Hi Marc，
Thanks for reply.
See below.
在 2021/4/21 下午9:36, Marc Zyngier 写道:
On Wed, 21 Apr 2021 07:59:20 +0100,
<cl@xxxxxxxxxxxxxx> wrote:
From: Liang Chen <cl@xxxxxxxxxxxxxx>
RK3568 is a high-performance and low power quad-core application processor
designed for personal mobile internet device and AIoT equipments.
This patch add basic core dtsi file for it.
Signed-off-by: Liang Chen <cl@xxxxxxxxxxxxxx>
---
.../boot/dts/rockchip/rk3568-pinctrl.dtsi | 2789 +++++++++++++++++
arch/arm64/boot/dts/rockchip/rk3568.dtsi | 795 +++++
.../boot/dts/rockchip/rockchip-pinconf.dtsi | 346 ++
3 files changed, 3930 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
create mode 100644 arch/arm64/boot/dts/rockchip/rk3568.dtsi
create mode 100644 arch/arm64/boot/dts/rockchip/rockchip-pinconf.dtsi
[...]
diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
new file mode 100644
index 000000000000..ac8db2f54f2b
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
@@ -0,0 +1,795 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
+ */
+
+#include <dt-bindings/clock/rk3568-cru.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/soc/rockchip,boot-mode.h>
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/thermal/thermal.h>
+
+/ {
+ compatible = "rockchip,rk3568";
+
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aliases {
+ serial2 = &uart2;
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a55";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ clocks = <&scmi_clk 0>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ #cooling-cells = <2>;
+ };
+ cpu1: cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a55";
+ reg = <0x0 0x100>;
+ enable-method = "psci";
+ operating-points-v2 = <&cpu0_opp_table>;
+ };
+ cpu2: cpu@200 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a55";
+ reg = <0x0 0x200>;
+ enable-method = "psci";
+ operating-points-v2 = <&cpu0_opp_table>;
+ };
+ cpu3: cpu@300 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a55";
+ reg = <0x0 0x300>;
+ enable-method = "psci";
+ operating-points-v2 = <&cpu0_opp_table>;
+ };
+ };
+
+ cpu0_opp_table: cpu0-opp-table {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-microvolt = <825000 825000 1150000>;
+ clock-latency-ns = <40000>;
+ };
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <825000 825000 1150000>;
+ };
+ opp-816000000 {
+ opp-hz = /bits/ 64 <816000000>;
+ opp-microvolt = <825000 825000 1150000>;
+ opp-suspend;
+ };
+ opp-1104000000 {
+ opp-hz = /bits/ 64 <1104000000>;
+ opp-microvolt = <825000 825000 1150000>;
+ };
+ opp-1416000000 {
+ opp-hz = /bits/ 64 <1416000000>;
+ opp-microvolt = <900000 900000 1150000>;
+ };
+ opp-1608000000 {
+ opp-hz = /bits/ 64 <1608000000>;
+ opp-microvolt = <975000 975000 1150000>;
+ };
+ opp-1800000000 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1050000 1050000 1150000>;
+ };
+ opp-1992000000 {
+ opp-hz = /bits/ 64 <1992000000>;
+ opp-microvolt = <1150000 1150000 1150000>;
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a55-pmu", "arm,armv8-pmuv3";
+ interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ firmware {
+ scmi: scmi {
+ compatible = "arm,scmi-smc";
+ shmem = <&scmi_shmem>;
+ arm,smc-id = <0x82000010>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ scmi_clk: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
+ };
+
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
This doesn't match the GICv3 binding for PPIs.
fixed in V2.
+ arm,no-tick-in-suspend;
Oh, really? :-(
yes, arm arch timer will stop in suspend mode on rk3568.
+ };
+
+ xin24m: xin24m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ clock-output-names = "xin24m";
+ };
+
+ xin32k: xin32k {
+ compatible = "fixed-clock";
+ clock-frequency = <32768>;
+ clock-output-names = "xin32k";
+ #clock-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&clk32k_out0>;
+ };
+
+ scmi_shmem: scmi-shmem@10f000 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x0 0x0010f000 0x0 0x100>;
+ };
+
+ gic: interrupt-controller@fd400000 {
+ compatible = "arm,gic-v3";
+ #interrupt-cells = <3>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ interrupt-controller;
+
+ reg = <0x0 0xfd400000 0 0x10000>, /* GICD */
+ <0x0 0xfd460000 0 0xc0000>; /* GICR */
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
Please add the 'mbi-alias' property, which should map onto the GICA
range that GIC600 provides. At least this could be useful to have MSIs
despite the lack of a working ITS. We can work out the usable ranges
on a per-board basis.
Thanks, we will try mbi-alias later, but we are afraid that the number
of SPI is not enough.
Thanks,
M.
