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Diffstat (limited to 'arch/arm/include/uapi/asm/setup.h')
| -rw-r--r-- | arch/arm/include/uapi/asm/setup.h | 187 | 
1 files changed, 187 insertions, 0 deletions
diff --git a/arch/arm/include/uapi/asm/setup.h b/arch/arm/include/uapi/asm/setup.h new file mode 100644 index 00000000000..979ff401640 --- /dev/null +++ b/arch/arm/include/uapi/asm/setup.h @@ -0,0 +1,187 @@ +/* + *  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 _UAPI__ASMARM_SETUP_H +#define _UAPI__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 /* _UAPI__ASMARM_SETUP_H */  |