diff options
| author | Sean Nelson <audiohacked@gmail.com> | 2010-02-19 00:52:10 +0000 |
|---|---|---|
| committer | Sean Nelson <audiohacked@gmail.com> | 2010-02-19 00:52:10 +0000 |
| commit | 6e0b912f469a5595c138b3f7ddad77d691330e2f (patch) | |
| tree | 1a47f0ac8bfdb814720ae28cbd96678e7424894b /w39v040c.c | |
| parent | ce5fad038d2802e6caec11da1bfc7dc9780e7ee5 (diff) | |
| download | ast2050-flashrom-6e0b912f469a5595c138b3f7ddad77d691330e2f.zip ast2050-flashrom-6e0b912f469a5595c138b3f7ddad77d691330e2f.tar.gz | |
Here's a very quick patch to fix the missing unlock code
Fixes missing unlock for certain chips:
* unlock_49lf00x
* Pm49fl002
* Pm49fl004
* unlock_49flxxxc
* SST49LF160C
* unlock_winbond_fwhub
* W39V080FA
* W39V080FA (dual mode)
Fixes missing printlock for certain chip:
* printlock_w39v040c
* W39V040C
Corresponding to flashrom svn r907.
Signed-off-by: Sean Nelson <audiohacked@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
Diffstat (limited to 'w39v040c.c')
| -rw-r--r-- | w39v040c.c | 26 |
1 files changed, 26 insertions, 0 deletions
@@ -50,6 +50,32 @@ int probe_w39v040c(struct flashchip *flash) return 1; } +int printlock_w39v040c(struct flashchip *flash) +{ + chipaddr bios = flash->virtual_memory; + uint8_t lock; + + chip_writeb(0xAA, bios + 0x5555); + programmer_delay(10); + chip_writeb(0x55, bios + 0x2AAA); + programmer_delay(10); + chip_writeb(0x90, bios + 0x5555); + programmer_delay(10); + + lock = chip_readb(bios + 0xfff2); + + chip_writeb(0xAA, bios + 0x5555); + programmer_delay(10); + chip_writeb(0x55, bios + 0x2AAA); + programmer_delay(10); + chip_writeb(0xF0, bios + 0x5555); + programmer_delay(40); + + printf("%s: Boot block #TBL is %slocked, rest of chip #WP is %slocked.\n", + __func__, lock & 0x4 ? "" : "un", lock & 0x8 ? "" : "un"); + return 0; +} + int erase_w39v040c(struct flashchip *flash) { int i; |
