[PATCH v2] qcom: ipq40xx: Add basic board/dts support for IPQ40XX SoC
From: Varadarajan Narayanan <hidden>
Date: 2015-08-21 10:33:08
Also in:
linux-arm-msm, linux-devicetree, lkml
Subsystem:
arm and arm64 soc sub-architectures (common parts), arm port, arm/qualcomm mailing list, arm/qualcomm support, common clk framework, open firmware and flattened device tree bindings, the rest · Maintainers:
Arnd Bergmann, Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij, Russell King, Bjorn Andersson, Konrad Dybcio, Michael Turquette, Stephen Boyd, Rob Herring, Conor Dooley, Linus Torvalds
Add initial dts files and SoC support for IPQ40XX Signed-off-by: Varadarajan Narayanan <redacted> --- 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 at 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 at 0 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x0>; + }; + + cpu at 1 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x1>; + }; + + cpu at 2 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x2>; + }; + + cpu at 3 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x3>; + }; + }; + + soc { + #address-cells = <1>; + #size-cells = <1>; + ranges; + compatible = "simple-bus"; + + intc: interrupt-controller at 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 at 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 };
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1.8.2.1