hw/sd: Correct the maximum size of a Standard Capacity SD Memory Card

Per the SD spec, Standard Capacity SD Memory Card (SDSC) supports
capacity up to and including 2 GiB.

Fixes: 2d7adea4fe ("hw/sd: Support SDHC size cards")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-Id: <1598021136-49525-2-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 805e21f..483c4f1 100644 (file)
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -51,6 +51,8 @@
 
 //#define DEBUG_SD 1
 
+#define SDSC_MAX_CAPACITY   (2 * GiB)
+
 typedef enum {
     sd_r0 = 0,    /* no response */
     sd_r1,        /* normal response command */
@@ -314,7 +316,7 @@ static void sd_ocr_powerup(void *opaque)
     /* card power-up OK */
     sd->ocr = FIELD_DP32(sd->ocr, OCR, CARD_POWER_UP, 1);
 
-    if (sd->size > 1 * GiB) {
+    if (sd->size > SDSC_MAX_CAPACITY) {
         sd->ocr = FIELD_DP32(sd->ocr, OCR, CARD_CAPACITY, 1);
     }
 }
@@ -386,7 +388,7 @@ static void sd_set_csd(SDState *sd, uint64_t size)
     uint32_t sectsize = (1 << (SECTOR_SHIFT + 1)) - 1;
     uint32_t wpsize = (1 << (WPGROUP_SHIFT + 1)) - 1;
 
-    if (size <= 1 * GiB) { /* Standard Capacity SD */
+    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 */