LXR linux/arch/powerpc/boot/treeboot-ebony.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Old U-boot compatibility for Ebony
   4 *
   5 * Author: David Gibson <david@gibson.dropbear.id.au>
   6 *
   7 * Copyright 2007 David Gibson, IBM Corporatio.
   8 *   Based on cuboot-83xx.c, which is:
   9 * Copyright (c) 2007 Freescale Semiconductor, Inc.
  10 */
  11
  12#include "ops.h"
  13#include "stdio.h"
  14#include "44x.h"
  15
  16BSS_STACK(4096);
  17
  18#define OPENBIOS_MAC_BASE       0xfffffe0c
  19#define OPENBIOS_MAC_OFFSET     0xc
  20
  21void platform_init(void)
  22{
  23        unsigned long end_of_ram = 0x8000000;
  24        unsigned long avail_ram = end_of_ram - (unsigned long)_end;
  25
  26        simple_alloc_init(_end, avail_ram, 32, 64);
  27        ebony_init((u8 *)OPENBIOS_MAC_BASE,
  28                   (u8 *)(OPENBIOS_MAC_BASE + OPENBIOS_MAC_OFFSET));
  29}
  30