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  
taishan_fixups(void)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  
platform_init(unsigned long r3,unsigned long r4,unsigned long r5,unsigned long r6,unsigned long r7)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  }
55