diff options
| author | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-02-07 15:42:54 +0100 |
|---|---|---|
| committer | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2020-02-14 14:10:51 +0100 |
| commit | 8fe5ad5d3373cebed4fbc55a7b779721971ce427 (patch) | |
| tree | 5d9106ede800508dde24c21dda7f90b8b1b8af5b /target/linux/bcm47xx/image/lzma-loader/src/README | |
| parent | 8590e70fab64172700c21bc5e658eba17a1eae70 (diff) | |
| download | upstream-8fe5ad5d3373cebed4fbc55a7b779721971ce427.tar.gz upstream-8fe5ad5d3373cebed4fbc55a7b779721971ce427.tar.bz2 upstream-8fe5ad5d3373cebed4fbc55a7b779721971ce427.zip | |
brcm47xx: rename target to bcm47xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Diffstat (limited to 'target/linux/bcm47xx/image/lzma-loader/src/README')
| -rw-r--r-- | target/linux/bcm47xx/image/lzma-loader/src/README | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/bcm47xx/image/lzma-loader/src/README b/target/linux/bcm47xx/image/lzma-loader/src/README new file mode 100644 index 0000000000..16649e9500 --- /dev/null +++ b/target/linux/bcm47xx/image/lzma-loader/src/README @@ -0,0 +1,55 @@ +/* + * 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 + * + */ + +The code is intended to decompress kernel, being compressed using lzma utility +build using 7zip LZMA SDK. This utility is located in the LZMA_Alone directory + +decompressor code expects that your .trx file consist of three partitions: + +1) decompressor itself (this is gziped code which pmon/cfe will extract and run +on boot-up instead of real kernel) +2) LZMA compressed kernel (both streamed and regular modes are supported now) +3) Root filesystem + +Please be sure to apply the following patch for use this new trx layout (it will +allow using both new and old trx files for root filesystem lookup code) + +--- linuz/arch/mips/brcm-boards/bcm947xx/setup.c 2005-01-23 19:24:27.503322896 +0300 ++++ linux/arch/mips/brcm-boards/bcm947xx/setup.c 2005-01-23 19:29:05.237100944 +0300 +@@ -221,7 +221,9 @@ + /* Try looking at TRX header for rootfs offset */ + if (le32_to_cpu(trx->magic) == TRX_MAGIC) { + bcm947xx_parts[1].offset = off; +- if (le32_to_cpu(trx->offsets[1]) > off) ++ if (le32_to_cpu(trx->offsets[2]) > off) ++ off = le32_to_cpu(trx->offsets[2]); ++ else if (le32_to_cpu(trx->offsets[1]) > off) + off = le32_to_cpu(trx->offsets[1]); + continue; + } + + +Revision history: + 0.02 Initial release + 0.03 Added Mineharu Takahara <mtakahar@yahoo.com> patch to pass actual + output size to decoder (stream mode compressed input is not + a requirement anymore) + 0.04 Reordered functions using lds script |