| Shawn Guo | 6de4d81 | 2012-05-06 13:30:44 +0800 | [diff] [blame] | 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 | |
| Chris Ball | 4efafee | 2012-06-11 21:48:16 -0400 | [diff] [blame] | 6 | This file documents differences between the core properties in mmc.txt |
| 7 | and the properties used by the mxsmmc driver. |
| 8 | |
| Shawn Guo | 6de4d81 | 2012-05-06 13:30:44 +0800 | [diff] [blame] | 9 | Required properties: |
| 10 | - compatible: Should be "fsl,<chip>-mmc". The supported chips include |
| 11 | imx23 and imx28. |
| Shawn Guo | 0e91e43 | 2013-02-26 10:10:38 +0800 | [diff] [blame] | 12 | - interrupts: Should contain ERROR interrupt number |
| 13 | - dmas: DMA specifier, consisting of a phandle to DMA controller node |
| 14 | and SSP DMA channel ID. |
| 15 | Refer to dma.txt and fsl-mxs-dma.txt for details. |
| 16 | - dma-names: Must be "rx-tx". |
| Shawn Guo | 6de4d81 | 2012-05-06 13:30:44 +0800 | [diff] [blame] | 17 | |
| 18 | Examples: |
| 19 | |
| 20 | ssp0: ssp@80010000 { |
| 21 | compatible = "fsl,imx28-mmc"; |
| 22 | reg = <0x80010000 2000>; |
| Shawn Guo | 0e91e43 | 2013-02-26 10:10:38 +0800 | [diff] [blame] | 23 | interrupts = <96>; |
| 24 | dmas = <&dma_apbh 0>; |
| 25 | dma-names = "rx-tx"; |
| Shawn Guo | 6de4d81 | 2012-05-06 13:30:44 +0800 | [diff] [blame] | 26 | bus-width = <8>; |
| 27 | }; |