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authorJaehoon Chung <jh80.chung@samsung.com>2011-05-17 21:19:17 +0000
committerMinkyu Kang <mk7.kang@samsung.com>2011-05-26 19:33:09 +0900
commit68a8cbfad93241387ee1385b9d19e3e2b7919c4e (patch)
tree0d7664d1ddf1e819f58d593815db7a61f0e2f25d /drivers/mmc
parent5d845f2758d86f9287e2ac3d48fdcbe80ad1d21b (diff)
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S5P: add set_mmc_clk for external clock control
This patch added set_mmc_clk for external clock control. c210 didn't support host clock control. So We need external_clock_control function for c210. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/s5p_mmc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c
index 86447e0..280738f 100644
--- a/drivers/mmc/s5p_mmc.c
+++ b/drivers/mmc/s5p_mmc.c
@@ -22,6 +22,7 @@
#include <mmc.h>
#include <asm/io.h>
#include <asm/arch/mmc.h>
+#include <asm/arch/clk.h>
/* support 4 mmc hosts */
struct mmc mmc_dev[4];
@@ -291,6 +292,8 @@ static void mmc_change_clock(struct mmc_host *host, uint clock)
clk = (div << 8) | (1 << 0);
writew(clk, &host->reg->clkcon);
+ set_mmc_clk(host->dev_index, div);
+
/* Wait max 10 ms */
timeout = 10;
while (!(readw(&host->reg->clkcon) & (1 << 1))) {
@@ -464,6 +467,7 @@ static int s5p_mmc_initialize(int dev_index, int bus_width)
mmc->f_min = 400000;
mmc->f_max = 52000000;
+ mmc_host[dev_index].dev_index = dev_index;
mmc_host[dev_index].clock = 0;
mmc_host[dev_index].reg = s5p_get_base_mmc(dev_index);
mmc->b_max = 0;