1* Renesas SMP SRAM 2 3Renesas R-Car Gen2 and RZ/G1 SoCs need a small piece of SRAM for the jump stub 4for secondary CPU bringup and CPU hotplug. 5This memory is reserved by adding a child node to a "mmio-sram" node, cfr. 6Documentation/devicetree/bindings/sram/sram.txt. 7 8Required child node properties: 9 - compatible: Must be "renesas,smp-sram", 10 - reg: Address and length of the reserved SRAM. 11 The full physical (bus) address must be aligned to a 256 KiB boundary. 12 13 14Example: 15 16 icram1: sram@e63c0000 { 17 compatible = "mmio-sram"; 18 reg = <0 0xe63c0000 0 0x1000>; 19 #address-cells = <1>; 20 #size-cells = <1>; 21 ranges = <0 0 0xe63c0000 0x1000>; 22 23 smp-sram@0 { 24 compatible = "renesas,smp-sram"; 25 reg = <0 0x10>; 26 }; 27 }; 28