diff options
| -rw-r--r-- | Documentation/powerpc/dts-bindings/mmc-spi-slot.txt | 23 | ||||
| -rw-r--r-- | drivers/of/base.c | 1 |
2 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt b/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt new file mode 100644 index 00000000000..c39ac289195 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt @@ -0,0 +1,23 @@ +MMC/SD/SDIO slot directly connected to a SPI bus + +Required properties: +- compatible : should be "mmc-spi-slot". +- reg : should specify SPI address (chip-select number). +- spi-max-frequency : maximum frequency for this device (Hz). +- voltage-ranges : two cells are required, first cell specifies minimum + slot voltage (mV), second cell specifies maximum slot voltage (mV). + Several ranges could be specified. +- gpios : (optional) may specify GPIOs in this order: Card-Detect GPIO, + Write-Protect GPIO. + +Example: + + mmc-slot@0 { + compatible = "fsl,mpc8323rdb-mmc-slot", + "mmc-spi-slot"; + reg = <0>; + gpios = <&qe_pio_d 14 1 + &qe_pio_d 15 0>; + voltage-ranges = <3300 3300>; + spi-max-frequency = <50000000>; + }; diff --git a/drivers/of/base.c b/drivers/of/base.c index cd17092b82b..41c5dfd8535 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -446,6 +446,7 @@ struct of_modalias_table { }; static struct of_modalias_table of_modalias_table[] = { { "fsl,mcu-mpc8349emitx", "mcu-mpc8349emitx" }, + { "mmc-spi-slot", "mmc_spi" }, }; /** |