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Commit b23170c0 authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[ARM] pxa: introduce cpu_is_pxaXXX macros 



Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 7a2b94bc

arch/arm/mach-pxa/generic.c

+2 −4
Original line number Diff line number Diff line
@@ -448,16 +448,14 @@ static struct platform_device *devices[] __initdata = { 


static int __init pxa_init(void)

{

	int cpuid, ret;

	int ret;



	ret = platform_add_devices(devices, ARRAY_SIZE(devices));

	if (ret)

		return ret;



	/* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */

	cpuid = read_cpuid(CPUID_ID);

	if (((cpuid >> 4) & 0xfff) == 0x2d0 ||

	    ((cpuid >> 4) & 0xfff) == 0x290)

	if (cpu_is_pxa25x())

		ret = platform_device_register(&hwuart_device);



	return ret;

include/asm-arm/arch-pxa/hardware.h

+36 −0
Original line number Diff line number Diff line
@@ -62,6 +62,42 @@ 


#ifndef __ASSEMBLY__



#define __cpu_is_pxa21x(id)				\

	({						\

		unsigned int _id = (id) >> 4 & 0xf3f;	\

		_id == 0x212;				\

	})



#define __cpu_is_pxa25x(id)				\

	({						\

		unsigned int _id = (id) >> 4 & 0xfff;	\

		_id == 0x2d0 || _id == 0x290;		\

	})



#define __cpu_is_pxa27x(id)				\

	({						\

		unsigned int _id = (id) >> 4 & 0xfff;	\

		_id == 0x411;				\

	})



#define cpu_is_pxa21x()					\

	({						\

		unsigned int id = read_cpuid(CPUID_ID);	\

		__cpu_is_pxa21x(id);			\

	})



#define cpu_is_pxa25x()					\

	({						\

		unsigned int id = read_cpuid(CPUID_ID);	\

		__cpu_is_pxa25x(id);			\

	})



#define cpu_is_pxa27x()					\

	({						\

		unsigned int id = read_cpuid(CPUID_ID);	\

		__cpu_is_pxa27x(id);			\

	})



/*

 * Handy routine to set GPIO alternate functions

 */