[PATCH v3 2/6] remoteproc: dt: Provide bindings for ST's Remote Processor Controller driver
From: Lee Jones <hidden>
Date: 2015-09-02 15:40:28
Also in:
linux-arm-kernel, lkml
Subsystem:
open firmware and flattened device tree bindings, remote processor (remoteproc) subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Bjorn Andersson, Mathieu Poirier, Linus Torvalds
Signed-off-by: Ludovic Barre <redacted> Signed-off-by: Lee Jones <redacted> --- .../devicetree/bindings/remoteproc/st-rproc.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/st-rproc.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/st-rproc.txt b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt
new file mode 100644
index 0000000..c3848f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt@@ -0,0 +1,35 @@ +STMicroelectronics Co-Processor Bindings +---------------------------------------- + +This binding provides support for adjunct processors found on ST SoCs. + +Co-processors can be controlled from the bootloader or the primary OS. If +the bootloader starts a co-processor, the primary OS must detect its state +and act accordingly. + +Required properties: +- compatible Should be one of: + "st,st231-rproc" + "st,st40-rproc" +- reg Size and length of reserved co-processor memory +- resets Reset lines (See: ../reset/reset.txt) +- reset-names Must be "sw_reset" and "pwr_reset" +- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) +- clock-frequency Clock frequency to set co-processor at if the bootloader + hasn't already done so +- st,syscfg System configuration register which holds the boot vector + for the co-processor + 1st cell: Phandle to syscon block + 2nd cell: Boot vector register offset + +Example: + + st231-audio@bae00000 { + compatible = "st,st231-rproc"; + reg = <0xbae00000 0x01000000>; + resets = <&softreset STIH407_ST231_AUD_SOFTRESET>; + reset-names = "sw_reset"; + clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>; + clock-frequency = <600000000>; + st,syscfg = <&syscfg_core 0x228>; + };
--
1.9.1