diff options
| author | Jaehoon Chung <jh80.chung@samsung.com> | 2016-09-09 18:23:23 +0900 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2016-10-10 15:23:32 +0900 |
| commit | 7aedafd6b374b9c052474dc248fa7173c5c048a2 (patch) | |
| tree | 04072308d3d34abab78583f02899bd64f3eee866 /drivers/mmc | |
| parent | f5fd45ff64e28a73499548358e3d1ceda0de7daf (diff) | |
mmc: s5p_sdhci: support the Driver model for Exynos
This patch support the driver model for s5p_sdhci controller.
To support the legacy model, maintained the existing code.
Note: If use the Driver Model, it needs to modify the device-tree.
In future, will update the Device-tree and enable the configuratioin.
(CONFIG_BLK, CONFIG_DM_MMC and CONFING_DM_MMC_OPS)
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/s5p_sdhci.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c index 3bace21a04..0d65783b2c 100644 --- a/drivers/mmc/s5p_sdhci.c +++ b/drivers/mmc/s5p_sdhci.c @@ -6,6 +6,7 @@ */ #include <common.h> +#include <dm.h> #include <malloc.h> #include <sdhci.h> #include <fdtdec.h> @@ -16,6 +17,15 @@ #include <errno.h> #include <asm/arch/pinmux.h> +#ifdef CONFIG_DM_MMC +struct s5p_sdhci_plat { + struct mmc_config cfg; + struct mmc mmc; +}; + +DECLARE_GLOBAL_DATA_PTR; +#endif + static char *S5P_NAME = "SAMSUNG SDHCI"; static void s5p_sdhci_set_control_reg(struct sdhci_host *host) { @@ -79,7 +89,11 @@ static int s5p_sdhci_core_init(struct sdhci_host *host) if (host->bus_width == 8) host->host_caps |= MMC_MODE_8BIT; +#ifndef CONFIG_BLK return add_sdhci(host, 52000000, 400000); +#else + return 0; +#endif } int s5p_sdhci_init(u32 regbase, int index, int bus_width) @@ -215,3 +229,60 @@ int exynos_mmc_init(const void *blob) return process_nodes(blob, node_list, count); } #endif + +#ifdef CONFIG_DM_MMC +static int s5p_sdhci_probe(struct udevice *dev) +{ + struct s5p_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); + int ret; + + ret = sdhci_get_config(gd->fdt_blob, dev->of_offset, host); + if (ret) + return ret; + + ret = do_sdhci_init(host); + if (ret) + return ret; + + ret = sdhci_setup_cfg(&plat->cfg, host, 52000000, 400000); + if (ret) + return ret; + + host->mmc = &plat->mmc; + host->mmc->priv = host; + host->mmc->dev = dev; + upriv->mmc = host->mmc; + + return sdhci_probe(dev); +} + +static int s5p_sdhci_bind(struct udevice *dev) +{ + struct s5p_sdhci_plat *plat = dev_get_platdata(dev); + int ret; + + ret = sdhci_bind(dev, &plat->mmc, &plat->cfg); + if (ret) + return ret; + + return 0; +} + +static const struct udevice_id s5p_sdhci_ids[] = { + { .compatible = "samsung,exynos4412-sdhci"}, + { } +}; + +U_BOOT_DRIVER(s5p_sdhci_drv) = { + .name = "s5p_sdhci", + .id = UCLASS_MMC, + .of_match = s5p_sdhci_ids, + .bind = s5p_sdhci_bind, + .ops = &sdhci_ops, + .probe = s5p_sdhci_probe, + .priv_auto_alloc_size = sizeof(struct sdhci_host), + .platdata_auto_alloc_size = sizeof(struct s5p_sdhci_plat), +}; +#endif /* CONFIG_DM_MMC */ |