linux/arch/arm/mach-at91/include/mach/system_rev.h

28 lines
544 B
C

/*
* 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__ */