LXR linux/arch/powerpc/include/asm/bootx.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * This file describes the structure passed from the BootX application
   4 * (for MacOS) when it is used to boot Linux.
   5 *
   6 * Written by Benjamin Herrenschmidt.
   7 */
   8
   9#ifndef __ASM_BOOTX_H__
  10#define __ASM_BOOTX_H__
  11
  12#include <uapi/asm/bootx.h>
  13
  14/* (*) The format of the colormap is 256 * 3 * 2 bytes. Each color index
  15 * is represented by 3 short words containing a 16 bits (unsigned) color
  16 * component. Later versions may contain the gamma table for direct-color
  17 * devices here.
  18 */
  19#define BOOTX_COLORTABLE_SIZE    (256UL*3UL*2UL)
  20
  21/* BootX passes the device-tree using a format that comes from earlier
  22 * ppc32 kernels. This used to match what is in prom.h, but not anymore
  23 * so we now define it here
  24 */
  25struct bootx_dt_prop {
  26        u32     name;
  27        int     length;
  28        u32     value;
  29        u32     next;
  30};
  31
  32struct bootx_dt_node {
  33        u32     unused0;
  34        u32     unused1;
  35        u32     phandle;        /* not really available */
  36        u32     unused2;
  37        u32     unused3;
  38        u32     unused4;
  39        u32     unused5;
  40        u32     full_name;
  41        u32     properties;
  42        u32     parent;
  43        u32     child;
  44        u32     sibling;
  45        u32     next;
  46        u32     allnext;
  47};
  48
  49extern void bootx_init(unsigned long r4, unsigned long phys);
  50
  51#endif
  52