at91: at91sam9g45 family: identify several chip versions

cpu_is_xxx() macros are identifying generic at91sam9g45 chip. This patch adds
the capacity to differentiate Engineering Samples and final lots through the
inclusion of  at91_cpu_fully_identify() and the related chip IDs with chip
version field preserved.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/include/mach/cpu.h b/arch/arm/mach-at91/include/mach/cpu.h
index 34a9502c48bc..c22df30ed5e5 100644
--- a/arch/arm/mach-at91/include/mach/cpu.h
+++ b/arch/arm/mach-at91/include/mach/cpu.h
@@ -25,6 +25,8 @@
 #define ARCH_ID_AT91SAM9G20     0x019905a0
 #define ARCH_ID_AT91SAM9RL64    0x019b03a0
 #define ARCH_ID_AT91SAM9G45     0x819b05a0
+#define ARCH_ID_AT91SAM9G45MRL  0x819b05a2      /* aka 9G45-ES2 & non ES lots */
+#define ARCH_ID_AT91SAM9G45ES   0x819b05a1      /* 9G45-ES (Engineering Sample) */
 #define ARCH_ID_AT91CAP9        0x039A03A0
 
 #define ARCH_ID_AT91SAM9XE128   0x329973a0
@@ -41,6 +43,11 @@ static inline unsigned long at91_cpu_identify(void)
         return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
 }
 
+static inline unsigned long at91_cpu_fully_identify(void)
+{
+        return at91_sys_read(AT91_DBGU_CIDR);
+}
+
 #define ARCH_EXID_AT91SAM9M11   0x00000001
 #define ARCH_EXID_AT91SAM9M10   0x00000002
 #define ARCH_EXID_AT91SAM9G45   0x00000004
@@ -118,8 +125,10 @@ static inline unsigned long at91cap9_rev_identify(void)
 
 #ifdef CONFIG_ARCH_AT91SAM9G45
 #define cpu_is_at91sam9g45()    (at91_cpu_identify() == ARCH_ID_AT91SAM9G45)
+#define cpu_is_at91sam9g45es()  (at91_cpu_fully_identify() == ARCH_ID_AT91SAM9G45ES)
 #else
 #define cpu_is_at91sam9g45()    (0)
+#define cpu_is_at91sam9g45es()  (0)
 #endif
 
 #ifdef CONFIG_ARCH_AT91CAP9