diff options
author | Stefano Babic <sbabic@denx.de> | 2015-10-23 12:35:42 +0200 |
---|---|---|
committer | Stefano Babic <sbabic@denx.de> | 2015-10-23 12:35:42 +0200 |
commit | a69fdc7787bfa2f27eed74c2ee58c28ce932d502 (patch) | |
tree | 4731dbe1c7371c0c797641d9e755a93e614ec930 /drivers/mmc/omap_hsmmc.c | |
parent | 42e550d44bc2335a18065b155cc408f30f0502ef (diff) | |
parent | 9f13b6d147dc74f2400ce18d9d4005ba53f21fd3 (diff) |
Merge branch 'master' of git://git.denx.de/u-boot
Diffstat (limited to 'drivers/mmc/omap_hsmmc.c')
-rw-r--r-- | drivers/mmc/omap_hsmmc.c | 124 |
1 files changed, 121 insertions, 3 deletions
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index d7b388f3f4..5038a9f55f 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -31,10 +31,15 @@ #include <twl4030.h> #include <twl6030.h> #include <palmas.h> -#include <asm/gpio.h> #include <asm/io.h> #include <asm/arch/mmc_host_def.h> +#if !defined(CONFIG_SOC_KEYSTONE) +#include <asm/gpio.h> #include <asm/arch/sys_proto.h> +#endif +#include <dm.h> + +DECLARE_GLOBAL_DATA_PTR; /* simplify defines to OMAP_HSMMC_USE_GPIO */ #if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \ @@ -52,9 +57,15 @@ 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 */ @@ -64,7 +75,7 @@ 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); -#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) { int ret; @@ -600,6 +611,34 @@ 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; @@ -628,6 +667,7 @@ static int omap_hsmmc_getwp(struct mmc *mmc) return gpio_get_value(wp_gpio); } #endif +#endif static const struct mmc_ops omap_hsmmc_ops = { .send_cmd = omap_hsmmc_send_cmd, @@ -639,6 +679,7 @@ 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) { @@ -662,7 +703,8 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, priv_data->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE; #if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) || \ - defined(CONFIG_AM43XX)) && defined(CONFIG_HSMMC2_8BIT) + 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 @@ -724,3 +766,79 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, 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 = (struct hsmmc *)dev_get_addr(dev); + 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; + + 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 |