we don't implement it, but can see firmwares using it via UNIMP logs.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/sd/sd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 2b4254802f..d2a0baa0a7 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1295,9 +1295,8 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req)
         }
         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
-- 
2.15.1