[PATCH v2] qcom: ipq40xx: Add basic board/dts support for IPQ40XX SoC

From: Varadarajan Narayanan
Date: Fri Aug 21 2015 - 06:33:13 EST

Add initial dts files and SoC support for IPQ40XX

Signed-off-by: Varadarajan Narayanan <varada@xxxxxxxxxxxxxx>
---
Changes in v2:
- Added devicetree bindings documentation

.../devicetree/bindings/clock/qca,gcnt.txt | 14 ++++
Documentation/devicetree/bindings/ipq.txt | 16 ++++
arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/qcom-ipq40xx-r3pc.dts | 33 +++++++++
arch/arm/boot/dts/qcom-ipq40xx.dtsi | 86 ++++++++++++++++++++++
arch/arm/configs/ipq_defconfig | 1 +
arch/arm/mach-qcom/Kconfig | 4 +
arch/arm/mach-qcom/board.c | 1 +
8 files changed, 157 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/clock/qca,gcnt.txt
create mode 100644 Documentation/devicetree/bindings/ipq.txt
create mode 100644 arch/arm/boot/dts/qcom-ipq40xx-r3pc.dts
create mode 100644 arch/arm/boot/dts/qcom-ipq40xx.dtsi

diff --git a/Documentation/devicetree/bindings/clock/qca,gcnt.txt b/Documentation/devicetree/bindings/clock/qca,gcnt.txt
new file mode 100644
index 0000000..dd0d71e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qca,gcnt.txt
@@ -0,0 +1,14 @@
+QCA Global Counter
+------------------------------------------------
+
+Required properties :
+- compatible : "qcom,qca-gcnt"
+
+- reg : shall contain base register location and length
+
+Example:
+
+ counter {
+ compatible = "qcom,qca-gcnt";
+ reg = <0x004a1000 0x4>;
+ };
diff --git a/Documentation/devicetree/bindings/ipq.txt b/Documentation/devicetree/bindings/ipq.txt
new file mode 100644
index 0000000..7d56bd0
--- /dev/null
+++ b/Documentation/devicetree/bindings/ipq.txt
@@ -0,0 +1,16 @@
+Qualcomm IPQ device tree bindings
+---------------------------------
+
+System on Chip
+
+Device tree must specify which SoC it uses, with one of the
+following compatible strings
+
+ "qcom,ipq40xx"
+
+Platform
+
+Device tree must specify which Platform it uses, with one of the
+following compatible strings
+
+ "qcom,ipq40xx-r3pc"
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 246473a..6b4caee 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -477,7 +477,8 @@ dtb-$(CONFIG_ARCH_QCOM) += \
qcom-ipq8064-ap148.dtb \
qcom-msm8660-surf.dtb \
qcom-msm8960-cdp.dtb \
- qcom-msm8974-sony-xperia-honami.dtb
+ qcom-msm8974-sony-xperia-honami.dtb \
+ qcom-ipq40xx-r3pc.dtb
dtb-$(CONFIG_ARCH_REALVIEW) += \
arm-realview-pb1176.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += \
diff --git a/arch/arm/boot/dts/qcom-ipq40xx-r3pc.dts b/arch/arm/boot/dts/qcom-ipq40xx-r3pc.dts
new file mode 100644
index 0000000..7e4e629
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-ipq40xx-r3pc.dts
@@ -0,0 +1,33 @@
+/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "qcom-ipq40xx.dtsi"
+
+/ {
+ model = "Qualcomm Technologies, Inc. IPQ40XX R3PC";
+ compatible = "qcom,ipq40xx-r3pc", "qcom,ipq40xx";
+
+ memory {
+ device_type = "memory";
+ reg = <0x80000000 0x20000000>; /* 512MB */
+ };
+
+ chosen {
+ bootargs = "root=/dev/ram rw init=/init console=ttyMSM0,115200n8 initrd=0x82000000,0x000E2246";
+ };
+
+ soc {
+ serial@78b0000 {
+ status = "ok";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/qcom-ipq40xx.dtsi b/arch/arm/boot/dts/qcom-ipq40xx.dtsi
new file mode 100644
index 0000000..76c55a3
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-ipq40xx.dtsi
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+
+#include "skeleton.dtsi"
+
+/ {
+ model = "Qualcomm Technologies, Inc. IPQ40XX";
+ compatible = "qcom,ipq40xx";
+ interrupt-parent = <&intc>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x1>;
+ };
+
+ cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x2>;
+ };
+
+ cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x3>;
+ };
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ compatible = "simple-bus";
+
+ intc: interrupt-controller@b000000 {
+ compatible = "qcom,msm-qgic2";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x0b000000 0x1000>,
+ <0x0b002000 0x1000>;
+ };
+
+ counter {
+ compatible = "qcom,qca-gcnt";
+ reg = <0x004a1000 0x4>;
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <1 2 0xf08>,
+ <1 3 0xf08>,
+ <1 4 0xf08>,
+ <1 1 0xf08>;
+ clock-frequency = <20833333>;
+ };
+
+ serial@78b0000 {
+ compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
+ reg = <0x78b0000 0x200>;
+ interrupts = <0 108 0>;
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm/configs/ipq_defconfig b/arch/arm/configs/ipq_defconfig
index 1cabd8b..054a159 100644
--- a/arch/arm/configs/ipq_defconfig
+++ b/arch/arm/configs/ipq_defconfig
@@ -22,6 +22,7 @@ CONFIG_ARCH_MSM8X60=y
CONFIG_ARCH_MSM8960=y
CONFIG_ARCH_MSM8974=y
CONFIG_ARCH_IPQ8064=y
+CONFIG_ARCH_IPQ40XX=y
CONFIG_SMP=y
CONFIG_PREEMPT=y
CONFIG_AEABI=y
diff --git a/arch/arm/mach-qcom/Kconfig b/arch/arm/mach-qcom/Kconfig
index fab49a2..3add9f9 100644
--- a/arch/arm/mach-qcom/Kconfig
+++ b/arch/arm/mach-qcom/Kconfig
@@ -26,4 +26,8 @@ config ARCH_IPQ8064
bool "Enable support for IPQ806x"
select CLKSRC_QCOM

+config ARCH_IPQ40XX
+ bool "Enable support for IPQ40XX"
+ select HAVE_ARM_ARCH_TIMER
+
endif
diff --git a/arch/arm/mach-qcom/board.c b/arch/arm/mach-qcom/board.c
index 6d8bbf7..566487d 100644
--- a/arch/arm/mach-qcom/board.c
+++ b/arch/arm/mach-qcom/board.c
@@ -22,6 +22,7 @@ static const char * const qcom_dt_match[] __initconst = {
"qcom,ipq8064",
"qcom,msm8660-surf",
"qcom,msm8960-cdp",
+ "qcom,ipq40xx-r3pc",
NULL
};

--
1.8.2.1

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