diff options
Diffstat (limited to 'arch/cris/arch-v10/boot/compressed')
| -rw-r--r-- | arch/cris/arch-v10/boot/compressed/Makefile | 27 | ||||
| -rw-r--r-- | arch/cris/arch-v10/boot/compressed/README | 25 | ||||
| -rw-r--r-- | arch/cris/arch-v10/boot/compressed/decompress.lds | 30 | ||||
| -rw-r--r-- | arch/cris/arch-v10/boot/compressed/head.S | 126 | ||||
| -rw-r--r-- | arch/cris/arch-v10/boot/compressed/misc.c | 246 |
5 files changed, 0 insertions, 454 deletions
diff --git a/arch/cris/arch-v10/boot/compressed/Makefile b/arch/cris/arch-v10/boot/compressed/Makefile deleted file mode 100644 index 6fe0ffaf3be..00000000000 --- a/arch/cris/arch-v10/boot/compressed/Makefile +++ /dev/null @@ -1,27 +0,0 @@ -# -# arch/cris/arch-v10/boot/compressed/Makefile -# - -asflags-y += $(LINUXINCLUDE) -ccflags-y += -O2 $(LINUXINCLUDE) -ldflags-y += -T $(srctree)/$(src)/decompress.lds -OBJECTS = $(obj)/head.o $(obj)/misc.o -OBJCOPYFLAGS = -O binary --remove-section=.bss - -quiet_cmd_image = BUILD $@ -cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@ - -targets := vmlinux piggy.gz decompress.o decompress.bin - -$(obj)/decompress.o: $(OBJECTS) FORCE - $(call if_changed,ld) - -$(obj)/decompress.bin: $(obj)/decompress.o FORCE - $(call if_changed,objcopy) - -$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE - $(call if_changed,image) - -$(obj)/piggy.gz: $(obj)/../Image FORCE - $(call if_changed,gzip) - diff --git a/arch/cris/arch-v10/boot/compressed/README b/arch/cris/arch-v10/boot/compressed/README deleted file mode 100644 index 48b3db9924b..00000000000 --- a/arch/cris/arch-v10/boot/compressed/README +++ /dev/null @@ -1,25 +0,0 @@ -Creation of the self-extracting compressed kernel image (vmlinuz) ------------------------------------------------------------------ -$Id: README,v 1.1 2001/12/17 13:59:27 bjornw Exp $ - -This can be slightly confusing because it's a process with many steps. - -The kernel object built by the arch/etrax100/Makefile, vmlinux, is split -by that makefile into text and data binary files, vmlinux.text and -vmlinux.data. - -Those files together with a ROM filesystem can be catted together and -burned into a flash or executed directly at the DRAM origin. - -They can also be catted together and compressed with gzip, which is what -happens in this makefile. Together they make up piggy.img. - -The decompressor is built into the file decompress.o. It is turned into -the binary file decompress.bin, which is catted together with piggy.img -into the file vmlinuz. It can be executed in an arbitrary place in flash. - -Be careful - it assumes some things about free locations in DRAM. It -assumes the DRAM starts at 0x40000000 and that it is at least 8 MB, -so it puts its code at 0x40700000, and initial stack at 0x40800000. - --Bjorn diff --git a/arch/cris/arch-v10/boot/compressed/decompress.lds b/arch/cris/arch-v10/boot/compressed/decompress.lds deleted file mode 100644 index e80f4594d54..00000000000 --- a/arch/cris/arch-v10/boot/compressed/decompress.lds +++ /dev/null @@ -1,30 +0,0 @@ -/* OUTPUT_FORMAT(elf32-us-cris) */ -OUTPUT_FORMAT(elf32-cris) - -MEMORY - { - dram : ORIGIN = 0x40700000, - LENGTH = 0x00100000 - } - -SECTIONS -{ - .text : - { - _stext = . ; - *(.text) - *(.rodata) - *(.rodata.*) - _etext = . ; - } > dram - .data : - { - *(.data) - _edata = . ; - } > dram - .bss : - { - *(.bss) - _end = ALIGN( 0x10 ) ; - } > dram -} diff --git a/arch/cris/arch-v10/boot/compressed/head.S b/arch/cris/arch-v10/boot/compressed/head.S deleted file mode 100644 index 0bb4dcc2925..00000000000 --- a/arch/cris/arch-v10/boot/compressed/head.S +++ /dev/null @@ -1,126 +0,0 @@ -/* - * arch/cris/boot/compressed/head.S - * - * Copyright (C) 1999, 2001 Axis Communications AB - * - * Code that sets up the DRAM registers, calls the - * decompressor to unpack the piggybacked kernel, and jumps. - * - */ - -#define ASSEMBLER_MACROS_ONLY -#include <arch/sv_addr_ag.h> - -#define RAM_INIT_MAGIC 0x56902387 -#define COMMAND_LINE_MAGIC 0x87109563 - - ;; Exported symbols - - .globl input_data - - - .text - - nop - di - -;; We need to initialze DRAM registers before we start using the DRAM - - cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized? - beq dram_init_finished - nop - -#include "../../lib/dram_init.S" - -dram_init_finished: - - ;; Initiate the PA and PB ports - - move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0 - move.b $r0, [R_PORT_PA_DATA] - - move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0 - move.b $r0, [R_PORT_PA_DIR] - - move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0 - move.b $r0, [R_PORT_PB_DATA] - - move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0 - move.b $r0, [R_PORT_PB_DIR] - - ;; Setup the stack to a suitably high address. - ;; We assume 8 MB is the minimum DRAM in an eLinux - ;; product and put the sp at the top for now. - - move.d 0x40800000, $sp - - ;; Figure out where the compressed piggyback image is - ;; in the flash (since we wont try to copy it to DRAM - ;; before unpacking). It is at _edata, but in flash. - ;; Use (_edata - basse) as offset to the current PC. - -basse: move.d $pc, $r5 - and.d 0x7fffffff, $r5 ; strip any non-cache bit - subq 2, $r5 ; compensate for the move.d $pc instr - move.d $r5, $r0 ; save for later - flash address of 'basse' - add.d _edata, $r5 - sub.d basse, $r5 ; $r5 = flash address of '_edata' - - ;; Copy text+data to DRAM - - move.d basse, $r1 ; destination - move.d _edata, $r2 ; end destination -1: move.w [$r0+], $r3 - move.w $r3, [$r1+] - cmp.d $r2, $r1 - bcs 1b - nop - - move.d $r5, [input_data] ; for the decompressor - - - ;; Clear the decompressors BSS (between _edata and _end) - - moveq 0, $r0 - move.d _edata, $r1 - move.d _end, $r2 -1: move.w $r0, [$r1+] - cmp.d $r2, $r1 - bcs 1b - nop - - ;; Save command line magic and address. - move.d _cmd_line_magic, $r12 - move.d $r10, [$r12] - move.d _cmd_line_addr, $r12 - move.d $r11, [$r12] - - ;; Do the decompression and save compressed size in inptr - - jsr decompress_kernel - - ;; Put start address of root partition in $r9 so the kernel can use it - ;; when mounting from flash - - move.d [input_data], $r9 ; flash address of compressed kernel - add.d [inptr], $r9 ; size of compressed kernel - - ;; Restore command line magic and address. - move.d _cmd_line_magic, $r10 - move.d [$r10], $r10 - move.d _cmd_line_addr, $r11 - move.d [$r11], $r11 - - ;; Enter the decompressed kernel - move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized - jump 0x40004000 ; kernel is linked to this address - - .data - -input_data: - .dword 0 ; used by the decompressor -_cmd_line_magic: - .dword 0 -_cmd_line_addr: - .dword 0 -#include "../../lib/hw_settings.S" 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 a4db1507d3b..00000000000 --- a/arch/cris/arch-v10/boot/compressed/misc.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * misc.c - * - * This is a collection of several routines from gzip-1.0.3 - * adapted for Linux. - * - * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 - * puts by Nick Holloway 1993, better puts by Martin Mares 1995 - * adaptation for Linux/CRIS Axis Communications AB, 1999 - * - */ - -/* where the piggybacked kernel image expects itself to live. - * it is the same address we use when we network load an uncompressed - * image into DRAM, and it is the address the kernel is linked to live - * at by vmlinux.lds.S - */ - -#define KERNEL_LOAD_ADR 0x40004000 - - -#include <linux/types.h> -#include <arch/svinto.h> - -/* - * gzip declarations - */ - -#define OF(args) args -#define STATIC static - -void *memset(void *s, int c, size_t n); -void *memcpy(void *__dest, __const void *__src, size_t __n); - -#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 */ - -unsigned inptr = 0; /* index of next byte to be processed in inbuf - * After decompression it will contain the - * compressed size, and head.S will read it. - */ - -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() (inbuf[inptr++]) - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond, msg) do { \ - if (!(cond)) \ - error(msg); \ - } while (0) -# define Trace(x) fprintf x -# define Tracev(x) do { \ - if (verbose) \ - fprintf x; \ - } while (0) -# define Tracevv(x) do { \ - if (verbose > 1) \ - fprintf x; \ - } while (0) -# define Tracec(c, x) do { \ - if (verbose && (c)) \ - fprintf x; \ - } while (0) -# define Tracecv(c, x) do { \ - if (verbose > 1 && (c)) \ - fprintf x; \ - } while (0) -#else -# define Assert(cond, msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c, x) -# define Tracecv(c, x) -#endif - -static void flush_window(void); -static void error(char *m); - -extern char *input_data; /* lives in head.S */ - -static long bytes_out = 0; -static uch *output_data; -static unsigned long output_ptr = 0; -static void puts(const char *); - -/* the "heap" is put directly after the BSS ends, at end */ - -extern int _end; -static long free_mem_ptr = (long)&_end; -static long free_mem_end_ptr; - -#include "../../../../../lib/inflate.c" - -/* decompressor info and error messages to serial console */ - -static void -puts(const char *s) -{ -#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL - while (*s) { -#ifdef CONFIG_ETRAX_DEBUG_PORT0 - while (!(*R_SERIAL0_STATUS & (1 << 5))) ; - *R_SERIAL0_TR_DATA = *s++; -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT1 - while (!(*R_SERIAL1_STATUS & (1 << 5))) ; - *R_SERIAL1_TR_DATA = *s++; -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT2 - while (!(*R_SERIAL2_STATUS & (1 << 5))) ; - *R_SERIAL2_TR_DATA = *s++; -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT3 - while (!(*R_SERIAL3_STATUS & (1 << 5))) ; - *R_SERIAL3_TR_DATA = *s++; -#endif - } -#endif -} - -void *memset(void *s, int c, size_t n) -{ - int i; - char *ss = (char *)s; - - for (i = 0; i < n; i++) - ss[i] = c; - - return s; -} - -void *memcpy(void *__dest, __const void *__src, size_t __n) -{ - int i; - char *d = (char *)__dest, *s = (char *)__src; - - for (i = 0; i < __n; i++) - d[i] = s[i]; - - return __dest; -} - -/* =========================================================================== - * 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; - out++; - in++; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - output_ptr += (ulg)outcnt; - outcnt = 0; -} - -static void error(char *x) -{ - puts("\n\n"); - puts(x); - puts("\n\n -- System halted\n"); - - while (1); /* Halt */ -} - -void setup_normal_output_buffer(void) -{ - output_data = (char *)KERNEL_LOAD_ADR; -} - -void decompress_kernel(void) -{ - char revision; - - /* input_data is set in head.S */ - inbuf = input_data; - -#ifdef CONFIG_ETRAX_DEBUG_PORT0 - *R_SERIAL0_XOFF = 0; - *R_SERIAL0_BAUD = 0x99; - *R_SERIAL0_TR_CTRL = 0x40; -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT1 - *R_SERIAL1_XOFF = 0; - *R_SERIAL1_BAUD = 0x99; - *R_SERIAL1_TR_CTRL = 0x40; -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT2 - *R_GEN_CONFIG = 0x08; - *R_SERIAL2_XOFF = 0; - *R_SERIAL2_BAUD = 0x99; - *R_SERIAL2_TR_CTRL = 0x40; -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT3 - *R_GEN_CONFIG = 0x100; - *R_SERIAL3_XOFF = 0; - *R_SERIAL3_BAUD = 0x99; - *R_SERIAL3_TR_CTRL = 0x40; -#endif - - setup_normal_output_buffer(); - - makecrc(); - - __asm__ volatile ("move $vr,%0" : "=rm" (revision)); - if (revision < 10) { - puts("You need an ETRAX 100LX to run linux 2.6\n"); - while (1); - } - - puts("Uncompressing Linux...\n"); - gunzip(); - puts("Done. Now booting the kernel.\n"); -} |