pxamci: introduce mmc_has_26mhz() and include pxa935

Along with more processor supporting 26MHz mode (including pxa935),
introduce an individual macro mmc_has_26mhz() for this.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

drivers/mmc/host/pxamci.c

@@ -43,6 +43,9 @@
 #define NR_SG	1
 #define CLKRT_OFF	(~0)
 
+#define mmc_has_26MHz()		(cpu_is_pxa300() || cpu_is_pxa310() \
+				|| cpu_is_pxa935())
+
 struct pxamci_host {
 	struct mmc_host		*mmc;
 	spinlock_t		lock;
@@ -457,7 +460,7 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 			clk_enable(host->clk);
 
 		if (ios->clock == 26000000) {
-			/* to support 26MHz on pxa300/pxa310 */
+			/* to support 26MHz */
 			host->clkrt = 7;
 		} else {
 			/* to handle (19.5MHz, 26MHz) */
@@ -608,8 +611,7 @@ static int pxamci_probe(struct platform_device *pdev)
 	 * Calculate minimum clock rate, rounding up.
 	 */
 	mmc->f_min = (host->clkrate + 63) / 64;
-	mmc->f_max = (cpu_is_pxa300() || cpu_is_pxa310()) ? 26000000
-							  : host->clkrate;
+	mmc->f_max = (mmc_has_26MHz()) ? 26000000 : host->clkrate;
 
 	pxamci_init_ocr(host);
 
@@ -618,7 +620,7 @@ static int pxamci_probe(struct platform_device *pdev)
 	if (!cpu_is_pxa25x()) {
 		mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
 		host->cmdat |= CMDAT_SDIO_INT_EN;
-		if (cpu_is_pxa300() || cpu_is_pxa310())
+		if (mmc_has_26MHz())
 			mmc->caps |= MMC_CAP_MMC_HIGHSPEED |
 				     MMC_CAP_SD_HIGHSPEED;
 	}