From 9f678ab139cd6ef0ab98759d63f1cee0fa534b66 Mon Sep 17 00:00:00 2001 From: Rick Chen Date: Tue, 14 Nov 2017 14:47:09 +0800 Subject: [PATCH] nds32: mmc: Support ftsdc010 DM. Add nds32_mmc to support ftsdc010 dm flow. Signed-off-by: Rick Chen --- drivers/mmc/Kconfig | 12 +++++ drivers/mmc/Makefile | 1 + drivers/mmc/nds32_mmc.c | 136 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 149 insertions(+) create mode 100644 drivers/mmc/nds32_mmc.c diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 62ce0af..8fbeaa7 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -401,6 +401,18 @@ config STM32_SDMMC2 If you have a board based on such a SoC and with a SD/MMC slot, say Y or M here. +config MMC_NDS32 + bool "Andestech SD/MMC controller support" + depends on DM_MMC && OF_CONTROL && BLK && FTSDC010 + help + This enables support for the Andestech SD/MMM controller, which is + based on Faraday IP. + +config FTSDC010 + bool "Ftsdc010 SD/MMC controller Support" + help + This SD/MMC controller is present in Andestech SoCs which is based on Faraday IP. + endif config TEGRA124_MMC_DISABLE_EXT_LOOPBACK diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index d505f37..9af375b 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_MMC_SANDBOX) += sandbox_mmc.o obj-$(CONFIG_SH_MMCIF) += sh_mmcif.o obj-$(CONFIG_SH_SDHI) += sh_sdhi.o obj-$(CONFIG_STM32_SDMMC2) += stm32_sdmmc2.o +obj-$(CONFIG_MMC_NDS32) += nds32_mmc.o # SDHCI obj-$(CONFIG_MMC_SDHCI) += sdhci.o diff --git a/drivers/mmc/nds32_mmc.c b/drivers/mmc/nds32_mmc.c new file mode 100644 index 0000000..6d3c857 --- /dev/null +++ b/drivers/mmc/nds32_mmc.c @@ -0,0 +1,136 @@ +/* + * Andestech ATFSDC010 SD/MMC driver + * + * (C) Copyright 2017 + * Rick Chen, NDS32 Software Engineering, rick@andestech.com + + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "ftsdc010_mci.h" + +DECLARE_GLOBAL_DATA_PTR; + +#if CONFIG_IS_ENABLED(OF_PLATDATA) +struct nds_mmc { + fdt32_t bus_width; + bool cap_mmc_highspeed; + bool cap_sd_highspeed; + fdt32_t clock_freq_min_max[2]; + struct phandle_2_cell clocks[4]; + fdt32_t fifo_depth; + fdt32_t reg[2]; +}; +#endif + +struct nds_mmc_plat { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct nds_mmc dtplat; +#endif + struct mmc_config cfg; + struct mmc mmc; +}; + +struct ftsdc_priv { + struct clk clk; + struct ftsdc010_chip chip; + int fifo_depth; + bool fifo_mode; + u32 minmax[2]; +}; + +static int nds32_mmc_ofdata_to_platdata(struct udevice *dev) +{ +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct ftsdc_priv *priv = dev_get_priv(dev); + struct ftsdc010_chip *chip = &priv->chip; + chip->name = dev->name; + chip->ioaddr = (void *)devfdt_get_addr(dev); + chip->buswidth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), + "bus-width", 4); + chip->priv = dev; + priv->fifo_depth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), + "fifo-depth", 0); + priv->fifo_mode = fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev), + "fifo-mode"); + if (fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev), + "clock-freq-min-max", priv->minmax, 2)) { + int val = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), + "max-frequency", -EINVAL); + if (val < 0) + return val; + + priv->minmax[0] = 400000; /* 400 kHz */ + priv->minmax[1] = val; + } else { + debug("%s: 'clock-freq-min-max' property was deprecated.\n", + __func__); + } +#endif + chip->sclk = priv->minmax[1]; + chip->regs = chip->ioaddr; + return 0; +} + +static int nds32_mmc_probe(struct udevice *dev) +{ + struct nds_mmc_plat *plat = dev_get_platdata(dev); + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); + struct ftsdc_priv *priv = dev_get_priv(dev); + struct ftsdc010_chip *chip = &priv->chip; + struct udevice *pwr_dev __maybe_unused; +#if CONFIG_IS_ENABLED(OF_PLATDATA) + int ret; + struct nds_mmc *dtplat = &plat->dtplat; + chip->name = dev->name; + chip->ioaddr = map_sysmem(dtplat->reg[0], dtplat->reg[1]); + chip->buswidth = dtplat->bus_width; + chip->priv = dev; + chip->dev_index = 1; + memcpy(priv->minmax, dtplat->clock_freq_min_max, sizeof(priv->minmax)); + ret = clk_get_by_index_platdata(dev, 0, dtplat->clocks, &priv->clk); + if (ret < 0) + return ret; +#endif + ftsdc_setup_cfg(&plat->cfg, dev->name, chip->buswidth, chip->caps, + priv->minmax[1] , priv->minmax[0]); + chip->mmc = &plat->mmc; + chip->mmc->priv = &priv->chip; + chip->mmc->dev = dev; + upriv->mmc = chip->mmc; + return ftsdc010_probe(dev); +} + +static int nds32_mmc_bind(struct udevice *dev) +{ + struct nds_mmc_plat *plat = dev_get_platdata(dev); + return ftsdc010_bind(dev, &plat->mmc, &plat->cfg); +} + +static const struct udevice_id nds32_mmc_ids[] = { + { .compatible = "andestech,atsdc010" }, + { } +}; + +U_BOOT_DRIVER(nds32_mmc_drv) = { + .name = "nds32_mmc", + .id = UCLASS_MMC, + .of_match = nds32_mmc_ids, + .ofdata_to_platdata = nds32_mmc_ofdata_to_platdata, + .ops = &dm_ftsdc010_ops, + .bind = nds32_mmc_bind, + .probe = nds32_mmc_probe, + .priv_auto_alloc_size = sizeof(struct ftsdc_priv), + .platdata_auto_alloc_size = sizeof(struct nds_mmc_plat), +};