From 252185f22470d3bf828c7e989dfa06b83bb2e572 Mon Sep 17 00:00:00 2001 From: Rick Chen Date: Mon, 28 Aug 2017 16:44:11 +0800 Subject: [PATCH] nds32: ftsdc010: Support ftsdc010 DM. ftsdc010 support device tree flow. Signed-off-by: Rick Chen --- drivers/mmc/ftsdc010_mci.c | 139 ++++++++++++++++++++++++++++--------- drivers/mmc/ftsdc010_mci.h | 53 ++++++++++++++ 2 files changed, 161 insertions(+), 31 deletions(-) create mode 100644 drivers/mmc/ftsdc010_mci.h diff --git a/drivers/mmc/ftsdc010_mci.c b/drivers/mmc/ftsdc010_mci.c index 652a718467..e044d8516a 100644 --- a/drivers/mmc/ftsdc010_mci.c +++ b/drivers/mmc/ftsdc010_mci.c @@ -12,24 +12,15 @@ #include #include -#include +#include #include #include #include +#include "ftsdc010_mci.h" #define CFG_CMD_TIMEOUT (CONFIG_SYS_HZ >> 4) /* 250 ms */ #define CFG_RST_TIMEOUT CONFIG_SYS_HZ /* 1 sec reset timeout */ -struct ftsdc010_chip { - void __iomem *regs; - uint32_t wprot; /* write protected (locked) */ - uint32_t rate; /* actual SD clock in Hz */ - uint32_t sclk; /* FTSDC010 source clock in Hz */ - uint32_t fifo; /* fifo depth in bytes */ - uint32_t acmd; - struct mmc_config cfg; /* mmc configuration */ -}; - static inline int ftsdc010_send_cmd(struct mmc *mmc, struct mmc_cmd *mmc_cmd) { struct ftsdc010_chip *chip = mmc->priv; @@ -127,9 +118,8 @@ static void ftsdc010_clkset(struct mmc *mmc, uint32_t rate) static int ftsdc010_wait(struct ftsdc010_mmc __iomem *regs, uint32_t mask) { int ret = -ETIMEDOUT; - uint32_t st, ts; - - for (ts = get_timer(0); get_timer(ts) < CFG_CMD_TIMEOUT; ) { + uint32_t st, timeout = 10000000; + while (timeout--) { st = readl(®s->status); if (!(st & mask)) continue; @@ -147,10 +137,16 @@ static int ftsdc010_wait(struct ftsdc010_mmc __iomem *regs, uint32_t mask) /* * u-boot mmc api */ - +#ifdef CONFIG_DM_MMC +static int ftsdc010_request(struct udevice *dev, struct mmc_cmd *cmd, + struct mmc_data *data) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); +#else static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) { +#endif int ret = -EOPNOTSUPP; uint32_t len = 0; struct ftsdc010_chip *chip = mmc->priv; @@ -251,8 +247,14 @@ static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd, return ret; } +#ifdef CONFIG_DM_MMC +static int ftsdc010_set_ios(struct udevice *dev) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); +#else static int ftsdc010_set_ios(struct mmc *mmc) { +#endif struct ftsdc010_chip *chip = mmc->priv; struct ftsdc010_mmc __iomem *regs = chip->regs; @@ -274,20 +276,43 @@ static int ftsdc010_set_ios(struct mmc *mmc) return 0; } -static int ftsdc010_init(struct mmc *mmc) +#ifdef CONFIG_DM_MMC +static int ftsdc010_get_cd(struct udevice *dev) { + struct mmc *mmc = mmc_get_mmc_dev(dev); +#else +static int ftsdc010_get_cd(struct mmc *mmc) +{ +#endif struct ftsdc010_chip *chip = mmc->priv; struct ftsdc010_mmc __iomem *regs = chip->regs; - uint32_t ts; - - if (readl(®s->status) & FTSDC010_STATUS_CARD_DETECT) - return -ENOMEDIUM; + return !(readl(®s->status) & FTSDC010_STATUS_CARD_DETECT); +} +#ifdef CONFIG_DM_MMC +static int ftsdc010_get_wp(struct udevice *dev) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); +#else +static int ftsdc010_get_wp(struct mmc *mmc) +{ +#endif + struct ftsdc010_chip *chip = mmc->priv; + struct ftsdc010_mmc __iomem *regs = chip->regs; if (readl(®s->status) & FTSDC010_STATUS_WRITE_PROT) { printf("ftsdc010: write protected\n"); chip->wprot = 1; } + return 0; +} + +static int ftsdc010_init(struct mmc *mmc) +{ + struct ftsdc010_chip *chip = mmc->priv; + struct ftsdc010_mmc __iomem *regs = chip->regs; + uint32_t ts; + chip->fifo = (readl(®s->feature) & 0xff) << 2; /* 1. chip reset */ @@ -311,11 +336,70 @@ static int ftsdc010_init(struct mmc *mmc) return 0; } +#ifdef CONFIG_DM_MMC +int ftsdc010_probe(struct udevice *dev) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); + return ftsdc010_init(mmc); +} + +const struct dm_mmc_ops dm_ftsdc010_ops = { + .send_cmd = ftsdc010_request, + .set_ios = ftsdc010_set_ios, + .get_cd = ftsdc010_get_cd, + .get_wp = ftsdc010_get_wp, +}; + +#else static const struct mmc_ops ftsdc010_ops = { .send_cmd = ftsdc010_request, .set_ios = ftsdc010_set_ios, + .getcd = ftsdc010_get_cd, + .getwp = ftsdc010_get_wp, .init = ftsdc010_init, }; +#endif + +void ftsdc_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth, + uint caps, u32 max_clk, u32 min_clk) +{ + cfg->name = name; + cfg->f_min = min_clk; + cfg->f_max = max_clk; + cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; + cfg->host_caps = caps; + if (buswidth == 8) { + cfg->host_caps |= MMC_MODE_8BIT; + cfg->host_caps &= ~MMC_MODE_4BIT; + } else { + cfg->host_caps |= MMC_MODE_4BIT; + cfg->host_caps &= ~MMC_MODE_8BIT; + } + cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz; + cfg->part_type = PART_TYPE_DOS; + cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; +} + +void set_bus_width(struct ftsdc010_mmc __iomem *regs, struct mmc_config *cfg) +{ + switch (readl(®s->bwr) & FTSDC010_BWR_CAPS_MASK) { + case FTSDC010_BWR_CAPS_4BIT: + cfg->host_caps |= MMC_MODE_4BIT; + break; + case FTSDC010_BWR_CAPS_8BIT: + cfg->host_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT; + break; + default: + break; + } +} + +#ifdef CONFIG_BLK +int ftsdc010_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg) +{ + return mmc_bind(dev, mmc, cfg); +} +#else int ftsdc010_mmc_init(int devid) { @@ -345,19 +429,11 @@ int ftsdc010_mmc_init(int devid) #endif chip->cfg.name = "ftsdc010"; +#ifndef CONFIG_DM_MMC chip->cfg.ops = &ftsdc010_ops; +#endif chip->cfg.host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz; - switch (readl(®s->bwr) & FTSDC010_BWR_CAPS_MASK) { - case FTSDC010_BWR_CAPS_4BIT: - chip->cfg.host_caps |= MMC_MODE_4BIT; - break; - case FTSDC010_BWR_CAPS_8BIT: - chip->cfg.host_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT; - break; - default: - break; - } - + set_bus_width(regs , &chip->cfg); chip->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34; chip->cfg.f_max = chip->sclk / 2; chip->cfg.f_min = chip->sclk / 0x100; @@ -373,3 +449,4 @@ int ftsdc010_mmc_init(int devid) return 0; } +#endif diff --git a/drivers/mmc/ftsdc010_mci.h b/drivers/mmc/ftsdc010_mci.h new file mode 100644 index 0000000000..31a27fd772 --- /dev/null +++ b/drivers/mmc/ftsdc010_mci.h @@ -0,0 +1,53 @@ +/* + * Faraday FTSDC010 Secure Digital Memory Card Host Controller + * + * Copyright (C) 2011 Andes Technology Corporation + * Macpaul Lin, Andes Technology Corporation + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include + +#ifndef __FTSDC010_MCI_H +#define __FTSDC010_MCI_H + +struct ftsdc010_chip { + void __iomem *regs; + uint32_t wprot; /* write protected (locked) */ + uint32_t rate; /* actual SD clock in Hz */ + uint32_t sclk; /* FTSDC010 source clock in Hz */ + uint32_t fifo; /* fifo depth in bytes */ + uint32_t acmd; + struct mmc_config cfg; /* mmc configuration */ + const char *name; + void *ioaddr; + unsigned int caps; + unsigned int version; + unsigned int clock; + unsigned int bus_hz; + unsigned int div; + int dev_index; + int dev_id; + int buswidth; + u32 fifoth_val; + struct mmc *mmc; + void *priv; + bool fifo_mode; +}; + + +#ifdef CONFIG_DM_MMC +/* Export the operations to drivers */ +int ftsdc010_probe(struct udevice *dev); +extern const struct dm_mmc_ops dm_ftsdc010_ops; +#endif +void ftsdc_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth, + uint caps, u32 max_clk, u32 min_clk); +void set_bus_width(struct ftsdc010_mmc __iomem *regs, struct mmc_config *cfg); + +#ifdef CONFIG_BLK +int ftsdc010_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg); +#endif + + +#endif /* __FTSDC010_MCI_H */ -- 2.39.5