sdcard: Disable CMD19/CMD23 for Spec v2

These commands got introduced by Spec v3
(see 0c3fb03f7ec and 4481bbc79d2).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-7-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 4e49a38..540bccb 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1179,6 +1179,9 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
         break;
 
     case 19:    /* CMD19: SEND_TUNING_BLOCK (SD) */
+        if (sd->spec_version < SD_PHY_SPECv3_01_VERS) {
+            break;
+        }
         if (sd->state == sd_transfer_state) {
             sd->state = sd_sendingdata_state;
             sd->data_offset = 0;
@@ -1187,6 +1190,9 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
         break;
 
     case 23:    /* CMD23: SET_BLOCK_COUNT */
+        if (sd->spec_version < SD_PHY_SPECv3_01_VERS) {
+            break;
+        }
         switch (sd->state) {
         case sd_transfer_state:
             sd->multi_blk_cnt = req.arg;