X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fmmc%2Fomap_hsmmc.c;h=be34057ea2cef9108cd842c7237fc70726d853a8;hb=e98dd20ccec30311dddd165f945c7ce0dedef6db;hp=6bf602fea59401559a1ee93a361b137a3807a483;hpb=ab769f227f79bedae7840f99b6c0c4d66aafc78e;p=u-boot diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index 6bf602fea5..be34057ea2 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -24,16 +24,22 @@ #include #include +#include #include #include #include #include #include #include -#include #include #include +#if !defined(CONFIG_SOC_KEYSTONE) +#include #include +#endif +#include + +DECLARE_GLOBAL_DATA_PTR; /* simplify defines to OMAP_HSMMC_USE_GPIO */ #if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \ @@ -49,10 +55,17 @@ struct omap_hsmmc_data { struct hsmmc *base_addr; + struct mmc_config cfg; #ifdef OMAP_HSMMC_USE_GPIO +#ifdef CONFIG_DM_MMC + struct gpio_desc cd_gpio; /* Change Detect GPIO */ + struct gpio_desc wp_gpio; /* Write Protect GPIO */ + bool cd_inverted; +#else int cd_gpio; int wp_gpio; #endif +#endif }; /* If we fail after 1 second wait, something is really bad */ @@ -61,26 +74,29 @@ struct omap_hsmmc_data { static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size); static int mmc_write_data(struct hsmmc *mmc_base, const char *buf, unsigned int siz); -static struct mmc hsmmc_dev[3]; -static struct omap_hsmmc_data hsmmc_dev_data[3]; -#ifdef OMAP_HSMMC_USE_GPIO +#if defined(OMAP_HSMMC_USE_GPIO) && !defined(CONFIG_DM_MMC) static int omap_mmc_setup_gpio_in(int gpio, const char *label) { - if (!gpio_is_valid(gpio)) - return -1; + int ret; - if (gpio_request(gpio, label) < 0) +#ifndef CONFIG_DM_GPIO + if (!gpio_is_valid(gpio)) return -1; +#endif + ret = gpio_request(gpio, label); + if (ret) + return ret; - if (gpio_direction_input(gpio) < 0) - return -1; + ret = gpio_direction_input(gpio); + if (ret) + return ret; return gpio; } #endif -#if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER) +#if defined(CONFIG_OMAP44XX) static void omap4_vmmc_pbias_config(struct mmc *mmc) { u32 value = 0; @@ -88,8 +104,6 @@ static void omap4_vmmc_pbias_config(struct mmc *mmc) value = readl((*ctrl)->control_pbiaslite); value &= ~(MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ); writel(value, (*ctrl)->control_pbiaslite); - /* set VMMC to 3V */ - twl6030_power_mmc_init(); value = readl((*ctrl)->control_pbiaslite); value |= MMC1_PBIASLITE_VMODE | MMC1_PBIASLITE_PWRDNZ | MMC1_PWRDNZ; writel(value, (*ctrl)->control_pbiaslite); @@ -120,7 +134,7 @@ static void omap5_pbias_config(struct mmc *mmc) } #endif -unsigned char mmc_board_init(struct mmc *mmc) +static unsigned char mmc_board_init(struct mmc *mmc) { #if defined(CONFIG_OMAP34XX) t2_t *t2_base = (t2_t *)T2_BASE; @@ -129,13 +143,12 @@ unsigned char mmc_board_init(struct mmc *mmc) pbias_lite = readl(&t2_base->pbias_lite); pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0); - writel(pbias_lite, &t2_base->pbias_lite); +#ifdef CONFIG_TARGET_OMAP3_CAIRO + /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */ + pbias_lite &= ~PBIASLITEVMODE0; #endif -#if defined(CONFIG_TWL4030_POWER) - twl4030_power_mmc_init(); - mdelay(100); /* ramp-up delay from Linux code */ -#endif -#if defined(CONFIG_OMAP34XX) + writel(pbias_lite, &t2_base->pbias_lite); + writel(pbias_lite | PBIASLITEPWRDNZ1 | PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0, &t2_base->pbias_lite); @@ -147,7 +160,7 @@ unsigned char mmc_board_init(struct mmc *mmc) &t2_base->devconf1); /* Change from default of 52MHz to 26MHz if necessary */ - if (!(mmc->host_caps & MMC_MODE_HS_52MHz)) + if (!(mmc->cfg->host_caps & MMC_MODE_HS_52MHz)) writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL, &t2_base->ctl_prog_io1); @@ -160,13 +173,13 @@ unsigned char mmc_board_init(struct mmc *mmc) &prcm_base->iclken1_core); #endif -#if defined(CONFIG_OMAP44XX) && defined(CONFIG_TWL6030_POWER) +#if defined(CONFIG_OMAP44XX) /* PBIAS config needed for MMC1 only */ - if (mmc->block_dev.dev == 0) + if (mmc->block_dev.devnum == 0) omap4_vmmc_pbias_config(mmc); #endif #if defined(CONFIG_OMAP54XX) && defined(CONFIG_PALMAS_POWER) - if (mmc->block_dev.dev == 0) + if (mmc->block_dev.devnum == 0) omap5_pbias_config(mmc); #endif @@ -292,7 +305,7 @@ static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit) * (reset procedure is completed). */ #if defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ - defined(CONFIG_AM33XX) + defined(CONFIG_AM33XX) || defined(CONFIG_AM43XX) if (!(readl(&mmc_base->sysctl) & bit)) { start = get_timer(0); while (!(readl(&mmc_base->sysctl) & bit)) { @@ -596,6 +609,34 @@ static void omap_hsmmc_set_ios(struct mmc *mmc) } #ifdef OMAP_HSMMC_USE_GPIO +#ifdef CONFIG_DM_MMC +static int omap_hsmmc_getcd(struct mmc *mmc) +{ + struct omap_hsmmc_data *priv = mmc->priv; + int value; + + value = dm_gpio_get_value(&priv->cd_gpio); + /* if no CD return as 1 */ + if (value < 0) + return 1; + + if (priv->cd_inverted) + return !value; + return value; +} + +static int omap_hsmmc_getwp(struct mmc *mmc) +{ + struct omap_hsmmc_data *priv = mmc->priv; + int value; + + value = dm_gpio_get_value(&priv->wp_gpio); + /* if no WP return as 0 */ + if (value < 0) + return 0; + return value; +} +#else static int omap_hsmmc_getcd(struct mmc *mmc) { struct omap_hsmmc_data *priv_data = mmc->priv; @@ -606,7 +647,8 @@ static int omap_hsmmc_getcd(struct mmc *mmc) if (cd_gpio < 0) return 1; - return gpio_get_value(cd_gpio); + /* NOTE: assumes card detect signal is active-low */ + return !gpio_get_value(cd_gpio); } static int omap_hsmmc_getwp(struct mmc *mmc) @@ -619,9 +661,11 @@ static int omap_hsmmc_getwp(struct mmc *mmc) if (wp_gpio < 0) return 0; + /* NOTE: assumes write protect signal is active-high */ return gpio_get_value(wp_gpio); } #endif +#endif static const struct mmc_ops omap_hsmmc_ops = { .send_cmd = omap_hsmmc_send_cmd, @@ -633,17 +677,20 @@ static const struct mmc_ops omap_hsmmc_ops = { #endif }; +#ifndef CONFIG_DM_MMC int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, int wp_gpio) { - struct mmc *mmc = &hsmmc_dev[dev_index]; - struct omap_hsmmc_data *priv_data = &hsmmc_dev_data[dev_index]; - uint host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS | - MMC_MODE_HC; + struct mmc *mmc; + struct omap_hsmmc_data *priv_data; + struct mmc_config *cfg; + uint host_caps_val; - sprintf(mmc->name, "OMAP SD/MMC"); - mmc->ops = &omap_hsmmc_ops; - mmc->priv = priv_data; + priv_data = malloc(sizeof(*priv_data)); + if (priv_data == NULL) + return -1; + + host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS; switch (dev_index) { case 0: @@ -653,7 +700,9 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, case 1: priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE; #if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ - defined(CONFIG_DRA7XX)) && defined(CONFIG_HSMMC2_8BIT) + defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) || \ + defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \ + defined(CONFIG_HSMMC2_8BIT) /* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */ host_caps_val |= MMC_MODE_8BIT; #endif @@ -662,7 +711,7 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, #ifdef OMAP_HSMMC3_BASE case 2: priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE; -#if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT) +#if (defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)) && defined(CONFIG_HSMMC3_8BIT) /* Enable 8-bit interface for eMMC on DRA7XX */ host_caps_val |= MMC_MODE_8BIT; #endif @@ -678,34 +727,123 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, priv_data->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp"); #endif - mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; - mmc->host_caps = host_caps_val & ~host_caps_mask; + cfg = &priv_data->cfg; + + cfg->name = "OMAP SD/MMC"; + cfg->ops = &omap_hsmmc_ops; - mmc->f_min = 400000; + cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; + cfg->host_caps = host_caps_val & ~host_caps_mask; + + cfg->f_min = 400000; if (f_max != 0) - mmc->f_max = f_max; + cfg->f_max = f_max; else { - if (mmc->host_caps & MMC_MODE_HS) { - if (mmc->host_caps & MMC_MODE_HS_52MHz) - mmc->f_max = 52000000; + if (cfg->host_caps & MMC_MODE_HS) { + if (cfg->host_caps & MMC_MODE_HS_52MHz) + cfg->f_max = 52000000; else - mmc->f_max = 26000000; + cfg->f_max = 26000000; } else - mmc->f_max = 20000000; + cfg->f_max = 20000000; } - mmc->b_max = 0; + cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; #if defined(CONFIG_OMAP34XX) /* * Silicon revs 2.1 and older do not support multiblock transfers. */ if ((get_cpu_family() == CPU_OMAP34XX) && (get_cpu_rev() <= CPU_3XX_ES21)) - mmc->b_max = 1; + cfg->b_max = 1; #endif + mmc = mmc_create(cfg, priv_data); + if (mmc == NULL) + return -1; - mmc_register(mmc); + return 0; +} +#else +static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev) +{ + struct omap_hsmmc_data *priv = dev_get_priv(dev); + const void *fdt = gd->fdt_blob; + int node = dev->of_offset; + struct mmc_config *cfg; + int val; + + priv->base_addr = map_physmem(dev_get_addr(dev), sizeof(struct hsmmc *), + MAP_NOCACHE); + cfg = &priv->cfg; + + cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS; + val = fdtdec_get_int(fdt, node, "bus-width", -1); + if (val < 0) { + printf("error: bus-width property missing\n"); + return -ENOENT; + } + + switch (val) { + case 0x8: + cfg->host_caps |= MMC_MODE_8BIT; + case 0x4: + cfg->host_caps |= MMC_MODE_4BIT; + break; + default: + printf("error: invalid bus-width property\n"); + return -ENOENT; + } + + cfg->f_min = 400000; + cfg->f_max = fdtdec_get_int(fdt, node, "max-frequency", 52000000); + cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; + cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; + + priv->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted"); return 0; } + +static int omap_hsmmc_probe(struct udevice *dev) +{ + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); + struct omap_hsmmc_data *priv = dev_get_priv(dev); + struct mmc_config *cfg; + struct mmc *mmc; + + cfg = &priv->cfg; + cfg->name = "OMAP SD/MMC"; + cfg->ops = &omap_hsmmc_ops; + + mmc = mmc_create(cfg, priv); + if (mmc == NULL) + return -1; + +#ifdef OMAP_HSMMC_USE_GPIO + gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN); + gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN); +#endif + + mmc->dev = dev; + upriv->mmc = mmc; + + return 0; +} + +static const struct udevice_id omap_hsmmc_ids[] = { + { .compatible = "ti,omap3-hsmmc" }, + { .compatible = "ti,omap4-hsmmc" }, + { .compatible = "ti,am33xx-hsmmc" }, + { } +}; + +U_BOOT_DRIVER(omap_hsmmc) = { + .name = "omap_hsmmc", + .id = UCLASS_MMC, + .of_match = omap_hsmmc_ids, + .ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata, + .probe = omap_hsmmc_probe, + .priv_auto_alloc_size = sizeof(struct omap_hsmmc_data), +}; +#endif