diff mbox

[v5,2/7] remoteproc: dt: Provide bindings for ST's Remote Processor Controller driver

Message ID 1452602781-22424-3-git-send-email-lee.jones@linaro.org
State Accepted
Commit 6cb0e0f6a46a6c2f1d6f9d4a0539f2ed7d8487fb
Headers show

Commit Message

Lee Jones Jan. 12, 2016, 12:46 p.m. UTC
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

-- 
1.9.1

Comments

Lee Jones Jan. 12, 2016, 2:46 p.m. UTC | #1
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!

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
diff mbox

Patch

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>;
+	};