diff options
Diffstat (limited to 'jedec.c')
| -rw-r--r-- | jedec.c | 45 |
1 files changed, 27 insertions, 18 deletions
@@ -242,21 +242,24 @@ static int erase_sector_jedec_common(struct flashchip *flash, unsigned int page, unsigned int pagesize, unsigned int mask) { chipaddr bios = flash->virtual_memory; + int delay_us = 0; + if(flash->probe_timing != TIMING_ZERO) + delay_us = 10; /* Issue the Sector Erase command */ chip_writeb(0xAA, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x55, bios + (0x2AAA & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x80, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0xAA, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x55, bios + (0x2AAA & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x30, bios + page); - programmer_delay(10); + programmer_delay(delay_us); /* wait for Toggle bit ready */ toggle_ready_jedec_slow(bios); @@ -272,21 +275,24 @@ static int erase_block_jedec_common(struct flashchip *flash, unsigned int block, unsigned int blocksize, unsigned int mask) { chipaddr bios = flash->virtual_memory; + int delay_us = 0; + if(flash->probe_timing != TIMING_ZERO) + delay_us = 10; /* Issue the Sector Erase command */ chip_writeb(0xAA, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x55, bios + (0x2AAA & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x80, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0xAA, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x55, bios + (0x2AAA & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x50, bios + block); - programmer_delay(10); + programmer_delay(delay_us); /* wait for Toggle bit ready */ toggle_ready_jedec_slow(bios); @@ -302,21 +308,24 @@ static int erase_chip_jedec_common(struct flashchip *flash, unsigned int mask) { int total_size = flash->total_size * 1024; chipaddr bios = flash->virtual_memory; + int delay_us = 0; + if(flash->probe_timing != TIMING_ZERO) + delay_us = 10; /* Issue the JEDEC Chip Erase command */ chip_writeb(0xAA, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x55, bios + (0x2AAA & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x80, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0xAA, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x55, bios + (0x2AAA & mask)); - programmer_delay(10); + programmer_delay(delay_us); chip_writeb(0x10, bios + (0x5555 & mask)); - programmer_delay(10); + programmer_delay(delay_us); toggle_ready_jedec_slow(bios); |
