| Message ID | 1452602781-22424-3-git-send-email-lee.jones@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jan 12, 2016 at 12:46:16PM +0000, Lee Jones wrote: > Signed-off-by: Ludovic Barre <ludovic.barre@st.com> > Signed-off-by: Lee Jones <lee.jones@linaro.org> > --- > .../devicetree/bindings/remoteproc/st-rproc.txt | 41 ++++++++++++++++++++++ > 1 file changed, 41 insertions(+) > create mode 100644 Documentation/devicetree/bindings/remoteproc/st-rproc.txt Acked-by: Rob Herring <robh@kernel.org>
On Tue, 12 Jan 2016, Rob Herring wrote: > On Tue, Jan 12, 2016 at 12:46:16PM +0000, Lee Jones wrote: > > Signed-off-by: Ludovic Barre <ludovic.barre@st.com> > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > --- > > .../devicetree/bindings/remoteproc/st-rproc.txt | 41 ++++++++++++++++++++++ > > 1 file changed, 41 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/remoteproc/st-rproc.txt > > Acked-by: Rob Herring <robh@kernel.org> Ah balls. I've somehow dropped yours and Bjorn's Acks from the set. Apologies for that. I did apply them, honest!
On Tue, 12 Jan 2016, Lee Jones wrote: > Signed-off-by: Ludovic Barre <ludovic.barre@st.com> > Signed-off-by: Lee Jones <lee.jones@linaro.org> > --- > .../devicetree/bindings/remoteproc/st-rproc.txt | 41 ++++++++++++++++++++++ > 1 file changed, 41 insertions(+) > create mode 100644 Documentation/devicetree/bindings/remoteproc/st-rproc.txt Acked-by: Peter Griffin <peter.griffin@linaro.org>
diff --git a/Documentation/devicetree/bindings/remoteproc/st-rproc.txt b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt new file mode 100644 index 0000000..1031bcd --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt @@ -0,0 +1,41 @@ +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" +- memory-region Reserved memory (See: ../reserved-memory/reserved-memory.txt) +- 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: + + audio_reserved: rproc@42000000 { + compatible = "shared-dma-pool"; + reg = <0x42000000 0x01000000>; + no-map; + }; + + st231-audio { + compatible = "st,st231-rproc"; + memory-region = <&audio_reserved>; + 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>; + };