[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>
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index c9ee408..9dc7111 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()); \
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index a3a6aff..3caa74a 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -36,6 +36,12 @@
#include "devices.h"
#include "clock.h"
+int cpu_is_pxa26x(void)
+{
+ return cpu_is_pxa250() && ((BOOT_DEF & 0x8) == 0);
+}
+EXPORT_SYMBOL_GPL(cpu_is_pxa26x);
+
/*
* Various clock factors driven by the CCCR register.
*/
@@ -372,7 +378,7 @@
}
/* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
- if (cpu_is_pxa255()) {
+ if (cpu_is_pxa255() || cpu_is_pxa26x()) {
clks_register(&pxa25x_hwuart_clk, 1);
ret = platform_device_register(&pxa_device_hwuart);
}