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
  26 static bd_t bd;
  27
  28 BSS_STACK(4096);
  29
  30 static 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
  46 void 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 }