diff options
Diffstat (limited to 'hw/sd')
| -rw-r--r-- | hw/sd/sd.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 2606b969e3..30ae435d66 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -53,6 +53,8 @@ #define SDSC_MAX_CAPACITY (2 * GiB) +#define INVALID_ADDRESS 0 + typedef enum { sd_r0 = 0, /* no response */ sd_r1, /* normal response command */ @@ -575,8 +577,8 @@ static void sd_reset(DeviceState *dev) sd->wpgrps_size = sect; sd->wp_groups = bitmap_new(sd->wpgrps_size); memset(sd->function_group, 0, sizeof(sd->function_group)); - sd->erase_start = 0; - sd->erase_end = 0; + sd->erase_start = INVALID_ADDRESS; + sd->erase_end = INVALID_ADDRESS; sd->size = size; sd->blk_len = 0x200; sd->pwd_len = 0; @@ -750,7 +752,8 @@ static void sd_erase(SDState *sd) uint64_t erase_end = sd->erase_end; trace_sdcard_erase(sd->erase_start, sd->erase_end); - if (!sd->erase_start || !sd->erase_end) { + if (sd->erase_start == INVALID_ADDRESS + || sd->erase_end == INVALID_ADDRESS) { sd->card_status |= ERASE_SEQ_ERROR; return; } @@ -763,8 +766,8 @@ static void sd_erase(SDState *sd) erase_start = sd_addr_to_wpnum(erase_start); erase_end = sd_addr_to_wpnum(erase_end); - sd->erase_start = 0; - sd->erase_end = 0; + sd->erase_start = INVALID_ADDRESS; + sd->erase_end = INVALID_ADDRESS; sd->csd[14] |= 0x40; for (i = erase_start; i <= erase_end; i++) { |