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-rw-r--r--arch/arm26/kernel/compat.c173
1 files changed, 0 insertions, 173 deletions
diff --git a/arch/arm26/kernel/compat.c b/arch/arm26/kernel/compat.c
deleted file mode 100644
index 21e966ff0aa7..000000000000
--- a/arch/arm26/kernel/compat.c
+++ /dev/null
@@ -1,173 +0,0 @@
1/*
2 * linux/arch/arm26/kernel/compat.c
3 *
4 * Copyright (C) 2001 Russell King
5 * 2003 Ian Molton
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * We keep the old params compatibility cruft in one place (here)
12 * so we don't end up with lots of mess around other places.
13 *
14 * NOTE:
15 * The old struct param_struct is deprecated, but it will be kept in
16 * the kernel for 5 years from now (2001). This will allow boot loaders
17 * to convert to the new struct tag way.
18 */
19#include <linux/types.h>
20#include <linux/kernel.h>
21#include <linux/string.h>
22#include <linux/init.h>
23
24#include <asm/setup.h>
25#include <asm/mach-types.h>
26#include <asm/page.h>
27
28//#include <asm/arch.h>
29//#include <asm/mach/irq.h>
30
31/*
32 * Usage:
33 * - do not go blindly adding fields, add them at the end
34 * - when adding fields, don't rely on the address until
35 * a patch from me has been released
36 * - unused fields should be zero (for future expansion)
37 * - this structure is relatively short-lived - only
38 * guaranteed to contain useful data in setup_arch()
39 *
40 * This is the old deprecated way to pass parameters to the kernel
41 */
42struct param_struct {
43 union {
44 struct {
45 unsigned long page_size; /* 0 */
46 unsigned long nr_pages; /* 4 */
47 unsigned long ramdisk_size; /* 8 */
48 unsigned long flags; /* 12 */
49#define FLAG_READONLY 1
50#define FLAG_RDLOAD 4
51#define FLAG_RDPROMPT 8
52 unsigned long rootdev; /* 16 */
53 unsigned long video_num_cols; /* 20 */
54 unsigned long video_num_rows; /* 24 */
55 unsigned long video_x; /* 28 */
56 unsigned long video_y; /* 32 */
57 unsigned long memc_control_reg; /* 36 */
58 unsigned char sounddefault; /* 40 */
59 unsigned char adfsdrives; /* 41 */
60 unsigned char bytes_per_char_h; /* 42 */
61 unsigned char bytes_per_char_v; /* 43 */
62 unsigned long pages_in_bank[4]; /* 44 */
63 unsigned long pages_in_vram; /* 60 */
64 unsigned long initrd_start; /* 64 */
65 unsigned long initrd_size; /* 68 */
66 unsigned long rd_start; /* 72 */
67 unsigned long system_rev; /* 76 */
68 unsigned long system_serial_low; /* 80 */
69 unsigned long system_serial_high; /* 84 */
70 unsigned long mem_fclk_21285; /* 88 */
71 } s;
72 char unused[256];
73 } u1;
74 union {
75 char paths[8][128];
76 struct {
77 unsigned long magic;
78 char n[1024 - sizeof(unsigned long)];
79 } s;
80 } u2;
81 char commandline[COMMAND_LINE_SIZE];
82};
83
84static struct tag * __init memtag(struct tag *tag, unsigned long start, unsigned long size)
85{
86 tag = tag_next(tag);
87 tag->hdr.tag = ATAG_MEM;
88 tag->hdr.size = tag_size(tag_mem32);
89 tag->u.mem.size = size;
90 tag->u.mem.start = start;
91
92 return tag;
93}
94
95static void __init build_tag_list(struct param_struct *params, void *taglist)
96{
97 struct tag *tag = taglist;
98
99 if (params->u1.s.page_size != PAGE_SIZE) {
100 printk(KERN_WARNING "Warning: bad configuration page, "
101 "trying to continue\n");
102 return;
103 }
104
105 printk(KERN_DEBUG "Converting old-style param struct to taglist\n");
106
107 tag->hdr.tag = ATAG_CORE;
108 tag->hdr.size = tag_size(tag_core);
109 tag->u.core.flags = params->u1.s.flags & FLAG_READONLY;
110 tag->u.core.pagesize = params->u1.s.page_size;
111 tag->u.core.rootdev = params->u1.s.rootdev;
112
113 tag = tag_next(tag);
114 tag->hdr.tag = ATAG_RAMDISK;
115 tag->hdr.size = tag_size(tag_ramdisk);
116 tag->u.ramdisk.flags = (params->u1.s.flags & FLAG_RDLOAD ? 1 : 0) |
117 (params->u1.s.flags & FLAG_RDPROMPT ? 2 : 0);
118 tag->u.ramdisk.size = params->u1.s.ramdisk_size;
119 tag->u.ramdisk.start = params->u1.s.rd_start;
120
121 tag = tag_next(tag);
122 tag->hdr.tag = ATAG_INITRD;
123 tag->hdr.size = tag_size(tag_initrd);
124 tag->u.initrd.start = params->u1.s.initrd_start;
125 tag->u.initrd.size = params->u1.s.initrd_size;
126
127 tag = tag_next(tag);
128 tag->hdr.tag = ATAG_SERIAL;
129 tag->hdr.size = tag_size(tag_serialnr);
130 tag->u.serialnr.low = params->u1.s.system_serial_low;
131 tag->u.serialnr.high = params->u1.s.system_serial_high;
132
133 tag = tag_next(tag);
134 tag->hdr.tag = ATAG_REVISION;
135 tag->hdr.size = tag_size(tag_revision);
136 tag->u.revision.rev = params->u1.s.system_rev;
137
138 tag = memtag(tag, PHYS_OFFSET, params->u1.s.nr_pages * PAGE_SIZE);
139
140 tag = tag_next(tag);
141 tag->hdr.tag = ATAG_ACORN;
142 tag->hdr.size = tag_size(tag_acorn);
143 tag->u.acorn.memc_control_reg = params->u1.s.memc_control_reg;
144 tag->u.acorn.vram_pages = params->u1.s.pages_in_vram;
145 tag->u.acorn.sounddefault = params->u1.s.sounddefault;
146 tag->u.acorn.adfsdrives = params->u1.s.adfsdrives;
147
148 tag = tag_next(tag);
149 tag->hdr.tag = ATAG_CMDLINE;
150 tag->hdr.size = (strlen(params->commandline) + 3 +
151 sizeof(struct tag_header)) >> 2;
152 strcpy(tag->u.cmdline.cmdline, params->commandline);
153
154 tag = tag_next(tag);
155 tag->hdr.tag = ATAG_NONE;
156 tag->hdr.size = 0;
157
158 memmove(params, taglist, ((int)tag) - ((int)taglist) +
159 sizeof(struct tag_header));
160}
161
162void __init convert_to_tag_list(struct tag *tags)
163{
164 struct param_struct *params = (struct param_struct *)tags;
165 build_tag_list(params, &params->u2);
166}
167
168void __init squash_mem_tags(struct tag *tag)
169{
170 for (; tag->hdr.size; tag = tag_next(tag))
171 if (tag->hdr.tag == ATAG_MEM)
172 tag->hdr.tag = ATAG_NONE;
173}
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