LXR linux/arch/powerpc/boot/cuboot-taishan.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Old U-boot compatibility for Taishan
   4 *
   5 * Author: Hugh Blemings <hugh@au.ibm.com>
   6 *
   7 * Copyright 2007 Hugh Blemings, IBM Corporation.
   8 *   Based on cuboot-ebony.c which is:
   9 * Copyright 2007 David Gibson, IBM Corporation.
  10 *   Based on cuboot-83xx.c, which is:
  11 * Copyright (c) 2007 Freescale Semiconductor, Inc.
  12 */
  13
  14#include "ops.h"
  15#include "stdio.h"
  16#include "cuboot.h"
  17#include "reg.h"
  18#include "dcr.h"
  19#include "4xx.h"
  20
  21#define TARGET_4xx
  22#define TARGET_44x
  23#define TARGET_440GX
  24#include "ppcboot.h"
  25
  26static bd_t bd;
  27
  28BSS_STACK(4096);
  29
  30static void taishan_fixups(void)
  31{
  32        /* FIXME: sysclk should be derived by reading the FPGA
  33           registers */
  34        unsigned long sysclk = 33000000;
  35
  36        ibm440gx_fixup_clocks(sysclk, 6 * 1843200, 25000000);
  37
  38        ibm4xx_sdram_fixup_memsize();
  39
  40        dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  41        dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  42
  43        ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
  44}
  45
  46void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  47                   unsigned long r6, unsigned long r7)
  48{
  49        CUBOOT_INIT();
  50
  51        platform_ops.fixups = taishan_fixups;
  52        fdt_init(_dtb_start);
  53        serial_console_init();
  54}
  55