diff options
| author | Marius Strobl <marius@FreeBSD.org> | 2018-11-17 17:21:36 +0000 |
|---|---|---|
| committer | Marius Strobl <marius@FreeBSD.org> | 2018-11-17 17:21:36 +0000 |
| commit | f426dff83b8c79bb2cbbcd8a54b471edca0cf6e8 (patch) | |
| tree | e50568bd1f8479825006a8b45ea16c0ade2c24fa /sys/dev/mmc | |
| parent | 945aad9c62053c4a8e16b520f92d70e42ac6349d (diff) | |
Notes
Diffstat (limited to 'sys/dev/mmc')
| -rw-r--r-- | sys/dev/mmc/mmc.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/sys/dev/mmc/mmc.c b/sys/dev/mmc/mmc.c index cf5cacbf0fe6..3519f1b0ed3a 100644 --- a/sys/dev/mmc/mmc.c +++ b/sys/dev/mmc/mmc.c @@ -830,9 +830,14 @@ mmc_set_power_class(struct mmc_softc *sc, struct mmc_ivars *ivar) const uint8_t *ext_csd; uint32_t clock; uint8_t value; + enum mmc_bus_timing timing; + enum mmc_bus_width bus_width; dev = sc->dev; - if (mmcbr_get_mode(dev) != mode_mmc || ivar->csd.spec_vers < 4) + timing = mmcbr_get_timing(dev); + bus_width = ivar->bus_width; + if (mmcbr_get_mode(dev) != mode_mmc || ivar->csd.spec_vers < 4 || + timing == bus_timing_normal || bus_width == bus_width_1) return (MMC_ERR_NONE); value = 0; @@ -843,8 +848,8 @@ mmc_set_power_class(struct mmc_softc *sc, struct mmc_ivars *ivar) if (clock <= MMC_TYPE_HS_26_MAX) value = ext_csd[EXT_CSD_PWR_CL_26_195]; else if (clock <= MMC_TYPE_HS_52_MAX) { - if (mmcbr_get_timing(dev) >= bus_timing_mmc_ddr52 && - ivar->bus_width >= bus_width_4) + if (timing >= bus_timing_mmc_ddr52 && + bus_width >= bus_width_4) value = ext_csd[EXT_CSD_PWR_CL_52_195_DDR]; else value = ext_csd[EXT_CSD_PWR_CL_52_195]; @@ -863,13 +868,13 @@ mmc_set_power_class(struct mmc_softc *sc, struct mmc_ivars *ivar) if (clock <= MMC_TYPE_HS_26_MAX) value = ext_csd[EXT_CSD_PWR_CL_26_360]; else if (clock <= MMC_TYPE_HS_52_MAX) { - if (mmcbr_get_timing(dev) == bus_timing_mmc_ddr52 && - ivar->bus_width >= bus_width_4) + if (timing == bus_timing_mmc_ddr52 && + bus_width >= bus_width_4) value = ext_csd[EXT_CSD_PWR_CL_52_360_DDR]; else value = ext_csd[EXT_CSD_PWR_CL_52_360]; } else if (clock <= MMC_TYPE_HS200_HS400ES_MAX) { - if (ivar->bus_width == bus_width_8) + if (bus_width == bus_width_8) value = ext_csd[EXT_CSD_PWR_CL_200_360_DDR]; else value = ext_csd[EXT_CSD_PWR_CL_200_360]; @@ -881,7 +886,7 @@ mmc_set_power_class(struct mmc_softc *sc, struct mmc_ivars *ivar) return (MMC_ERR_INVALID); } - if (ivar->bus_width == bus_width_8) + if (bus_width == bus_width_8) value = (value & EXT_CSD_POWER_CLASS_8BIT_MASK) >> EXT_CSD_POWER_CLASS_8BIT_SHIFT; else @@ -2164,7 +2169,7 @@ mmc_calculate_clock(struct mmc_softc *sc) for (i = 0; i < sc->child_count; i++) { ivar = device_get_ivars(sc->child_list[i]); if ((ivar->timings & ~(1 << bus_timing_normal)) == 0) - continue; + goto clock; rca = ivar->rca; if (mmc_select_card(sc, rca) != MMC_ERR_NONE) { @@ -2230,6 +2235,7 @@ mmc_calculate_clock(struct mmc_softc *sc) } } +clock: /* Set clock (must be done before initial tuning). */ mmcbr_set_clock(dev, max_dtr); mmcbr_update_ios(dev); |