From: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
This patch sets the parent clock, source clock and sdhci module
clock speed for 6410 sdhci controller.
Signed-off-by: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
---
drivers/mmc/host/sdhci-s3c.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 50997d2..db1bb93 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -22,6 +22,8 @@
#include <plat/sdhci.h>
#include <plat/regs-sdhci.h>
+#include <plat/clock.h>
+#include <plat/cpu.h>
#include "sdhci.h"
@@ -221,6 +223,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
struct sdhci_host *host;
struct sdhci_s3c *sc;
struct resource *res;
+ struct clk *clk_mmc, *clk_parent;
int ret, irq, ptr, clks;
if (!pdata) {
@@ -240,6 +243,16 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
return -ENOENT;
}
+ /* Set the SDHCI controller clock rate */
+ clk_mmc = clk_get(dev, pdata->clk_source_name);
+ clk_parent = clk_get(dev, pdata->clk_parent_name);
+ if (!clk_mmc || !clk_parent) {
+ dev_err(dev, "could not obtain clock information");
+ return -ENXIO;
+ }
+ clk_set_parent(clk_mmc, clk_parent);
+ clk_set_rate(clk_mmc, pdata->clk_speed);
+
host = sdhci_alloc_host(dev, sizeof(struct sdhci_s3c));
if (IS_ERR(host)) {
dev_err(dev, "sdhci_alloc_host() failed\n");
--
1.5.3.4
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