79da7a610a
This patch replaces the arch_identify() in system.h with a set of cpu_is_XXX() macro's. This allows for compile-time checking of the target AT91 processor. Original patch from David Brownell. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/*
|
|
* include/asm-arm/arch-at91rm9200/cpu.h
|
|
*
|
|
* Copyright (C) 2006 SAN People
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_CPU_H
|
|
#define __ASM_ARCH_CPU_H
|
|
|
|
#include <asm/hardware.h>
|
|
#include <asm/arch/at91_dbgu.h>
|
|
|
|
|
|
#define ARCH_ID_AT91RM9200 0x09290780
|
|
#define ARCH_ID_AT91SAM9260 0x019803a0
|
|
#define ARCH_ID_AT91SAM9261 0x019703a0
|
|
|
|
|
|
static inline unsigned long at91_cpu_identify(void)
|
|
{
|
|
return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_ARCH_AT91RM9200
|
|
#define cpu_is_at91rm9200() (at91_cpu_identify() == ARCH_ID_AT91RM9200)
|
|
#else
|
|
#define cpu_is_at91rm9200() (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_AT91SAM9260
|
|
#define cpu_is_at91sam9260() (at91_cpu_identify() == ARCH_ID_AT91SAM9260)
|
|
#else
|
|
#define cpu_is_at91sam9260() (0)
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_AT91SAM9261
|
|
#define cpu_is_at91sam9261() (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
|
|
#else
|
|
#define cpu_is_at91sam9261() (0)
|
|
#endif
|
|
|
|
#endif
|