diff options
Diffstat (limited to 'arch/sh/boot/compressed/misc_64.c')
| -rw-r--r-- | arch/sh/boot/compressed/misc_64.c | 127 |
1 files changed, 7 insertions, 120 deletions
diff --git a/arch/sh/boot/compressed/misc_64.c b/arch/sh/boot/compressed/misc_64.c index 2941657e18aa..0c6894e37115 100644 --- a/arch/sh/boot/compressed/misc_64.c +++ b/arch/sh/boot/compressed/misc_64.c @@ -20,67 +20,18 @@ int cache_control(unsigned int command); * gzip declarations */ -#define OF(args) args #define STATIC static #undef memset #undef memcpy #define memzero(s, n) memset ((s), 0, (n)) -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -#define WSIZE 0x8000 /* Window size must be at least 32k, */ - /* and a power of two */ - -static uch *inbuf; /* input buffer */ -static uch window[WSIZE]; /* Sliding window buffer */ - -static unsigned insize = 0; /* valid bytes in inbuf */ -static unsigned inptr = 0; /* index of next byte to be processed in inbuf */ -static unsigned outcnt = 0; /* bytes in output buffer */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ -#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ -#define RESERVED 0xC0 /* bit 6,7: reserved */ - -#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond,msg) {if(!(cond)) error(msg);} -# define Trace(x) fprintf x -# define Tracev(x) {if (verbose) fprintf x ;} -# define Tracevv(x) {if (verbose>1) fprintf x ;} -# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} -# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - -static int fill_inbuf(void); -static void flush_window(void); static void error(char *m); extern char input_data[]; extern int input_len; -static long bytes_out = 0; -static uch *output_data; -static unsigned long output_ptr = 0; - -static void error(char *m); +static unsigned char *output_data; static void puts(const char *); @@ -91,7 +42,9 @@ static unsigned long free_mem_end_ptr; #define HEAP_SIZE 0x10000 -#include "../../../../lib/inflate.c" +#ifdef CONFIG_KERNEL_GZIP +#include "../../../../lib/decompress_inflate.c" +#endif void puts(const char *s) { @@ -117,45 +70,6 @@ void *memcpy(void *__dest, __const void *__src, size_t __n) return __dest; } -/* =========================================================================== - * Fill the input buffer. This is called only when the buffer is empty - * and at least one byte is really needed. - */ -static int fill_inbuf(void) -{ - if (insize != 0) { - error("ran out of input data\n"); - } - - inbuf = input_data; - insize = input_len; - inptr = 1; - return inbuf[0]; -} - -/* =========================================================================== - * Write the output window window[0..outcnt-1] and update crc and bytes_out. - * (Used for the decompressed data only.) - */ -static void flush_window(void) -{ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, *out, ch; - - in = window; - out = &output_data[output_ptr]; - for (n = 0; n < outcnt; n++) { - ch = *out++ = *in++; - c = crc_32_tab[((int) c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg) outcnt; - output_ptr += (ulg) outcnt; - outcnt = 0; - puts("."); -} - static void error(char *x) { puts("\n\n"); @@ -171,40 +85,13 @@ long *stack_start = &user_stack[STACK_SIZE]; void decompress_kernel(void) { - output_data = (uch *) (CONFIG_MEMORY_START + 0x2000); + output_data = (unsigned char *) (CONFIG_MEMORY_START + 0x2000); free_mem_ptr = (unsigned long) &_end; free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; - makecrc(); puts("Uncompressing Linux... "); cache_control(CACHE_ENABLE); - gunzip(); - puts("\n"); - -#if 0 - /* When booting from ROM may want to do something like this if the - * boot loader doesn't. - */ - - /* Set up the parameters and command line */ - { - volatile unsigned int *parambase = - (int *) (CONFIG_MEMORY_START + 0x1000); - - parambase[0] = 0x1; /* MOUNT_ROOT_RDONLY */ - parambase[1] = 0x0; /* RAMDISK_FLAGS */ - parambase[2] = 0x0200; /* ORIG_ROOT_DEV */ - parambase[3] = 0x0; /* LOADER_TYPE */ - parambase[4] = 0x0; /* INITRD_START */ - parambase[5] = 0x0; /* INITRD_SIZE */ - parambase[6] = 0; - - strcpy((char *) ((int) parambase + 0x100), - "console=ttySC0,38400"); - } -#endif - - puts("Ok, booting the kernel.\n"); - + decompress(input_data, input_len, NULL, NULL, output_data, NULL, error); cache_control(CACHE_DISABLE); + puts("Ok, booting the kernel.\n"); } |