* SPDX-License-Identifier: GPL-2.0+
*/
+#include <clk.h>
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <malloc.h>
#include <sdhci.h>
+DECLARE_GLOBAL_DATA_PTR;
+
#ifndef CONFIG_ZYNQ_SDHCI_MIN_FREQ
# define CONFIG_ZYNQ_SDHCI_MIN_FREQ 0
#endif
struct arasan_sdhci_plat {
struct mmc_config cfg;
struct mmc mmc;
+ unsigned int f_max;
};
static int arasan_sdhci_probe(struct udevice *dev)
struct arasan_sdhci_plat *plat = dev_get_platdata(dev);
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct sdhci_host *host = dev_get_priv(dev);
+ struct clk clk;
+ unsigned long clock;
int ret;
+ ret = clk_get_by_index(dev, 0, &clk);
+ if (ret < 0) {
+ dev_err(dev, "failed to get clock\n");
+ return ret;
+ }
+
+ clock = clk_get_rate(&clk);
+ if (IS_ERR_VALUE(clock)) {
+ dev_err(dev, "failed to get rate\n");
+ return clock;
+ }
+ debug("%s: CLK %ld\n", __func__, clock);
+
+ ret = clk_enable(&clk);
+ if (ret && ret != -ENOSYS) {
+ dev_err(dev, "failed to enable clock\n");
+ return ret;
+ }
+
host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD |
SDHCI_QUIRK_BROKEN_R1B;
host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT;
#endif
- ret = sdhci_setup_cfg(&plat->cfg, host, CONFIG_ZYNQ_SDHCI_MAX_FREQ,
+ host->max_clk = clock;
+
+ ret = sdhci_setup_cfg(&plat->cfg, host, plat->f_max,
CONFIG_ZYNQ_SDHCI_MIN_FREQ);
host->mmc = &plat->mmc;
if (ret)
static int arasan_sdhci_ofdata_to_platdata(struct udevice *dev)
{
+ struct arasan_sdhci_plat *plat = dev_get_platdata(dev);
struct sdhci_host *host = dev_get_priv(dev);
host->name = dev->name;
- host->ioaddr = (void *)dev_get_addr(dev);
+ host->ioaddr = (void *)devfdt_get_addr(dev);
+
+ plat->f_max = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
+ "max-frequency", CONFIG_ZYNQ_SDHCI_MAX_FREQ);
return 0;
}