/usr/arm-linux-gnueabihf/include/asm/setup.h is in linux-libc-dev-armhf-cross 4.4.0-18.34cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* linux/include/asm/setup.h
*
* Copyright (C) 1997-1999 Russell 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.
*
* Structure passed to kernel to tell it about the
* hardware it's running on. See Documentation/arm/Setup
* for more info.
*/
#ifndef __ASMARM_SETUP_H
#define __ASMARM_SETUP_H
#include <linux/types.h>
#define COMMAND_LINE_SIZE 1024
/* 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; /* bit 0 = read-only */
__u32 pagesize;
__u32 rootdev;
};
/* it is allowed to have multiple ATAG_MEM nodes */
#define ATAG_MEM 0x54410002
struct tag_mem32 {
__u32 size;
__u32 start; /* physical start address */
};
/* VGA text type displays */
#define ATAG_VIDEOTEXT 0x54410003
struct tag_videotext {
__u8 x;
__u8 y;
__u16 video_page;
__u8 video_mode;
__u8 video_cols;
__u16 video_ega_bx;
__u8 video_lines;
__u8 video_isvga;
__u16 video_points;
};
/* describes how the ramdisk will be used in kernel */
#define ATAG_RAMDISK 0x54410004
struct tag_ramdisk {
__u32 flags; /* bit 0 = load, bit 1 = prompt */
__u32 size; /* decompressed ramdisk size in _kilo_ bytes */
__u32 start; /* starting block of floppy-based RAM disk image */
};
/* describes where the compressed ramdisk image lives (virtual address) */
/*
* this one accidentally used virtual addresses - as such,
* it's deprecated.
*/
#define ATAG_INITRD 0x54410005
/* describes where the compressed ramdisk image lives (physical address) */
#define ATAG_INITRD2 0x54420005
struct tag_initrd {
__u32 start; /* physical start address */
__u32 size; /* size of compressed ramdisk image in bytes */
};
/* board serial number. "64 bits should be enough for everybody" */
#define ATAG_SERIAL 0x54410006
struct tag_serialnr {
__u32 low;
__u32 high;
};
/* board revision */
#define ATAG_REVISION 0x54410007
struct tag_revision {
__u32 rev;
};
/* initial values for vesafb-type framebuffers. see struct screen_info
* in include/linux/tty.h
*/
#define ATAG_VIDEOLFB 0x54410008
struct tag_videolfb {
__u16 lfb_width;
__u16 lfb_height;
__u16 lfb_depth;
__u16 lfb_linelength;
__u32 lfb_base;
__u32 lfb_size;
__u8 red_size;
__u8 red_pos;
__u8 green_size;
__u8 green_pos;
__u8 blue_size;
__u8 blue_pos;
__u8 rsvd_size;
__u8 rsvd_pos;
};
/* command line: \0 terminated string */
#define ATAG_CMDLINE 0x54410009
struct tag_cmdline {
char cmdline[1]; /* this is the minimum size */
};
/* acorn RiscPC specific information */
#define ATAG_ACORN 0x41000101
struct tag_acorn {
__u32 memc_control_reg;
__u32 vram_pages;
__u8 sounddefault;
__u8 adfsdrives;
};
/* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */
#define ATAG_MEMCLK 0x41000402
struct tag_memclk {
__u32 fmemclk;
};
struct tag {
struct tag_header hdr;
union {
struct tag_core core;
struct tag_mem32 mem;
struct tag_videotext videotext;
struct tag_ramdisk ramdisk;
struct tag_initrd initrd;
struct tag_serialnr serialnr;
struct tag_revision revision;
struct tag_videolfb videolfb;
struct tag_cmdline cmdline;
/*
* Acorn specific
*/
struct tag_acorn acorn;
/*
* DC21285 specific
*/
struct tag_memclk memclk;
} u;
};
struct tagtable {
__u32 tag;
int (*parse)(const struct tag *);
};
#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))
#endif /* __ASMARM_SETUP_H */
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