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(sys_clk: sysclk, ser_clk: 6 * 1843200, tmr_clk: 25000000); |
37 | |
38 | ibm4xx_sdram_fixup_memsize(); |
39 | |
40 | dt_fixup_mac_address_by_alias(alias: "ethernet0" , addr: bd.bi_enetaddr); |
41 | dt_fixup_mac_address_by_alias(alias: "ethernet1" , addr: bd.bi_enet1addr); |
42 | |
43 | ibm4xx_fixup_ebc_ranges(ebc: "/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(blob: _dtb_start); |
53 | serial_console_init(); |
54 | } |
55 | |