[1/5] sdhci: sdhci-pxa.c: delete clk gating code - not correct

Commit Message

Philip Rakity Feb. 14, 2011, 6:58 a.m. UTC

None

Patch

diff --git a/arch/arm/plat-pxa/include/plat/sdhci.h b/arch/arm/plat-pxa/include/plat/sdhci.h
index bae194a..bd6ac06 100644
--- a/arch/arm/plat-pxa/include/plat/sdhci.h
+++ b/arch/arm/plat-pxa/include/plat/sdhci.h
@@ -15,7 +15,6 @@ 
 
 /* pxa specific flag */
 /* Require clock free running */
-#define PXA_FLAG_DISABLE_CLOCK_GATING (1<<0)
 
 #define PXA_FLAG_CARD_PERMANENT		(1<<1)
 /* Board design supports 8-bit data on SD/SDIO BUS */
diff --git a/drivers/mmc/host/sdhci-pxa.c b/drivers/mmc/host/sdhci-pxa.c
index 5a61208..4713238 100644
--- a/drivers/mmc/host/sdhci-pxa.c
+++ b/drivers/mmc/host/sdhci-pxa.c
@@ -29,9 +29,6 @@ 
 
 #define DRIVER_NAME	"sdhci-pxa"
 
-#define SD_FIFO_PARAM		0x104
-#define DIS_PAD_SD_CLK_GATE	0x400
-
 struct sdhci_pxa {
 	struct sdhci_host		*host;
 	struct sdhci_pxa_platdata	*pdata;
@@ -49,7 +46,6 @@  struct sdhci_pxa {
 static void set_clock(struct sdhci_host *host, unsigned int clock)
 {
 	struct sdhci_pxa *pxa = sdhci_priv(host);
-	u32 tmp = 0;
 
 	if (clock == 0) {
 		if (pxa->clk_enable) {
@@ -58,11 +54,6 @@  static void set_clock(struct sdhci_host *host, unsigned int clock)
 		}
 	} else {
 		if (0 == pxa->clk_enable) {
-			if (pxa->pdata->flags & PXA_FLAG_DISABLE_CLOCK_GATING) {
-				tmp = readl(host->ioaddr + SD_FIFO_PARAM);
-				tmp |= DIS_PAD_SD_CLK_GATE;
-				writel(tmp, host->ioaddr + SD_FIFO_PARAM);
-			}
 			clk_enable(pxa->clk);
 			pxa->clk_enable = 1;
 		}