diff mbox series

[PULL,25/32] sdcard: handle CMD54 (SDIO)

Message ID 20180222152307.7499-26-peter.maydell@linaro.org
State Accepted
Commit 49fb7381b2c86e78ca117451f5602f2299fb726a
Headers show
Series target-arm queue | expand

Commit Message

Peter Maydell Feb. 22, 2018, 3:23 p.m. UTC 
From: Philippe Mathieu-Daudé <f4bug@amsat.org>


Linux uses it to poll the bus before polling for a card.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>

Message-id: 20180215221325.7611-10-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

---
 hw/sd/sd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

-- 
2.16.1
diff mbox series

Patch

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index cc5caaf4f0..63da05eaef 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1371,9 +1371,8 @@  static sd_rsp_type_t sd_normal_command(SDState *sd,
         }
         break;
 
-    case 52:
-    case 53:
-        /* CMD52, CMD53: reserved for SDIO cards
+    case 52 ... 54:
+        /* CMD52, CMD53, CMD54: reserved for SDIO cards
          * (see the SDIO Simplified Specification V2.0)
          * Handle as illegal command but do not complain
          * on stderr, as some OSes may use these in their