From 00ce25c6dcdae5582ae4be37147ab33678adc995 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Fri, 25 Apr 2014 11:22:32 +0200 Subject: 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 --- dts/Bindings/spi/spi-rspi.txt | 61 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 dts/Bindings/spi/spi-rspi.txt (limited to 'dts/Bindings/spi/spi-rspi.txt') diff --git a/dts/Bindings/spi/spi-rspi.txt b/dts/Bindings/spi/spi-rspi.txt new file mode 100644 index 0000000000..d57d82a740 --- /dev/null +++ b/dts/Bindings/spi/spi-rspi.txt @@ -0,0 +1,61 @@ +Device tree configuration for Renesas RSPI/QSPI driver + +Required properties: +- compatible : For Renesas Serial Peripheral Interface on legacy SH: + "renesas,rspi-", "renesas,rspi" as fallback. + For Renesas Serial Peripheral Interface on RZ/A1H: + "renesas,rspi-", "renesas,rspi-rz" as fallback. + For Quad Serial Peripheral Interface on R-Car Gen2: + "renesas,qspi-", "renesas,qspi" as fallback. + Examples with soctypes are: + - "renesas,rspi-sh7757" (SH) + - "renesas,rspi-r7s72100" (RZ/A1H) + - "renesas,qspi-r8a7790" (R-Car H2) + - "renesas,qspi-r8a7791" (R-Car M2) +- reg : Address start and address range size of the device +- interrupts : A list of interrupt-specifiers, one for each entry in + interrupt-names. + If interrupt-names is not present, an interrupt specifier + for a single muxed interrupt. +- interrupt-names : A list of interrupt names. Should contain (if present): + - "error" for SPEI, + - "rx" for SPRI, + - "tx" to SPTI, + - "mux" for a single muxed interrupt. +- interrupt-parent : The phandle for the interrupt controller that + services interrupts for this device. +- num-cs : Number of chip selects. Some RSPI cores have more than 1. +- #address-cells : Must be <1> +- #size-cells : Must be <0> + +Optional properties: +- clocks : Must contain a reference to the functional clock. + +Pinctrl properties might be needed, too. See +Documentation/devicetree/bindings/pinctrl/renesas,*. + +Examples: + + spi0: spi@e800c800 { + compatible = "renesas,rspi-r7s72100", "renesas,rspi-rz"; + reg = <0xe800c800 0x24>; + interrupts = <0 238 IRQ_TYPE_LEVEL_HIGH>, + <0 239 IRQ_TYPE_LEVEL_HIGH>, + <0 240 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "error", "rx", "tx"; + interrupt-parent = <&gic>; + num-cs = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; + + spi: spi@e6b10000 { + compatible = "renesas,qspi-r8a7791", "renesas,qspi"; + reg = <0 0xe6b10000 0 0x2c>; + interrupt-parent = <&gic>; + interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&mstp9_clks R8A7791_CLK_QSPI_MOD>; + num-cs = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; -- cgit v1.2.3