diff mbox series

[v3,09/21] sd: emmc: Update CMD1 definition for eMMC

Message ID 1614540807-30686-10-git-send-email-sai.pavan.boddu@xilinx.com (mailing list archive)
State New, archived
Headers show
Series eMMC support | expand

Commit Message

Sai Pavan Boddu Feb. 28, 2021, 7:33 p.m. UTC 
Add support to Power up the card and send response r3 in case of eMMC.

Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 hw/sd/sd.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 2612135..054ad1e 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1041,8 +1041,16 @@  static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
         break;
 
     case 1: /* CMD1:   SEND_OP_CMD */
-        if (!sd->spi)
+        /* MMC: Powerup & send r3
+         * SD: send r1 in spi mode
+         */
+        if (sd->emmc) {
+            sd_ocr_powerup(sd);
+            return sd->state == sd_idle_state ?
+                   sd_r3 : sd_r0;
+        } else if (!sd->spi) {
             goto bad_cmd;
+        }
 
         sd->state = sd_transfer_state;
         return sd_r1;