arm: prima2: add new SiRFatlas6 machine in common board

SiRFatlas6's machine definition is almost seem with SiRFprimaII
except that prima2 has a 256MB DMA zone.
This patch adds SiRFatlas6 machine in common board files, and
also adds atlas6 arch node in Kconfig.

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

2 files changed, 30 insertions, 1 deletions

diff --git a/arch/arm/mach-prima2/Kconfig b/arch/arm/mach-prima2/Kconfig
index 4f7379fe01e2..b3be7994a2b1 100644
--- a/arch/arm/mach-prima2/Kconfig
+++ b/arch/arm/mach-prima2/Kconfig
@@ -1,6 +1,14 @@
 if ARCH_SIRF
 
-menu "CSR SiRF primaII/Marco/Polo Specific Features"
+menu "CSR SiRF atlas6/primaII/Marco/Polo Specific Features"
+
+config ARCH_ATLAS6
+        bool "CSR SiRFSoC ATLAS6 ARM Cortex A9 Platform"
+        default y
+        select CPU_V7
+        select SIRF_IRQ
+        help
+          Support for CSR SiRFSoC ARM Cortex A9 Platform
 
 config ARCH_PRIMA2
         bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c
index 2d57aa479a7b..72efb4ff2803 100644
--- a/arch/arm/mach-prima2/common.c
+++ b/arch/arm/mach-prima2/common.c
@@ -37,6 +37,27 @@ static __init void sirfsoc_map_io(void)
         sirfsoc_map_scu();
 }
 
+#ifdef CONFIG_ARCH_ATLAS6
+static const char *atlas6_dt_match[] __initdata = {
+        "sirf,atlas6",
+        NULL
+};
+
+DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)")
+        /* Maintainer: Barry Song <baohua.song@csr.com> */
+        .map_io         = sirfsoc_map_io,
+        .init_irq       = sirfsoc_of_irq_init,
+        .init_time      = sirfsoc_prima2_timer_init,
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+        .handle_irq     = sirfsoc_handle_irq,
+#endif
+        .init_machine   = sirfsoc_mach_init,
+        .init_late      = sirfsoc_init_late,
+        .dt_compat      = atlas6_dt_match,
+        .restart        = sirfsoc_restart,
+MACHINE_END
+#endif
+
 #ifdef CONFIG_ARCH_PRIMA2
 static const char *prima2_dt_match[] __initdata = {
        "sirf,prima2",