diff options
Diffstat (limited to 'mx29f002.c')
| -rw-r--r-- | mx29f002.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/mx29f002.c b/mx29f002.c index 7838c3d3c..411e539eb 100644 --- a/mx29f002.c +++ b/mx29f002.c @@ -43,6 +43,39 @@ int probe_29f002(struct flashchip *flash) return 0; } +int erase_sector_29f002(struct flashchip *flash, unsigned int address, unsigned int blocklen) +{ + chipaddr bios = flash->virtual_memory; + + chip_writeb(0xAA, bios + 0x555); + chip_writeb(0x55, bios + 0x2AA); + chip_writeb(0x80, bios + 0x555); + chip_writeb(0xAA, bios + 0x555); + chip_writeb(0x55, bios + 0x2AA); + chip_writeb(0x30, bios + address); + + programmer_delay(10); + + /* wait for Toggle bit ready */ + toggle_ready_jedec(bios + address); + + if (check_erased_range(flash, address, blocklen)) { + fprintf(stderr, "ERASE FAILED!\n"); + return -1; + } + return 0; +} + +int erase_chip_29f002(struct flashchip *flash, unsigned int addr, unsigned int blocklen) +{ + if ((addr != 0) || (blocklen != flash->total_size * 1024)) { + fprintf(stderr, "%s called with incorrect arguments\n", + __func__); + return -1; + } + return erase_29f002(flash); +} + /* FIXME: Use erase_chip_jedec? * erase_29f002 uses shorter addresses, sends F0 (exit ID mode) and * and has a bigger delay before polling the toggle bit */ |