[ARM] pxa: add PXA3 cpu_is_xxx() macros

Extracted from patch by Eric Miao, this adds the cpu_is_xxx() macros
for identifying PXA3 SoCs.

Signed-off-by: eric miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 65 insertions, 0 deletions

diff --git a/include/asm-arm/arch-pxa/hardware.h b/include/asm-arm/arch-pxa/hardware.h
index 538a34e39e9..fc20d72d484 100644
--- a/include/asm-arm/arch-pxa/hardware.h
+++ b/include/asm-arm/arch-pxa/hardware.h
@@ -80,6 +80,24 @@
                 _id == 0x411;                           \
         })
 
+#define __cpu_is_pxa300(id)                             \
+        ({                                              \
+                unsigned int _id = (id) >> 4 & 0xfff;   \
+                _id == 0x688;                           \
+         })
+
+#define __cpu_is_pxa310(id)                             \
+        ({                                              \
+                unsigned int _id = (id) >> 4 & 0xfff;   \
+                _id == 0x689;                           \
+         })
+
+#define __cpu_is_pxa320(id)                             \
+        ({                                              \
+                unsigned int _id = (id) >> 4 & 0xfff;   \
+                _id == 0x603 || _id == 0x682;           \
+         })
+
 #define cpu_is_pxa21x()                                 \
         ({                                              \
                 unsigned int id = read_cpuid(CPUID_ID); \
@@ -98,6 +116,53 @@
                 __cpu_is_pxa27x(id);                    \
         })
 
+#define cpu_is_pxa300()                                 \
+        ({                                              \
+                unsigned int id = read_cpuid(CPUID_ID); \
+                __cpu_is_pxa300(id);                    \
+         })
+
+#define cpu_is_pxa310()                                 \
+        ({                                              \
+                unsigned int id = read_cpuid(CPUID_ID); \
+                __cpu_is_pxa310(id);                    \
+         })
+
+#define cpu_is_pxa320()                                 \
+        ({                                              \
+                unsigned int id = read_cpuid(CPUID_ID); \
+                __cpu_is_pxa320(id);                    \
+         })
+
+/*
+ * CPUID Core Generation Bit
+ * <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
+ * == 0x3 for pxa300/pxa310/pxa320
+ */
+#define __cpu_is_pxa2xx(id)                             \
+        ({                                              \
+                unsigned int _id = (id) >> 13 & 0x7;    \
+                _id <= 0x2;                             \
+         })
+
+#define __cpu_is_pxa3xx(id)                             \
+        ({                                              \
+                unsigned int _id = (id) >> 13 & 0x7;    \
+                _id == 0x3;                             \
+         })
+
+#define cpu_is_pxa2xx()                                 \
+        ({                                              \
+                unsigned int id = read_cpuid(CPUID_ID); \
+                __cpu_is_pxa2xx(id);                    \
+         })
+
+#define cpu_is_pxa3xx()                                 \
+        ({                                              \
+                unsigned int id = read_cpuid(CPUID_ID); \
+                __cpu_is_pxa3xx(id);                    \
+         })
+
 /*
  * Handy routine to set GPIO alternate functions
  */