diff options
| author | Peng Fan | 2018-10-18 14:28:35 +0200 |
|---|---|---|
| committer | Stefano Babic | 2018-10-22 13:00:09 +0200 |
| commit | 3cb1450380229d1def6c70a3748ee0dcaef7ab29 (patch) | |
| tree | bcf85ec03281af609b155bef5be35f408e4492f0 | |
| parent | d423c93b6635b1a8923513ff1680e2c966d25d33 (diff) | |
mmc: fsl_esdhc: add uclass clk support
When CONIFG_CLK is enabled, use uclass clk api to handle
the clock.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | drivers/mmc/fsl_esdhc.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index 220f4f74a80..3cdfa7f5a68 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -11,6 +11,7 @@ #include <config.h> #include <common.h> #include <command.h> +#include <clk.h> #include <errno.h> #include <hwconfig.h> #include <mmc.h> @@ -121,6 +122,7 @@ struct esdhc_soc_data { struct fsl_esdhc_priv { struct fsl_esdhc *esdhc_regs; unsigned int sdhc_clk; + struct clk per_clk; unsigned int clock; unsigned int mode; unsigned int bus_width; @@ -1496,10 +1498,26 @@ static int fsl_esdhc_probe(struct udevice *dev) init_clk_usdhc(dev->seq); - priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq); - if (priv->sdhc_clk <= 0) { - dev_err(dev, "Unable to get clk for %s\n", dev->name); - return -EINVAL; + if (IS_ENABLED(CONFIG_CLK)) { + /* Assigned clock already set clock */ + ret = clk_get_by_name(dev, "per", &priv->per_clk); + if (ret) { + printf("Failed to get per_clk\n"); + return ret; + } + ret = clk_enable(&priv->per_clk); + if (ret) { + printf("Failed to enable per_clk\n"); + return ret; + } + + priv->sdhc_clk = clk_get_rate(&priv->per_clk); + } else { + priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq); + if (priv->sdhc_clk <= 0) { + dev_err(dev, "Unable to get clk for %s\n", dev->name); + return -EINVAL; + } } ret = fsl_esdhc_init(priv, plat); |