diff options
| author | Igor Mitsyanko <i.mitsyanko@gmail.com> | 2012-10-30 07:45:12 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2012-10-30 07:45:12 +0000 |
| commit | f2d189d38436a8ccdedd94de01673b04aa008e11 (patch) | |
| tree | 7fe289b1116341c3193f508b6c345e1e03b23ecf /hw | |
| parent | fc5b64d0829297c7a525ddf6c0bb08ef0a9af5b6 (diff) | |
hw/sd.c: Fix erase for high capacity cards
Standard capacity cards SDSC use byte unit address while SDHC and SDXC cards use
block unit address (512 bytes) when setting ERASE_START and ERASE_END with CMD32
and CMD33, we have to account for this.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/sd.c | 17 | ||||
| -rw-r--r-- | hw/sd.h | 1 |
2 files changed, 14 insertions, 4 deletions
@@ -476,19 +476,28 @@ void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert) static void sd_erase(SDState *sd) { - int i, start, end; + int i; + uint64_t erase_start = sd->erase_start; + uint64_t erase_end = sd->erase_end; + if (!sd->erase_start || !sd->erase_end) { sd->card_status |= ERASE_SEQ_ERROR; return; } - start = sd_addr_to_wpnum(sd->erase_start); - end = sd_addr_to_wpnum(sd->erase_end); + if (extract32(sd->ocr, OCR_CCS_BITN, 1)) { + /* High capacity memory card: erase units are 512 byte blocks */ + erase_start *= 512; + erase_end *= 512; + } + + 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->csd[14] |= 0x40; - for (i = start; i <= end; i++) { + for (i = erase_start; i <= erase_end; i++) { if (test_bit(i, sd->wp_groups)) { sd->card_status |= WP_ERASE_SKIP; } @@ -50,6 +50,7 @@ #define READY_FOR_DATA (1 << 8) #define APP_CMD (1 << 5) #define AKE_SEQ_ERROR (1 << 3) +#define OCR_CCS_BITN 30 typedef enum { sd_none = -1, |