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Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/mxs-mmc.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mxs-mmc.txt b/Documentation/devicetree/bindings/mmc/mxs-mmc.txt new file mode 100644 index 00000000000..14d870a9e3d --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/mxs-mmc.txt | |||
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1 | * Freescale MXS MMC controller | ||
2 | |||
3 | The Freescale MXS Synchronous Serial Ports (SSP) can act as a MMC controller | ||
4 | to support MMC, SD, and SDIO types of memory cards. | ||
5 | |||
6 | Required properties: | ||
7 | - compatible: Should be "fsl,<chip>-mmc". The supported chips include | ||
8 | imx23 and imx28. | ||
9 | - reg: Should contain registers location and length | ||
10 | - interrupts: Should contain ERROR and DMA interrupts | ||
11 | - fsl,ssp-dma-channel: APBH DMA channel for the SSP | ||
12 | - bus-width: Number of data lines, can be <1>, <4>, or <8> | ||
13 | |||
14 | Optional properties: | ||
15 | - wp-gpios: Specify GPIOs for write protection | ||
16 | |||
17 | Examples: | ||
18 | |||
19 | ssp0: ssp@80010000 { | ||
20 | compatible = "fsl,imx28-mmc"; | ||
21 | reg = <0x80010000 2000>; | ||
22 | interrupts = <96 82>; | ||
23 | fsl,ssp-dma-channel = <0>; | ||
24 | bus-width = <8>; | ||
25 | }; | ||