Messages in this thread Patch in this message | | | From | Oleksij Rempel <> | Subject | [PATCH v1 1/2] remoteproc: dt: Provide bindings for iMX6SX/7D Remote Processor Controller driver | Date | Mon, 10 Jul 2017 16:42:19 +0200 |
| |
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> --- .../devicetree/bindings/remoteproc/imx-rproc.txt | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/imx-rproc.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt new file mode 100644 index 000000000000..e7c61993e1b8 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/imx-rproc.txt @@ -0,0 +1,44 @@ +NXP iMX6SX/iMX7D Co-Processor Bindings +---------------------------------------- + +This binding provides support for ARM Cortex M4 Co-processor found on some +NXP iMX SoCs. + +Required properties: +- compatible Should be one of: + "fsl,imx7d-rproc" + "fsl,imx6sx-rproc" +- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) +- syscfg Phandle to syscon block which provide access to + System Reset Controller + +Optional properties: +- reg: Should contain the address ranges for some of internal + memory regions. +- reg-names: Contains the corresponding names for the memory + regions. These should be named "ddr", "ocram", "ocram-s", + "ocram-epdc" or "ocram-pxp". +Fallowing memory ranges are expected: +- For "fsl,imx7d-rproc" + <0x00900000 0x00020000> - "ocram" + <0x00920000 0x00020000> - "ocram-epdc" + <0x00940000 0x00008000> - "ocram-pxp" + <0x80000000 0x0FFF0000> - "ddr" (code area) + <0x80000000 0x60000000> - "ddr" (data area) +- For "fsl,imx6sx-rproc" + <0x008F8000 0x00004000> - "ocram-s" + <0x80000000 0x0FFF8000> - "ddr" (code area) + <0x80000000 0x60000000> - "ddr" (data area) + +Note: the "ddr" code and data ranges are overlapping. Code area is smaller +than data area. So this range should be carefully chosen according to your +system and application requirements. + +Example: + imx_rproc: imx7d-rp0@0 { + compatible = "fsl,imx7d-rproc"; + reg = <0x80000000 0x80000>, <0x00900000 0x2000>; + reg-names = "ddr", "ocram"; + syscon = <&src>; + clocks = <&clks IMX7D_ARM_M4_ROOT_CLK>; + }; -- 2.11.0
| |