OpenWrt – Blame information for rev 4

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4 office 1 /*
2 * Compex's MyLoader specific prom routines
3 *
4 * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 *
10 */
11  
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/types.h>
15 #include <linux/string.h>
16  
17 #include <asm/addrspace.h>
18 #include <asm/fw/myloader/myloader.h>
19  
20 #define SYS_PARAMS_ADDR KSEG1ADDR(0x80000800)
21 #define BOARD_PARAMS_ADDR KSEG1ADDR(0x80000A00)
22 #define PART_TABLE_ADDR KSEG1ADDR(0x80000C00)
23 #define BOOT_PARAMS_ADDR KSEG1ADDR(0x80000E00)
24  
25 static struct myloader_info myloader_info __initdata;
26 static int myloader_found __initdata;
27  
28 struct myloader_info * __init myloader_get_info(void)
29 {
30 struct mylo_system_params *sysp;
31 struct mylo_board_params *boardp;
32 struct mylo_partition_table *parts;
33  
34 if (myloader_found)
35 return &myloader_info;
36  
37 sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR);
38 boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR);
39 parts = (struct mylo_partition_table *)(PART_TABLE_ADDR);
40  
41 printk(KERN_DEBUG "MyLoader: sysp=%08x, boardp=%08x, parts=%08x\n",
42 sysp->magic, boardp->magic, parts->magic);
43  
44 /* Check for some magic numbers */
45 if (sysp->magic != MYLO_MAGIC_SYS_PARAMS ||
46 boardp->magic != MYLO_MAGIC_BOARD_PARAMS ||
47 le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS)
48 return NULL;
49  
50 printk(KERN_DEBUG "MyLoader: id=%04x:%04x, sub_id=%04x:%04x\n",
51 sysp->vid, sysp->did, sysp->svid, sysp->sdid);
52  
53 myloader_info.vid = sysp->vid;
54 myloader_info.did = sysp->did;
55 myloader_info.svid = sysp->svid;
56 myloader_info.sdid = sysp->sdid;
57  
58 memcpy(myloader_info.macs, boardp->addr, sizeof(myloader_info.macs));
59  
60 myloader_found = 1;
61  
62 return &myloader_info;
63 }