diff options
| author | Matt Porter <mporter@ti.com> | 2013-09-10 23:24:39 +0400 |
|---|---|---|
| committer | Benoit Cousson <bcousson@baylibre.com> | 2013-10-11 23:06:29 +0400 |
| commit | 55b4452b4b7082ecf3cc2095bc21762a901a8ca2 (patch) | |
| tree | 995295869826dab924763d3da0a7d99a7dffb02f /Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt | |
| parent | f5e2f807b730fa7f0683e515fe7483a5ebff9095 (diff) | |
| download | linux-55b4452b4b7082ecf3cc2095bc21762a901a8ca2.tar.xz | |
ARM: dts: AM33XX: Add MMC support and documentation
Adds AM33XX MMC support for am335x-bone, am335x-evm and am335x-evmsk boards.
Also added is the DMA binding definitions based on the generic DMA request
binding.
Additional changes made to DTS:
* Interrupt, reg and compatible properties added
* ti,needs-special-hs-handling added
Signed-off-by: Matt Porter <mporter@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt index ed271fc255b2..8c8908ab84ba 100644 --- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt +++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt @@ -20,8 +20,29 @@ ti,dual-volt: boolean, supports dual voltage cards ti,non-removable: non-removable slot (like eMMC) ti,needs-special-reset: Requires a special softreset sequence ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed +dmas: List of DMA specifiers with the controller specific format +as described in the generic DMA client binding. A tx and rx +specifier is required. +dma-names: List of DMA request names. These strings correspond +1:1 with the DMA specifiers listed in dmas. The string naming is +to be "rx" and "tx" for RX and TX DMA requests, respectively. + +Examples: + +[hwmod populated DMA resources] + + mmc1: mmc@0x4809c000 { + compatible = "ti,omap4-hsmmc"; + reg = <0x4809c000 0x400>; + ti,hwmods = "mmc1"; + ti,dual-volt; + bus-width = <4>; + vmmc-supply = <&vmmc>; /* phandle to regulator node */ + ti,non-removable; + }; + +[generic DMA request binding] -Example: mmc1: mmc@0x4809c000 { compatible = "ti,omap4-hsmmc"; reg = <0x4809c000 0x400>; @@ -30,4 +51,7 @@ Example: bus-width = <4>; vmmc-supply = <&vmmc>; /* phandle to regulator node */ ti,non-removable; + dmas = <&edma 24 + &edma 25>; + dma-names = "tx", "rx"; }; |