You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.0 KiB
138 lines
3.0 KiB
/*
|
|
* 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 *bootloader_tags;
|
|
|
|
extern resource_size_t fbmem_start;
|
|
extern resource_size_t fbmem_size;
|
|
|
|
void setup_processor(void);
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __ASM_AVR32_SETUP_H__ */
|
|
|