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Rafał Miłecki 5e885c09c6 bcm53xx: switch back to standalone ASM entry flushing cache
Over a year ago in a commit ac96a1665a ("bcm53xx: update Disable MMU
and Dcache during decompression") we switched to Florian's patch for
workarounding CFE bug. The main difference was using a part of existing
__armv7_mmu_cache_flush instead of implementing flushing separately.

This worked well for Northstar devices but doesn't work for BCM53573 as
these devices simply don't start booting with Florian's patch. It's
because of the ldmfd ASM instruction in the __armv7_mmu_cache_flush.

So this commit switches back to using standalone implementation. This
time instead of copying Broadcom's copy of cache-v7.S, we just make a
copy of the original file on our own. Unfortunately we can't cross-dir
compile cache-v7.S from ../../mm/ as that one also adds __INITDATA with
define_cache_functions v7 which would just trigger
> Error: unrecognized/unsupported machine ID (r1 = 0x0000007f).

The only real change Broadcom did in copied .S file was modifying mcr
instruction to use c6 instead of c14. It isn't clear to me if we really
need it, but let's use it for now.

By the way we also update commit message of the
[PATCH] ARM: BCM5301X: Disable MMU and Dcache during decompression

This makes kernel booting on BCM53573 successfully.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2016-08-19 11:38:44 +02:00
config apm821xx: use lzma compression for the initramfs images 2016-07-25 10:38:11 +02:00
docs build: Prevent more gzip timestamps 2015-07-14 09:57:45 +00:00
include kernel: check the right directories for rebuild 2016-08-19 11:02:47 +02:00
package busybox: enable sha256sum by default 2016-08-18 15:09:06 +02:00
scripts scripts: ipkg-build: do not require git or svn 2016-08-15 13:33:32 +02:00
target bcm53xx: switch back to standalone ASM entry flushing cache 2016-08-19 11:38:44 +02:00
toolchain toolchain/uClibc: add missing config symbol 2016-08-15 01:49:18 +02:00
tools tools: Select dosfstools for archs38 2016-08-18 21:41:38 +02:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore build: add integration for managing opkg package feed keys 2015-04-06 19:39:51 +00:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in branding: add LEDE branding 2016-03-24 22:40:13 +01:00
feeds.conf.default feeds: switch from github to lede-project.org mirrors 2016-08-01 22:34:18 +02:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: move merged package directory from bin/ to staging_dir 2016-08-03 12:22:18 +02:00
README README: Update project README 2016-05-12 03:29:36 +02:00
rules.mk build: add checksum target 2016-08-01 18:11:21 +02:00

This is the buildsystem for the LEDE Linux distribution.

Please use "make menuconfig" to choose your preferred
configuration for the toolchain and firmware.

You need to have installed gcc, binutils, bzip2, flex, python, perl, make,
find, grep, diff, unzip, gawk, getopt, subversion, libz-dev and libc headers.

Run "./scripts/feeds update -a" to get all the latest package definitions
defined in feeds.conf / feeds.conf.default respectively
and "./scripts/feeds install -a" to install symlinks of all of them into
package/feeds/.

Use "make menuconfig" to configure your image.

Simply running "make" will build your firmware.
It will download all sources, build the cross-compile toolchain, 
the kernel and all choosen applications.

To build your own firmware you need to have access to a Linux, BSD or MacOSX system
(case-sensitive filesystem required). Cygwin will not be supported because of
the lack of case sensitiveness in the file system.


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