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, 12 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h
index 17f874271255..fac921c00bfe 100644
--- a/arch/arm/mach-omap1/clock.h
+++ b/arch/arm/mach-omap1/clock.h
@@ -637,6 +637,18 @@ static struct clk mmc2_ck = {
         .enable_bit     = 20,
 };
 
+static struct clk mmc3_ck = {
+        .name           = "mmc_ck",
+        .id             = 2,
+        .ops            = &clkops_generic,
+        /* Functional clock is direct from ULPD, interface clock is ARMPER */
+        .parent         = &armper_ck.clk,
+        .rate           = 48000000,
+        .flags          = RATE_FIXED | ENABLE_REG_32BIT | CLOCK_NO_IDLE_PARENT,
+        .enable_reg     = OMAP1_IO_ADDRESS(SOFT_REQ_REG),
+        .enable_bit     = 12,
+};
+
 static struct clk virtual_ck_mpu = {
         .name           = "mpu",
         .ops            = &clkops_null,