[mirror_ubuntu-jammy-kernel.git] / Documentation / devicetree / bindings / remoteproc / mtk,scp.txt

Mediatek SCP Bindings
----------------------------------------

This binding provides support for ARM Cortex M4 Co-processor found on some
Mediatek SoCs.

Required properties:
- compatible		Should be "mediatek,mt8183-scp"
- reg			Should contain the address ranges for memory regions:
			SRAM, CFG, and L1TCM.
- reg-names		Contains the corresponding names for the memory regions:
			"sram", "cfg", and "l1tcm".
- clocks		Clock for co-processor (See: ../clock/clock-bindings.txt)
- clock-names		Contains the corresponding name for the clock. This
			should be named "main".

Subnodes
--------

Subnodes of the SCP represent rpmsg devices. The names of the devices are not
important. The properties of these nodes are defined by the individual bindings
for the rpmsg devices - but must contain the following property:

- mtk,rpmsg-name	Contains the name for the rpmsg device. Used to match
			the subnode to rpmsg device announced by SCP.

Example:

	scp: scp@10500000 {
		compatible = "mediatek,mt8183-scp";
		reg = <0 0x10500000 0 0x80000>,
		      <0 0x105c0000 0 0x5000>;
		reg-names = "sram", "cfg";
		clocks = <&infracfg CLK_INFRA_SCPSYS>;
		clock-names = "main";
	};
Commit	Line	Data
e47e9887 EL	1	Mediatek SCP Bindings
	2	----------------------------------------
	3
	4	This binding provides support for ARM Cortex M4 Co-processor found on some
	5	Mediatek SoCs.
	6
	7	Required properties:
	8	- compatible Should be "mediatek,mt8183-scp"
503c64cc TBS	9	- reg Should contain the address ranges for memory regions:
	10	SRAM, CFG, and L1TCM.
	11	- reg-names Contains the corresponding names for the memory regions:
	12	"sram", "cfg", and "l1tcm".
e47e9887 EL	13	- clocks Clock for co-processor (See: ../clock/clock-bindings.txt)
	14	- clock-names Contains the corresponding name for the clock. This
	15	should be named "main".
	16
	17	Subnodes
	18	--------
	19
	20	Subnodes of the SCP represent rpmsg devices. The names of the devices are not
	21	important. The properties of these nodes are defined by the individual bindings
	22	for the rpmsg devices - but must contain the following property:
	23
	24	- mtk,rpmsg-name Contains the name for the rpmsg device. Used to match
	25	the subnode to rpmsg device announced by SCP.
	26
	27	Example:
	28
	29	scp: scp@10500000 {
	30	compatible = "mediatek,mt8183-scp";
	31	reg = <0 0x10500000 0 0x80000>,
	32	<0 0x105c0000 0 0x5000>;
	33	reg-names = "sram", "cfg";
	34	clocks = <&infracfg CLK_INFRA_SCPSYS>;
	35	clock-names = "main";
	36	};