diff options
Diffstat (limited to 'spi.c')
| -rw-r--r-- | spi.c | 20 |
1 files changed, 2 insertions, 18 deletions
@@ -270,17 +270,9 @@ int generic_spi_chip_erase(struct flashchip *flash) generic_spi_write_enable(); /* Send CE (Chip Erase) */ generic_spi_command(1, 0, cmd, NULL); - /* The chip needs some time for erasing, the MX25L4005A has a maximum - * time of 7.5 seconds. - * FIXME: Check the status register instead - * Do we have to check the status register before calling - * write_disable()? The data sheet suggests we don't have to call - * write_disable() at all because WEL is reset automatically. + /* Wait until the Write-In-Progress bit is cleared */ while (generic_spi_read_status_register() & JEDEC_RDSR_BIT_WIP) sleep(1); - */ - generic_spi_write_disable(); - sleep(8); return 0; } @@ -294,17 +286,9 @@ void it8716f_spi_page_program(int block, uint8_t *buf, uint8_t *bios) { bios[256 * block + i] = buf[256 * block + i]; } outb(0, it8716f_flashport); - /* The chip needs some time for page program, the MX25L4005A has a - * maximum time of 5 ms. - * FIXME: Check the status register instead. - * Do we have to check the status register before calling - * write_disable()? The data sheet suggests we don't have to call - * write_disable() at all because WEL is reset automatically. + /* Wait until the Write-In-Progress bit is cleared */ while (generic_spi_read_status_register() & JEDEC_RDSR_BIT_WIP) usleep(1000); - */ - generic_spi_write_disable(); - usleep(5000); } void generic_spi_page_program(int block, uint8_t *buf, uint8_t *bios) |
