diff options
author | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2007-04-17 22:16:28 +0000 |
---|---|---|
committer | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2007-04-17 22:16:28 +0000 |
commit | 11aecf7bfdb789eab2a5e5a36a3172a250158501 (patch) | |
tree | 981a17cf8a33a4f9088c64dfa14f42a6e9c7f748 /target/linux/rb1xx-2.6/image/lzma-loader/src/decompress.c | |
parent | 54a10cd62697ff67ad261902837907da6aa49b37 (diff) |
Remove this target since rb-2.6 will build both rb532 and adm5120 later on
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6992 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/rb1xx-2.6/image/lzma-loader/src/decompress.c')
-rw-r--r-- | target/linux/rb1xx-2.6/image/lzma-loader/src/decompress.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/target/linux/rb1xx-2.6/image/lzma-loader/src/decompress.c b/target/linux/rb1xx-2.6/image/lzma-loader/src/decompress.c deleted file mode 100644 index d3610241f..000000000 --- a/target/linux/rb1xx-2.6/image/lzma-loader/src/decompress.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * LZMA compressed kernel decompressor for bcm947xx boards - * - * Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * - * Please note, this was code based on the bunzip2 decompressor code - * by Manuel Novoa III (mjn3@codepoet.org), although the only thing left - * is an idea and part of original vendor code - * - * - * 12-Mar-2005 Mineharu Takahara <mtakahar@yahoo.com> - * pass actual output size to decoder (stream mode - * compressed input is not a requirement anymore) - * - * 24-Apr-2005 Oleg I. Vdovikin - * reordered functions using lds script, removed forward decl - * - * 24-Mar-2007 Gabor Juhos - * pass original values of the a0,a1,a2,a3 registers to the kernel - * - */ - -#include "LzmaDecode.h" - -#define BCM4710_FLASH 0x1fc00000 /* Flash */ - -#define KSEG0 0x80000000 -#define KSEG1 0xa0000000 - -#define KSEG1ADDR(a) ((((unsigned)(a)) & 0x1fffffffU) | KSEG1) - -#define Index_Invalidate_I 0x00 -#define Index_Writeback_Inv_D 0x01 - -#define cache_unroll(base,op) \ - __asm__ __volatile__( \ - ".set noreorder;\n" \ - ".set mips3;\n" \ - "cache %1, (%0);\n" \ - ".set mips0;\n" \ - ".set reorder\n" \ - : \ - : "r" (base), \ - "i" (op)); - -static __inline__ void blast_icache(unsigned long size, unsigned long lsize) -{ - unsigned long start = KSEG0; - unsigned long end = (start + size); - - while(start < end) { - cache_unroll(start,Index_Invalidate_I); - start += lsize; - } -} - -static __inline__ void blast_dcache(unsigned long size, unsigned long lsize) -{ - unsigned long start = KSEG0; - unsigned long end = (start + size); - - while(start < end) { - cache_unroll(start,Index_Writeback_Inv_D); - start += lsize; - } -} - -#define TRX_MAGIC 0x30524448 /* "HDR0" */ - -struct trx_header { - unsigned int magic; /* "HDR0" */ - unsigned int len; /* Length of file including header */ - unsigned int crc32; /* 32-bit CRC from flag_version to end of file */ - unsigned int flag_version; /* 0:15 flags, 16:31 version */ - unsigned int offsets[3]; /* Offsets of partitions from start of header */ -}; - -/* beyound the image end, size not known in advance */ -extern unsigned char workspace[]; - -unsigned int offset; -unsigned char *data; - -typedef void (*kernel_entry)(unsigned long reg_a0, unsigned long reg_a1, - unsigned long reg_a2, unsigned long reg_a3); - -/* flash access should be aligned, so wrapper is used */ -/* read byte from the flash, all accesses are 32-bit aligned */ -static int read_byte(void *object, unsigned char **buffer, UInt32 *bufferSize) -{ - static unsigned int val; - - if (((unsigned int)offset % 4) == 0) { - val = *(unsigned int *)data; - data += 4; - } - - *bufferSize = 1; - *buffer = ((unsigned char *)&val) + (offset++ & 3); - - return LZMA_RESULT_OK; -} - -static __inline__ unsigned char get_byte(void) -{ - unsigned char *buffer; - UInt32 fake; - - return read_byte(0, &buffer, &fake), *buffer; -} - -/* should be the first function */ -void entry(unsigned long reg_a0, unsigned long reg_a1, - unsigned long reg_a2, unsigned long reg_a3, - unsigned long icache_size, unsigned long icache_lsize, - unsigned long dcache_size, unsigned long dcache_lsize) -{ - unsigned int i; /* temp value */ - unsigned int lc; /* literal context bits */ - unsigned int lp; /* literal pos state bits */ - unsigned int pb; /* pos state bits */ - unsigned int osize; /* uncompressed size */ - - ILzmaInCallback callback; - callback.Read = read_byte; - - uart_write_str("decompress kernel ... "); - - /* look for trx header, 32-bit data access */ - for (data = ((unsigned char *) KSEG1ADDR(BCM4710_FLASH)); - ((struct trx_header *)data)->magic != TRX_MAGIC; data += 65536); - - /* compressed kernel is in the partition 0 or 1 */ - if (((struct trx_header *)data)->offsets[1] > 65536) - data += ((struct trx_header *)data)->offsets[0]; - else - data += ((struct trx_header *)data)->offsets[1]; - - offset = 0; - - /* lzma args */ - i = get_byte(); - lc = i % 9, i = i / 9; - lp = i % 5, pb = i / 5; - - /* skip rest of the LZMA coder property */ - for (i = 0; i < 4; i++) - get_byte(); - - /* read the lower half of uncompressed size in the header */ - osize = ((unsigned int)get_byte()) + - ((unsigned int)get_byte() << 8) + - ((unsigned int)get_byte() << 16) + - ((unsigned int)get_byte() << 24); - - /* skip rest of the header (upper half of uncompressed size) */ - for (i = 0; i < 4; i++) - get_byte(); - - /* decompress kernel */ - if (LzmaDecode(workspace, ~0, lc, lp, pb, &callback, - (unsigned char*)LOADADDR, osize, &i) == LZMA_RESULT_OK) - { - blast_dcache(dcache_size, dcache_lsize); - blast_icache(icache_size, icache_lsize); - - /* Jump to load address */ - uart_write_str("ok\r\n"); - ((kernel_entry) LOADADDR)(reg_a0, reg_a1, reg_a2, reg_a3); - } - uart_write_str("failed\r\n"); - while (1 ); -} - -/* ********************************************************************* - * - * ADM5120 UART driver File: dev_adm_uart.c - * - * This is a console device driver for an ADM5120 UART - * - ********************************************************************* - * - * Copyright 2006 - * Compex Systems. All rights reserved. - * - ********************************************************************* */ - -#define READCSR(r) *(volatile UInt32 *)(0xB2600000+(r)) -#define WRITECSR(r,v) *(volatile UInt32 *)(0xB2600000+(r)) = v - -#define UART_DR_REG 0x00 -#define UART_FR_REG 0x18 -#define UART_TX_FIFO_FULL 0x20 - -int uart_write(int val) -{ - WRITECSR(UART_DR_REG, val); - while ( (READCSR(UART_FR_REG) & UART_TX_FIFO_FULL) ); - return 0; -} - -int uart_write_str(char * str) -{ - while ( *str != 0 ) { - uart_write ( *str++ ); - } - return 0; -} - -int uart_write_hex(int val) -{ - int i; - int tmp; - - uart_write_str("0x"); - for ( i=0 ; i<8 ; i++ ) { - tmp = (val >> ((7-i) * 4 )) & 0xf; - tmp = tmp < 10 ? (tmp + '0') : (tmp + 'A' - 10); - uart_write(tmp); - } - uart_write_str("\r\n"); - return 0; -} - |