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| -rw-r--r-- | Documentation/devicetree/bindings/mmc/renesas,mmcif.txt | 32 |
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| 1 | * Renesas Multi Media Card Interface (MMCIF) Controller | ||
| 2 | |||
| 3 | This file documents differences between the core properties in mmc.txt | ||
| 4 | and the properties used by the MMCIF device. | ||
| 5 | |||
| 6 | |||
| 7 | Required properties: | ||
| 8 | |||
| 9 | - compatible: must contain one of the following | ||
| 10 | - "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs | ||
| 11 | - "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs | ||
| 12 | - "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs | ||
| 13 | - "renesas,sh-mmcif" for the generic MMCIF | ||
| 14 | |||
| 15 | - clocks: reference to the functional clock | ||
| 16 | |||
| 17 | - dmas: reference to the DMA channels, one per channel name listed in the | ||
| 18 | dma-names property. | ||
| 19 | - dma-names: must contain "tx" for the transmit DMA channel and "rx" for the | ||
| 20 | receive DMA channel. | ||
| 21 | |||
| 22 | |||
| 23 | Example: R8A7790 (R-Car H2) MMCIF0 | ||
| 24 | |||
| 25 | mmcif0: mmc@ee200000 { | ||
| 26 | compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif"; | ||
| 27 | reg = <0 0xee200000 0 0x80>; | ||
| 28 | interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>; | ||
| 29 | clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>; | ||
| 30 | dmas = <&dmac0 0xd1>, <&dmac0 0xd2>; | ||
| 31 | dma-names = "tx", "rx"; | ||
| 32 | }; | ||
