diff options
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index d96db7a0f83..7b068c71ff3 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -360,7 +360,7 @@ 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 +1570,20 @@ 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 @@ -2027,9 +2034,9 @@ 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; @@ -2250,6 +2257,16 @@ 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 +2577,8 @@ 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 +3029,15 @@ 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 +3055,6 @@ 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) { |