diff options
Diffstat (limited to 'spi.c')
-rw-r--r-- | spi.c | 42 |
1 files changed, 42 insertions, 0 deletions
@@ -701,6 +701,48 @@ int spi_block_erase_d8(struct flashchip *flash, unsigned int addr, unsigned int return 0; } +/* Block size is usually + * 4k for PMC + */ +int spi_block_erase_d7(struct flashchip *flash, unsigned int addr, unsigned int blocklen) +{ + int result; + struct spi_command cmds[] = { + { + .writecnt = JEDEC_WREN_OUTSIZE, + .writearr = (const unsigned char[]){ JEDEC_WREN }, + .readcnt = 0, + .readarr = NULL, + }, { + .writecnt = JEDEC_BE_D7_OUTSIZE, + .writearr = (const unsigned char[]){ JEDEC_BE_D7, (addr >> 16) & 0xff, (addr >> 8) & 0xff, (addr & 0xff) }, + .readcnt = 0, + .readarr = NULL, + }, { + .writecnt = 0, + .writearr = NULL, + .readcnt = 0, + .readarr = NULL, + }}; + + result = spi_send_multicommand(cmds); + if (result) { + fprintf(stderr, "%s failed during command execution at address 0x%x\n", + __func__, addr); + return result; + } + /* Wait until the Write-In-Progress bit is cleared. + * This usually takes 100-4000 ms, so wait in 100 ms steps. + */ + while (spi_read_status_register() & JEDEC_RDSR_BIT_WIP) + programmer_delay(100 * 1000); + if (check_erased_range(flash, addr, blocklen)) { + fprintf(stderr, "ERASE FAILED!\n"); + return -1; + } + return 0; +} + int spi_chip_erase_d8(struct flashchip *flash) { int i, rc = 0; |