diff options
Diffstat (limited to 'include/asm-arm/arch-at91/cpu.h')
-rw-r--r-- | include/asm-arm/arch-at91/cpu.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/asm-arm/arch-at91/cpu.h b/include/asm-arm/arch-at91/cpu.h new file mode 100644 index 0000000..d464ca5 --- /dev/null +++ b/include/asm-arm/arch-at91/cpu.h @@ -0,0 +1,71 @@ +/* + * include/asm-arm/arch-at91/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 +#define ARCH_ID_AT91SAM9263 0x019607a0 + +#define ARCH_ID_AT91SAM9XE128 0x329973a0 +#define ARCH_ID_AT91SAM9XE256 0x329a93a0 +#define ARCH_ID_AT91SAM9XE512 0x329aa3a0 + +static inline unsigned long at91_cpu_identify(void) +{ + return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION); +} + + +#define ARCH_FAMILY_AT91X92 0x09200000 +#define ARCH_FAMILY_AT91SAM9 0x01900000 +#define ARCH_FAMILY_AT91SAM9XE 0x02900000 + +static inline unsigned long at91_arch_identify(void) +{ + return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH); +} + + +#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_at91sam9xe() (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE) +#define cpu_is_at91sam9260() ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe()) +#else +#define cpu_is_at91sam9xe() (0) +#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 + +#ifdef CONFIG_ARCH_AT91SAM9263 +#define cpu_is_at91sam9263() (at91_cpu_identify() == ARCH_ID_AT91SAM9263) +#else +#define cpu_is_at91sam9263() (0) +#endif + +#endif |