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

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Embedded Planet EP8248E with PlanetCore firmware
   4 *
   5 * Author: Scott Wood <scottwood@freescale.com>
   6 *
   7 * Copyright (c) 2007 Freescale Semiconductor, Inc.
   8 */
   9
  10#include "ops.h"
  11#include "stdio.h"
  12#include "planetcore.h"
  13#include "pq2.h"
  14
  15static char *table;
  16static u64 mem_size;
  17
  18#include <io.h>
  19
  20static void platform_fixups(void)
  21{
  22        u64 val;
  23
  24        dt_fixup_memory(0, mem_size);
  25        planetcore_set_mac_addrs(table);
  26
  27        if (!planetcore_get_decimal(table, PLANETCORE_KEY_CRYSTAL_HZ, &val)) {
  28                printf("No PlanetCore crystal frequency key.\r\n");
  29                return;
  30        }
  31
  32        pq2_fixup_clocks(val);
  33}
  34
  35void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  36                   unsigned long r6, unsigned long r7)
  37{
  38        table = (char *)r3;
  39        planetcore_prepare_table(table);
  40
  41        if (!planetcore_get_decimal(table, PLANETCORE_KEY_MB_RAM, &mem_size))
  42                return;
  43
  44        mem_size *= 1024 * 1024;
  45        simple_alloc_init(_end, mem_size - (unsigned long)_end, 32, 64);
  46
  47        fdt_init(_dtb_start);
  48
  49        planetcore_set_stdout_path(table);
  50        serial_console_init();
  51        platform_ops.fixups = platform_fixups;
  52}
  53