| Anton Vorontsov | 3f1c6eb | 2009-03-31 15:24:38 -0700 | [diff] [blame] | 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 | }; |