| Jean-Christophe PLAGNIOL-VILLARD | 76b2ab7 | 2011-04-14 00:34:03 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> |
| 3 | * |
| 4 | * Under GPLv2 only |
| 5 | */ |
| 6 | |
| 7 | #ifndef __ARCH_SYSTEM_REV_H__ |
| 8 | #define __ARCH_SYSTEM_REV_H__ |
| 9 | |
| David Howells | 9f97da7 | 2012-03-28 18:30:01 +0100 | [diff] [blame] | 10 | #include <asm/system_info.h> |
| 11 | |
| Jean-Christophe PLAGNIOL-VILLARD | 76b2ab7 | 2011-04-14 00:34:03 +0800 | [diff] [blame] | 12 | /* |
| 13 | * board revision encoding |
| 14 | * mach specific |
| 15 | * the 16-31 bit are reserved for at91 generic information |
| 16 | * |
| 17 | * bit 31: |
| Nicolas Ferre | 64393b3 | 2011-07-01 12:25:24 +0200 | [diff] [blame] | 18 | * 0 => nand 8 bit |
| 19 | * 1 => nand 16 bit |
| Jean-Christophe PLAGNIOL-VILLARD | 76b2ab7 | 2011-04-14 00:34:03 +0800 | [diff] [blame] | 20 | */ |
| Nicolas Ferre | 64393b3 | 2011-07-01 12:25:24 +0200 | [diff] [blame] | 21 | #define BOARD_HAVE_NAND_16BIT (1 << 31) |
| 22 | static inline int board_have_nand_16bit(void) |
| Jean-Christophe PLAGNIOL-VILLARD | 76b2ab7 | 2011-04-14 00:34:03 +0800 | [diff] [blame] | 23 | { |
| Christian Hitz | a5f70b6 | 2011-10-24 08:57:32 +0200 | [diff] [blame] | 24 | return (system_rev & BOARD_HAVE_NAND_16BIT) ? 1 : 0; |
| Jean-Christophe PLAGNIOL-VILLARD | 76b2ab7 | 2011-04-14 00:34:03 +0800 | [diff] [blame] | 25 | } |
| 26 | |
| 27 | #endif /* __ARCH_SYSTEM_REV_H__ */ |