LXR linux/arch/powerpc/boot/ep88xc.c

   1/*
   2 * Embedded Planet EP88xC with PlanetCore firmware
   3 *
   4 * Author: Scott Wood <scottwood@freescale.com>
   5 *
   6 * Copyright (c) 2007 Freescale Semiconductor, Inc.
   7 *
   8 * This program is free software; you can redistribute it and/or modify it
   9 * under the terms of the GNU General Public License version 2 as published
  10 * by the Free Software Foundation.
  11 */
  12
  13#include "ops.h"
  14#include "stdio.h"
  15#include "planetcore.h"
  16#include "mpc8xx.h"
  17
  18static char *table;
  19static u64 mem_size;
  20
  21static void platform_fixups(void)
  22{
  23        u64 val;
  24
  25        dt_fixup_memory(0, mem_size);
  26        planetcore_set_mac_addrs(table);
  27
  28        if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
  29                printf("No PlanetCore crystal frequency key.\r\n");
  30                return;
  31        }
  32
  33        mpc885_fixup_clocks(val);
  34}
  35
  36void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  37                   unsigned long r6, unsigned long r7)
  38{
  39        table = (char *)r3;
  40        planetcore_prepare_table(table);
  41
  42        if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
  43                return;
  44
  45        mem_size *= 1024 * 1024;
  46        simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
  47
  48        fdt_init(_dtb_start);
  49
  50        planetcore_set_stdout_path(table);
  51
  52        serial_console_init();
  53        platform_ops.fixups = platform_fixups;
  54}
  55