Commit 61d9c4aa authored by Faiz Abbas's avatar Faiz Abbas Committed by Ulf Hansson

mmc: sdhci_am654: Add support for clkbuf_sel property

Add support for writing new clkbuf_sel property for the J721e 4 bit IP.
Signed-off-by: default avatarFaiz Abbas <faiz_abbas@ti.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Link: https://lore.kernel.org/r/20200619125801.9530-7-faiz_abbas@ti.comSigned-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 0003417d
...@@ -47,6 +47,8 @@ ...@@ -47,6 +47,8 @@
#define SEL100_MASK BIT(SEL100_SHIFT) #define SEL100_MASK BIT(SEL100_SHIFT)
#define FREQSEL_SHIFT 8 #define FREQSEL_SHIFT 8
#define FREQSEL_MASK GENMASK(10, 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_SHIFT 4
#define DLL_TRIM_ICP_MASK GENMASK(7, 4) #define DLL_TRIM_ICP_MASK GENMASK(7, 4)
#define DR_TY_SHIFT 20 #define DR_TY_SHIFT 20
...@@ -86,6 +88,7 @@ struct sdhci_am654_data { ...@@ -86,6 +88,7 @@ struct sdhci_am654_data {
struct regmap *base; struct regmap *base;
bool legacy_otapdly; bool legacy_otapdly;
int otap_del_sel[11]; int otap_del_sel[11];
int clkbuf_sel;
int trm_icp; int trm_icp;
int drv_strength; int drv_strength;
bool dll_on; bool dll_on;
...@@ -238,6 +241,9 @@ static void sdhci_am654_set_clock(struct sdhci_host *host, unsigned int clock) ...@@ -238,6 +241,9 @@ static void sdhci_am654_set_clock(struct sdhci_host *host, unsigned int clock)
regmap_update_bits(sdhci_am654->base, PHY_CTRL5, regmap_update_bits(sdhci_am654->base, PHY_CTRL5,
SELDLYTXCLK_MASK, 1 << SELDLYTXCLK_SHIFT); SELDLYTXCLK_MASK, 1 << SELDLYTXCLK_SHIFT);
} }
regmap_update_bits(sdhci_am654->base, PHY_CTRL5, CLKBUFSEL_MASK,
sdhci_am654->clkbuf_sel);
} }
static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host, static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host,
...@@ -260,6 +266,9 @@ static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host, ...@@ -260,6 +266,9 @@ static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host,
(otap_del_sel << OTAPDLYSEL_SHIFT); (otap_del_sel << OTAPDLYSEL_SHIFT);
regmap_update_bits(sdhci_am654->base, PHY_CTRL4, mask, val); regmap_update_bits(sdhci_am654->base, PHY_CTRL4, mask, val);
regmap_update_bits(sdhci_am654->base, PHY_CTRL5, CLKBUFSEL_MASK,
sdhci_am654->clkbuf_sel);
sdhci_set_clock(host, clock); sdhci_set_clock(host, clock);
} }
...@@ -582,6 +591,8 @@ static int sdhci_am654_get_of_property(struct platform_device *pdev, ...@@ -582,6 +591,8 @@ static int sdhci_am654_get_of_property(struct platform_device *pdev,
} }
device_property_read_u32(dev, "ti,strobe-sel", &sdhci_am654->strb_sel); device_property_read_u32(dev, "ti,strobe-sel", &sdhci_am654->strb_sel);
device_property_read_u32(dev, "ti,clkbuf-sel",
&sdhci_am654->clkbuf_sel);
sdhci_get_of_property(pdev); sdhci_get_of_property(pdev);
......
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