[ARM] pxa: introduce cpu_is_pxa26x()

PXA26x (PXA261/262) is actually a PXA250 with stacked Intel(R)
StartaFlash. And this can be decided by bit 3 (PKG_TYPE) of
BOOT_DEF register.

Due to this extra I/O register access, make cpu_is_pxa26x() a
public function instead of a macro.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index c9ee4081d533..9dc71114e287 100644
--- a/arch/arm/mach-pxa/include/mach/hardware.h
+++ b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -202,6 +202,8 @@
                 __cpu_is_pxa25x(read_cpuid_id());       \
         })
 
+extern int cpu_is_pxa26x(void);
+
 #define cpu_is_pxa27x()                                 \
         ({                                              \
                 __cpu_is_pxa27x(read_cpuid_id());       \