diff options
| author | Faiz Abbas | 2020-06-19 18:28:00 +0530 |
|---|---|---|
| committer | Ulf Hansson | 2020-07-13 12:18:24 +0200 |
| commit | 61d9c4aa97f32a67ccde89325e5048d66095b55b (patch) | |
| tree | 19b816b148fd400eac536ad063aab8a8b49a51e9 /drivers/mmc/host | |
| parent | 0003417d5738fe2c8736aaa9abb3170fa0757689 (diff) | |
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: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Link: https://lore.kernel.org/r/20200619125801.9530-7-faiz_abbas@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/sdhci_am654.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c index f7535ee3a232..f9d24af12396 100644 --- a/drivers/mmc/host/sdhci_am654.c +++ b/drivers/mmc/host/sdhci_am654.c @@ -47,6 +47,8 @@ #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 @@ -86,6 +88,7 @@ struct sdhci_am654_data { struct regmap *base; bool legacy_otapdly; int otap_del_sel[11]; + int clkbuf_sel; int trm_icp; int drv_strength; bool dll_on; @@ -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, 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, @@ -260,6 +266,9 @@ static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host, (otap_del_sel << OTAPDLYSEL_SHIFT); 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); } @@ -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,clkbuf-sel", + &sdhci_am654->clkbuf_sel); sdhci_get_of_property(pdev); |