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(RFC) CPUFreq related changes in the device-tree #1

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(RFC) CPUFreq related changes in the device-tree #1

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d722514
r8a7795-salvator-x-dom0.dts: Enable Xen based Cpufreq
Sep 29, 2017
a8e2349
r8a7795-salvator-x-dom0.dts: Add SCPI related nodes
Sep 29, 2017
1132752
r8a7795-salvator-x-dom0.dts: Clarify SCPI related nodes
Oct 4, 2017
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50 changes: 49 additions & 1 deletion arch/arm64/boot/dts/renesas/r8a7795-salvator-x-dom0.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@
};

chosen {
bootargs = "dom0_mem=752M console=dtuart dtuart=serial0 dom0_max_vcpus=8 bootscrub=0 flask_enforcing=1 loglvl=all";
bootargs = "dom0_mem=752M console=dtuart dtuart=serial0 dom0_max_vcpus=8 bootscrub=0 flask_enforcing=1 loglvl=all cpufreq=xen:ondemand";
xen,dom0-bootargs = "console=hvc0 root=/dev/nfs nfsroot=192.168.1.1:/tftpboot/dom0-rootfs ip=192.168.1.21 rw rootwait rootfstype=ext4 ignore_loglevel cma=128M";
modules {
#address-cells = <2>;
Expand All @@ -71,6 +71,54 @@
<0x7 0x00000000 0x0 0x40000000>;
};

mailbox: mailbox@0 {
compatible = "arm,smc-mbox";
#mbox-cells = <1>;
arm,func-ids = <0x82000001>, <0x82000002>;
method = "smc";
};

sram: sram@47FFF000 {
compatible = "mmio-sram";
/*compatible = "renesas,rcar-sram-ns", "mmio-sram";*/
reg = <0x0 0x47FFF000 0x0 0x1000>;

#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x0 0x47FFF000 0x1000>;

scp_shmem: scp_shmem@0 {
compatible = "mmio-sram";
/*compatible = "renesas,rcar-scp-shmem";*/
reg = <0x0 0x200>;
};
};

scpi {
compatible = "arm,scpi";
mboxes = <&mailbox 0>;
shmem = <&scp_shmem>;

clocks {
compatible = "arm,scpi-clocks";

scpi_dvfs: scpi_dvfs@0 {
compatible = "arm,scpi-dvfs-clocks";
#clock-cells = <1>;
clock-indices = <0>, <1>;
clock-output-names = "cpu_a57_clk", "cpu_a53_clk";
};

scpi_clk: scpi_clk@0 {
compatible = "arm,scpi-variable-clocks";
#clock-cells = <1>;
clock-indices = <2>;
clock-output-names = "gpu_clk";
};
};
};


avb-mch {
compatible = "renesas,avb-mch-gen3";
reg = <0 0xec5a0100 0 0x100>; /* ADG_AVB */
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