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https://review.coreboot.org/flashrom.git
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1c296ca8bc
The deleted function in en29f002a.c is reintroduced as write_by_byte_jedec in jedec.c as it contains no chip-specific instructions. It is not yet used in other chip drivers, as key addresses (0x2AAA/0x5555) are often specified with less bits. After crosschecking datasheets, most of the fixmes can probably be resolved as indicated in them, causing significant code reduction. The common JEDEC code for bytewise programming does not program 0xFF at all. The chips that had a dedicated bytewise flash function which has been changed to write_jedec_1 thus changed flashing behaviour and the "write" test flag has been removed. This applies to: AMD Am29F002BB/Am29F002NBB AMD Am29F002BT/Am29F002NBT (TEST_OK_PREW before) AMIC A29002B AMIC A29002T (TEST_OK_PREW before) EON EN29F002(A)(N)B EON EN29F002(A)(N)T (TEST_OK_PREW before) Macronix MX29F001B (TEST_OK_PREW before) Macronix MX29F001T (TEST_OK_PREW before) Macronix MX29F002B Macronix MX29F002T (TEST_OK_PREW before) Macronix MX29LV040 Similar analysis should be performed for the read id stuff. Corresponding to flashrom svn r785. Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de> Acked-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
250 lines
6.8 KiB
C
250 lines
6.8 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2000 Silicon Integrated System Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "flash.h"
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/* WARNING!
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This chip uses the standard JEDEC Addresses in 16-bit mode as word
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addresses. In byte mode, 0xAAA has to be used instead of 0x555 and
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0x555 instead of 0x2AA. Do *not* blindly replace with standard JEDEC
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functions. */
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void write_page_m29f400bt(chipaddr bios, uint8_t *src,
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chipaddr dst, int page_size)
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{
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int i;
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for (i = 0; i < page_size; i++) {
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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chip_writeb(0xA0, bios + 0xAAA);
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/* transfer data from source to destination */
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chip_writeb(*src, dst);
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//chip_writeb(0xF0, bios);
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//programmer_delay(5);
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toggle_ready_jedec(dst);
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printf
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("Value in the flash at address 0x%lx = %#x, want %#x\n",
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(dst - bios), chip_readb(dst), *src);
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dst++;
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src++;
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}
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}
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int probe_m29f400bt(struct flashchip *flash)
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{
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chipaddr bios = flash->virtual_memory;
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uint8_t id1, id2;
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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chip_writeb(0x90, bios + 0xAAA);
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programmer_delay(10);
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id1 = chip_readb(bios);
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/* The data sheet says id2 is at (bios + 0x01) and id2 listed in
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* flash.h does not match. It should be possible to use JEDEC probe.
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*/
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id2 = chip_readb(bios + 0x02);
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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chip_writeb(0xF0, bios + 0xAAA);
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programmer_delay(10);
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printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __func__, id1, id2);
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if (id1 == flash->manufacture_id && id2 == flash->model_id)
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return 1;
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return 0;
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}
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int erase_m29f400bt(struct flashchip *flash)
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{
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chipaddr bios = flash->virtual_memory;
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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chip_writeb(0x80, bios + 0xAAA);
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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chip_writeb(0x10, bios + 0xAAA);
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programmer_delay(10);
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toggle_ready_jedec(bios);
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if (check_erased_range(flash, 0, flash->total_size * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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return 0;
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}
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int block_erase_m29f400bt(struct flashchip *flash, int start, int len)
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{
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chipaddr bios = flash->virtual_memory;
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chipaddr dst = bios + start;
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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chip_writeb(0x80, bios + 0xAAA);
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chip_writeb(0xAA, bios + 0xAAA);
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chip_writeb(0x55, bios + 0x555);
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//chip_writeb(0x10, bios + 0xAAA);
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chip_writeb(0x30, dst);
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programmer_delay(10);
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toggle_ready_jedec(bios);
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if (check_erased_range(flash, start, len)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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return 0;
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}
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int write_m29f400bt(struct flashchip *flash, uint8_t *buf)
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{
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int i;
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int total_size = flash->total_size * 1024;
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int page_size = flash->page_size;
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chipaddr bios = flash->virtual_memory;
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//erase_m29f400bt (flash);
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printf("Programming page:\n ");
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/*********************************
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*Pages for M29F400BT:
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* 16 0x7c000 0x7ffff TOP
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* 8 0x7a000 0x7bfff
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* 8 0x78000 0x79fff
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* 32 0x70000 0x77fff
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* 64 0x60000 0x6ffff
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* 64 0x50000 0x5ffff
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* 64 0x40000 0x4ffff
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*---------------------------------
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* 64 0x30000 0x3ffff
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* 64 0x20000 0x2ffff
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* 64 0x10000 0x1ffff
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* 64 0x00000 0x0ffff BOTTOM
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*********************************/
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printf("total_size/page_size = %d\n", total_size / page_size);
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for (i = 0; i < (total_size / page_size) - 1; i++) {
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printf("%04d at address: 0x%08x\n", i, i * page_size);
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if (block_erase_m29f400bt(flash, i * page_size, page_size)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + i * page_size,
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bios + i * page_size, page_size);
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printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
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}
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printf("%04d at address: 0x%08x\n", 7, 0x70000);
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if (block_erase_m29f400bt(flash, 0x70000, 32 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024);
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printf("%04d at address: 0x%08x\n", 8, 0x78000);
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if (block_erase_m29f400bt(flash, 0x78000, 8 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024);
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printf("%04d at address: 0x%08x\n", 9, 0x7a000);
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if (block_erase_m29f400bt(flash, 0x7a000, 8 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024);
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printf("%04d at address: 0x%08x\n", 10, 0x7c000);
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if (block_erase_m29f400bt(flash, 0x7c000, 16 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x7c000, bios + 0x7c000, 16 * 1024);
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printf("\n");
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return 0;
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}
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int write_coreboot_m29f400bt(struct flashchip *flash, uint8_t *buf)
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{
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chipaddr bios = flash->virtual_memory;
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printf("Programming page:\n ");
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/*********************************
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*Pages for M29F400BT:
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* 16 0x7c000 0x7ffff TOP
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* 8 0x7a000 0x7bfff
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* 8 0x78000 0x79fff
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* 32 0x70000 0x77fff
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* 64 0x60000 0x6ffff
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* 64 0x50000 0x5ffff
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* 64 0x40000 0x4ffff
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*---------------------------------
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* 64 0x30000 0x3ffff
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* 64 0x20000 0x2ffff
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* 64 0x10000 0x1ffff
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* 64 0x00000 0x0ffff BOTTOM
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*********************************/
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printf("%04d at address: 0x%08x\n", 7, 0x00000);
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if (block_erase_m29f400bt(flash, 0x00000, 64 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x00000, bios + 0x00000, 64 * 1024);
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printf("%04d at address: 0x%08x\n", 7, 0x10000);
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if (block_erase_m29f400bt(flash, 0x10000, 64 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x10000, bios + 0x10000, 64 * 1024);
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printf("%04d at address: 0x%08x\n", 7, 0x20000);
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if (block_erase_m29f400bt(flash, 0x20000, 64 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x20000, bios + 0x20000, 64 * 1024);
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printf("%04d at address: 0x%08x\n", 7, 0x30000);
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if (block_erase_m29f400bt(flash, 0x30000, 64 * 1024)) {
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fprintf(stderr, "ERASE FAILED!\n");
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return -1;
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}
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write_page_m29f400bt(bios, buf + 0x30000, bios + 0x30000, 64 * 1024);
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printf("\n");
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return 0;
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}
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