[deliverable/linux.git] / Documentation / devicetree / bindings / arm / rockchip / smp-sram.txt

Rockchip SRAM for smp bringup:
------------------------------

Rockchip's smp-capable SoCs use the first part of the sram for the bringup
of the cores. Once the core gets powered up it executes the code that is
residing at the very beginning of the sram.

Therefore a reserved section sub-node has to be added to the mmio-sram
declaration.

Required sub-node properties:
- compatible : should be "rockchip,rk3066-smp-sram"

The rest of the properties should follow the generic mmio-sram discription
found in ../../misc/sram.txt

Example:

	sram: sram@10080000 {
		compatible = "mmio-sram";
		reg = <0x10080000 0x10000>;
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		smp-sram@10080000 {
			compatible = "rockchip,rk3066-smp-sram";
			reg = <0x10080000 0x50>;
		};
	};
Commit	Line	Data
de18e014 HS	1	Rockchip SRAM for smp bringup:
	2	------------------------------
	3
	4	Rockchip's smp-capable SoCs use the first part of the sram for the bringup
	5	of the cores. Once the core gets powered up it executes the code that is
	6	residing at the very beginning of the sram.
	7
	8	Therefore a reserved section sub-node has to be added to the mmio-sram
	9	declaration.
	10
	11	Required sub-node properties:
	12	- compatible : should be "rockchip,rk3066-smp-sram"
	13
	14	The rest of the properties should follow the generic mmio-sram discription
	15	found in ../../misc/sram.txt
	16
	17	Example:
	18
	19	sram: sram@10080000 {
	20	compatible = "mmio-sram";
	21	reg = <0x10080000 0x10000>;
	22	#address-cells = <1>;
	23	#size-cells = <1>;
	24	ranges;
	25
	26	smp-sram@10080000 {
	27	compatible = "rockchip,rk3066-smp-sram";
	28	reg = <0x10080000 0x50>;
	29	};
	30	};