diff options
author | Jassi Brar <jaswinder.singh@linaro.org> | 2021-06-04 12:44:16 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2021-07-06 21:07:36 +0300 |
commit | dadd43c143685a6ed7d9a14575e14dba34d77160 (patch) | |
tree | 2414b13d8103d598b75d9ea6607086f650d8dda7 /drivers/mmc/f_sdh30.c | |
parent | 3296d52bb5d32000da308658c396e8e4975e18a6 (diff) | |
download | u-boot-dadd43c143685a6ed7d9a14575e14dba34d77160.tar.xz |
mmc: synquacer: Add SynQuacer F_SDH30 SDHCI driver
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'drivers/mmc/f_sdh30.c')
-rw-r--r-- | drivers/mmc/f_sdh30.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/mmc/f_sdh30.c b/drivers/mmc/f_sdh30.c new file mode 100644 index 0000000000..3a85d9e348 --- /dev/null +++ b/drivers/mmc/f_sdh30.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Socionext F_SDH30 eMMC driver + * Copyright 2021 Linaro Ltd. + * Copyright 2021 Socionext, Inc. + */ + +#include <common.h> +#include <clk.h> +#include <dm.h> +#include <malloc.h> +#include <sdhci.h> + +struct f_sdh30_plat { + struct mmc_config cfg; + struct mmc mmc; +}; + +DECLARE_GLOBAL_DATA_PTR; + +static int f_sdh30_sdhci_probe(struct udevice *dev) +{ + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); + struct f_sdh30_plat *plat = dev_get_plat(dev); + struct sdhci_host *host = dev_get_priv(dev); + int ret; + + ret = mmc_of_parse(dev, &plat->cfg); + if (ret) + return ret; + + host->mmc = &plat->mmc; + host->mmc->dev = dev; + host->mmc->priv = host; + + ret = sdhci_setup_cfg(&plat->cfg, host, 200000000, 400000); + if (ret) + return ret; + + upriv->mmc = host->mmc; + + mmc_set_clock(host->mmc, host->mmc->cfg->f_min, MMC_CLK_ENABLE); + + return sdhci_probe(dev); +} + +static int f_sdh30_of_to_plat(struct udevice *dev) +{ + struct sdhci_host *host = dev_get_priv(dev); + + host->name = strdup(dev->name); + host->ioaddr = dev_read_addr_ptr(dev); + host->bus_width = dev_read_u32_default(dev, "bus-width", 4); + host->index = dev_read_u32_default(dev, "index", 0); + + return 0; +} + +static int f_sdh30_bind(struct udevice *dev) +{ + struct f_sdh30_plat *plat = dev_get_plat(dev); + + return sdhci_bind(dev, &plat->mmc, &plat->cfg); +} + +static const struct udevice_id f_sdh30_mmc_ids[] = { + { .compatible = "fujitsu,mb86s70-sdhci-3.0" }, + { } +}; + +U_BOOT_DRIVER(f_sdh30_drv) = { + .name = "f_sdh30_sdhci", + .id = UCLASS_MMC, + .of_match = f_sdh30_mmc_ids, + .of_to_plat = f_sdh30_of_to_plat, + .ops = &sdhci_ops, + .bind = f_sdh30_bind, + .probe = f_sdh30_sdhci_probe, + .priv_auto = sizeof(struct sdhci_host), + .plat_auto = sizeof(struct f_sdh30_plat), +}; |