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mmc: s5p_sdhci: add the set_mmc_clk for cmu control

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Samsung SoC use the cmu control to set clock.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Jaehoon Chung 2012-08-30 16:24:11 +00:00 committed by Andy Fleming
parent 8458e0283f
commit b09ed6e4fe
4 changed files with 9 additions and 0 deletions
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3
drivers/mmc/s5p_sdhci.c
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@ -21,6 +21,7 @@
#include <malloc.h>
#include <sdhci.h>
#include <asm/arch/mmc.h>
#include <asm/arch/clk.h>
static char *S5P_NAME = "SAMSUNG SDHCI";
static void s5p_sdhci_set_control_reg(struct sdhci_host *host)
@ -87,6 +88,8 @@ int s5p_sdhci_init(u32 regbase, int index, int bus_width)
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
host->set_control_reg = &s5p_sdhci_set_control_reg;
host->set_clock = set_mmc_clk;
host->index = index;
host->host_caps = MMC_MODE_HC;

3
drivers/mmc/sdhci.c
View File

@ -279,6 +279,9 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
}
div >>= 1;
if (host->set_clock)
host->set_clock(host->index, div);
clk = (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;

1
include/configs/trats.h
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@ -78,6 +78,7 @@
#define CONFIG_MMC
#define CONFIG_S5P_SDHCI
#define CONFIG_SDHCI
#define CONFIG_MMC_SDMA
/* PWM */
#define CONFIG_PWM

2
include/sdhci.h
View File

@ -253,8 +253,10 @@ struct sdhci_host {
unsigned int clock;
struct mmc *mmc;
const struct sdhci_ops *ops;
int index;
void (*set_control_reg)(struct sdhci_host *host);
void (*set_clock)(int dev_index, unsigned int div);
uint voltages;
};