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 this change, it is now possible to initialize and use MMC
cards with omap730 and omap850 devices.
Signed-off-by: Cory Maccarrone <darkstar6262@xxxxxxxxx>
---
arch/arm/mach-omap1/clock.c | 3 ++-
arch/arm/mach-omap1/clock.h | 12 ++++++++++++
2 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 5f77b83..8ff0a07 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -125,7 +125,8 @@ static struct omap_clk omap_clks[] = {
CLK(NULL, "bclk", &bclk_1510, CK_1510 | CK_310),
CLK(NULL, "bclk", &bclk_16xx, CK_16XX),
CLK("mmci-omap.0", "fck", &mmc1_ck, CK_16XX | CK_1510 | CK_310),
- CLK("mmci-omap.0", "ick", &armper_ck.clk, CK_16XX | CK_1510 | CK_310),
+ CLK("mmci-omap.0", "fck", &mmc3_ck, CK_7XX),
+ CLK("mmci-omap.0", "ick", &armper_ck.clk, CK_16XX | CK_1510 | CK_310
| CK_7XX),
CLK("mmci-omap.1", "fck", &mmc2_ck, CK_16XX),
CLK("mmci-omap.1", "ick", &armper_ck.clk, CK_16XX),
/* Virtual clocks */
diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h
index 17f8742..fac921c 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,
--
1.5.6.3
--
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