From: Faiz Abbas faiz_abbas@ti.com
Add support for writing new clock buffer select property for both the am654x and j721e 4 bit IPs
Signed-off-by: Faiz Abbas faiz_abbas@ti.com Signed-off-by: Aswath Govindraju a-govindraju@ti.com Reviewed-by: Jaehoon Chung jh80.chung@samsung.com --- drivers/mmc/am654_sdhci.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index b82558254ebb..e86ef1a8b218 100644 --- a/drivers/mmc/am654_sdhci.c +++ b/drivers/mmc/am654_sdhci.c @@ -48,6 +48,8 @@ #define SEL100_MASK BIT(SEL100_SHIFT) #define FREQSEL_SHIFT 8 #define FREQSEL_MASK GENMASK(10, 8) +#define CLKBUFSEL_SHIFT 0 +#define CLKBUFSEL_MASK GENMASK(2, 0) #define DLL_TRIM_ICP_SHIFT 4 #define DLL_TRIM_ICP_MASK GENMASK(7, 4) #define DR_TY_SHIFT 20 @@ -92,6 +94,7 @@ struct am654_sdhci_plat { u32 trm_icp; u32 drv_strength; u32 strb_sel; + u32 clkbuf_sel; u32 flags; #define DLL_PRESENT BIT(0) #define IOMUX_PRESENT BIT(1) @@ -295,6 +298,9 @@ static int am654_sdhci_set_ios_post(struct sdhci_host *host) am654_sdhci_setup_delay_chain(plat, mode); }
+ regmap_update_bits(plat->base, PHY_CTRL5, CLKBUFSEL_MASK, + plat->clkbuf_sel); + return 0; }
@@ -395,6 +401,9 @@ static int j721e_4bit_sdhci_set_ios_post(struct sdhci_host *host) val = (1 << OTAPDLYENA_SHIFT) | (otap_del_sel << OTAPDLYSEL_SHIFT); regmap_update_bits(plat->base, PHY_CTRL4, mask, val);
+ regmap_update_bits(plat->base, PHY_CTRL5, CLKBUFSEL_MASK, + plat->clkbuf_sel); + return 0; }
@@ -548,6 +557,8 @@ static int am654_sdhci_of_to_plat(struct udevice *dev) } }
+ dev_read_u32(dev, "ti,clkbuf-sel", &plat->clkbuf_sel); + ret = mmc_of_parse(dev, cfg); if (ret) return ret;