hw/sd: Fix 2 GiB card CSD register values

Per the SD spec, to indicate a 2 GiB card, BLOCK_LEN shall be 1024 bytes, hence the READ_BL_LEN field in the CSD register shall be 10 instead of 9. This fixes the acceptance test error for the NetBSD 9.0 test of the Orange Pi PC that has an expanded SD card image of 2 GiB size. Fixes: 6d2d406 ("hw/sd: Correct the maximum size of a Standard Capacity SD Memory Card") Reported-by: Niek Linnenbank <[email protected]> Signed-off-by: Bin Meng <[email protected]> Tested-by: Niek Linnenbank <[email protected]> Message-Id: <[email protected]> Reviewed-by: Philippe Mathieu-Daudé <[email protected]> Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
dreddy · Nov 17, 2020 · 575094b · 575094b
1 parent cb5ed40
commit 575094b
Showing 1 changed file with 11 additions and 4 deletions.
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
@@ -389,18 +389,25 @@ static const uint8_t sd_csd_rw_mask[16] = {
 
 static void sd_set_csd(SDState *sd, uint64_t size)
 {
-    uint32_t csize = (size >> (CMULT_SHIFT + HWBLOCK_SHIFT)) - 1;
+    int hwblock_shift = HWBLOCK_SHIFT;
+    uint32_t csize;
     uint32_t sectsize = (1 << (SECTOR_SHIFT + 1)) - 1;
     uint32_t wpsize = (1 << (WPGROUP_SHIFT + 1)) - 1;
 
+    /* To indicate 2 GiB card, BLOCK_LEN shall be 1024 bytes */
+    if (size == SDSC_MAX_CAPACITY) {
+        hwblock_shift += 1;
+    }
+    csize = (size >> (CMULT_SHIFT + hwblock_shift)) - 1;
+
     if (size <= SDSC_MAX_CAPACITY) { /* Standard Capacity SD */
         sd->csd[0] = 0x00;	/* CSD structure */
         sd->csd[1] = 0x26;	/* Data read access-time-1 */
         sd->csd[2] = 0x00;	/* Data read access-time-2 */
         sd->csd[3] = 0x32;      /* Max. data transfer rate: 25 MHz */
         sd->csd[4] = 0x5f;	/* Card Command Classes */
         sd->csd[5] = 0x50 |	/* Max. read data block length */
-            HWBLOCK_SHIFT;
+            hwblock_shift;
         sd->csd[6] = 0xe0 |	/* Partial block for read allowed */
             ((csize >> 10) & 0x03);
         sd->csd[7] = 0x00 |	/* Device size */
@@ -414,9 +421,9 @@ static void sd_set_csd(SDState *sd, uint64_t size)
         sd->csd[11] = 0x00 |	/* Write protect group size */
             ((sectsize << 7) & 0x80) | wpsize;
         sd->csd[12] = 0x90 |	/* Write speed factor */
-            (HWBLOCK_SHIFT >> 2);
+            (hwblock_shift >> 2);
         sd->csd[13] = 0x20 |	/* Max. write data block length */
-            ((HWBLOCK_SHIFT << 6) & 0xc0);
+            ((hwblock_shift << 6) & 0xc0);
         sd->csd[14] = 0x00;	/* File format group */
     } else {			/* SDHC */
         size /= 512 * KiB;