diff options
author | Tom Rini | 2020-01-20 14:54:55 -0500 |
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committer | Tom Rini | 2020-01-20 14:54:55 -0500 |
commit | 07add22cab3be86067c227a30ad5d0feab541316 (patch) | |
tree | 9731f3a2a402d60f5a0d93fee6856d9fd1dc87b7 /drivers/mmc | |
parent | cd304e218012de4ac2e3d55e869b2102af4fdcb2 (diff) | |
parent | 1adea9cc03a73d43a8f5c88659fa163fe21b382b (diff) |
Merge tag '2020-01-20-ti-2020.04' of https://gitlab.denx.de/u-boot/custodians/u-boot-ti
K3 J721E:
* DMA support.
* MMC and ADMA support.
* EEPROM support.
* J721e High Security EVM support.
* USB DT nodes
K3 AM654:
* Fixed boot due to pmic probe error.
* USB support and DT nodes.
* ADMA support
DRA7xx/AM57xx:
* BBAI board support
* Clean up of net platform code under board/ti
AM33/AM43/Davinci:
* Reduce SPL size for omap3 boards.
* SPL DT support for da850-lcdk
* PLL divider fix for AM335x
Diffstat (limited to 'drivers/mmc')
-rw-r--r-- | drivers/mmc/am654_sdhci.c | 129 |
1 files changed, 99 insertions, 30 deletions
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index 7cd5516197c..41a90834ffc 100644 --- a/drivers/mmc/am654_sdhci.c +++ b/drivers/mmc/am654_sdhci.c @@ -36,11 +36,14 @@ #define OTAPDLYSEL_SHIFT 12 #define OTAPDLYSEL_MASK GENMASK(15, 12) #define STRBSEL_SHIFT 24 -#define STRBSEL_MASK GENMASK(27, 24) +#define STRBSEL_4BIT_MASK GENMASK(27, 24) +#define STRBSEL_8BIT_MASK GENMASK(31, 24) #define SEL50_SHIFT 8 #define SEL50_MASK BIT(SEL50_SHIFT) #define SEL100_SHIFT 9 #define SEL100_MASK BIT(SEL100_SHIFT) +#define FREQSEL_SHIFT 8 +#define FREQSEL_MASK GENMASK(10, 8) #define DLL_TRIM_ICP_SHIFT 4 #define DLL_TRIM_ICP_MASK GENMASK(7, 4) #define DR_TY_SHIFT 20 @@ -72,11 +75,20 @@ struct am654_sdhci_plat { u32 otap_del_sel; u32 trm_icp; u32 drv_strength; + u32 strb_sel; u32 flags; #define DLL_PRESENT (1 << 0) +#define IOMUX_PRESENT (1 << 1) +#define FREQSEL_2_BIT (1 << 2) +#define STRBSEL_4_BIT (1 << 3) bool dll_on; }; +struct am654_driver_data { + const struct sdhci_ops *ops; + u32 flags; +}; + static void am654_sdhci_set_control_reg(struct sdhci_host *host) { struct mmc *mmc = (struct mmc *)host->mmc; @@ -97,7 +109,7 @@ static int am654_sdhci_set_ios_post(struct sdhci_host *host) struct udevice *dev = host->mmc->dev; struct am654_sdhci_plat *plat = dev_get_platdata(dev); unsigned int speed = host->mmc->clock; - int sel50, sel100; + int sel50, sel100, freqsel; u32 mask, val; int ret; @@ -121,25 +133,49 @@ static int am654_sdhci_set_ios_post(struct sdhci_host *host) mask = OTAPDLYENA_MASK | OTAPDLYSEL_MASK; val = (1 << OTAPDLYENA_SHIFT) | (plat->otap_del_sel << OTAPDLYSEL_SHIFT); - regmap_update_bits(plat->base, PHY_CTRL4, mask, val); - switch (speed) { - case 200000000: - sel50 = 0; - sel100 = 0; - break; - case 100000000: - sel50 = 0; - sel100 = 1; - break; - default: - sel50 = 1; - sel100 = 0; + + /* Write to STRBSEL for HS400 speed mode */ + if (host->mmc->selected_mode == MMC_HS_400) { + if (plat->flags & STRBSEL_4_BIT) + mask |= STRBSEL_4BIT_MASK; + else + mask |= STRBSEL_8BIT_MASK; + + val |= plat->strb_sel << STRBSEL_SHIFT; } - /* Configure PHY DLL frequency */ - mask = SEL50_MASK | SEL100_MASK; - val = (sel50 << SEL50_SHIFT) | (sel100 << SEL100_SHIFT); - regmap_update_bits(plat->base, PHY_CTRL5, mask, val); + regmap_update_bits(plat->base, PHY_CTRL4, mask, val); + + if (plat->flags & FREQSEL_2_BIT) { + switch (speed) { + case 200000000: + sel50 = 0; + sel100 = 0; + break; + case 100000000: + sel50 = 0; + sel100 = 1; + break; + default: + sel50 = 1; + sel100 = 0; + } + + /* Configure PHY DLL frequency */ + mask = SEL50_MASK | SEL100_MASK; + val = (sel50 << SEL50_SHIFT) | (sel100 << SEL100_SHIFT); + regmap_update_bits(plat->base, PHY_CTRL5, mask, val); + } else { + switch (speed) { + case 200000000: + freqsel = 0x0; + break; + default: + freqsel = 0x4; + } + regmap_update_bits(plat->base, PHY_CTRL5, FREQSEL_MASK, + freqsel << FREQSEL_SHIFT); + } /* Enable DLL */ regmap_update_bits(plat->base, PHY_CTRL1, ENDLL_MASK, @@ -164,8 +200,37 @@ const struct sdhci_ops am654_sdhci_ops = { .set_control_reg = &am654_sdhci_set_control_reg, }; +const struct am654_driver_data am654_drv_data = { + .ops = &am654_sdhci_ops, + .flags = IOMUX_PRESENT | FREQSEL_2_BIT | DLL_PRESENT | STRBSEL_4_BIT, +}; + +const struct am654_driver_data j721e_8bit_drv_data = { + .ops = &am654_sdhci_ops, + .flags = DLL_PRESENT, +}; + +static int j721e_4bit_sdhci_set_ios_post(struct sdhci_host *host) +{ + struct udevice *dev = host->mmc->dev; + struct am654_sdhci_plat *plat = dev_get_platdata(dev); + u32 mask, val; + + mask = OTAPDLYENA_MASK | OTAPDLYSEL_MASK; + val = (1 << OTAPDLYENA_SHIFT) | + (plat->otap_del_sel << OTAPDLYSEL_SHIFT); + regmap_update_bits(plat->base, PHY_CTRL4, mask, val); + + return 0; +} + const struct sdhci_ops j721e_4bit_sdhci_ops = { - .set_control_reg = &am654_sdhci_set_control_reg, + .set_ios_post = &j721e_4bit_sdhci_set_ios_post, +}; + +const struct am654_driver_data j721e_4bit_drv_data = { + .ops = &j721e_4bit_sdhci_ops, + .flags = IOMUX_PRESENT, }; int am654_sdhci_init(struct am654_sdhci_plat *plat) @@ -202,7 +267,8 @@ int am654_sdhci_init(struct am654_sdhci_plat *plat) } /* Enable pins by setting IO mux to 0 */ - regmap_update_bits(plat->base, PHY_CTRL1, IOMUX_ENABLE_MASK, 0); + if (plat->flags & IOMUX_PRESENT) + regmap_update_bits(plat->base, PHY_CTRL1, IOMUX_ENABLE_MASK, 0); /* Set slot type based on SD or eMMC */ if (plat->non_removable) @@ -215,6 +281,8 @@ int am654_sdhci_init(struct am654_sdhci_plat *plat) static int am654_sdhci_probe(struct udevice *dev) { + struct am654_driver_data *drv_data = + (struct am654_driver_data *)dev_get_driver_data(dev); struct am654_sdhci_plat *plat = dev_get_platdata(dev); struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); struct sdhci_host *host = dev_get_priv(dev); @@ -223,7 +291,7 @@ static int am654_sdhci_probe(struct udevice *dev) unsigned long clock; int ret; - ret = clk_get_by_index(dev, 0, &clk); + ret = clk_get_by_name(dev, "clk_xin", &clk); if (ret) { dev_err(dev, "failed to get clock\n"); return ret; @@ -242,7 +310,8 @@ static int am654_sdhci_probe(struct udevice *dev) AM654_SDHCI_MIN_FREQ); if (ret) return ret; - host->ops = (struct sdhci_ops *)dev_get_driver_data(dev); + + host->ops = drv_data->ops; host->mmc->priv = host; upriv->mmc = host->mmc; @@ -265,10 +334,6 @@ static int am654_sdhci_ofdata_to_platdata(struct udevice *dev) host->ioaddr = (void *)dev_read_addr(dev); plat->non_removable = dev_read_bool(dev, "non-removable"); - if (device_is_compatible(dev, "ti,am654-sdhci-5.1") || - device_is_compatible(dev, "ti,j721e-sdhci-8bit")) - plat->flags |= DLL_PRESENT; - ret = dev_read_u32(dev, "ti,otap-del-sel", &plat->otap_del_sel); if (ret) return ret; @@ -314,23 +379,27 @@ static int am654_sdhci_ofdata_to_platdata(struct udevice *dev) static int am654_sdhci_bind(struct udevice *dev) { + struct am654_driver_data *drv_data = + (struct am654_driver_data *)dev_get_driver_data(dev); struct am654_sdhci_plat *plat = dev_get_platdata(dev); + plat->flags = drv_data->flags; + return sdhci_bind(dev, &plat->mmc, &plat->cfg); } static const struct udevice_id am654_sdhci_ids[] = { { .compatible = "ti,am654-sdhci-5.1", - .data = (ulong)&am654_sdhci_ops, + .data = (ulong)&am654_drv_data, }, { .compatible = "ti,j721e-sdhci-8bit", - .data = (ulong)&am654_sdhci_ops, + .data = (ulong)&j721e_8bit_drv_data, }, { .compatible = "ti,j721e-sdhci-4bit", - .data = (ulong)&j721e_4bit_sdhci_ops, + .data = (ulong)&j721e_4bit_drv_data, }, { } }; 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