Based on kernel version 2.6.37. Page generated on 2011-03-22 21:57 EST.
1 MMC/SD/SDIO slot directly connected to a SPI bus 2 3 Required properties: 4 - compatible : should be "mmc-spi-slot". 5 - reg : should specify SPI address (chip-select number). 6 - spi-max-frequency : maximum frequency for this device (Hz). 7 - voltage-ranges : two cells are required, first cell specifies minimum 8 slot voltage (mV), second cell specifies maximum slot voltage (mV). 9 Several ranges could be specified. 10 - gpios : (optional) may specify GPIOs in this order: Card-Detect GPIO, 11 Write-Protect GPIO. 12 13 Example: 14 15 mmc-slot@0 { 16 compatible = "fsl,mpc8323rdb-mmc-slot", 17 "mmc-spi-slot"; 18 reg = <0>; 19 gpios = <&qe_pio_d 14 1 20 &qe_pio_d 15 0>; 21 voltage-ranges = <3300 3300>; 22 spi-max-frequency = <50000000>; 23 };