[PATCH v1 1/1] arm: dts: add Nuvoton NPCM750 device tree

From: Tomer Maimon
Date: Wed Mar 21 2018 - 11:38:42 EST

Add a common device tree for all Nuvoton NPCM7xx BMCs and a board
specific device tree for the NPCM750 (Poleg) evaluation board.

Signed-off-by: Tomer Maimon <tmaimon77@xxxxxxxxx>
---
arch/arm/boot/dts/Makefile | 2 +
arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi | 187 ++++++++++++++++++++++++++
arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 39 ++++++
arch/arm/boot/dts/nuvoton-npcm750.dtsi | 45 +++++++
4 files changed, 273 insertions(+)
create mode 100644 arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi
create mode 100644 arch/arm/boot/dts/nuvoton-npcm750-evb.dts
create mode 100644 arch/arm/boot/dts/nuvoton-npcm750.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index ade7a38543dc..ba3bfa674e32 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -304,6 +304,8 @@ dtb-$(CONFIG_ARCH_LPC18XX) += \
dtb-$(CONFIG_ARCH_LPC32XX) += \
lpc3250-ea3250.dtb \
lpc3250-phy3250.dtb
+dtb-$(CONFIG_ARCH_NPCM7XX) += \
+ nuvoton-npcm750-evb.dtb
dtb-$(CONFIG_MACH_MESON6) += \
meson6-atv1200.dtb
dtb-$(CONFIG_MACH_MESON8) += \
diff --git a/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi b/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi
new file mode 100644
index 000000000000..d2d0761295a4
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology tomer.maimon@xxxxxxxxxxx
+// Copyright 2018 Google, Inc.
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+
+ /* external reference clock */
+ clk_refclk: clk_refclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ clock-output-names = "refclk";
+ };
+
+ /* external reference clock for cpu. float in normal operation */
+ clk_sysbypck: clk_sysbypck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <800000000>;
+ clock-output-names = "sysbypck";
+ };
+
+ /* external reference clock for MC. float in normal operation */
+ clk_mcbypck: clk_mcbypck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <800000000>;
+ clock-output-names = "mcbypck";
+ };
+
+ /* external clock signal rg1refck, supplied by the phy */
+ clk_rg1refck: clk_rg1refck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ clock-output-names = "clk_rg1refck";
+ };
+
+ /* external clock signal rg2refck, supplied by the phy */
+ clk_rg2refck: clk_rg2refck {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ clock-output-names = "clk_rg2refck";
+ };
+
+ clk_xin: clk_xin {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ clock-output-names = "clk_xin";
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x0 0xf0000000 0x00900000>;
+
+ gcr: gcr@800000 {
+ compatible = "nuvoton,npcm750-gcr", "syscon",
+ "simple-mfd";
+ reg = <0x800000 0x1000>;
+ };
+
+ scu: scu@3fe000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x3fe000 0x1000>;
+ };
+
+ l2: cache-controller@3fc000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x3fc000 0x1000>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ cache-unified;
+ cache-level = <2>;
+ clocks = <&clk 10>;
+ arm,shared-override;
+ };
+
+ gic: interrupt-controller@3ff000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x3ff000 0x1000>,
+ <0x3fe100 0x100>;
+ };
+ };
+
+ ahb {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges;
+
+ clk: clock-controller@f0801000 {
+ compatible = "nuvoton,npcm750-clk", "syscon";
+ #clock-cells = <1>;
+ clock-controller;
+ reg = <0xf0801000 0x1000>;
+ clock-names = "refclk", "sysbypck", "mcbypck";
+ clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>;
+ };
+
+ apb {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&gic>;
+ ranges = <0x0 0xf0000000 0x00300000>;
+
+ timer0: timer@8000 {
+ compatible = "nuvoton,npcm750-timer";
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x8000 0x50>;
+ clocks = <&clk 5>;
+ };
+
+ watchdog0: watchdog@801C {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x801C 0x4>;
+ status = "disabled";
+ clocks = <&clk 5>;
+ };
+
+ watchdog1: watchdog@901C {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x901C 0x4>;
+ status = "disabled";
+ clocks = <&clk 5>;
+ };
+
+ watchdog2: watchdog@a01C {
+ compatible = "nuvoton,npcm750-wdt";
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xa01C 0x4>;
+ status = "disabled";
+ clocks = <&clk 5>;
+ };
+
+ serial0: serial@1000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x1000 0x1000>;
+ clocks = <&clk 6>;
+ interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial1: serial@2000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x2000 0x1000>;
+ clocks = <&clk 6>;
+ interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial2: serial@3000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x3000 0x1000>;
+ clocks = <&clk 6>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+
+ serial3: serial@4000 {
+ compatible = "nuvoton,npcm750-uart";
+ reg = <0x4000 0x1000>;
+ clocks = <&clk 6>;
+ interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
new file mode 100644
index 000000000000..15f744f1beea
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology tomer.maimon@xxxxxxxxxxx
+// Copyright 2018 Google, Inc.
+
+/dts-v1/;
+#include "nuvoton-npcm750.dtsi"
+
+/ {
+ model = "Nuvoton npcm750 Development Board (Device Tree)";
+ compatible = "nuvoton,npcm750";
+
+ chosen {
+ stdout-path = &serial3;
+ };
+
+ memory {
+ reg = <0 0x40000000>;
+ };
+};
+
+&watchdog1 {
+ status = "okay";
+};
+
+&serial0 {
+ status = "okay";
+};
+
+&serial1 {
+ status = "okay";
+};
+
+&serial2 {
+ status = "okay";
+};
+
+&serial3 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/nuvoton-npcm750.dtsi b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
new file mode 100644
index 000000000000..5afdc730fc4a
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-npcm750.dtsi
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Nuvoton Technology tomer.maimon@xxxxxxxxxxx
+// Copyright 2018 Google, Inc.
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "nuvoton-common-npcm7xx.dtsi"
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&gic>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "nuvoton,npcm750-smp";
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk 0>;
+ clock-names = "clk_cpu";
+ reg = <0>;
+ next-level-cache = <&l2>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ clocks = <&clk 0>;
+ clock-names = "clk_cpu";
+ reg = <1>;
+ next-level-cache = <&l2>;
+ };
+ };
+ soc {
+ timer@3fe600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x3fe600 0x20>;
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
+ IRQ_TYPE_LEVEL_HIGH)>;
+ clocks = <&clk 5>;
+ };
+ };
+};
--
2.14.1