diff options
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index d96db7a0f83..b18dc331f78 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -8,7 +8,6 @@ */ #include <config.h> -#include <common.h> #include <blk.h> #include <command.h> #include <dm.h> @@ -17,6 +16,7 @@ #include <errno.h> #include <mmc.h> #include <part.h> +#include <time.h> #include <linux/bitops.h> #include <linux/delay.h> #include <linux/printk.h> @@ -24,6 +24,7 @@ #include <malloc.h> #include <memalign.h> #include <linux/list.h> +#include <linux/printk.h> #include <div64.h> #include "mmc_private.h" @@ -329,7 +330,7 @@ int mmc_set_blocklen(struct mmc *mmc, int len) MMC_QUIRK_RETRY_SET_BLOCKLEN, 4); } -#ifdef MMC_SUPPORTS_TUNING +#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING) static const u8 tuning_blk_pattern_4bit[] = { 0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc, 0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef, @@ -360,7 +361,7 @@ static const u8 tuning_blk_pattern_8bit[] = { 0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, }; -int mmc_send_tuning(struct mmc *mmc, u32 opcode, int *cmd_error) +int mmc_send_tuning(struct mmc *mmc, u32 opcode) { struct mmc_cmd cmd; struct mmc_data data; @@ -1570,13 +1571,20 @@ static int sd_read_ssr(struct mmc *mmc) return 0; } #endif -/* frequency bases */ -/* divided by 10 to be nice to platforms without floating point */ +/* + * TRAN_SPEED bits 0:2 encode the frequency unit: + * 0 = 100KHz, 1 = 1MHz, 2 = 10MHz, 3 = 100MHz, values 4 - 7 are reserved. + * The values in fbase[] are divided by 10 to avoid floats in multiplier[]. + */ static const int fbase[] = { 10000, 100000, 1000000, 10000000, + 0, /* reserved */ + 0, /* reserved */ + 0, /* reserved */ + 0, /* reserved */ }; /* Multiplier values for TRAN_SPEED. Multiplied by 10 to be nice @@ -1614,7 +1622,7 @@ static inline int bus_width(uint cap) } #if !CONFIG_IS_ENABLED(DM_MMC) -#ifdef MMC_SUPPORTS_TUNING +#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING) static int mmc_execute_tuning(struct mmc *mmc, uint opcode) { return -ENOTSUPP; @@ -1695,7 +1703,7 @@ void mmc_dump_capabilities(const char *text, uint caps) struct mode_width_tuning { enum bus_mode mode; uint widths; -#ifdef MMC_SUPPORTS_TUNING +#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING) uint tuning; #endif }; @@ -1736,7 +1744,7 @@ static inline int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage) #if !CONFIG_IS_ENABLED(MMC_TINY) static const struct mode_width_tuning sd_modes_by_pref[] = { #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) -#ifdef MMC_SUPPORTS_TUNING +#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING) { .mode = UHS_SDR104, .widths = MMC_MODE_4BIT | MMC_MODE_1BIT, @@ -1839,7 +1847,7 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); -#ifdef MMC_SUPPORTS_TUNING +#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING) /* execute tuning if needed */ if (mwt->tuning && !mmc_host_is_spi(mmc)) { err = mmc_execute_tuning(mmc, @@ -2027,9 +2035,9 @@ static int mmc_select_hs400(struct mmc *mmc) mmc_set_clock(mmc, mmc->tran_speed, false); /* execute tuning if needed */ - mmc->hs400_tuning = 1; + mmc->hs400_tuning = true; err = mmc_execute_tuning(mmc, MMC_CMD_SEND_TUNING_BLOCK_HS200); - mmc->hs400_tuning = 0; + mmc->hs400_tuning = false; if (err) { debug("tuning failed\n"); return err; @@ -2217,7 +2225,7 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) mmc_select_mode(mmc, mwt->mode); mmc_set_clock(mmc, mmc->tran_speed, MMC_CLK_ENABLE); -#ifdef MMC_SUPPORTS_TUNING +#if CONFIG_IS_ENABLED(MMC_SUPPORTS_TUNING) /* execute tuning if needed */ if (mwt->tuning) { @@ -2250,6 +2258,16 @@ error: return -ENOTSUPP; } +#else +static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) +{ + return 0; +}; + +static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps) +{ + return 0; +}; #endif #if CONFIG_IS_ENABLED(MMC_TINY) @@ -2560,6 +2578,8 @@ static int mmc_startup(struct mmc *mmc) mult = multipliers[((cmd.response[0] >> 3) & 0xf)]; mmc->legacy_speed = freq * mult; + if (!mmc->legacy_speed) + log_debug("TRAN_SPEED: reserved value"); mmc_select_mode(mmc, MMC_LEGACY); mmc->dsr_imp = ((cmd.response[1] >> 12) & 0x1); @@ -3010,13 +3030,15 @@ int mmc_init(struct mmc *mmc) return err; } -#if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \ - CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \ - CONFIG_IS_ENABLED(MMC_HS400_SUPPORT) int mmc_deinit(struct mmc *mmc) { u32 caps_filtered; + if (!CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) && + !CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) && + !CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)) + return 0; + if (!mmc->has_init) return 0; @@ -3034,7 +3056,6 @@ int mmc_deinit(struct mmc *mmc) return mmc_select_mode_and_width(mmc, caps_filtered); } } -#endif int mmc_set_dsr(struct mmc *mmc, u16 val) { |