omap1: mmc: Add platform init for omap7xx

The MMC mux pins normally used by omap chips in devices.c
are different from what is needed by omap7xx chips.  This
change adds a conditional around the mux setup code to
enable the correct mux pins.

The omap730 and omap850 both use a different clock for the "fck"
clock of the MMC interface than other omap processors based on the
SOFT_REQ_REG, pin 12.  The "ick" clock is the same as that used
by other omap processors.

* Added the missing clock definition as mmc3_ck to clock.h
* Added the clock definition to omap_clks in clock.c
* Added CK_7XX to the mmci-omap.0 "ick" clock already in clock.c

With these changes, it is now possible to initialize and use MMC
cards with omap730 and omap850 devices.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 11 insertions, 4 deletions

diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index 6d2f72dcbb04..23ded2d49600 100644
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -108,15 +108,22 @@ static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
                         int controller_nr)
 {
         if (controller_nr == 0) {
-                omap_cfg_reg(MMC_CMD);
-                omap_cfg_reg(MMC_CLK);
-                omap_cfg_reg(MMC_DAT0);
+                if (cpu_is_omap7xx()) {
+                        omap_cfg_reg(MMC_7XX_CMD);
+                        omap_cfg_reg(MMC_7XX_CLK);
+                        omap_cfg_reg(MMC_7XX_DAT0);
+                } else {
+                        omap_cfg_reg(MMC_CMD);
+                        omap_cfg_reg(MMC_CLK);
+                        omap_cfg_reg(MMC_DAT0);
+                }
+
                 if (cpu_is_omap1710()) {
                         omap_cfg_reg(M15_1710_MMC_CLKI);
                         omap_cfg_reg(P19_1710_MMC_CMDDIR);
                         omap_cfg_reg(P20_1710_MMC_DATDIR0);
                 }
-                if (mmc_controller->slots[0].wires == 4) {
+                if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
                         omap_cfg_reg(MMC_DAT1);
                         /* NOTE: DAT2 can be on W10 (here) or M15 */
                         if (!mmc_controller->slots[0].nomux)