diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/mmc.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 5255c0dccf..fd9498708c 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -22,14 +22,6 @@ #include <div64.h> #include "mmc_private.h" -static const unsigned int sd_au_size[] = { - 0, SZ_16K / 512, SZ_32K / 512, - SZ_64K / 512, SZ_128K / 512, SZ_256K / 512, - SZ_512K / 512, SZ_1M / 512, SZ_2M / 512, - SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512, - SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512, -}; - static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage); static int mmc_power_cycle(struct mmc *mmc); static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps); @@ -1376,8 +1368,17 @@ int sd_select_bus_width(struct mmc *mmc, int w) return 0; } +#if CONFIG_IS_ENABLED(MMC_WRITE) static int sd_read_ssr(struct mmc *mmc) { + static const unsigned int sd_au_size[] = { + 0, SZ_16K / 512, SZ_32K / 512, + SZ_64K / 512, SZ_128K / 512, SZ_256K / 512, + SZ_512K / 512, SZ_1M / 512, SZ_2M / 512, + SZ_4M / 512, SZ_8M / 512, (SZ_8M + SZ_4M) / 512, + SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, + SZ_64M / 512, + }; int err, i; struct mmc_cmd cmd; ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16); @@ -1431,7 +1432,7 @@ retry_ssr: return 0; } - +#endif /* frequency bases */ /* divided by 10 to be nice to platforms without floating point */ static const int fbase[] = { @@ -1689,12 +1690,14 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps) } #endif +#if CONFIG_IS_ENABLED(MMC_WRITE) err = sd_read_ssr(mmc); if (!err) + pr_warn("unable to read ssr\n"); +#endif + if (!err) return 0; - pr_warn("bad ssr\n"); - error: /* revert to a safer bus speed */ mmc_select_mode(mmc, SD_LEGACY); |