diff options
Diffstat (limited to 'drivers/mmc/sdhci.c')
-rw-r--r-- | drivers/mmc/sdhci.c | 165 |
1 files changed, 107 insertions, 58 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 604f18dcc9..7ddb549e03 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -9,6 +9,7 @@ */ #include <common.h> +#include <errno.h> #include <malloc.h> #include <mmc.h> #include <sdhci.h> @@ -129,9 +130,17 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, #define CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT 100 #define SDHCI_READ_STATUS_TIMEOUT 1000 +#ifdef CONFIG_DM_MMC_OPS +static int sdhci_send_command(struct udevice *dev, struct mmc_cmd *cmd, + struct mmc_data *data) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); + +#else static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, - struct mmc_data *data) + struct mmc_data *data) { +#endif struct sdhci_host *host = mmc->priv; unsigned int stat = 0; int ret = 0; @@ -161,7 +170,7 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, cmd_timeout); } else { puts("timeout.\n"); - return COMM_ERR; + return -ECOMM; } } time++; @@ -175,7 +184,8 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, flags = SDHCI_CMD_RESP_LONG; else if (cmd->resp_type & MMC_RSP_BUSY) { flags = SDHCI_CMD_RESP_SHORT_BUSY; - mask |= SDHCI_INT_DATA_END; + if (data) + mask |= SDHCI_INT_DATA_END; } else flags = SDHCI_CMD_RESP_SHORT; @@ -243,17 +253,17 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, stat = sdhci_readl(host, SDHCI_INT_STATUS); if (stat & SDHCI_INT_ERROR) break; - } while (((stat & mask) != mask) && - (get_timer(start) < SDHCI_READ_STATUS_TIMEOUT)); - if (get_timer(start) >= SDHCI_READ_STATUS_TIMEOUT) { - if (host->quirks & SDHCI_QUIRK_BROKEN_R1B) - return 0; - else { - printf("%s: Timeout for status update!\n", __func__); - return TIMEOUT; + if (get_timer(start) >= SDHCI_READ_STATUS_TIMEOUT) { + if (host->quirks & SDHCI_QUIRK_BROKEN_R1B) { + return 0; + } else { + printf("%s: Timeout for status update!\n", + __func__); + return -ETIMEDOUT; + } } - } + } while ((stat & mask) != mask); if ((stat & (SDHCI_INT_ERROR | mask)) == mask) { sdhci_cmd_done(host, cmd); @@ -279,9 +289,9 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, sdhci_reset(host, SDHCI_RESET_CMD); sdhci_reset(host, SDHCI_RESET_DATA); if (stat & SDHCI_INT_TIMEOUT) - return TIMEOUT; + return -ETIMEDOUT; else - return COMM_ERR; + return -ECOMM; } static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) @@ -304,7 +314,7 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock) } reg = sdhci_readw(host, SDHCI_CLOCK_CONTROL); - reg &= ~SDHCI_CLOCK_CARD_EN; + reg &= ~(SDHCI_CLOCK_CARD_EN | SDHCI_CLOCK_INT_EN); sdhci_writew(host, reg, SDHCI_CLOCK_CONTROL); if (clock == 0) @@ -389,8 +399,14 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); } +#ifdef CONFIG_DM_MMC_OPS +static int sdhci_set_ios(struct udevice *dev) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); +#else static void sdhci_set_ios(struct mmc *mmc) { +#endif u32 ctrl; struct sdhci_host *host = mmc->priv; @@ -426,6 +442,9 @@ static void sdhci_set_ios(struct mmc *mmc) ctrl &= ~SDHCI_CTRL_HISPD; sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); +#ifdef CONFIG_DM_MMC_OPS + return 0; +#endif } static int sdhci_init(struct mmc *mmc) @@ -472,80 +491,109 @@ static int sdhci_init(struct mmc *mmc) return 0; } +#ifdef CONFIG_DM_MMC_OPS +int sdhci_probe(struct udevice *dev) +{ + struct mmc *mmc = mmc_get_mmc_dev(dev); + return sdhci_init(mmc); +} + +const struct dm_mmc_ops sdhci_ops = { + .send_cmd = sdhci_send_command, + .set_ios = sdhci_set_ios, +}; +#else static const struct mmc_ops sdhci_ops = { .send_cmd = sdhci_send_command, .set_ios = sdhci_set_ios, .init = sdhci_init, }; +#endif -int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk) +int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host, + u32 max_clk, u32 min_clk) { - unsigned int caps; - - host->cfg.name = host->name; - host->cfg.ops = &sdhci_ops; + u32 caps; caps = sdhci_readl(host, SDHCI_CAPABILITIES); -#ifdef CONFIG_MMC_SDMA - if (!(caps & SDHCI_CAN_DO_SDMA)) { - printf("%s: Your controller doesn't support SDMA!!\n", - __func__); - return -1; - } -#endif + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); + cfg->name = host->name; +#ifndef CONFIG_DM_MMC_OPS + cfg->ops = &sdhci_ops; +#endif if (max_clk) - host->cfg.f_max = max_clk; + cfg->f_max = max_clk; else { if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) - host->cfg.f_max = (caps & SDHCI_CLOCK_V3_BASE_MASK) - >> SDHCI_CLOCK_BASE_SHIFT; + cfg->f_max = (caps & SDHCI_CLOCK_V3_BASE_MASK) >> + SDHCI_CLOCK_BASE_SHIFT; else - host->cfg.f_max = (caps & SDHCI_CLOCK_BASE_MASK) - >> SDHCI_CLOCK_BASE_SHIFT; - host->cfg.f_max *= 1000000; - } - if (host->cfg.f_max == 0) { - printf("%s: Hardware doesn't specify base clock frequency\n", - __func__); - return -1; + cfg->f_max = (caps & SDHCI_CLOCK_BASE_MASK) >> + SDHCI_CLOCK_BASE_SHIFT; + cfg->f_max *= 1000000; } + if (cfg->f_max == 0) + return -EINVAL; if (min_clk) - host->cfg.f_min = min_clk; + cfg->f_min = min_clk; else { if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) - host->cfg.f_min = host->cfg.f_max / - SDHCI_MAX_DIV_SPEC_300; + cfg->f_min = cfg->f_max / SDHCI_MAX_DIV_SPEC_300; else - host->cfg.f_min = host->cfg.f_max / - SDHCI_MAX_DIV_SPEC_200; + cfg->f_min = cfg->f_max / SDHCI_MAX_DIV_SPEC_200; } - - host->cfg.voltages = 0; + cfg->voltages = 0; if (caps & SDHCI_CAN_VDD_330) - host->cfg.voltages |= MMC_VDD_32_33 | MMC_VDD_33_34; + cfg->voltages |= MMC_VDD_32_33 | MMC_VDD_33_34; if (caps & SDHCI_CAN_VDD_300) - host->cfg.voltages |= MMC_VDD_29_30 | MMC_VDD_30_31; + cfg->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31; if (caps & SDHCI_CAN_VDD_180) - host->cfg.voltages |= MMC_VDD_165_195; - - if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE) - host->cfg.voltages |= host->voltages; + cfg->voltages |= MMC_VDD_165_195; - host->cfg.host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT; + cfg->host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT; if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) { if (caps & SDHCI_CAN_DO_8BIT) - host->cfg.host_caps |= MMC_MODE_8BIT; + cfg->host_caps |= MMC_MODE_8BIT; } - if (host->quirks & SDHCI_QUIRK_NO_HISPD_BIT) - host->cfg.host_caps &= ~(MMC_MODE_HS | MMC_MODE_HS_52MHz); - if (host->host_caps) - host->cfg.host_caps |= host->host_caps; + cfg->host_caps |= host->host_caps; + + + cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; - host->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; + return 0; +} + +#ifdef CONFIG_BLK +int sdhci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg) +{ + return mmc_bind(dev, mmc, cfg); +} +#else +int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk) +{ +#ifdef CONFIG_MMC_SDMA + unsigned int caps; + + caps = sdhci_readl(host, SDHCI_CAPABILITIES); + if (!(caps & SDHCI_CAN_DO_SDMA)) { + printf("%s: Your controller doesn't support SDMA!!\n", + __func__); + return -1; + } +#endif + + if (sdhci_setup_cfg(&host->cfg, host, max_clk, min_clk)) { + printf("%s: Hardware doesn't specify base clock frequency\n", + __func__); + return -EINVAL; + } + + if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE) + host->cfg.voltages |= host->voltages; sdhci_reset(host, SDHCI_RESET_ALL); @@ -557,3 +605,4 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk) return 0; } +#endif |