[PATCH v3] qcom: ipq40xx: Add basic board/dts support for IPQ40XX SoC
From: Varadarajan Narayanan <hidden>
Date: 2015-08-24 09:28:29
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, open firmware and flattened device tree bindings, the rest · Maintainers:
Arnd Bergmann, Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij, Russell King, Bjorn Andersson, Konrad Dybcio, 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 Changes in v3: - Split 'gcnt' into a separate patch - Added the new entries to Makefiles, Kconfig & board.c in sorted order - Used "qcom,ipq40xx" instead of "qcom,ipq40xx-r3pc" in board.c Documentation/devicetree/bindings/qcom.txt | 16 ++++++ arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/qcom-ipq40xx-r3pc.dts | 33 ++++++++++++ arch/arm/boot/dts/qcom-ipq40xx.dtsi | 81 ++++++++++++++++++++++++++++++ arch/arm/configs/ipq_defconfig | 1 + arch/arm/mach-qcom/Kconfig | 4 ++ arch/arm/mach-qcom/board.c | 1 + 7 files changed, 137 insertions(+) create mode 100644 Documentation/devicetree/bindings/qcom.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/qcom.txt b/Documentation/devicetree/bindings/qcom.txt
new file mode 100644
index 0000000..7d56bd0
--- /dev/null
+++ b/Documentation/devicetree/bindings/qcom.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..d20d49c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile@@ -474,6 +474,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \ qcom-apq8074-dragonboard.dtb \ qcom-apq8084-ifc6540.dtb \ qcom-apq8084-mtp.dtb \ + qcom-ipq40xx-r3pc.dtb \ qcom-ipq8064-ap148.dtb \ qcom-msm8660-surf.dtb \ qcom-msm8960-cdp.dtb \
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..f572f38
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-ipq40xx.dtsi@@ -0,0 +1,81 @@ +/* + * 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>; + }; + + 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..89bf8ad 100644
--- a/arch/arm/configs/ipq_defconfig
+++ b/arch/arm/configs/ipq_defconfig@@ -21,6 +21,7 @@ CONFIG_ARCH_QCOM=y CONFIG_ARCH_MSM8X60=y CONFIG_ARCH_MSM8960=y CONFIG_ARCH_MSM8974=y +CONFIG_ARCH_IPQ40XX=y CONFIG_ARCH_IPQ8064=y CONFIG_SMP=y CONFIG_PREEMPT=y
diff --git a/arch/arm/mach-qcom/Kconfig b/arch/arm/mach-qcom/Kconfig
index fab49a2..70812aa 100644
--- a/arch/arm/mach-qcom/Kconfig
+++ b/arch/arm/mach-qcom/Kconfig@@ -22,6 +22,10 @@ config ARCH_MSM8974 bool "Enable support for MSM8974" select HAVE_ARM_ARCH_TIMER +config ARCH_IPQ40XX + bool "Enable support for IPQ40XX" + select HAVE_ARM_ARCH_TIMER + config ARCH_IPQ8064 bool "Enable support for IPQ806x" select CLKSRC_QCOM
diff --git a/arch/arm/mach-qcom/board.c b/arch/arm/mach-qcom/board.c
index 6d8bbf7..af9e247 100644
--- a/arch/arm/mach-qcom/board.c
+++ b/arch/arm/mach-qcom/board.c@@ -18,6 +18,7 @@ static const char * const qcom_dt_match[] __initconst = { "qcom,apq8064", "qcom,apq8074-dragonboard", "qcom,apq8084", + "qcom,ipq40xx", "qcom,ipq8062", "qcom,ipq8064", "qcom,msm8660-surf",
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1.8.2.1