diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mmc/omap_hsmmc.c | 117 |
1 files changed, 116 insertions, 1 deletions
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index 5b74a5a..5038a9f 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -37,6 +37,9 @@ #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)) || \ @@ -54,9 +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 */ @@ -66,7 +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; @@ -602,6 +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; @@ -630,6 +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, @@ -641,6 +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) { @@ -727,3 +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 |