LXR linux/arch/powerpc/boot/ep8248e.c

   1/*
   2 * Embedded Planet EP8248E 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 "pq2.h"
  17
  18static char *table;
  19static u64 mem_size;
  20
  21#include <io.h>
  22
  23static void platform_fixups(void)
  24{
  25        u64 val;
  26
  27        dt_fixup_memory(0, mem_size);
  28        planetcore_set_mac_addrs(table);
  29
  30        if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
  31                printf("No PlanetCore crystal frequency key.\r\n");
  32                return;
  33        }
  34
  35        pq2_fixup_clocks(val);
  36}
  37
  38void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  39                   unsigned long r6, unsigned long r7)
  40{
  41        table = (char *)r3;
  42        planetcore_prepare_table(table);
  43
  44        if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
  45                return;
  46
  47        mem_size *= 1024 * 1024;
  48        simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
  49
  50        fdt_init(_dtb_start);
  51
  52        planetcore_set_stdout_path(table);
  53        serial_console_init();
  54        platform_ops.fixups = platform_fixups;
  55}
  56