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| author | Grant Likely <grant.likely@secretlab.ca> | 2011-02-28 09:36:21 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-02-28 09:36:21 +0100 |
| commit | 38a5d6736e7f714cc56d58692001e66dcbb98799 (patch) | |
| tree | 337d32375e10b04642013710c2c424514474b32c /Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt | |
| parent | altera_ps2: Add devicetree support (diff) | |
| parent | Linux 2.6.38-rc6 (diff) | |
| download | linux-38a5d6736e7f714cc56d58692001e66dcbb98799.tar.xz linux-38a5d6736e7f714cc56d58692001e66dcbb98799.zip | |
Merge commit 'v2.6.38-rc6' into devicetree/next
Conflicts:
drivers/spi/pxa2xx_spi_pci.c
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt new file mode 100644 index 000000000000..c39ac2891951 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/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>; + }; |