diff options
Diffstat (limited to 'arch/arm/mach-davinci/include/mach/cputype.h')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/cputype.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/cputype.h b/arch/arm/mach-davinci/include/mach/cputype.h new file mode 100644 index 000000000000..27cfb1b3a662 --- /dev/null +++ b/arch/arm/mach-davinci/include/mach/cputype.h @@ -0,0 +1,49 @@ +/* + * DaVinci CPU type detection + * + * Author: Kevin Hilman, Deep Root Systems, LLC + * + * Defines the cpu_is_*() macros for runtime detection of DaVinci + * device type. In addtion, if support for a given device is not + * compiled in to the kernel, the macros return 0 so that + * resulting code can be optimized out. + * + * 2009 (c) Deep Root Systems, LLC. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ +#ifndef _ASM_ARCH_CPU_H +#define _ASM_ARCH_CPU_H + +extern unsigned int davinci_rev(void); + +#define IS_DAVINCI_CPU(type, id) \ +static inline int is_davinci_dm ##type(void) \ +{ \ + return (davinci_rev() == (id)) ? 1 : 0; \ +} + +IS_DAVINCI_CPU(644x, 0x6446) +IS_DAVINCI_CPU(646x, 0x6467) +IS_DAVINCI_CPU(355, 0x355) + +#ifdef CONFIG_ARCH_DAVINCI_DM644x +#define cpu_is_davinci_dm644x() is_davinci_dm644x() +#else +#define cpu_is_davinci_dm644x() 0 +#endif + +#ifdef CONFIG_ARCH_DAVINCI_DM646x +#define cpu_is_davinci_dm646x() is_davinci_dm646x() +#else +#define cpu_is_davinci_dm646x() 0 +#endif + +#ifdef CONFIG_ARCH_DAVINCI_DM355 +#define cpu_is_davinci_dm355() is_davinci_dm355() +#else +#define cpu_is_davinci_dm355() 0 +#endif + +#endif |