diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/arm/mach-at91/include/mach/system_rev.h | |
Diffstat (limited to 'arch/arm/mach-at91/include/mach/system_rev.h')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/system_rev.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/system_rev.h b/arch/arm/mach-at91/include/mach/system_rev.h new file mode 100644 index 00000000..ef79a9aa --- /dev/null +++ b/arch/arm/mach-at91/include/mach/system_rev.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> + * + * Under GPLv2 only + */ + +#ifndef __ARCH_SYSTEM_REV_H__ +#define __ARCH_SYSTEM_REV_H__ + +#include <asm/system_info.h> + +/* + * board revision encoding + * mach specific + * the 16-31 bit are reserved for at91 generic information + * + * bit 31: + * 0 => nand 8 bit + * 1 => nand 16 bit + */ +#define BOARD_HAVE_NAND_16BIT (1 << 31) +static inline int board_have_nand_16bit(void) +{ + return (system_rev & BOARD_HAVE_NAND_16BIT) ? 1 : 0; +} + +#endif /* __ARCH_SYSTEM_REV_H__ */ |