diff mbox series

[PULL,28/32] sdcard: handles more commands in SPI mode

Message ID 20180222152307.7499-29-peter.maydell@linaro.org
State Accepted
Commit 946897ce1897d50a9a432828a44e80be746066f7
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>


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

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

Message-id: 20180215221325.7611-13-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

---
 hw/sd/sd.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

-- 
2.16.1
diff mbox series

Patch

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 34080f0e4c..ff7ace3491 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1386,9 +1386,11 @@  static sd_rsp_type_t sd_normal_command(SDState *sd,
 
     /* Application specific commands (Class 8) */
     case 55:	/* CMD55:  APP_CMD */
-        if (sd->rca != rca)
-            return sd_r0;
-
+        if (!sd->spi) {
+            if (sd->rca != rca) {
+                return sd_r0;
+            }
+        }
         sd->expecting_acmd = true;
         sd->card_status |= APP_CMD;
         return sd_r1;
@@ -1408,6 +1410,18 @@  static sd_rsp_type_t sd_normal_command(SDState *sd,
         }
         break;
 
+    case 58:    /* CMD58:   READ_OCR (SPI) */
+        if (!sd->spi) {
+            goto bad_cmd;
+        }
+        return sd_r3;
+
+    case 59:    /* CMD59:   CRC_ON_OFF (SPI) */
+        if (!sd->spi) {
+            goto bad_cmd;
+        }
+        goto unimplemented_spi_cmd;
+
     default:
     bad_cmd:
         qemu_log_mask(LOG_GUEST_ERROR, "SD: Unknown CMD%i\n", req.cmd);
@@ -1431,6 +1445,9 @@  static sd_rsp_type_t sd_app_command(SDState *sd,
     sd->card_status |= APP_CMD;
     switch (req.cmd) {
     case 6:	/* ACMD6:  SET_BUS_WIDTH */
+        if (sd->spi) {
+            goto unimplemented_spi_cmd;
+        }
         switch (sd->state) {
         case sd_transfer_state:
             sd->sd_status[0] &= 0x3f;
@@ -1565,6 +1582,12 @@  static sd_rsp_type_t sd_app_command(SDState *sd,
     default:
         /* Fall back to standard commands.  */
         return sd_normal_command(sd, req);
+
+    unimplemented_spi_cmd:
+        /* Commands that are recognised but not yet implemented in SPI mode.  */
+        qemu_log_mask(LOG_UNIMP, "SD: CMD%i not implemented in SPI mode\n",
+                      req.cmd);
+        return sd_illegal;
     }
 
     qemu_log_mask(LOG_GUEST_ERROR, "SD: ACMD%i in a wrong state\n", req.cmd);