diff options
Diffstat (limited to 'sys/dev/mmc/mmc.c')
| -rw-r--r-- | sys/dev/mmc/mmc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sys/dev/mmc/mmc.c b/sys/dev/mmc/mmc.c index cc0db3f..439b9e0 100644 --- a/sys/dev/mmc/mmc.c +++ b/sys/dev/mmc/mmc.c @@ -106,6 +106,7 @@ static int mmc_detach(device_t dev); #define MMC_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED); static void mmc_delayed_attach(void *); +static void mmc_power_down(struct mmc_softc *sc); static int mmc_wait_for_cmd(struct mmc_softc *sc, struct mmc_command *cmd, int retries); static int mmc_wait_for_command(struct mmc_softc *sc, uint32_t opcode, @@ -161,6 +162,7 @@ mmc_detach(device_t dev) free(ivar, M_DEVBUF); } free(kids, M_TEMP); + mmc_power_down(sc); MMC_LOCK_DESTROY(sc); @@ -454,7 +456,19 @@ mmc_power_up(struct mmc_softc *sc) mmc_ms_delay(2); } -// I wonder if the following is endian safe. +static void +mmc_power_down(struct mmc_softc *sc) +{ + device_t dev = sc->dev; + + mmcbr_set_bus_mode(dev, opendrain); + mmcbr_set_chip_select(dev, cs_dontcare); + mmcbr_set_bus_width(dev, bus_width_1); + mmcbr_set_power_mode(dev, power_off); + mmcbr_set_clock(dev, 0); + mmcbr_update_ios(dev); +} + static uint32_t mmc_get_bits(uint32_t *bits, int start, int size) { |
