upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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784 lines
22 KiB
784 lines
22 KiB
/*
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* (C) Copyright 2006
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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 <mpc5xxx.h>
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#include <asm/processor.h>
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#if defined(CONFIG_CAM5200) && defined(CONFIG_CAM5200_NIOSFLASH)
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#if 0
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#define DEBUGF(x...) printf(x)
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#else
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#define DEBUGF(x...)
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#endif
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#define swap16(x) __swab16(x)
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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/*
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* CAM5200 is a TQM5200B based board. Additionally it also features
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* a NIOS cpu. The NIOS CPU peripherals are accessible through MPC5xxx
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* Local Bus on CS5. This includes 32 bit wide RAM and SRAM as well as
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* 16 bit wide flash device. Big Endian order on a 32 bit CS5 makes
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* access to flash chip slightly more complicated as additional byte
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* swapping is necessary within each 16 bit wide flash 'word'.
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*
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* This driver's task is to handle both flash devices: 32 bit TQM5200B
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* flash chip and 16 bit NIOS cpu flash chip. In the below
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* flash_addr_table table we use least significant address bit to mark
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* 16 bit flash bank and two sets of routines *_32 and *_16 to handle
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* specifics of both flashes.
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*/
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static unsigned long flash_addr_table[][CONFIG_SYS_MAX_FLASH_BANKS] = {
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{CONFIG_SYS_BOOTCS_START, CONFIG_SYS_CS5_START | 1}
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};
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/*-----------------------------------------------------------------------
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* Functions
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*/
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static int write_word(flash_info_t * info, ulong dest, ulong data);
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#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
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static int write_word_32(flash_info_t * info, ulong dest, ulong data);
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static int write_word_16(flash_info_t * info, ulong dest, ulong data);
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static int flash_erase_32(flash_info_t * info, int s_first, int s_last);
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static int flash_erase_16(flash_info_t * info, int s_first, int s_last);
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static ulong flash_get_size_32(vu_long * addr, flash_info_t * info);
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static ulong flash_get_size_16(vu_long * addr, flash_info_t * info);
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#endif
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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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int size, erased;
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volatile unsigned long *flash;
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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_AMD:
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printf("AMD ");
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break;
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case FLASH_MAN_FUJ:
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printf("FUJITSU ");
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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_S29GL128N:
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printf ("S29GL128N (256 Mbit, uniform sector size)\n");
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break;
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case FLASH_AM320B:
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printf ("29LV320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM320T:
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printf ("29LV320T (32 Mbit, top boot sect)\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 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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/*
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* Check if whole sector is erased
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*/
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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 long *)info->start[i];
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size = size >> 2; /* divide by 4 for longword access */
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for (k = 0; k < size; k++) {
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if (*flash++ != 0xffffffff) {
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erased = 0;
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break;
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}
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}
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if ((i % 5) == 0)
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printf("\n ");
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printf(" %08lX%s%s", 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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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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#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
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static ulong flash_get_size(vu_long * addr, flash_info_t * info)
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{
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DEBUGF("get_size: FLASH ADDR %08lx\n", addr);
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/* bit 0 used for big flash marking */
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if ((ulong)addr & 0x1)
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return flash_get_size_16((vu_long *)((ulong)addr & 0xfffffffe), info);
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else
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return flash_get_size_32(addr, info);
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}
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static ulong flash_get_size_32(vu_long * addr, flash_info_t * info)
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#else
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static ulong flash_get_size(vu_long * addr, flash_info_t * info)
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#endif
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{
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short i;
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CONFIG_SYS_FLASH_WORD_SIZE value;
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ulong base = (ulong) addr;
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volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
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DEBUGF("get_size32: FLASH ADDR: %08x\n", (unsigned)addr);
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/* Write auto select command: read Manufacturer ID */
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addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
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udelay(1000);
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value = addr2[0];
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DEBUGF("FLASH MANUFACT: %x\n", value);
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switch (value) {
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case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
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info->flash_id = FLASH_MAN_AMD;
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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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return (0); /* no or unknown flash */
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}
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value = addr2[1]; /* device ID */
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DEBUGF("\nFLASH DEVICEID: %x\n", value);
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switch (value) {
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case AMD_ID_MIRROR:
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DEBUGF("Mirror Bit flash: addr[14] = %08lX addr[15] = %08lX\n",
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addr[14], addr[15]);
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switch(addr[14]) {
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case AMD_ID_GL128N_2:
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if (addr[15] != AMD_ID_GL128N_3) {
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DEBUGF("Chip: S29GL128N -> unknown\n");
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info->flash_id = FLASH_UNKNOWN;
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} else {
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DEBUGF("Chip: S29GL128N\n");
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info->flash_id += FLASH_S29GL128N;
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info->sector_count = 128;
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info->size = 0x02000000;
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}
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break;
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default:
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info->flash_id = FLASH_UNKNOWN;
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return(0);
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}
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break;
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default:
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info->flash_id = FLASH_UNKNOWN;
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return (0); /* => no or unknown flash */
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}
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/* set up sector start address table */
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for (i = 0; i < info->sector_count; i++)
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info->start[i] = base + (i * 0x00040000);
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/* check for protected sectors */
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for (i = 0; i < info->sector_count; i++) {
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/* read sector protection at sector address, (A7 .. A0) = 0x02 */
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/* D0 = 1 if protected */
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addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
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info->protect[i] = addr2[2] & 1;
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}
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/* issue bank reset to return to read mode */
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addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
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return (info->size);
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}
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static int wait_for_DQ7_32(flash_info_t * info, int sect)
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{
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ulong start, now, last;
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volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
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(CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
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start = get_timer(0);
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last = start;
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while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
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(CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
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if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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printf("Timeout\n");
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return -1;
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}
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/* show that we're waiting */
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if ((now - last) > 1000) { /* every second */
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putc('.');
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last = now;
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}
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}
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return 0;
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}
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#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
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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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if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) {
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return flash_erase_16(info, s_first, s_last);
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} else {
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return flash_erase_32(info, s_first, s_last);
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}
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}
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static int flash_erase_32(flash_info_t * info, int s_first, int s_last)
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#else
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int flash_erase(flash_info_t * info, int s_first, int s_last)
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#endif
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{
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volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
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volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
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int flag, prot, sect;
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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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return 1;
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}
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if (info->flash_id == FLASH_UNKNOWN) {
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printf("Can't erase unknown flash type - aborted\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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if (prot)
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printf("- Warning: %d protected sectors will not be erased!", prot);
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printf("\n");
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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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addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
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addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
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addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
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/*
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* Wait for each sector to complete, it's more
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* reliable. According to AMD Spec, you must
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* issue all erase commands within a specified
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* timeout. This has been seen to fail, especially
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* if printf()s are included (for debug)!!
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*/
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wait_for_DQ7_32(info, sect);
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}
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}
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/* re-enable interrupts if necessary */
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if (flag)
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enable_interrupts();
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/* wait at least 80us - let's wait 1 ms */
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udelay(1000);
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/* reset to read mode */
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addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
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addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
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printf(" done\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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ulong cp, wp, data;
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int i, l, rc;
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wp = (addr & ~3); /* get lower word aligned address */
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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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for (; i < 4 && 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 < 4; ++i, ++cp)
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data = (data << 8) | (*(uchar *) cp);
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if ((rc = write_word(info, wp, data)) != 0)
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return (rc);
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wp += 4;
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}
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|
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/*
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* handle word aligned part
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*/
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while (cnt >= 4) {
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data = 0;
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for (i = 0; i < 4; ++i)
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data = (data << 8) | *src++;
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if ((rc = write_word(info, wp, data)) != 0)
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return (rc);
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wp += 4;
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cnt -= 4;
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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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* handle unaligned tail bytes
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*/
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data = 0;
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for (i = 0, cp = wp; i < 4 && 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 < 4; ++i, ++cp)
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data = (data << 8) | (*(uchar *) cp);
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|
|
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return (write_word(info, wp, data));
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|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
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* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
|
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static int write_word(flash_info_t * info, ulong dest, ulong data)
|
|
{
|
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if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) {
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return write_word_16(info, dest, data);
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|
} else {
|
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return write_word_32(info, dest, data);
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|
}
|
|
}
|
|
|
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static int write_word_32(flash_info_t * info, ulong dest, ulong data)
|
|
#else
|
|
static int write_word(flash_info_t * info, ulong dest, ulong data)
|
|
#endif
|
|
{
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
|
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volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
|
|
ulong *datap = &data;
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 =
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|
(volatile CONFIG_SYS_FLASH_WORD_SIZE *)datap;
|
|
ulong start;
|
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int i, flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_long *)dest) & data) != data)
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|
return (2);
|
|
|
|
for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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|
addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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|
addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
|
|
|
|
dest2[i] = data2[i];
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer(0);
|
|
while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
|
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(data2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
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|
|
|
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
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return (1);
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|
}
|
|
}
|
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|
|
return (0);
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_FLASH_2ND_16BIT_DEV
|
|
|
|
#undef CONFIG_SYS_FLASH_WORD_SIZE
|
|
#define CONFIG_SYS_FLASH_WORD_SIZE unsigned short
|
|
|
|
/*
|
|
* The following code cannot be run from FLASH!
|
|
*/
|
|
static ulong flash_get_size_16(vu_long * addr, flash_info_t * info)
|
|
{
|
|
short i;
|
|
CONFIG_SYS_FLASH_WORD_SIZE value;
|
|
ulong base = (ulong) addr;
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
|
|
|
|
DEBUGF("get_size16: FLASH ADDR: %08x\n", (unsigned)addr);
|
|
|
|
/* issue bank reset to return to read mode */
|
|
addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF000F000;
|
|
|
|
/* Write auto select command: read Manufacturer ID */
|
|
addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
|
|
addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
|
|
addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x90009000;
|
|
udelay(1000);
|
|
|
|
value = swap16(addr2[0]);
|
|
DEBUGF("FLASH MANUFACT: %x\n", value);
|
|
|
|
switch (value) {
|
|
case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
|
|
info->flash_id = FLASH_MAN_AMD;
|
|
break;
|
|
case (CONFIG_SYS_FLASH_WORD_SIZE) FUJ_MANUFACT:
|
|
info->flash_id = FLASH_MAN_FUJ;
|
|
break;
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
return (0); /* no or unknown flash */
|
|
}
|
|
|
|
value = swap16(addr2[1]); /* device ID */
|
|
DEBUGF("\nFLASH DEVICEID: %x\n", value);
|
|
|
|
switch (value) {
|
|
case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320B:
|
|
info->flash_id += FLASH_AM320B;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000;
|
|
break; /* => 4 MB */
|
|
case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_LV320T:
|
|
info->flash_id += FLASH_AM320T;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000;
|
|
break; /* => 4 MB */
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return (0); /* => no or unknown flash */
|
|
}
|
|
|
|
if (info->flash_id & FLASH_BTYPE) {
|
|
/* set sector offsets for bottom boot block type */
|
|
info->start[0] = base + 0x00000000;
|
|
info->start[1] = base + 0x00002000;
|
|
info->start[2] = base + 0x00004000;
|
|
info->start[3] = base + 0x00006000;
|
|
info->start[4] = base + 0x00008000;
|
|
info->start[5] = base + 0x0000a000;
|
|
info->start[6] = base + 0x0000c000;
|
|
info->start[7] = base + 0x0000e000;
|
|
|
|
for (i = 8; i < info->sector_count; i++)
|
|
info->start[i] = base + (i * 0x00010000) - 0x00070000;
|
|
} else {
|
|
/* set sector offsets for top boot block type */
|
|
i = info->sector_count - 1;
|
|
info->start[i--] = base + info->size - 0x00002000;
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00006000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
info->start[i--] = base + info->size - 0x0000a000;
|
|
info->start[i--] = base + info->size - 0x0000c000;
|
|
info->start[i--] = base + info->size - 0x0000e000;
|
|
|
|
for (; i >= 0; i--)
|
|
info->start[i] = base + i * 0x00010000;
|
|
}
|
|
|
|
/* check for protected sectors */
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
|
|
/* D0 = 1 if protected */
|
|
addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
|
|
|
|
info->protect[i] = addr2[2] & 1;
|
|
}
|
|
|
|
/* issue bank reset to return to read mode */
|
|
addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF000F000;
|
|
|
|
return (info->size);
|
|
}
|
|
|
|
static int wait_for_DQ7_16(flash_info_t * info, int sect)
|
|
{
|
|
ulong start, now, last;
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
|
|
(CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
start = get_timer(0);
|
|
last = start;
|
|
while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000) !=
|
|
(CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000) {
|
|
if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
|
printf("Timeout\n");
|
|
return -1;
|
|
}
|
|
/* show that we're waiting */
|
|
if ((now - last) > 1000) { /* every second */
|
|
putc('.');
|
|
last = now;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int flash_erase_16(flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
|
|
int flag, prot, sect;
|
|
|
|
if ((s_first < 0) || (s_first > s_last)) {
|
|
if (info->flash_id == FLASH_UNKNOWN)
|
|
printf("- missing\n");
|
|
else
|
|
printf("- no sectors to erase\n");
|
|
return 1;
|
|
}
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
printf("Can't erase unknown flash type - aborted\n");
|
|
return 1;
|
|
}
|
|
|
|
prot = 0;
|
|
for (sect = s_first; sect <= s_last; ++sect) {
|
|
if (info->protect[sect])
|
|
prot++;
|
|
}
|
|
|
|
if (prot)
|
|
printf("- Warning: %d protected sectors will not be erased!", prot);
|
|
|
|
printf("\n");
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect <= s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
|
|
addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
|
|
addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000;
|
|
addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
|
|
addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
|
|
addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x30003000; /* sector erase */
|
|
|
|
/*
|
|
* Wait for each sector to complete, it's more
|
|
* reliable. According to AMD Spec, you must
|
|
* issue all erase commands within a specified
|
|
* timeout. This has been seen to fail, especially
|
|
* if printf()s are included (for debug)!!
|
|
*/
|
|
wait_for_DQ7_16(info, sect);
|
|
}
|
|
}
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* wait at least 80us - let's wait 1 ms */
|
|
udelay(1000);
|
|
|
|
/* reset to read mode */
|
|
addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
|
|
addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xF000F000; /* reset bank */
|
|
|
|
printf(" done\n");
|
|
return 0;
|
|
}
|
|
|
|
static int write_word_16(flash_info_t * info, ulong dest, ulong data)
|
|
{
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
|
|
ulong *datap = &data;
|
|
volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 =
|
|
(volatile CONFIG_SYS_FLASH_WORD_SIZE *)datap;
|
|
ulong start;
|
|
int i;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
|
|
if ((dest2[i] & swap16(data2[i])) != swap16(data2[i]))
|
|
return (2);
|
|
}
|
|
|
|
for (i = 0; i < 4 / sizeof(CONFIG_SYS_FLASH_WORD_SIZE); i++) {
|
|
int flag;
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xAA00AA00;
|
|
addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x55005500;
|
|
addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0xA000A000;
|
|
|
|
dest2[i] = swap16(data2[i]);
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer(0);
|
|
while ((dest2[i] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000) !=
|
|
(swap16(data2[i]) & (CONFIG_SYS_FLASH_WORD_SIZE) 0x80008000)) {
|
|
|
|
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
#endif /* CONFIG_SYS_FLASH_2ND_16BIT_DEV */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Functions
|
|
*/
|
|
static ulong flash_get_size(vu_long * addr, flash_info_t * info);
|
|
static int write_word(flash_info_t * info, ulong dest, ulong data);
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
unsigned long flash_init(void)
|
|
{
|
|
unsigned long total_b = 0;
|
|
unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
|
|
unsigned short index = 0;
|
|
int i;
|
|
|
|
DEBUGF("\n");
|
|
DEBUGF("FLASH: Index: %d\n", index);
|
|
|
|
/* Init: no FLASHes known */
|
|
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
flash_info[i].sector_count = -1;
|
|
flash_info[i].size = 0;
|
|
|
|
/* check whether the address is 0 */
|
|
if (flash_addr_table[index][i] == 0)
|
|
continue;
|
|
|
|
/* call flash_get_size() to initialize sector address */
|
|
size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
|
|
&flash_info[i]);
|
|
|
|
flash_info[i].size = size_b[i];
|
|
|
|
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
|
|
printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
|
|
i+1, size_b[i], size_b[i] << 20);
|
|
flash_info[i].sector_count = -1;
|
|
flash_info[i].size = 0;
|
|
}
|
|
|
|
/* Monitor protection ON by default */
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
|
|
CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
|
|
&flash_info[i]);
|
|
#if defined(CONFIG_ENV_IS_IN_FLASH)
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
|
|
CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
|
|
&flash_info[i]);
|
|
#if defined(CONFIG_ENV_ADDR_REDUND)
|
|
(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
|
|
CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
|
|
&flash_info[i]);
|
|
#endif
|
|
#endif
|
|
total_b += flash_info[i].size;
|
|
}
|
|
|
|
return total_b;
|
|
}
|
|
#endif /* if defined(CONFIG_CAM5200) && defined(CONFIG_CAM5200_NIOSFLASH) */
|
|
|