On 5/24/22 17:55, Jim Liu wrote:
Add Nuvoton BMC NPCM750 mmc control driver.
Signed-off-by: Jim Liu JJLIU0@nuvoton.com
Reviewed-by: Jaehoon Chung jh80.chung@samsung.com
Best Regards, Jaehoon Chung
Changes for v2:
- modify kconfig description
- use mmc_of_parse
- modify U_BOOT_DRIVER and Copyright time
drivers/mmc/Kconfig | 12 ++++++ drivers/mmc/Makefile | 1 + drivers/mmc/npcm_sdhci.c | 86 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 99 insertions(+) create mode 100644 drivers/mmc/npcm_sdhci.c
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index f04cc44e19..f6a1eb2ac5 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -607,6 +607,18 @@ config MMC_SDHCI_MV
If unsure, say N.+config MMC_SDHCI_NPCM
- bool "SDHCI support on Nuvoton NPCM device"
- depends on MMC_SDHCI
- depends on DM_MMC
- help
This selects the Secure Digital Host Controller Interface (SDHCI)on Nuvoton NPCM device.If you have a controller with this interface, say Y here.If unsure, say N.config MMC_SDHCI_PIC32 bool "Microchip PIC32 on-chip SDHCI support" depends on DM_MMC && MACH_PIC32 diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 9627509302..280da24567 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -67,6 +67,7 @@ obj-$(CONFIG_MMC_SDHCI_IPROC) += iproc_sdhci.o obj-$(CONFIG_MMC_SDHCI_KONA) += kona_sdhci.o obj-$(CONFIG_MMC_SDHCI_MSM) += msm_sdhci.o obj-$(CONFIG_MMC_SDHCI_MV) += mv_sdhci.o +obj-$(CONFIG_MMC_SDHCI_NPCM) += npcm_sdhci.o obj-$(CONFIG_MMC_SDHCI_PIC32) += pic32_sdhci.o obj-$(CONFIG_MMC_SDHCI_ROCKCHIP) += rockchip_sdhci.o obj-$(CONFIG_MMC_SDHCI_S5P) += s5p_sdhci.o diff --git a/drivers/mmc/npcm_sdhci.c b/drivers/mmc/npcm_sdhci.c new file mode 100644 index 0000000000..7eb17cce0b --- /dev/null +++ b/drivers/mmc/npcm_sdhci.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0+ +/*
- Copyright (c) 2022 Nuvoton Technology Corp.
- */
+#include <common.h> +#include <dm.h> +#include <sdhci.h> +#include <clk.h> +#include <power/regulator.h>
+#define NPCM_SDHC_MIN_FREQ 400000
+struct npcm_sdhci_plat {
- struct mmc_config cfg;
- struct mmc mmc;
+};
+static int npcm_sdhci_probe(struct udevice *dev) +{
- struct npcm_sdhci_plat *plat = dev_get_plat(dev);
- struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
- struct sdhci_host *host = dev_get_priv(dev);
- struct udevice *vqmmc_supply;
- int vqmmc_uv, ret;
- struct clk clk;
- host->name = dev->name;
- host->ioaddr = dev_read_addr_ptr(dev);
- host->max_clk = dev_read_u32_default(dev, "clock-frequency", 0);
- ret = clk_get_by_index(dev, 0, &clk);
- if (!ret && host->max_clk) {
ret = clk_set_rate(&clk, host->max_clk);if (ret < 0)return ret;- }
- if (IS_ENABLED(CONFIG_DM_REGULATOR)) {
device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_supply);vqmmc_uv = dev_read_u32_default(dev, "vqmmc-microvolt", 0);/* Set IO voltage */if (vqmmc_supply && vqmmc_uv)regulator_set_value(vqmmc_supply, vqmmc_uv);- }
- host->index = dev_read_u32_default(dev, "index", 0);
- ret = mmc_of_parse(dev, &plat->cfg);
- if (ret)
return ret;- host->mmc = &plat->mmc;
- host->mmc->priv = host;
- host->mmc->dev = dev;
- upriv->mmc = host->mmc;
- ret = sdhci_setup_cfg(&plat->cfg, host, 0, NPCM_SDHC_MIN_FREQ);
- if (ret)
return ret;- return sdhci_probe(dev);
+}
+static int npcm_sdhci_bind(struct udevice *dev) +{
- struct npcm_sdhci_plat *plat = dev_get_plat(dev);
- return sdhci_bind(dev, &plat->mmc, &plat->cfg);
+}
+static const struct udevice_id npcm_mmc_ids[] = {
- { .compatible = "nuvoton,npcm750-sdhci" },
- { .compatible = "nuvoton,npcm845-sdhci" },
- { }
+};
+U_BOOT_DRIVER(npcm_sdhci_drv) = {
- .name = "npcm_sdhci",
- .id = UCLASS_MMC,
- .of_match = npcm_mmc_ids,
- .ops = &sdhci_ops,
- .bind = npcm_sdhci_bind,
- .probe = npcm_sdhci_probe,
- .priv_auto = sizeof(struct sdhci_host),
- .plat_auto = sizeof(struct npcm_sdhci_plat),
+};