[U-Boot] [PATCH] mmc: rockchip_sdhci: add clock init for mmc

Kever Yang
2016-10-07T09:23:51Z

Init the clock rate to CONFIG_ROCKCHIP_SDHCI_MAX_FREQ with clock driver
api.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
---

drivers/mmc/rockchip_sdhci.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index c56e1a3..e787343 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
@@ -33,7 +34,10 @@ 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);
+ clk_set_rate(&clk, CONFIG_ROCKCHIP_SDHCI_MAX_FREQ);
host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD;

ret = sdhci_setup_cfg(&plat->cfg, host, CONFIG_ROCKCHIP_SDHCI_MAX_FREQ,
--
1.9.1