[MMC] Save MMC card raw CSD structure.

drivers/mmc/mmc.c

@@ -523,6 +523,8 @@ static void mmc_read_csds(struct mmc_host *host)
 			continue;
 		}
 
+		memcpy(card->raw_csd, cmd.resp, sizeof(card->raw_csd));
+
 		mmc_decode_csd(&card->csd, cmd.resp);
 		mmc_decode_cid(&card->cid, card->raw_cid);
 	}

include/linux/mmc/card.h

@@ -46,6 +46,7 @@ struct mmc_card {
 #define MMC_STATE_PRESENT	(1<<0)
 #define MMC_STATE_DEAD		(1<<1)
 	u32			raw_cid[4];	/* raw card CID */
+	u32			raw_csd[4];	/* raw card CSD */
 	struct mmc_cid		cid;		/* card identification */
 	struct mmc_csd		csd;		/* card specific */
 };