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openwrt-xburst/target/linux/generic/patches-2.6.32/086-mtd_m25p80_add_xxxs33b_support.patch
juhosg 2bbe78f8f6 generic: fix erase operation on the pm25lv flash chip
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22861 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-08-31 20:06:38 +00:00

30 lines
982 B
Diff

--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -632,6 +632,11 @@ static struct flash_info __devinitdata m
{ "en25p32", 0x1c2016, 0, 64 * 1024, 64, },
{ "en25p64", 0x1c2017, 0, 64 * 1024, 128, },
+ /* Numonyx -- xxxs33b */
+ { "160s33b", 0x898911, 0, 64 * 1024, 32, },
+ { "320s33b", 0x898912, 0, 64 * 1024, 64, },
+ { "640s33b", 0x898913, 0, 64 * 1024, 128, },
+
/* PMC -- pm25x "blocks" are 32K, sectors are 4K */
{ "pm25lv512", 0, 0, 32 * 1024, 2, SECT_4K_ALT },
{ "pm25lv010", 0, 0, 32 * 1024, 4, SECT_4K_ALT },
@@ -786,11 +791,12 @@ static int __devinit m25p_probe(struct s
dev_set_drvdata(&spi->dev, flash);
/*
- * Atmel serial flash tend to power up
+ * Atmel and Intel/Numonyx serial flash tend to power up
* with the software protection bits set
*/
- if (info->jedec_id >> 16 == 0x1f) {
+ if (info->jedec_id >> 16 == 0x1f ||
+ info->jedec_id >> 16 == 0x89) {
write_enable(flash);
write_sr(flash, 0);
}