linux_dsm_epyc7002/include/linux/mmc
Ulf Hansson 1433269c4d mmc: core: Export a function mmc_sw_reset() to allow soft reset of cards
It's rather common that a firmware is loaded into an SDIO func device
memory, by the corresponding SDIO func driver during ->probe() time.

However, to actually start running the new firmware, sometimes a soft reset
(no power cycle) and a re-initialization of the card is needed. This is for
example the case with the Espressif ESP8089 WiFi chips, when connected to
an SDIO interface.

To cope with this scenario, let's add a new exported function,
mmc_sw_reset(), which may be called when a soft reset and re-initialization
of the card are needed.

The mmc_sw_reset() is implemented on top of a new bus ops callback, similar
to how the mmc_hw_reset() has been implemented.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
2018-05-08 09:33:42 +02:00
..
card.h mmc: core: Add a new quirk for limiting clock rate 2018-05-02 15:08:39 +02:00
core.h mmc: core: Export a function mmc_sw_reset() to allow soft reset of cards 2018-05-08 09:33:42 +02:00
host.h Merge branch 'sdhci_omap' into next 2018-05-03 10:34:06 +02:00
mmc.h
pm.h
sd.h
sdhci-pci-data.h MMC core: 2017-11-13 10:17:35 -08:00
sdio_func.h
sdio_ids.h mmc: core: sdio: Set SDIO clock of SDR104 to 150MHz for Marvell 8887 chip 2018-05-02 15:08:39 +02:00
sdio.h
sh_mmcif.h
slot-gpio.h mmc: slot-gpio: Add a function to enable/disable card detect IRQ wakeup 2018-03-05 13:04:32 +01:00