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Date: Tue, 16 Jun 2020 16:56:12 +0100
From: Daniele Alessandrelli <daniele.alessandrelli@...ux.intel.com>
To: linux-arm-kernel@...ts.infradead.org,
Rob Herring <robh+dt@...nel.org>,
Jassi Brar <jassisinghbrar@...il.com>,
Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>
Cc: Paul Murphy <paul.j.murphy@...el.com>,
Daniele Alessandrelli <daniele.alessandrelli@...el.com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Dinh Nguyen <dinguyen@...nel.org>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH 6/7] arm64: dts: keembay: Add device tree for Keem Bay SoC
From: Daniele Alessandrelli <daniele.alessandrelli@...el.com>
Add initial device tree for Intel Movidius SoC code-named Keem Bay.
This initial DT includes nodes for Cortex-A53 cores, UARTs, timers, GIC,
PSCI, PMU, and Keem Bay SCMI mailbox.
Reviewed-by: Dinh Nguyen <dinguyen@...nel.org>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@...el.com>
---
MAINTAINERS | 1 +
arch/arm64/boot/dts/intel/keembay-soc.dtsi | 172 +++++++++++++++++++++
2 files changed, 173 insertions(+)
create mode 100644 arch/arm64/boot/dts/intel/keembay-soc.dtsi
diff --git a/MAINTAINERS b/MAINTAINERS
index 3b919aa8b1bd..610907bf391b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1959,6 +1959,7 @@ M: Paul J. Murphy <paul.j.murphy@...el.com>
M: Daniele Alessandrelli <daniele.alessandrelli@...el.com>
S: Maintained
F: Documentation/devicetree/bindings/arm/keembay.yaml
+F: arch/arm64/boot/dts/intel/keembay-soc.dtsi
F: include/dt-bindings/clock/keembay-clocks.h
F: include/dt-bindings/power/keembay-power.h
diff --git a/arch/arm64/boot/dts/intel/keembay-soc.dtsi b/arch/arm64/boot/dts/intel/keembay-soc.dtsi
new file mode 100644
index 000000000000..bd0a48f24e09
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/keembay-soc.dtsi
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020, Intel Corporation.
+ *
+ * Device tree describing Keem Bay SoC.
+ */
+
+#include <dt-bindings/clock/keembay-clocks.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/keembay-power.h>
+
+/ {
+ compatible = "intel,keembay";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "arm,cortex-a53";
+ device_type = "cpu";
+ reg = <0x0>;
+ enable-method = "psci";
+ clocks = <&scmi_dvfs 0>;
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a53";
+ device_type = "cpu";
+ reg = <0x1>;
+ enable-method = "psci";
+ clocks = <&scmi_dvfs 0>;
+ };
+
+ cpu@2 {
+ compatible = "arm,cortex-a53";
+ device_type = "cpu";
+ reg = <0x2>;
+ enable-method = "psci";
+ clocks = <&scmi_dvfs 0>;
+ };
+
+ cpu@3 {
+ compatible = "arm,cortex-a53";
+ device_type = "cpu";
+ reg = <0x3>;
+ enable-method = "psci";
+ clocks = <&scmi_dvfs 0>;
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ firmware: firmware {
+
+ scmi: scmi {
+ compatible = "arm,scmi";
+ mboxes = <&scmi_mailbox 0>;
+ shmem = <&scmi_sec_shmem>;
+ mbox-names = "tx";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ scmi_devpd: protocol@11 {
+ reg = <0x11>;
+ #power-domain-cells = <1>;
+ };
+
+ scmi_dvfs: protocol@13 {
+ reg = <0x13>;
+ #clock-cells = <1>;
+ };
+
+ scmi_clk: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
+ };
+ };
+
+ scmi_mailbox: scmi_mailbox {
+ compatible = "intel,keembay-scmi-mailbox";
+ #mbox-cells = <1>;
+ memory-region = <&scmi_sec_shmem>;
+ u-boot,dm-pre-reloc;
+ };
+
+ gic: interrupt-controller@...00000 {
+ compatible = "arm,gic-v3";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x0 0x20500000 0x0 0x20000>, /* GICD */
+ <0x0 0x20580000 0x0 0x80000>; /* GICR */
+ /* VGIC maintenance interrupt */
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ /* Secure, non-secure, virtual, and hypervisor */
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ pmu {
+ compatible = "arm,armv8-pmuv3";
+ interrupts = <GIC_PPI 0x7 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ uart0: serial@...50000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x0 0x20150000 0x0 0x100>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "baudclk", "apb_pclk";
+ clocks = <&scmi_clk KEEM_BAY_PSS_AUX_UART0>,
+ <&scmi_clk KEEM_BAY_PSS_UART0>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart1: serial@...60000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x0 0x20160000 0x0 0x100>;
+ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "baudclk", "apb_pclk";
+ clocks = <&scmi_clk KEEM_BAY_PSS_AUX_UART1>,
+ <&scmi_clk KEEM_BAY_PSS_UART1>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart2: serial@...70000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x0 0x20170000 0x0 0x100>;
+ interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "baudclk", "apb_pclk";
+ clocks = <&scmi_clk KEEM_BAY_PSS_AUX_UART2>,
+ <&scmi_clk KEEM_BAY_PSS_UART2>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+
+ uart3: serial@...80000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x0 0x20180000 0x0 0x100>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "baudclk", "apb_pclk";
+ clocks = <&scmi_clk KEEM_BAY_PSS_AUX_UART3>,
+ <&scmi_clk KEEM_BAY_PSS_UART3>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ status = "disabled";
+ };
+ };
+};
--
2.26.2
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