diff options
Diffstat (limited to 'src/drivers/spi/winbond.c')
| -rw-r--r-- | src/drivers/spi/winbond.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/src/drivers/spi/winbond.c b/src/drivers/spi/winbond.c index a0e3884e07..a6089b538d 100644 --- a/src/drivers/spi/winbond.c +++ b/src/drivers/spi/winbond.c @@ -293,12 +293,10 @@ static int winbond_get_write_protection(const struct spi_flash *flash, const size_t granularity = (1 << params->protection_granularity_shift); if (params->bp_bits == 3) { - union status_reg1_bp3 reg1_bp3; + union status_reg1_bp3 reg1_bp3 = { .u = 0 }; ret = spi_flash_cmd(&flash->spi, flash->status_cmd, ®1_bp3.u, sizeof(reg1_bp3.u)); - if (ret) - return ret; if (reg1_bp3.sec) { // FIXME: not supported @@ -308,12 +306,10 @@ static int winbond_get_write_protection(const struct spi_flash *flash, bp = reg1_bp3.bp; tb = reg1_bp3.tb; } else if (params->bp_bits == 4) { - union status_reg1_bp4 reg1_bp4; + union status_reg1_bp4 reg1_bp4 = { .u = 0 }; ret = spi_flash_cmd(&flash->spi, flash->status_cmd, ®1_bp4.u, sizeof(reg1_bp4.u)); - if (ret) - return ret; bp = reg1_bp4.bp; tb = reg1_bp4.tb; @@ -321,6 +317,8 @@ static int winbond_get_write_protection(const struct spi_flash *flash, // FIXME: not supported return -1; } + if (ret) + return ret; ret = spi_flash_cmd(&flash->spi, CMD_W25_RDSR2, ®2.u, sizeof(reg2.u)); @@ -330,14 +328,15 @@ static int winbond_get_write_protection(const struct spi_flash *flash, winbond_bpbits_to_region(granularity, bp, tb, reg2.cmp, flash->size, &wp_region); - if (!reg2.srp1 || !wp_region.size) { + if (!region_sz(&wp_region)) { printk(BIOS_DEBUG, "WINBOND: flash isn't protected\n"); return 0; } printk(BIOS_DEBUG, "WINBOND: flash protected range 0x%08zx-0x%08zx\n", - wp_region.offset, wp_region.size); + region_offset(&wp_region), + region_offset(&wp_region) + region_sz(&wp_region)); return region_is_subregion(&wp_region, region); } |