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
  15 static char *table;
  16 static u64 mem_size;
  17
  18 #include <io.h>
  19
  20 static 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
  35 void 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 }