release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/boot/cuboot-kilauea.c

   1 /*
   2  * Old U-boot compatibility for PPC405EX. This image is already included
   3  * a dtb.
   4  *
   5  * Author: Tiejun Chen <tiejun.chen@windriver.com>
   6  *
   7  * Copyright (C) 2009 Wind River Systems, Inc.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License version 2 as published
  11  * by the Free Software Foundation.
  12  */
  13
  14 #include "ops.h"
  15 #include "io.h"
  16 #include "dcr.h"
  17 #include "stdio.h"
  18 #include "4xx.h"
  19 #include "44x.h"
  20 #include "cuboot.h"
  21
  22 #define TARGET_4xx
  23 #define TARGET_44x
  24 #include "ppcboot.h"
  25
  26 #define KILAUEA_SYS_EXT_SERIAL_CLOCK     11059200        /* ext. 11.059MHz clk */
  27
  28 static bd_t bd;
  29
  30 static void kilauea_fixups(void)
  31 {
  32         unsigned long sysclk = 33333333;
  33
  34         ibm405ex_fixup_clocks(sysclk, KILAUEA_SYS_EXT_SERIAL_CLOCK);
  35         dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  36         ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
  37         dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  38         dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  39 }
  40
  41 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  42                 unsigned long r6, unsigned long r7)
  43 {
  44         CUBOOT_INIT();
  45         platform_ops.fixups = kilauea_fixups;
  46         platform_ops.exit = ibm40x_dbcr_reset;
  47         fdt_init(_dtb_start);
  48         serial_console_init();
  49 }