timeout for Flash Erase */ |
||||
#define CFG_FLASH_WRITE_TOUT (25*CFG_HZ) /* Timeout for Flash Write */ |
||||
|
||||
#define CFG_MONITOR_LEN 0x40000 /* 256 KiB */ |
||||
#define CFG_ENV_IS_IN_FLASH 1 |
||||
#define CFG_ENV_ADDR (PHYS_FLASH_1 + CFG_MONITOR_LEN) |
||||
#define CFG_ENV_SIZE 0x40000 /* Total Size of Environment Sector */ |
||||
|
||||
|
||||
#endif /* __CONFIG_H */ |
||||
Loading…
Reference in new issue