Update dll_config_3 as per the host clock frequency as specified in the DLL Hardware Reference Guide. Signed-off-by: Sarthak Garg <sartgarg@xxxxxxxxxxxxxx> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> --- drivers/mmc/host/sdhci-msm.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 6588077..054b151 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -62,6 +62,9 @@ #define FINE_TUNE_MODE_EN BIT(27) #define BIAS_OK_SIGNAL BIT(29) +#define DLL_CONFIG_3_LOW_FREQ_VAL 0x08 +#define DLL_CONFIG_3_HIGH_FREQ_VAL 0x10 + #define CORE_VENDOR_SPEC_POR_VAL 0xa9c #define CORE_CLK_PWRSAVE BIT(1) #define CORE_HC_MCLK_SEL_DFLT (2 << 8) @@ -695,6 +698,16 @@ static int msm_init_cm_dll(struct sdhci_host *host) ENABLE_DLL_LOCK_STATUS | BIAS_OK_SIGNAL; writel_relaxed(config, host->ioaddr + msm_offset->core_dll_usr_ctl); + + config = readl_relaxed(host->ioaddr + + msm_offset->core_dll_config_3); + config &= ~0xFF; + if (msm_host->clk_rate < 150000000) + config |= DLL_CONFIG_3_LOW_FREQ_VAL; + else + config |= DLL_CONFIG_3_HIGH_FREQ_VAL; + writel_relaxed(config, host->ioaddr + + msm_offset->core_dll_config_3); } config = readl_relaxed(host->ioaddr + -- 2.7.4
