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author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-25 11:22:32 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-28 09:08:46 +0200 |
commit | 00ce25c6dcdae5582ae4be37147ab33678adc995 (patch) | |
tree | 41c93102ae304a61738c31353e3cb5336ef0b297 /dts/Bindings/arm/primecell.txt | |
parent | 0af79fbb6779921d3f1962773adb7fb57d3c89d4 (diff) | |
download | barebox-00ce25c6dcdae5582ae4be37147ab33678adc995.tar.gz barebox-00ce25c6dcdae5582ae4be37147ab33678adc995.tar.xz |
Add devicetree source files as of Linux-3.15-rc2
This adds the Linux dts files to barebox. The dts files are
generated from Ian Campbells device-tree-rebasing.git:
git://xenbits.xen.org/people/ianc/device-tree-rebasing.git
The dts are found in dts/ in the barebox repository and
will be updated from upstream regularly, probably for each upstream
-rc.
To keep the synchronization with upstream easy no changes to
the original files are allowed under dts/. Instead changes to
upstream dts files will be done using overlays in arch/$ARCH/dts/.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/arm/primecell.txt')
-rw-r--r-- | dts/Bindings/arm/primecell.txt | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/dts/Bindings/arm/primecell.txt b/dts/Bindings/arm/primecell.txt new file mode 100644 index 0000000000..0df6acacfa --- /dev/null +++ b/dts/Bindings/arm/primecell.txt @@ -0,0 +1,46 @@ +* ARM Primecell Peripherals + +ARM, Ltd. Primecell peripherals have a standard id register that can be used to +identify the peripheral type, vendor, and revision. This value can be used for +driver matching. + +Required properties: + +- compatible : should be a specific name for the peripheral and + "arm,primecell". The specific name will match the ARM + engineering name for the logic block in the form: "arm,pl???" + +Optional properties: + +- arm,primecell-periphid : Value to override the h/w value with +- clocks : From common clock binding. First clock is phandle to clock for apb + pclk. Additional clocks are optional and specific to those peripherals. +- clock-names : From common clock binding. Shall be "apb_pclk" for first clock. +- dmas : From common DMA binding. If present, refers to one or more dma channels. +- dma-names : From common DMA binding, needs to match the 'dmas' property. + Devices with exactly one receive and transmit channel shall name + these "rx" and "tx", respectively. +- pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt +- pinctrl-names : Names corresponding to the numbered pinctrl states +- interrupts : one or more interrupt specifiers +- interrupt-names : names corresponding to the interrupts properties + +Example: + +serial@fff36000 { + compatible = "arm,pl011", "arm,primecell"; + arm,primecell-periphid = <0x00341011>; + + clocks = <&pclk>; + clock-names = "apb_pclk"; + + dmas = <&dma-controller 4>, <&dma-controller 5>; + dma-names = "rx", "tx"; + + pinctrl-0 = <&uart0_default_mux>, <&uart0_default_mode>; + pinctrl-1 = <&uart0_sleep_mode>; + pinctrl-names = "default","sleep"; + + interrupts = <0 11 0x4>; +}; + |