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-rw-r--r--arch/cris/arch-v10/boot/compressed/misc.c246
1 files changed, 0 insertions, 246 deletions
diff --git a/arch/cris/arch-v10/boot/compressed/misc.c b/arch/cris/arch-v10/boot/compressed/misc.c
deleted file mode 100644
index a4db1507d3b1..000000000000
--- a/arch/cris/arch-v10/boot/compressed/misc.c
+++ /dev/null
@@ -1,246 +0,0 @@
1/*
2 * misc.c
3 *
4 * This is a collection of several routines from gzip-1.0.3
5 * adapted for Linux.
6 *
7 * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
8 * puts by Nick Holloway 1993, better puts by Martin Mares 1995
9 * adaptation for Linux/CRIS Axis Communications AB, 1999
10 *
11 */
12
13/* where the piggybacked kernel image expects itself to live.
14 * it is the same address we use when we network load an uncompressed
15 * image into DRAM, and it is the address the kernel is linked to live
16 * at by vmlinux.lds.S
17 */
18
19#define KERNEL_LOAD_ADR 0x40004000
20
21
22#include <linux/types.h>
23#include <arch/svinto.h>
24
25/*
26 * gzip declarations
27 */
28
29#define OF(args) args
30#define STATIC static
31
32void *memset(void *s, int c, size_t n);
33void *memcpy(void *__dest, __const void *__src, size_t __n);
34
35#define memzero(s, n) memset((s), 0, (n))
36
37typedef unsigned char uch;
38typedef unsigned short ush;
39typedef unsigned long ulg;
40
41#define WSIZE 0x8000 /* Window size must be at least 32k, */
42 /* and a power of two */
43
44static uch *inbuf; /* input buffer */
45static uch window[WSIZE]; /* Sliding window buffer */
46
47unsigned inptr = 0; /* index of next byte to be processed in inbuf
48 * After decompression it will contain the
49 * compressed size, and head.S will read it.
50 */
51
52static unsigned outcnt = 0; /* bytes in output buffer */
53
54/* gzip flag byte */
55#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
56#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
57#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
58#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
59#define COMMENT 0x10 /* bit 4 set: file comment present */
60#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
61#define RESERVED 0xC0 /* bit 6,7: reserved */
62
63#define get_byte() (inbuf[inptr++])
64
65/* Diagnostic functions */
66#ifdef DEBUG
67# define Assert(cond, msg) do { \
68 if (!(cond)) \
69 error(msg); \
70 } while (0)
71# define Trace(x) fprintf x
72# define Tracev(x) do { \
73 if (verbose) \
74 fprintf x; \
75 } while (0)
76# define Tracevv(x) do { \
77 if (verbose > 1) \
78 fprintf x; \
79 } while (0)
80# define Tracec(c, x) do { \
81 if (verbose && (c)) \
82 fprintf x; \
83 } while (0)
84# define Tracecv(c, x) do { \
85 if (verbose > 1 && (c)) \
86 fprintf x; \
87 } while (0)
88#else
89# define Assert(cond, msg)
90# define Trace(x)
91# define Tracev(x)
92# define Tracevv(x)
93# define Tracec(c, x)
94# define Tracecv(c, x)
95#endif
96
97static void flush_window(void);
98static void error(char *m);
99
100extern char *input_data; /* lives in head.S */
101
102static long bytes_out = 0;
103static uch *output_data;
104static unsigned long output_ptr = 0;
105static void puts(const char *);
106
107/* the "heap" is put directly after the BSS ends, at end */
108
109extern int _end;
110static long free_mem_ptr = (long)&_end;
111static long free_mem_end_ptr;
112
113#include "../../../../../lib/inflate.c"
114
115/* decompressor info and error messages to serial console */
116
117static void
118puts(const char *s)
119{
120#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
121 while (*s) {
122#ifdef CONFIG_ETRAX_DEBUG_PORT0
123 while (!(*R_SERIAL0_STATUS & (1 << 5))) ;
124 *R_SERIAL0_TR_DATA = *s++;
125#endif
126#ifdef CONFIG_ETRAX_DEBUG_PORT1
127 while (!(*R_SERIAL1_STATUS & (1 << 5))) ;
128 *R_SERIAL1_TR_DATA = *s++;
129#endif
130#ifdef CONFIG_ETRAX_DEBUG_PORT2
131 while (!(*R_SERIAL2_STATUS & (1 << 5))) ;
132 *R_SERIAL2_TR_DATA = *s++;
133#endif
134#ifdef CONFIG_ETRAX_DEBUG_PORT3
135 while (!(*R_SERIAL3_STATUS & (1 << 5))) ;
136 *R_SERIAL3_TR_DATA = *s++;
137#endif
138 }
139#endif
140}
141
142void *memset(void *s, int c, size_t n)
143{
144 int i;
145 char *ss = (char *)s;
146
147 for (i = 0; i < n; i++)
148 ss[i] = c;
149
150 return s;
151}
152
153void *memcpy(void *__dest, __const void *__src, size_t __n)
154{
155 int i;
156 char *d = (char *)__dest, *s = (char *)__src;
157
158 for (i = 0; i < __n; i++)
159 d[i] = s[i];
160
161 return __dest;
162}
163
164/* ===========================================================================
165 * Write the output window window[0..outcnt-1] and update crc and bytes_out.
166 * (Used for the decompressed data only.)
167 */
168
169static void flush_window(void)
170{
171 ulg c = crc; /* temporary variable */
172 unsigned n;
173 uch *in, *out, ch;
174
175 in = window;
176 out = &output_data[output_ptr];
177 for (n = 0; n < outcnt; n++) {
178 ch = *out = *in;
179 out++;
180 in++;
181 c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
182 }
183 crc = c;
184 bytes_out += (ulg)outcnt;
185 output_ptr += (ulg)outcnt;
186 outcnt = 0;
187}
188
189static void error(char *x)
190{
191 puts("\n\n");
192 puts(x);
193 puts("\n\n -- System halted\n");
194
195 while (1); /* Halt */
196}
197
198void setup_normal_output_buffer(void)
199{
200 output_data = (char *)KERNEL_LOAD_ADR;
201}
202
203void decompress_kernel(void)
204{
205 char revision;
206
207 /* input_data is set in head.S */
208 inbuf = input_data;
209
210#ifdef CONFIG_ETRAX_DEBUG_PORT0
211 *R_SERIAL0_XOFF = 0;
212 *R_SERIAL0_BAUD = 0x99;
213 *R_SERIAL0_TR_CTRL = 0x40;
214#endif
215#ifdef CONFIG_ETRAX_DEBUG_PORT1
216 *R_SERIAL1_XOFF = 0;
217 *R_SERIAL1_BAUD = 0x99;
218 *R_SERIAL1_TR_CTRL = 0x40;
219#endif
220#ifdef CONFIG_ETRAX_DEBUG_PORT2
221 *R_GEN_CONFIG = 0x08;
222 *R_SERIAL2_XOFF = 0;
223 *R_SERIAL2_BAUD = 0x99;
224 *R_SERIAL2_TR_CTRL = 0x40;
225#endif
226#ifdef CONFIG_ETRAX_DEBUG_PORT3
227 *R_GEN_CONFIG = 0x100;
228 *R_SERIAL3_XOFF = 0;
229 *R_SERIAL3_BAUD = 0x99;
230 *R_SERIAL3_TR_CTRL = 0x40;
231#endif
232
233 setup_normal_output_buffer();
234
235 makecrc();
236
237 __asm__ volatile ("move $vr,%0" : "=rm" (revision));
238 if (revision < 10) {
239 puts("You need an ETRAX 100LX to run linux 2.6\n");
240 while (1);
241 }
242
243 puts("Uncompressing Linux...\n");
244 gunzip();
245 puts("Done. Now booting the kernel.\n");
246}
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