/* * Copyright (C) 2004-2006 Atmel Corporation * * Based on linux/include/asm-arm/setup.h *   Copyright (C) 1997-1999 Russel King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */#ifndef __ASM_AVR32_SETUP_H__#define __ASM_AVR32_SETUP_H__ #define COMMAND_LINE_SIZE 256 #ifdef __KERNEL__ /* Magic number indicating that a tag table is present */#define ATAG_MAGIC	0xa2a25441 #ifndef __ASSEMBLY__ /* * Generic memory range, used by several tags. * *   addr is always physical. *   size is measured in bytes. *   next is for use by the OS, e.g. for grouping regions into *        linked lists. */struct tag_mem_range {	u32			addr;	u32			size;	struct tag_mem_range *	next;}; /* The list ends with an ATAG_NONE node. */#define ATAG_NONE	0x00000000 struct tag_header {	u32 size;	u32 tag;}; /* The list must start with an ATAG_CORE node */#define ATAG_CORE	0x54410001 struct tag_core {	u32 flags;	u32 pagesize;	u32 rootdev;}; /* it is allowed to have multiple ATAG_MEM nodes */#define ATAG_MEM	0x54410002/* ATAG_MEM uses tag_mem_range */ /* command line: \0 terminated string */#define ATAG_CMDLINE	0x54410003 struct tag_cmdline {	char	cmdline[1];	/* this is the minimum size */}; /* Ramdisk image (may be compressed) */#define ATAG_RDIMG	0x54410004/* ATAG_RDIMG uses tag_mem_range */ /* Information about various clocks present in the system */#define ATAG_CLOCK	0x54410005 struct tag_clock {	u32	clock_id;	/* Which clock are we talking about? */	u32	clock_flags;	/* Special features */	u64	clock_hz;	/* Clock speed in Hz */}; /* The clock types we know about */#define CLOCK_BOOTCPU	0 /* Memory reserved for the system (e.g. the bootloader) */#define ATAG_RSVD_MEM	0x54410006/* ATAG_RSVD_MEM uses tag_mem_range */ /* Ethernet information */ #define ATAG_ETHERNET	0x54410007 struct tag_ethernet {	u8	mac_index;	u8	mii_phy_addr;	u8	hw_address[6];}; #define ETH_INVALID_PHY	0xff struct tag {	struct tag_header hdr;	union {		struct tag_core core;		struct tag_mem_range mem_range;		struct tag_cmdline cmdline;		struct tag_clock clock;		struct tag_ethernet ethernet;	} u;}; struct tagtable {	u32	tag;	int	(*parse)(struct tag *);}; #define __tag __attribute_used__ __attribute__((__section__(".taglist")))#define __tagtable(tag, fn)						\	static struct tagtable __tagtable_##fn __tag = { tag, fn } #define tag_member_present(tag,member)					\	((unsigned long)(&((struct tag *)0L)->member + 1)		\	 <= (tag)->hdr.size * 4) #define tag_next(t)	((struct tag *)((u32 *)(t) + (t)->hdr.size))#define tag_size(type)	((sizeof(struct tag_header) + sizeof(struct type)) >> 2) #define for_each_tag(t,base)						\	for (t = base; t->hdr.size; t = tag_next(t)) extern struct tag_mem_range *mem_phys;extern struct tag_mem_range *mem_reserved;extern struct tag_mem_range *mem_ramdisk; extern struct tag *bootloader_tags; extern void setup_bootmem(void);extern void setup_processor(void);extern void board_setup_fbmem(unsigned long fbmem_start,			      unsigned long fbmem_size); /* Chip-specific hook to enable the use of SDRAM */void chip_enable_sdram(void); #endif /* !__ASSEMBLY__ */ #endif  /*  __KERNEL__  */ #endif /* __ASM_AVR32_SETUP_H__ */