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>

diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index b00d673..c85f616 100644 (file)
--- a/drivers/mmc/host/pxamci.c
+++ b/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;
        }