From: Leo Yan <leo.yan@xxxxxxxxxx>
Enable SRAM node and stub clock node for Hi6220, which uses mailbox
channel 1 for CPU's frequency change.
Furthermore, add the CPU clock phandle in CPU's node and using
operating-points-v2 to register operating points. So can be used by
cpufreq-dt driver.
Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
Signed-off-by: Wei Xu <xuwei5@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 56 +++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 07b211b..a7ca40b 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -82,6 +82,11 @@
device_type = "cpu";
reg = <0x0 0x0>;
enable-method = "psci";
+ clocks = <&stub_clock 0>;
+ operating-points-v2 = <&cpu_opp_table>;
+ cooling-min-level = <4>;
+ cooling-max-level = <0>;
+ #cooling-cells = <2>; /* min followed by max */
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -90,6 +95,7 @@
device_type = "cpu";
reg = <0x0 0x1>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -98,6 +104,7 @@
device_type = "cpu";
reg = <0x0 0x2>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -106,6 +113,7 @@
device_type = "cpu";
reg = <0x0 0x3>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -114,6 +122,7 @@
device_type = "cpu";
reg = <0x0 0x100>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -122,6 +131,7 @@
device_type = "cpu";
reg = <0x0 0x101>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -130,6 +140,7 @@
device_type = "cpu";
reg = <0x0 0x102>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
@@ -138,10 +149,42 @@
device_type = "cpu";
reg = <0x0 0x103>;
enable-method = "psci";
+ operating-points-v2 = <&cpu_opp_table>;
cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
};
};
+ cpu_opp_table: cpu_opp_table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <208000000>;
+ opp-microvolt = <1040000>;
+ clock-latency-ns = <500000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <432000000>;
+ opp-microvolt = <1040000>;
+ clock-latency-ns = <500000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <729000000>;
+ opp-microvolt = <1090000>;
+ clock-latency-ns = <500000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <960000000>;
+ opp-microvolt = <1180000>;
+ clock-latency-ns = <500000>;
+ };
+ opp04 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <1330000>;
+ clock-latency-ns = <500000>;
+ };
+ };
+
gic: interrupt-controller@f6801000 {
compatible = "arm,gic-400";
reg = <0x0 0xf6801000 0 0x1000>, /* GICD */
@@ -169,6 +212,11 @@
#size-cells = <2>;
ranges;
+ sram: sram@fff80000 {
+ compatible = "hisilicon,hi6220-sramctrl", "syscon";
+ reg = <0x0 0xfff80000 0x0 0x12000>;
+ };
+
ao_ctrl: ao_ctrl@f7800000 {
compatible = "hisilicon,hi6220-aoctrl", "syscon";
reg = <0x0 0xf7800000 0x0 0x2000>;
@@ -194,6 +242,14 @@
#clock-cells = <1>;
};
+ stub_clock: stub_clock {
+ compatible = "hisilicon,hi6220-stub-clk";
+ hisilicon,hi6220-clk-sram = <&sram>;
+ #clock-cells = <1>;
+ mbox-names = "mbox-tx";
+ mboxes = <&mailbox 1 0 11>;
+ };
+
uart0: uart@f8015000 { /* console */
compatible = "arm,pl011", "arm,primecell";
reg = <0x0 0xf8015000 0x0 0x1000>;
--
1.9.1
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