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
taishan_fixups(void)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_address_by_alias("ethernet0", bd.bi_enetaddr);
44 dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
45
46 ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
47 }
48
platform_init(unsigned long r3,unsigned long r4,unsigned long r5,unsigned long r6,unsigned long r7)49 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
50 unsigned long r6, unsigned long r7)
51 {
52 CUBOOT_INIT();
53
54 platform_ops.fixups = taishan_fixups;
55 fdt_init(_dtb_start);
56 serial_console_init();
57 }
58