upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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269 lines
6.1 KiB
269 lines
6.1 KiB
/*
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* linux/include/asm/setup.h
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*
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* Copyright (C) 1997-1999 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Structure passed to kernel to tell it about the
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* hardware it's running on. See linux/Documentation/arm/Setup
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* for more info.
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*
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* NOTE:
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* This file contains two ways to pass information from the boot
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* loader to the kernel. The old struct param_struct is deprecated,
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* but it will be kept in the kernel for 5 years from now
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* (2001). This will allow boot loaders to convert to the new struct
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* tag way.
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*/
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#ifndef __ASMARM_SETUP_H
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#define __ASMARM_SETUP_H
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/*
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* Usage:
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* - do not go blindly adding fields, add them at the end
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* - when adding fields, don't rely on the address until
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* a patch from me has been released
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* - unused fields should be zero (for future expansion)
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* - this structure is relatively short-lived - only
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* guaranteed to contain useful data in setup_arch()
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*/
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#define COMMAND_LINE_SIZE 1024
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/* This is the old deprecated way to pass parameters to the kernel */
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struct param_struct {
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union {
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struct {
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unsigned long page_size; /* 0 */
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unsigned long nr_pages; /* 4 */
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unsigned long ramdisk_size; /* 8 */
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unsigned long flags; /* 12 */
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#define FLAG_READONLY 1
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#define FLAG_RDLOAD 4
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#define FLAG_RDPROMPT 8
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unsigned long rootdev; /* 16 */
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unsigned long video_num_cols; /* 20 */
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unsigned long video_num_rows; /* 24 */
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unsigned long video_x; /* 28 */
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unsigned long video_y; /* 32 */
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unsigned long memc_control_reg; /* 36 */
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unsigned char sounddefault; /* 40 */
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unsigned char adfsdrives; /* 41 */
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unsigned char bytes_per_char_h; /* 42 */
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unsigned char bytes_per_char_v; /* 43 */
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unsigned long pages_in_bank[4]; /* 44 */
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unsigned long pages_in_vram; /* 60 */
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unsigned long initrd_start; /* 64 */
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unsigned long initrd_size; /* 68 */
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unsigned long rd_start; /* 72 */
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unsigned long system_rev; /* 76 */
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unsigned long system_serial_low; /* 80 */
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unsigned long system_serial_high; /* 84 */
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unsigned long mem_fclk_21285; /* 88 */
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} s;
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char unused[256];
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} u1;
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union {
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char paths[8][128];
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struct {
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unsigned long magic;
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char n[1024 - sizeof(unsigned long)];
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} s;
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} u2;
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char commandline[COMMAND_LINE_SIZE];
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};
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/*
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* The new way of passing information: a list of tagged entries
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*/
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/* The list ends with an ATAG_NONE node. */
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#define ATAG_NONE 0x00000000
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struct tag_header {
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u32 size;
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u32 tag;
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};
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/* The list must start with an ATAG_CORE node */
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#define ATAG_CORE 0x54410001
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struct tag_core {
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u32 flags; /* bit 0 = read-only */
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u32 pagesize;
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u32 rootdev;
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};
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/* it is allowed to have multiple ATAG_MEM nodes */
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#define ATAG_MEM 0x54410002
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struct tag_mem32 {
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u32 size;
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u32 start; /* physical start address */
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};
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/* VGA text type displays */
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#define ATAG_VIDEOTEXT 0x54410003
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struct tag_videotext {
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u8 x;
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u8 y;
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u16 video_page;
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u8 video_mode;
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u8 video_cols;
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u16 video_ega_bx;
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u8 video_lines;
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u8 video_isvga;
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u16 video_points;
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};
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/* describes how the ramdisk will be used in kernel */
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#define ATAG_RAMDISK 0x54410004
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struct tag_ramdisk {
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u32 flags; /* bit 0 = load, bit 1 = prompt */
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u32 size; /* decompressed ramdisk size in _kilo_ bytes */
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u32 start; /* starting block of floppy-based RAM disk image */
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};
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/* describes where the compressed ramdisk image lives (virtual address) */
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/*
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* this one accidentally used virtual addresses - as such,
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* its depreciated.
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*/
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#define ATAG_INITRD 0x54410005
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/* describes where the compressed ramdisk image lives (physical address) */
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#define ATAG_INITRD2 0x54420005
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struct tag_initrd {
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u32 start; /* physical start address */
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u32 size; /* size of compressed ramdisk image in bytes */
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};
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/* board serial number. "64 bits should be enough for everybody" */
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#define ATAG_SERIAL 0x54410006
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struct tag_serialnr {
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u32 low;
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u32 high;
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};
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/* board revision */
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#define ATAG_REVISION 0x54410007
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struct tag_revision {
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u32 rev;
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};
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/* initial values for vesafb-type framebuffers. see struct screen_info
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* in include/linux/tty.h
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*/
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#define ATAG_VIDEOLFB 0x54410008
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struct tag_videolfb {
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u16 lfb_width;
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u16 lfb_height;
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u16 lfb_depth;
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u16 lfb_linelength;
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u32 lfb_base;
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u32 lfb_size;
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u8 red_size;
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u8 red_pos;
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u8 green_size;
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u8 green_pos;
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u8 blue_size;
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u8 blue_pos;
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u8 rsvd_size;
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u8 rsvd_pos;
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};
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/* command line: \0 terminated string */
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#define ATAG_CMDLINE 0x54410009
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struct tag_cmdline {
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char cmdline[1]; /* this is the minimum size */
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};
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/* acorn RiscPC specific information */
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#define ATAG_ACORN 0x41000101
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struct tag_acorn {
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u32 memc_control_reg;
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u32 vram_pages;
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u8 sounddefault;
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u8 adfsdrives;
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};
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/* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */
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#define ATAG_MEMCLK 0x41000402
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struct tag_memclk {
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u32 fmemclk;
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};
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struct tag {
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struct tag_header hdr;
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union {
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struct tag_core core;
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struct tag_mem32 mem;
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struct tag_videotext videotext;
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struct tag_ramdisk ramdisk;
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struct tag_initrd initrd;
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struct tag_serialnr serialnr;
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struct tag_revision revision;
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struct tag_videolfb videolfb;
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struct tag_cmdline cmdline;
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/*
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* Acorn specific
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*/
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struct tag_acorn acorn;
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/*
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* DC21285 specific
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*/
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struct tag_memclk memclk;
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} u;
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};
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struct tagtable {
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u32 tag;
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int (*parse)(const struct tag *);
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};
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#define __tag __attribute__((unused, __section__(".taglist")))
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#define __tagtable(tag, fn) \
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static struct tagtable __tagtable_##fn __tag = { tag, fn }
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#define tag_member_present(tag,member) \
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((unsigned long)(&((struct tag *)0L)->member + 1) \
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<= (tag)->hdr.size * 4)
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#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size))
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#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
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#define for_each_tag(t,base) \
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for (t = base; t->hdr.size; t = tag_next(t))
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/*
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* Memory map description
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*/
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#define NR_BANKS 8
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struct meminfo {
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int nr_banks;
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unsigned long end;
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struct {
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unsigned long start;
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unsigned long size;
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int node;
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} bank[NR_BANKS];
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};
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extern struct meminfo meminfo;
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#endif
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