---

yaml --- r: 140495 b: refs/heads/master c: 0633f65 h: refs/heads/master i: 140493: c0de588 140491: 15bca76 140487: 276f0e0 140479: 91a9e13 v: v3
git-mirror · Mar 24, 2009 · bcaeadf · bcaeadf
1 parent 8865794
commit bcaeadf
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Showing 3 changed files with 16 additions and 8 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 063a9dbbce5559770b7e2e2f51bd29adf3ab9b1e
+refs/heads/master: 0633f654241483edc8a235ab87264ff6bbcd08d5
diff --git a/trunk/drivers/mmc/host/sdhci.c b/trunk/drivers/mmc/host/sdhci.c
@@ -1777,13 +1777,19 @@ int sdhci_add_host(struct sdhci_host *host)
 	 * Maximum block size. This varies from controller to controller and
 	 * is specified in the capabilities register.
 	 */
-	mmc->max_blk_size = (caps & SDHCI_MAX_BLOCK_MASK) >> SDHCI_MAX_BLOCK_SHIFT;
-	if (mmc->max_blk_size >= 3) {
-		printk(KERN_WARNING "%s: Invalid maximum block size, "
-			"assuming 512 bytes\n", mmc_hostname(mmc));
-		mmc->max_blk_size = 512;
-	} else
-		mmc->max_blk_size = 512 << mmc->max_blk_size;
+	if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) {
+		mmc->max_blk_size = 2;
+	} else {
+		mmc->max_blk_size = (caps & SDHCI_MAX_BLOCK_MASK) >>
+				SDHCI_MAX_BLOCK_SHIFT;
+		if (mmc->max_blk_size >= 3) {
+			printk(KERN_WARNING "%s: Invalid maximum block size, "
+				"assuming 512 bytes\n", mmc_hostname(mmc));
+			mmc->max_blk_size = 0;
+		}
+	}
+
+	mmc->max_blk_size = 512 << mmc->max_blk_size;
 
 	/*
 	 * Maximum block count.

diff --git a/trunk/drivers/mmc/host/sdhci.h b/trunk/drivers/mmc/host/sdhci.h
@@ -224,6 +224,8 @@ struct sdhci_host {
 #define SDHCI_QUIRK_PIO_NEEDS_DELAY			(1<<18)
 /* Controller losing signal/interrupt enable states after reset */
 #define SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET		(1<<19)
+/* Controller has to be forced to use block size of 2048 bytes */
+#define SDHCI_QUIRK_FORCE_BLK_SZ_2048			(1<<20)
 
 	int			irq;		/* Device IRQ */
 	void __iomem *		ioaddr;		/* Mapped address */