arch/powerpc/boot/cuboot-taishan.c

   1 /*
   2  * Old U-boot compatibility for Taishan
   3  *
   4  * Author: Hugh Blemings <hugh@au.ibm.com>
   5  *
   6  * Copyright 2007 Hugh Blemings, IBM Corporation.
   7  *   Based on cuboot-ebony.c which is:
   8  * Copyright 2007 David Gibson, IBM Corporation.
   9  *   Based on cuboot-83xx.c, which is:
  10  * Copyright (c) 2007 Freescale Semiconductor, Inc.
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License version 2 as published
  14  * by the Free Software Foundation.
  15  */
  16
  17 #include "ops.h"
  18 #include "stdio.h"
  19 #include "cuboot.h"
  20 #include "reg.h"
  21 #include "dcr.h"
  22 #include "4xx.h"
  23
  24 #define TARGET_4xx
  25 #define TARGET_44x
  26 #define TARGET_440GX
  27 #include "ppcboot.h"
  28
  29 static bd_t bd;
  30
  31 BSS_STACK(4096);
  32
  33 static void taishan_fixups(void)
  34 {
  35         /* FIXME: sysclk should be derived by reading the FPGA
  36            registers */
  37         unsigned long sysclk = 33000000;
  38
  39         ibm440gx_fixup_clocks(sysclk, 6 * 1843200, 25000000);
  40
  41         ibm4xx_sdram_fixup_memsize();
  42
  43         dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);
  44
  45         ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
  46 }
  47
  48 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  49                    unsigned long r6, unsigned long r7)
  50 {
  51         CUBOOT_INIT();
  52
  53         platform_ops.fixups = taishan_fixups;
  54         fdt_init(_dtb_start);
  55         serial_console_init();
  56 }