mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 06:12:08 +00:00
b4c27763d7
The sh-mmcif driver implements DT support but the bindings are not documented. Document them. Cc: devicetree@vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
* Renesas Multi Media Card Interface (MMCIF) Controller
|
|
|
|
This file documents differences between the core properties in mmc.txt
|
|
and the properties used by the MMCIF device.
|
|
|
|
|
|
Required properties:
|
|
|
|
- compatible: must contain one of the following
|
|
- "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs
|
|
- "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs
|
|
- "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs
|
|
- "renesas,sh-mmcif" for the generic MMCIF
|
|
|
|
- clocks: reference to the functional clock
|
|
|
|
- dmas: reference to the DMA channels, one per channel name listed in the
|
|
dma-names property.
|
|
- dma-names: must contain "tx" for the transmit DMA channel and "rx" for the
|
|
receive DMA channel.
|
|
|
|
|
|
Example: R8A7790 (R-Car H2) MMCIF0
|
|
|
|
mmcif0: mmc@ee200000 {
|
|
compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif";
|
|
reg = <0 0xee200000 0 0x80>;
|
|
interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>;
|
|
dmas = <&dmac0 0xd1>, <&dmac0 0xd2>;
|
|
dma-names = "tx", "rx";
|
|
};
|