| Message ID | 1464817421-8519-21-git-send-email-kraxel@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Jun 01, 2016 at 11:43:29PM +0200, Gerd Hoffmann wrote: > From: Eric Anholt <eric@anholt.net> > > This is the other SD controller on the platform, which can be swapped > to the role of SD card host using pin muxing. > > Signed-off-by: Eric Anholt <eric@anholt.net> > --- > .../devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt | 3 +++ > .../bindings/mmc/brcm,bcm2835-sdhost.txt | 24 ++++++++++++++++++++++ > 2 files changed, 27 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt > > diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt > index 59476fb..3cc74e2 100644 > --- a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt > +++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt > @@ -15,4 +15,7 @@ sdhci: sdhci { > interrupts = <2 30>; > clocks = <&clk_mmc>; > bus-width = <4>; > + dmas = <&dma 13>, > + <&dma 13>; > + dma-names = "tx", "rx"; This looks unrelated. Plus SDHCI implies internal DMA master generally, so is external DMA really supported? > }; > diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt > new file mode 100644 > index 0000000..074992c > --- /dev/null > +++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt > @@ -0,0 +1,24 @@ > +Broadcom BCM2835 SDHOST controller > + > +This file documents differences between the core properties described > +by mmc.txt and the properties that represent the BCM2835 controller. > + > +Required properties: > +- compatible: Should be "brcm,bcm2835-sdhci". sdhost? > +- clocks: The clock feeding the SDHOST controller. reg, interrupts missing. > + > +Optional properties: > +- dmas: DMA channels for read and write. > + See Documentation/devicetree/bindings/dma/dma.txt for details dma-names? > + > +Example: > + > +sdhost: sdhost@7e202000 { > + compatible = "brcm,bcm2835-sdhost"; > + reg = <0x7e202000 0x100>; > + interrupts = <2 24>; > + clocks = <&clocks BCM2835_CLOCK_VPU>; > + dmas = <&dma 13>, > + <&dma 13>; > + dma-names = "tx", "rx"; > +}; > -- > 1.8.3.1 >
diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt index 59476fb..3cc74e2 100644 --- a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt @@ -15,4 +15,7 @@ sdhci: sdhci { interrupts = <2 30>; clocks = <&clk_mmc>; bus-width = <4>; + dmas = <&dma 13>, + <&dma 13>; + dma-names = "tx", "rx"; }; diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt new file mode 100644 index 0000000..074992c --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt @@ -0,0 +1,24 @@ +Broadcom BCM2835 SDHOST controller + +This file documents differences between the core properties described +by mmc.txt and the properties that represent the BCM2835 controller. + +Required properties: +- compatible: Should be "brcm,bcm2835-sdhci". +- clocks: The clock feeding the SDHOST controller. + +Optional properties: +- dmas: DMA channels for read and write. + See Documentation/devicetree/bindings/dma/dma.txt for details + +Example: + +sdhost: sdhost@7e202000 { + compatible = "brcm,bcm2835-sdhost"; + reg = <0x7e202000 0x100>; + interrupts = <2 24>; + clocks = <&clocks BCM2835_CLOCK_VPU>; + dmas = <&dma 13>, + <&dma 13>; + dma-names = "tx", "rx"; +};