This patch adds basic board support for APQ8074 Dragonboard
which belongs to the Snapdragon 800 family.
For now, just support a basic machine with device tree.

Signed-off-by: Rohit Vaswani <rvasw...@codeaurora.org>
---
 arch/arm/boot/dts/Makefile                     |  3 ++-
 arch/arm/boot/dts/qcom-apq8074-dragonboard.dts |  6 +++++
 arch/arm/boot/dts/qcom-msm8974.dtsi            | 35 ++++++++++++++++++++++++++
 arch/arm/mach-msm/Kconfig                      | 13 ++++++++++
 arch/arm/mach-msm/board-dt.c                   |  9 +++++++
 5 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
 create mode 100644 arch/arm/boot/dts/qcom-msm8974.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 000cf76..e71a3ec 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -102,7 +102,8 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
        kirkwood-openblocks_a6.dtb
 dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
-       msm8960-cdp.dtb
+       msm8960-cdp.dtb \
+       qcom-apq8074-dragonboard.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
        armada-370-mirabox.dtb \
        armada-370-netgear-rn102.dtb \
diff --git a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts 
b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
new file mode 100644
index 0000000..bb6f3c4
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
@@ -0,0 +1,6 @@
+/include/ "qcom-msm8974.dtsi"
+
+/ {
+       model = "Qualcomm APQ8074 Dragonboard";
+       compatible = "qcom,apq8074-dragonboard", "qcom,apq8074";
+};
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi 
b/arch/arm/boot/dts/qcom-msm8974.dtsi
new file mode 100644
index 0000000..f04b643
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -0,0 +1,35 @@
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+       model = "Qualcomm MSM8974";
+       compatible = "qcom,msm8974";
+       interrupt-parent = <&intc>;
+
+       soc: soc { };
+};
+
+&soc {
+       #address-cells = <1>;
+       #size-cells = <1>;
+       ranges;
+       compatible = "simple-bus";
+
+       intc: interrupt-controller@f9000000 {
+               compatible = "qcom,msm-qgic2";
+               interrupt-controller;
+               #interrupt-cells = <3>;
+               reg = <0xf9000000 0x1000>,
+                     <0xf9002000 0x1000>;
+       };
+
+       timer {
+               compatible = "arm,armv7-timer";
+               interrupts = <1 2 0xf08>,
+                            <1 3 0xf08>,
+                            <1 4 0xf08>,
+                            <1 1 0xf08>;
+               clock-frequency = <19200000>;
+       };
+};
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 2586c28..086bcb9 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -64,6 +64,19 @@ config ARCH_MSM_DT
        select SPARSE_IRQ
        select USE_OF
 
+config ARCH_MSM8974
+       bool "MSM8974"
+       select ARM_GIC
+       select CPU_V7
+       select HAVE_ARM_ARCH_TIMER
+       select HAVE_SMP
+       select MSM_SCM if SMP
+       select USE_OF
+
+config ARCH_MSM_DT
+       def_bool y
+       depends on (ARCH_MSM8X60 || ARCH_MSM8960 || ARCH_MSM8974)
+
 config MSM_HAS_DEBUG_UART_HS
        bool
 
diff --git a/arch/arm/mach-msm/board-dt.c b/arch/arm/mach-msm/board-dt.c
index 266a280..5211e80 100644
--- a/arch/arm/mach-msm/board-dt.c
+++ b/arch/arm/mach-msm/board-dt.c
@@ -26,7 +26,16 @@ static const char * const msm_dt_match[] __initconst = {
        NULL
 };
 
+static const char * const apq8074_dt_match[] __initconst = {
+       "qcom,apq8074-dragonboard",
+       NULL
+};
+
 DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)")
        .smp = smp_ops(msm_smp_ops),
        .dt_compat = msm_dt_match,
 MACHINE_END
+
+DT_MACHINE_START(APQ_DT, "Qualcomm MSM (Flattened Device Tree)")
+       .dt_compat = apq8074_dt_match,
+MACHINE_END
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

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