From: Jassi Brar jaswinder.singh@linaro.org
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 --- Changes in v4: - Add Jaehoon's reviewed-by. Changes in v3: - Rename config name to MMC_SDHCI_F_SDH30. - Remove unneeded wait in drivers/mmc/sdhci.c. - Rename probe function to f_sdh30_sdhci_probe. --- drivers/mmc/Kconfig | 10 ++++++ drivers/mmc/Makefile | 1 + drivers/mmc/f_sdh30.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 92 insertions(+) create mode 100644 drivers/mmc/f_sdh30.c
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 8901456967..1c5aecfa5c 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -561,6 +561,16 @@ config MMC_SDHCI_IPROC
If unsure, say N.
+config MMC_SDHCI_F_SDH30 + bool "SDHCI support for Fujitsu Semiconductor F_SDH30" + depends on BLK && DM_MMC + depends on MMC_SDHCI + help + This selects the Secure Digital Host Controller Interface (SDHCI) + Needed by some Fujitsu SoC for MMC / SD / SDIO support. + If you have a controller with this interface, say Y or M here. + If unsure, say N. + config MMC_SDHCI_KONA bool "SDHCI support on Broadcom KONA platform" depends on MMC_SDHCI diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 89d6af3db3..f5fd59093e 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -76,3 +76,4 @@ obj-$(CONFIG_MMC_UNIPHIER) += tmio-common.o uniphier-sd.o obj-$(CONFIG_RENESAS_SDHI) += tmio-common.o renesas-sdhi.o obj-$(CONFIG_MMC_BCM2835) += bcm2835_sdhost.o obj-$(CONFIG_MMC_MTK) += mtk-sd.o +obj-$(CONFIG_MMC_SDHCI_F_SDH30) += f_sdh30.o 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), +};