mirror of
https://github.com/AsahiLinux/u-boot
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1083 lines
30 KiB
C
1083 lines
30 KiB
C
/*
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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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/*
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* Modified 4/5/2001
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* Wait for completion of each sector erase command issued
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* 4/5/2001
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* Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
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*/
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#include <common.h>
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#include <ppc4xx.h>
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#include <asm/processor.h>
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flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
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#undef DEBUG
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#ifdef DEBUG
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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 /* DEBUG */
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#define CFG_FLASH_CHAR_SIZE unsigned char
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#define CFG_FLASH_CHAR_ADDR0 (0x0aaa)
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#define CFG_FLASH_CHAR_ADDR1 (0x0555)
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/*-----------------------------------------------------------------------
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* Functions
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*/
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static ulong flash_get_size(vu_long * addr, flash_info_t * info);
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static void flash_get_offsets(ulong base, flash_info_t * info);
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static int write_word(flash_info_t * info, ulong dest, ulong data);
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#ifdef FLASH_BASE1_PRELIM
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static int write_word_1(flash_info_t * info, ulong dest, ulong data);
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static int write_word_2(flash_info_t * info, ulong dest, ulong data);
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static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
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static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
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static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
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static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
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#endif
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unsigned long flash_init(void)
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{
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unsigned long size_b0, size_b1=0;
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int i;
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/* Init: no FLASHes known */
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for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
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flash_info[i].flash_id = FLASH_UNKNOWN;
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}
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/* Static FLASH Bank configuration here - FIXME XXX */
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size_b0 =
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flash_get_size((vu_long *) FLASH_BASE0_PRELIM, &flash_info[0]);
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if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
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size_b0, size_b0 << 20);
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}
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if (size_b0) {
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/* Setup offsets */
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flash_get_offsets(FLASH_BASE0_PRELIM, &flash_info[0]);
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/* Monitor protection ON by default */
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(void)flash_protect(FLAG_PROTECT_SET,
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CFG_MONITOR_BASE,
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CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
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&flash_info[0]);
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#ifdef CFG_ENV_IS_IN_FLASH
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(void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR,
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CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
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&flash_info[0]);
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(void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND,
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CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1,
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&flash_info[0]);
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#endif
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/* Also protect sector containing initial power-up instruction */
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/* (flash_protect() checks address range - other call ignored) */
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(void)flash_protect(FLAG_PROTECT_SET,
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0xFFFFFFFC, 0xFFFFFFFF, &flash_info[0]);
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flash_info[0].size = size_b0;
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}
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#ifdef FLASH_BASE1_PRELIM
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size_b1 =
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flash_get_size((vu_long *) FLASH_BASE1_PRELIM, &flash_info[1])*2;
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if (flash_info[1].flash_id == FLASH_UNKNOWN) {
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printf("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n",
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size_b1, size_b1 << 20);
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}
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if (size_b1) {
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/* Setup offsets */
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flash_get_offsets(FLASH_BASE1_PRELIM, &flash_info[1]);
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flash_info[1].size = size_b1;
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}
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#endif
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return (size_b0 + size_b1);
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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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/* set up sector start address table */
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if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
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(info->flash_id == FLASH_AM040)) {
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for (i = 0; i < info->sector_count; i++)
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info->start[i] = base + (i * 0x00010000);
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} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
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for (i = 0; i < info->sector_count; i++) {
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info->start[i] = base + (i * 0x00010000*2);
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}
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} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
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for (i = 0; i < info->sector_count; i++) {
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info->start[i] = base + (i * 0x00020000*2);
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}
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} else {
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if (info->flash_id & FLASH_BTYPE) {
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/* set sector offsets for bottom boot block type */
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info->start[0] = base + 0x00000000;
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info->start[1] = base + 0x00004000;
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info->start[2] = base + 0x00006000;
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info->start[3] = base + 0x00008000;
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for (i = 4; i < info->sector_count; i++) {
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info->start[i] =
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base + (i * 0x00010000) - 0x00030000;
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}
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} else {
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/* set sector offsets for top boot block type */
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i = info->sector_count - 1;
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info->start[i--] = base + info->size - 0x00004000;
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info->start[i--] = base + info->size - 0x00006000;
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info->start[i--] = base + info->size - 0x00008000;
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for (; i >= 0; i--) {
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info->start[i] = base + i * 0x00010000;
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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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int k;
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int size;
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int 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_STM:
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printf("STM ");
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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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case FLASH_MAN_SST:
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printf("SST ");
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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_AM040:
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printf("AM29F040 (512 Kbit, uniform sector size)\n");
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break;
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case FLASH_AM400B:
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printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM400T:
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printf("AM29LV400T (4 Mbit, top boot sector)\n");
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break;
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case FLASH_AM800B:
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printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM800T:
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printf("AM29LV800T (8 Mbit, top boot sector)\n");
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break;
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case FLASH_AMD016:
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printf("AM29F016D (16 Mbit, uniform sector size)\n");
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break;
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case FLASH_AM160B:
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printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM160T:
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printf("AM29LV160T (16 Mbit, top boot sector)\n");
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break;
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case FLASH_AM320B:
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printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM320T:
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printf("AM29LV320T (32 Mbit, top boot sector)\n");
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break;
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case FLASH_AM033C:
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printf("AM29LV033C (32 Mbit, top boot sector)\n");
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break;
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case FLASH_AMLV128U:
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printf("AM29LV128U (128 Mbit * 2, top boot sector)\n");
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break;
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case FLASH_SST800A:
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printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
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break;
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case FLASH_SST160A:
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printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
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break;
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case FLASH_STMW320DT:
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printf ("M29W320DT (32 M, top sector)\n");
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break;
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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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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",
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info->start[i],
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erased ? " E" : " ", 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 FLASH_BASE1_PRELIM
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static ulong flash_get_size(vu_long * addr, flash_info_t * info)
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{
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if ((ulong)addr == FLASH_BASE1_PRELIM) {
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return flash_get_size_2(addr, info);
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} else {
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return flash_get_size_1(addr, info);
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}
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}
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static ulong flash_get_size_1(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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CFG_FLASH_WORD_SIZE value;
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ulong base = (ulong) addr;
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volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
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DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
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/* Write auto select command: read Manufacturer ID */
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addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
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addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
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addr2[CFG_FLASH_ADDR0] = (CFG_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 (CFG_FLASH_WORD_SIZE) AMD_MANUFACT:
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info->flash_id = FLASH_MAN_AMD;
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break;
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case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT:
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info->flash_id = FLASH_MAN_FUJ;
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break;
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case (CFG_FLASH_WORD_SIZE) SST_MANUFACT:
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info->flash_id = FLASH_MAN_SST;
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break;
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case (CFG_FLASH_WORD_SIZE) STM_MANUFACT:
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info->flash_id = FLASH_MAN_STM;
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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 (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B:
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info->flash_id += FLASH_AM040;
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info->sector_count = 8;
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info->size = 0x0080000; /* => 512 ko */
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break;
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case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B:
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info->flash_id += FLASH_AM040;
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info->sector_count = 8;
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info->size = 0x0080000; /* => 512 ko */
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break;
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case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B:
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info->flash_id += FLASH_AM040;
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info->sector_count = 8;
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info->size = 0x0080000; /* => 512 ko */
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break;
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case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D:
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info->flash_id += FLASH_AMD016;
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info->sector_count = 32;
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info->size = 0x00200000;
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break; /* => 2 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C:
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info->flash_id += FLASH_AMDLV033C;
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info->sector_count = 64;
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info->size = 0x00400000;
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break; /* => 4 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T:
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info->flash_id += FLASH_AM400T;
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info->sector_count = 11;
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info->size = 0x00080000;
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break; /* => 0.5 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B:
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info->flash_id += FLASH_AM400B;
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info->sector_count = 11;
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info->size = 0x00080000;
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break; /* => 0.5 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T:
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info->flash_id += FLASH_AM800T;
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info->sector_count = 19;
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info->size = 0x00100000;
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break; /* => 1 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B:
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info->flash_id += FLASH_AM800B;
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info->sector_count = 19;
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info->size = 0x00100000;
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break; /* => 1 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T:
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info->flash_id += FLASH_AM160T;
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info->sector_count = 35;
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info->size = 0x00200000;
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break; /* => 2 MB */
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case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B:
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info->flash_id += FLASH_AM160B;
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info->sector_count = 35;
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info->size = 0x00200000;
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break; /* => 2 MB */
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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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if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
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((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
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((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
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for (i = 0; i < info->sector_count; i++)
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info->start[i] = base + (i * 0x00010000);
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}
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else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
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for (i = 0; i < info->sector_count; i++)
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info->start[i] = base + (i * 0x00010000 * 2);
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} else {
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if (info->flash_id & FLASH_BTYPE) {
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/* set sector offsets for bottom boot block type */
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info->start[0] = base + 0x00000000;
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info->start[1] = base + 0x00004000;
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info->start[2] = base + 0x00006000;
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info->start[3] = base + 0x00008000;
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for (i = 4; i < info->sector_count; i++) {
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info->start[i] =
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base + (i * 0x00010000) - 0x00030000;
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}
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} else {
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/* set sector offsets for top boot block type */
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i = info->sector_count - 1;
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info->start[i--] = base + info->size - 0x00004000;
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info->start[i--] = base + info->size - 0x00006000;
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info->start[i--] = base + info->size - 0x00008000;
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for (; i >= 0; i--) {
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info->start[i] = base + i * 0x00010000;
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}
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}
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}
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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 CFG_FLASH_WORD_SIZE *)(info->start[i]);
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/* For AMD29033C flash we need to resend the command of *
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* reading flash protection for upper 8 Mb of flash */
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if (i == 32) {
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addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
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addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
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addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
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}
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if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
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info->protect[i] = 0;
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else
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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] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
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return info->size;
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}
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|
|
static int wait_for_DQ7_1(flash_info_t * info, int sect)
|
|
{
|
|
ulong start, now, last;
|
|
volatile CFG_FLASH_WORD_SIZE *addr =
|
|
(CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
start = get_timer(0);
|
|
last = start;
|
|
while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
|
|
(CFG_FLASH_WORD_SIZE) 0x00800080) {
|
|
if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
|
|
printf("Timeout\n");
|
|
return -1;
|
|
}
|
|
/* show that we're waiting */
|
|
if ((now - last) > 1000) { /* every second */
|
|
putc('.');
|
|
last = now;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef FLASH_BASE1_PRELIM
|
|
int flash_erase(flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
|
|
return flash_erase_2(info, s_first, s_last);
|
|
} else {
|
|
return flash_erase_1(info, s_first, s_last);
|
|
}
|
|
}
|
|
|
|
static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
|
|
#else
|
|
int flash_erase(flash_info_t * info, int s_first, int s_last)
|
|
#endif
|
|
{
|
|
volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
volatile CFG_FLASH_WORD_SIZE *addr2;
|
|
int flag, prot, sect, l_sect;
|
|
int i;
|
|
|
|
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!\n",
|
|
prot);
|
|
} else {
|
|
printf("\n");
|
|
}
|
|
|
|
l_sect = -1;
|
|
|
|
/* 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 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */
|
|
for (i = 0; i < 50; i++)
|
|
udelay(1000); /* wait 1 ms */
|
|
} else {
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
|
|
}
|
|
l_sect = sect;
|
|
/*
|
|
* 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_1(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 = (CFG_FLASH_WORD_SIZE *) info->start[0];
|
|
addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
|
|
|
|
printf(" done\n");
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
{
|
|
ulong cp, wp, data;
|
|
int i, l, rc;
|
|
|
|
wp = (addr & ~3); /* get lower word aligned address */
|
|
|
|
/*
|
|
* handle unaligned start bytes
|
|
*/
|
|
if ((l = addr - wp) != 0) {
|
|
data = 0;
|
|
for (i = 0, cp = wp; i < l; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
}
|
|
for (; i < 4 && cnt > 0; ++i) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt == 0 && i < 4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
}
|
|
|
|
if ((rc = write_word(info, wp, data)) != 0) {
|
|
return rc;
|
|
}
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = 0;
|
|
for (i = 0; i < 4; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
if ((rc = write_word(info, wp, data)) != 0) {
|
|
return rc;
|
|
}
|
|
wp += 4;
|
|
cnt -= 4;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i < 4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
}
|
|
|
|
return (write_word(info, wp, data));
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
#ifdef FLASH_BASE1_PRELIM
|
|
static int write_word(flash_info_t * info, ulong dest, ulong data)
|
|
{
|
|
if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
|
|
return write_word_2(info, dest, data);
|
|
} else {
|
|
return write_word_1(info, dest, data);
|
|
}
|
|
}
|
|
|
|
static int write_word_1(flash_info_t * info, ulong dest, ulong data)
|
|
#else
|
|
static int write_word(flash_info_t * info, ulong dest, ulong data)
|
|
#endif
|
|
{
|
|
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
|
|
volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
|
|
ulong start;
|
|
int i;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_long *)dest) & data) != data) {
|
|
return 2;
|
|
}
|
|
|
|
for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
|
|
int flag;
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
addr2[CFG_FLASH_ADDR0] = (CFG_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] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
|
|
(data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) {
|
|
|
|
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef FLASH_BASE1_PRELIM
|
|
|
|
/*
|
|
* The following code cannot be run from FLASH!
|
|
*/
|
|
static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
|
|
{
|
|
short i;
|
|
CFG_FLASH_CHAR_SIZE value;
|
|
ulong base = (ulong) addr;
|
|
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
|
|
|
|
DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
|
|
|
|
/* Write auto select command: read Manufacturer ID */
|
|
addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
|
|
udelay(1000);
|
|
|
|
value = (CFG_FLASH_CHAR_SIZE)addr2[0];
|
|
DEBUGF("FLASH MANUFACT: %x\n", value);
|
|
|
|
switch (value) {
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_MANUFACT:
|
|
info->flash_id = FLASH_MAN_AMD;
|
|
break;
|
|
case (CFG_FLASH_CHAR_SIZE) FUJ_MANUFACT:
|
|
info->flash_id = FLASH_MAN_FUJ;
|
|
break;
|
|
case (CFG_FLASH_CHAR_SIZE) SST_MANUFACT:
|
|
info->flash_id = FLASH_MAN_SST;
|
|
break;
|
|
case (CFG_FLASH_CHAR_SIZE) STM_MANUFACT:
|
|
info->flash_id = FLASH_MAN_STM;
|
|
break;
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
return 0; /* no or unknown flash */
|
|
}
|
|
|
|
value = (CFG_FLASH_CHAR_SIZE)addr2[2]; /* device ID */
|
|
DEBUGF("\nFLASH DEVICEID: %x\n", value);
|
|
|
|
switch (value) {
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV040B:
|
|
info->flash_id += FLASH_AM040;
|
|
info->sector_count = 8;
|
|
info->size = 0x0080000; /* => 512 ko */
|
|
break;
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_F040B:
|
|
info->flash_id += FLASH_AM040;
|
|
info->sector_count = 8;
|
|
info->size = 0x0080000; /* => 512 ko */
|
|
break;
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) STM_ID_M29W040B:
|
|
info->flash_id += FLASH_AM040;
|
|
info->sector_count = 8;
|
|
info->size = 0x0080000; /* => 512 ko */
|
|
break;
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_F016D:
|
|
info->flash_id += FLASH_AMD016;
|
|
info->sector_count = 32;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV033C:
|
|
info->flash_id += FLASH_AMDLV033C;
|
|
info->sector_count = 64;
|
|
info->size = 0x00400000;
|
|
break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400T:
|
|
info->flash_id += FLASH_AM400T;
|
|
info->sector_count = 11;
|
|
info->size = 0x00080000;
|
|
break; /* => 0.5 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV400B:
|
|
info->flash_id += FLASH_AM400B;
|
|
info->sector_count = 11;
|
|
info->size = 0x00080000;
|
|
break; /* => 0.5 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800T:
|
|
info->flash_id += FLASH_AM800T;
|
|
info->sector_count = 19;
|
|
info->size = 0x00100000;
|
|
break; /* => 1 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV800B:
|
|
info->flash_id += FLASH_AM800B;
|
|
info->sector_count = 19;
|
|
info->size = 0x00100000;
|
|
break; /* => 1 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160T:
|
|
info->flash_id += FLASH_AM160T;
|
|
info->sector_count = 35;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_LV160B:
|
|
info->flash_id += FLASH_AM160B;
|
|
info->sector_count = 35;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
case (CFG_FLASH_CHAR_SIZE) AMD_ID_MIRROR:
|
|
if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_2
|
|
&& (CFG_FLASH_CHAR_SIZE)addr2[0x1e] == (CFG_FLASH_CHAR_SIZE)AMD_ID_LV128U_3) {
|
|
info->flash_id += FLASH_AMLV128U;
|
|
info->sector_count = 256;
|
|
info->size = 0x01000000;
|
|
} else if ((CFG_FLASH_CHAR_SIZE)addr2[0x1c] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_2
|
|
&& (CFG_FLASH_CHAR_SIZE)addr2[0x1e] == (CFG_FLASH_CHAR_SIZE)AMD_ID_GL128N_3 ) {
|
|
info->flash_id += FLASH_S29GL128N;
|
|
info->sector_count = 128;
|
|
info->size = 0x01000000;
|
|
}
|
|
else
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
break; /* => 2 MB */
|
|
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return 0; /* => no or unknown flash */
|
|
}
|
|
|
|
/* set up sector start address table */
|
|
if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
|
|
for (i = 0; i < info->sector_count; i++)
|
|
info->start[i] = base + (i * 0x00010000);
|
|
} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMLV128U) {
|
|
for (i = 0; i < info->sector_count; i++)
|
|
info->start[i] = base + (i * 0x00010000);
|
|
} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_S29GL128N ) {
|
|
for (i = 0; i < info->sector_count; i++)
|
|
info->start[i] = base + (i * 0x00020000);
|
|
} else {
|
|
if (info->flash_id & FLASH_BTYPE) {
|
|
/* set sector offsets for bottom boot block type */
|
|
info->start[0] = base + 0x00000000;
|
|
info->start[1] = base + 0x00004000;
|
|
info->start[2] = base + 0x00006000;
|
|
info->start[3] = base + 0x00008000;
|
|
for (i = 4; i < info->sector_count; i++) {
|
|
info->start[i] =
|
|
base + (i * 0x00010000) - 0x00030000;
|
|
}
|
|
} else {
|
|
/* set sector offsets for top boot block type */
|
|
i = info->sector_count - 1;
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00006000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
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 CFG_FLASH_WORD_SIZE *)(info->start[i]);
|
|
|
|
/* For AMD29033C flash we need to resend the command of *
|
|
* reading flash protection for upper 8 Mb of flash */
|
|
if (i == 32) {
|
|
addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
|
|
}
|
|
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
|
|
info->protect[i] = 0;
|
|
else
|
|
info->protect[i] = (CFG_FLASH_CHAR_SIZE)addr2[4] & 1;
|
|
}
|
|
|
|
/* issue bank reset to return to read mode */
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0;
|
|
return info->size;
|
|
}
|
|
|
|
static int wait_for_DQ7_2(flash_info_t * info, int sect)
|
|
{
|
|
ulong start, now, last;
|
|
volatile CFG_FLASH_WORD_SIZE *addr =
|
|
(CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
start = get_timer(0);
|
|
last = start;
|
|
while (((CFG_FLASH_WORD_SIZE)addr[0] & (CFG_FLASH_WORD_SIZE) 0x80808080) !=
|
|
(CFG_FLASH_WORD_SIZE) 0x80808080) {
|
|
if ((now = get_timer(start)) > CFG_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_2(flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
volatile CFG_FLASH_WORD_SIZE *addr2;
|
|
int flag, prot, sect, l_sect;
|
|
int i;
|
|
|
|
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!\n",
|
|
prot);
|
|
} else {
|
|
printf("\n");
|
|
}
|
|
|
|
l_sect = -1;
|
|
|
|
/* 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 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
|
|
addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080;
|
|
addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE) 0x50505050; /* block erase */
|
|
for (i = 0; i < 50; i++)
|
|
udelay(1000); /* wait 1 ms */
|
|
} else {
|
|
addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x80808080;
|
|
addr[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE) 0x30303030; /* sector erase */
|
|
}
|
|
l_sect = sect;
|
|
/*
|
|
* 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_2(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 = (CFG_FLASH_WORD_SIZE *) info->start[0];
|
|
addr[0] = (CFG_FLASH_WORD_SIZE) 0xF0F0F0F0; /* reset bank */
|
|
|
|
printf(" done\n");
|
|
return 0;
|
|
}
|
|
|
|
static int write_word_2(flash_info_t * info, ulong dest, ulong data)
|
|
{
|
|
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
|
|
volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
|
|
ulong start;
|
|
int i;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_long *)dest) & data) != data) {
|
|
return 2;
|
|
}
|
|
|
|
for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
|
|
int flag;
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
addr2[CFG_FLASH_CHAR_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
addr2[CFG_FLASH_CHAR_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xA0A0A0A0;
|
|
|
|
dest2[i] = data2[i];
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer(0);
|
|
while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080) !=
|
|
(data2[i] & (CFG_FLASH_WORD_SIZE) 0x80808080)) {
|
|
|
|
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* FLASH_BASE1_PRELIM */
|