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