diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-of-arasan.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-arasan.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index 410a55b1c25f..1cfd7f900339 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -28,13 +28,9 @@ #include "sdhci-pltfm.h" #include <linux/of.h> -#define SDHCI_ARASAN_CLK_CTRL_OFFSET 0x2c #define SDHCI_ARASAN_VENDOR_REGISTER 0x78 #define VENDOR_ENHANCED_STROBE BIT(0) -#define CLK_CTRL_TIMEOUT_SHIFT 16 -#define CLK_CTRL_TIMEOUT_MASK (0xf << CLK_CTRL_TIMEOUT_SHIFT) -#define CLK_CTRL_TIMEOUT_MIN_EXP 13 #define PHY_CLK_TOO_SLOW_HZ 400000 @@ -163,15 +159,15 @@ static int sdhci_arasan_syscon_write(struct sdhci_host *host, static unsigned int sdhci_arasan_get_timeout_clock(struct sdhci_host *host) { - u32 div; unsigned long freq; struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); - div = readl(host->ioaddr + SDHCI_ARASAN_CLK_CTRL_OFFSET); - div = (div & CLK_CTRL_TIMEOUT_MASK) >> CLK_CTRL_TIMEOUT_SHIFT; + /* SDHCI timeout clock is in kHz */ + freq = DIV_ROUND_UP(clk_get_rate(pltfm_host->clk), 1000); - freq = clk_get_rate(pltfm_host->clk); - freq /= 1 << (CLK_CTRL_TIMEOUT_MIN_EXP + div); + /* or in MHz */ + if (host->caps & SDHCI_TIMEOUT_CLK_UNIT) + freq = DIV_ROUND_UP(freq, 1000); return freq; } |