This patch adds basic board support for MSM8974 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/msm8974-db.dts  | 26 ++++++++++++++++++++++++++
 arch/arm/mach-msm/Kconfig         | 21 ++++++++++++++++++---
 arch/arm/mach-msm/Makefile        |  1 +
 arch/arm/mach-msm/board-dt-8974.c | 23 +++++++++++++++++++++++
 5 files changed, 70 insertions(+), 4 deletions(-)
 create mode 100644 arch/arm/boot/dts/msm8974-db.dts
 create mode 100644 arch/arm/mach-msm/board-dt-8974.c

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 641b3c9a..62cea36 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -97,7 +97,8 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
        kirkwood-openblocks_a6.dtb
 dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
-       msm8960-cdp.dtb
+       msm8960-cdp.dtb \
+       msm8974-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
        armada-370-mirabox.dtb \
        armada-370-rd.dtb \
diff --git a/arch/arm/boot/dts/msm8974-db.dts b/arch/arm/boot/dts/msm8974-db.dts
new file mode 100644
index 0000000..badfc61
--- /dev/null
+++ b/arch/arm/boot/dts/msm8974-db.dts
@@ -0,0 +1,26 @@
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+       model = "Qualcomm MSM8974 Dragonboard";
+       compatible = "qcom,msm8974-db", "qcom,msm8974";
+       interrupt-parent = <&intc>;
+
+       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 614e41e..343675b 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -1,12 +1,12 @@
 if ARCH_MSM
 
 comment "Qualcomm MSM SoC Type"
-       depends on (ARCH_MSM8X60 || ARCH_MSM8960)
+       depends on ARCH_MSM_DT
 
 choice
        prompt "Qualcomm MSM SoC Type"
        default ARCH_MSM7X00A
-       depends on !(ARCH_MSM8X60 || ARCH_MSM8960)
+       depends on !ARCH_MSM_DT
 
 config ARCH_MSM7X00A
        bool "MSM7x00A / MSM7x01A"
@@ -60,6 +60,19 @@ config ARCH_MSM8960
        select MSM_SCM if SMP
        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
 
@@ -68,6 +81,7 @@ config MSM_SOC_REV_A
 
 config  ARCH_MSM_ARM11
        bool
+
 config  ARCH_MSM_SCORPION
        bool
 
@@ -75,6 +89,7 @@ config  MSM_VIC
        bool
 
 menu "Qualcomm MSM Board Type"
+       depends on !ARCH_MSM_DT
 
 config MACH_HALIBUT
        depends on ARCH_MSM
@@ -121,7 +136,7 @@ config MSM_SMD
        bool
 
 config MSM_GPIOMUX
-       depends on !(ARCH_MSM8X60 || ARCH_MSM8960)
+       depends on !ARCH_MSM_DT
        bool "MSM V1 TLMM GPIOMUX architecture"
        help
          Support for MSM V1 TLMM GPIOMUX architecture.
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index d257ff4..80e3b15 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -29,5 +29,6 @@ obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o 
devices-msm7x30.o
 obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o
 obj-$(CONFIG_ARCH_MSM8X60) += board-dt-8660.o
 obj-$(CONFIG_ARCH_MSM8960) += board-dt-8960.o
+obj-$(CONFIG_ARCH_MSM8974) += board-dt-8974.o
 obj-$(CONFIG_MSM_GPIOMUX) += gpiomux.o
 obj-$(CONFIG_ARCH_QSD8X50) += gpiomux-8x50.o
diff --git a/arch/arm/mach-msm/board-dt-8974.c 
b/arch/arm/mach-msm/board-dt-8974.c
new file mode 100644
index 0000000..697623e
--- /dev/null
+++ b/arch/arm/mach-msm/board-dt-8974.c
@@ -0,0 +1,23 @@
+/* Copyright (c) 2013, 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 <linux/of_platform.h>
+#include <asm/mach/arch.h>
+
+static const char * const msm8974_dt_match[] __initconst = {
+       "qcom,msm8974-db",
+       NULL
+};
+
+DT_MACHINE_START(MSM8974_DT, "Qualcomm MSM (Flattened Device Tree)")
+       .dt_compat = msm8974_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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