Init the clock rate to CONFIG_ROCKCHIP_SDHCI_MAX_FREQ with clock driver api.
Signed-off-by: Kever Yang kever.yang@rock-chips.com ---
Changes in v2: - using the return value
drivers/mmc/rockchip_sdhci.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c index c56e1a3..96049f3 100644 --- a/drivers/mmc/rockchip_sdhci.c +++ b/drivers/mmc/rockchip_sdhci.c @@ -12,6 +12,7 @@ #include <libfdt.h> #include <malloc.h> #include <sdhci.h> +#include <clk.h>
/* 400KHz is max freq for card ID etc. Use that as min */ #define EMMC_MIN_FREQ 400000 @@ -33,6 +34,16 @@ static int arasan_sdhci_probe(struct udevice *dev) struct rockchip_sdhc *prv = dev_get_priv(dev); struct sdhci_host *host = &prv->host; int ret; + struct clk clk; + + ret = clk_get_by_index(dev, 0, &clk); + if (!ret) { + ret = clk_set_rate(&clk, CONFIG_ROCKCHIP_SDHCI_MAX_FREQ); + if (IS_ERR_VALUE(ret)) + printf("%s clk set rate fail!\n", __func__); + } else { + printf("%s fail to get clk\n", __func__); + }
host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD;