Driver for ST M29F002T/NT/B
T/NT TEST_OK_ PROBE READ ERASE WRITE
Test report from Julia. Thanks!
Corresponding to flashrom svn r409 and coreboot v2 svn r3917.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Julia Longtin <juri@solarnetone.org>
diff --git a/Makefile b/Makefile
index 4388b53..cf9570a 100644
--- a/Makefile
+++ b/Makefile
@@ -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)
diff --git a/flash.h b/flash.h
index c74bacb..3985c60 100644
--- a/flash.h
+++ b/flash.h
@@ -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);
diff --git a/flashchips.c b/flashchips.c
index 1d0d23f..7d56b17 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -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,
},
{
diff --git a/m29f002.c b/m29f002.c
new file mode 100644
index 0000000..a836587
--- /dev/null
+++ b/m29f002.c
@@ -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;
+}