ARM: sirf: add Atlas7 machine support

CSRatlas7 is next-gen auto SoC from CSR.
It could bring to customers most integrated SoC solution:
- World leading Bluetooth 4.0 and GNSS baseband
- Audio processing, analog CODEC and ADC by DSP
- Analog video input
- SDR accelerators
- CAN bus support by Cortex-M3

Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-prima2/Kconfig

@@ -11,7 +11,7 @@ menuconfig ARCH_SIRF
 
 if ARCH_SIRF
 
-comment "CSR SiRF atlas6/primaII/Marco/Polo Specific Features"
+comment "CSR SiRF atlas6/primaII/Atlas7 Specific Features"
 
 config ARCH_ATLAS6
 	bool "CSR SiRFSoC ATLAS6 ARM Cortex A9 Platform"
@@ -20,6 +20,17 @@ config ARCH_ATLAS6
 	help
           Support for CSR SiRFSoC ARM Cortex A9 Platform
 
+config ARCH_ATLAS7
+	bool "CSR SiRFSoC ATLAS7 ARM Cortex A7 Platform"
+	default y
+	select ARM_GIC
+	select CPU_V7
+	select HAVE_ARM_SCU if SMP
+	select HAVE_SMP
+	select SMP_ON_UP if SMP
+	help
+          Support for CSR SiRFSoC ARM Cortex A7 Platform
+
 config ARCH_PRIMA2
 	bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
 	default y

arch/arm/mach-prima2/common.c

@@ -50,3 +50,16 @@ DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)")
 	.dt_compat      = prima2_dt_match,
 MACHINE_END
 #endif
+
+#ifdef CONFIG_ARCH_ATLAS7
+static const char *atlas7_dt_match[] __initdata = {
+	"sirf,atlas7",
+	NULL
+};
+
+DT_MACHINE_START(ATLAS7_DT, "Generic ATLAS7 (Flattened Device Tree)")
+	/* Maintainer: Barry Song <baohua.song@csr.com> */
+	.smp            = smp_ops(sirfsoc_smp_ops),
+	.dt_compat      = atlas7_dt_match,
+MACHINE_END
+#endif