Author: stuge Date: 2009-01-26 07:42:02 +0100 (Mon, 26 Jan 2009) New Revision: 3917
Added: trunk/util/flashrom/m29f002.c Modified: trunk/util/flashrom/Makefile trunk/util/flashrom/flash.h trunk/util/flashrom/flashchips.c Log: flashrom: Driver for ST M29F002T/NT/B. T/NT TEST_OK_ PROBE READ ERASE WRITE
Test report from Julia. Thanks!
Signed-off-by: Peter Stuge peter@stuge.se Acked-by: Julia Longtin juri@solarnetone.org
Modified: trunk/util/flashrom/Makefile =================================================================== --- trunk/util/flashrom/Makefile 2009-01-26 04:48:01 UTC (rev 3916) +++ trunk/util/flashrom/Makefile 2009-01-26 06:42:02 UTC (rev 3917) @@ -34,7 +34,7 @@ w49f002u.o 82802ab.o pm49fl00x.o sst49lf040.o en29f002a.o \ sst49lfxxxc.o sst_fwhub.o layout.o cbtable.o flashchips.o physmap.o \ flashrom.o w39v080fa.o sharplhf00l04.o w29ee011.o spi.o it87spi.o \ - ichspi.o w39v040c.o sb600spi.o wbsio_spi.o + ichspi.o w39v040c.o sb600spi.o wbsio_spi.o m29f002.o
all: pciutils dep $(PROGRAM)
Modified: trunk/util/flashrom/flash.h =================================================================== --- trunk/util/flashrom/flash.h 2009-01-26 04:48:01 UTC (rev 3916) +++ trunk/util/flashrom/flash.h 2009-01-26 06:42:02 UTC (rev 3917) @@ -579,6 +579,11 @@ int write_sector_jedec(volatile uint8_t *bios, uint8_t *src, volatile uint8_t *dst, unsigned int page_size);
+/* m29f002.c */ +int erase_m29f002(struct flashchip *flash); +int write_m29f002t(struct flashchip *flash, uint8_t *buf); +int write_m29f002b(struct flashchip *flash, uint8_t *buf); + /* m29f400bt.c */ int probe_m29f400bt(struct flashchip *flash); int erase_m29f400bt(struct flashchip *flash);
Modified: trunk/util/flashrom/flashchips.c =================================================================== --- trunk/util/flashrom/flashchips.c 2009-01-26 04:48:01 UTC (rev 3916) +++ trunk/util/flashrom/flashchips.c 2009-01-26 06:42:02 UTC (rev 3917) @@ -1641,8 +1641,8 @@ .page_size = 64 * 1024, .tested = TEST_UNTESTED, .probe = probe_jedec, - .erase = erase_chip_jedec, - .write = write_jedec, + .erase = erase_m29f002, + .write = write_m29f002b, },
{ @@ -1652,10 +1652,10 @@ .model_id = ST_M29F002T, .total_size = 256, .page_size = 64 * 1024, - .tested = TEST_UNTESTED, + .tested = TEST_OK_PREW, .probe = probe_jedec, - .erase = erase_chip_jedec, - .write = write_jedec, + .erase = erase_m29f002, + .write = write_m29f002t, },
{
Added: trunk/util/flashrom/m29f002.c =================================================================== --- trunk/util/flashrom/m29f002.c (rev 0) +++ trunk/util/flashrom/m29f002.c 2009-01-26 06:42:02 UTC (rev 3917) @@ -0,0 +1,105 @@ +/* + * This file is part of flashrom. + * + * Copyright (C) 2009 Peter Stuge peter@stuge.se + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "flash.h" + +int erase_m29f002(struct flashchip *flash) { + volatile uint8_t *bios = flash->virtual_memory; + *(volatile uint8_t *)(bios + 0x555) = 0xaa; + *(volatile uint8_t *)(bios + 0xaaa) = 0x55; + *(volatile uint8_t *)(bios + 0x555) = 0x80; + *(volatile uint8_t *)(bios + 0x555) = 0xaa; + *(volatile uint8_t *)(bios + 0xaaa) = 0x55; + *(volatile uint8_t *)(bios + 0x555) = 0x10; + myusec_delay(10); + toggle_ready_jedec(bios); + return 0; +} + +static void rewrite_block(volatile uint8_t *bios, uint8_t *src, volatile uint8_t *dst, int size) { + /* erase */ + *(volatile uint8_t *)(bios + 0x555) = 0xaa; + *(volatile uint8_t *)(bios + 0xaaa) = 0x55; + *(volatile uint8_t *)(bios + 0x555) = 0x80; + *(volatile uint8_t *)(bios + 0x555) = 0xaa; + *(volatile uint8_t *)(bios + 0xaaa) = 0x55; + *dst = 0x30; + myusec_delay(10); + toggle_ready_jedec(bios); + + /* program */ + while (size--) { + *(volatile uint8_t *)(bios + 0x555) = 0xaa; + *(volatile uint8_t *)(bios + 0xaaa) = 0x55; + *(volatile uint8_t *)(bios + 0x555) = 0xa0; + *dst = *src; + toggle_ready_jedec(dst); + dst++; + src++; + } +} + +static void do_block(volatile uint8_t *bios, uint8_t *src, int i, unsigned long start, int size) { + printf("%d at address: 0x%08lx", i, start); + rewrite_block(bios, src + start, bios + start, size); + 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"); +} + +int write_m29f002t(struct flashchip *flash, uint8_t *buf) { + int i, page_size = flash->page_size; + volatile uint8_t *bios = flash->virtual_memory; + + /* M29F002(N)T has 7 blocks. From bottom to top their sizes are: + * 64k 64k 64k 32k 8k 8k 16k + * flash->page_size is set to 64k in flashchips.c + */ + + printf("Programming block: "); + for (i = 0; i < 3; i++) + do_block(bios, buf, i, i*page_size, page_size); + do_block(bios, buf, i++, 0x30000, 32*1024); + do_block(bios, buf, i++, 0x38000, 8*1024); + do_block(bios, buf, i++, 0x3a000, 8*1024); + do_block(bios, buf, i++, 0x3c000, 16*1024); + + printf("\n"); + return 0; +} + +int write_m29f002b(struct flashchip *flash, uint8_t *buf) { + int i = 0, page_size = flash->page_size; + volatile uint8_t *bios = flash->virtual_memory; + + /* M29F002B has 7 blocks. From bottom to top their sizes are: + * 16k 8k 8k 32k 64k 64k 64k + * flash->page_size is set to 64k in flashchips.c + */ + + printf("Programming block: "); + do_block(bios, buf, i++, 0x00000, 16*1024); + do_block(bios, buf, i++, 0x04000, 8*1024); + do_block(bios, buf, i++, 0x06000, 8*1024); + do_block(bios, buf, i++, 0x08000, 32*1024); + for (; i < 7; i++) + do_block(bios, buf, i, (i-3)*page_size, page_size); + + printf("\n"); + return 0; +}