[ARM] 5130/4: Support for the at91sam9g20

Support for the at91sam9g20 : Atmel 400Mhz ARM 926ej-s SOC.

AT91sam9g20 is an evolution of the at91sam9260 with a faster clock
speed.
We created a new board for this device but based the chip support
directly on 9260 files with little updates.
Here is the chip page on Atmel wabsite:
http://atmel.com/dyn/products/product_card.asp?part_id=4337

Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/asm-arm/arch-at91/cpu.h b/include/asm-arm/arch-at91/cpu.h
index 7145166826a2..52df794205cb 100644
--- a/include/asm-arm/arch-at91/cpu.h
+++ b/include/asm-arm/arch-at91/cpu.h
@@ -21,6 +21,7 @@
 #define ARCH_ID_AT91SAM9260     0x019803a0
 #define ARCH_ID_AT91SAM9261     0x019703a0
 #define ARCH_ID_AT91SAM9263     0x019607a0
+#define ARCH_ID_AT91SAM9G20     0x019905a0
 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
 #define ARCH_ID_AT91CAP9        0x039A03A0
 
@@ -63,6 +64,12 @@ static inline unsigned long at91_arch_identify(void)
 #define cpu_is_at91sam9260()    (0)
 #endif
 
+#ifdef CONFIG_ARCH_AT91SAM9G20
+#define cpu_is_at91sam9g20()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G20)
+#else
+#define cpu_is_at91sam9g20()    (0)
+#endif
+
 #ifdef CONFIG_ARCH_AT91SAM9261
 #define cpu_is_at91sam9261()    (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
 #else