linux.git/arch/mips/boot/compressed, branch v4.11

MIPS: zboot: Consolidate compiler flag filtering.

2017-01-03T15:48:40+00:00

Al Viro noticed that we were using two different methods to filter out
flags from KBUILD_CFLAGS.

Signed-off-by: Ralf Baechle 
Reported-by: Al Viro

MIPS: Zboot: Don't use $(LINUXINCLUDE) twice

2017-01-03T15:34:32+00:00

The make variables KBUILD_CFLAGS and KBUILD_AFLAGS both contain
$(LINUXINCLUDE). But the build already picks up $(LINUXINCLUDE) from
scripts/Makefile.lib. The net effect is that the (long) list of include
directories is used twice.

This is harmless but pointless. So stop using $(LINUXINCLUDE) twice.

Signed-off-by: Paul Bolle 
Cc: Masahiro Yamada 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14622/
Signed-off-by: Ralf Baechle

MIPS: zboot: Add "uzImage.bin" target

2017-01-03T15:34:31+00:00

uzImage.bin is vmlinuz.bin wrapped in a legacy U-Boot image. Since
the extraction code is inside the image, it does not depend on the
boot loader to extract the kernel.

Signed-off-by: Maarten ter Huurne 
Cc: Alban Bedel 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14473/
Signed-off-by: Ralf Baechle

MIPS: ZBOOT: copy appended dtb to the end of the kernel

2016-08-02T12:00:16+00:00

Instead of rewriting the arguments, just move the appended dtb to where
the decompressed kernel expects it. This eliminates the need for special
casing vmlinuz.bin appended dtb files.

Signed-off-by: Jonas Gorski 
Cc: Kevin Cernekee 
Cc: Florian Fainelli 
Cc: John Crispin 
Cc: Paul Burton 
Cc: James Hogan 
Cc: Alban Bedel 
Cc: Daniel Gimpelevich 
Cc: Antony Pavlov 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13698/
Signed-off-by: Ralf Baechle

MIPS: ath79: Add zboot debug serial support

2016-05-13T12:01:37+00:00

Reuse the early printk code to support the serial in zboot. We copy
early_printk.c instead of referencing it because we need to build a
different object file for the normal kernel and zboot.

Signed-off-by: Alban Bedel 
Cc: Andrew Bresticker 
Cc: Alex Smith 
Cc: Wu Zhangjin 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12234/
Signed-off-by: Ralf Baechle

MIPS: zboot: Remove copied source files on clean

2016-04-03T08:37:21+00:00

The copied source files must be added to the extra-y list to have them
removed on clean.

Signed-off-by: Alban Bedel 
Cc: Andrew Bresticker 
Cc: Alex Smith 
Cc: Wu Zhangjin 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12233/
Signed-off-by: Ralf Baechle

MIPS: zboot: Fix the build with XZ compression on older GCC versions

2016-04-03T08:37:13+00:00

Some older GCC version (at least 4.6) emits calls to __bswapsi2() when
building the XZ decompressor. The link of the compressed image then
fails with the following error:

arch/mips/boot/compressed/decompress.o: In function '__fswab32':
include/uapi/linux/swab.h:60: undefined reference to '__bswapsi2'

Add bswapsi.o to the link to fix the build with these versions.

Signed-off-by: Alban Bedel 
Cc: Andrew Bresticker 
Cc: Alex Smith 
Cc: Wu Zhangjin 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12232/
Signed-off-by: Ralf Baechle

MIPS: Fix build with DEBUG_ZBOOT and MACH_JZ4780

2016-03-13T09:50:46+00:00

Ingenic SoC declares ZBOOT support, but debug definitions are missing
for MACH_JZ4780 resulting in a build failure when DEBUG_ZBOOT is set.
The UART addresses are same as with JZ4740, so fix by covering JZ4780
with those as well.

Signed-off-by: Aaro Koskinen 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12830/
Signed-off-by: Ralf Baechle

MIPS: zboot: Add support for serial debug using the PROM

2016-01-24T03:05:51+00:00

As most platforms implement the PROM serial interface prom_putchar()
add a simple bridge to allow re-using this code for zboot.

Signed-off-by: Alban Bedel 
Cc: Alex Smith 
Cc: Andrew Bresticker 
Cc: Wu Zhangjin 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11811/
Signed-off-by: Ralf Baechle

MIPS: zboot: Avoid useless rebuilds

2016-01-24T03:05:03+00:00

Add dummy.o to the targets list, and fill targets automatically from
$(vmlinuzobjs) to avoid having to maintain two lists.

When building with XZ compression copy ashldi3.c to the build
directory to use a different object file for the kernel and zboot.
Without this the same object file need to be build with different
flags which cause a rebuild at every run.

Signed-off-by: Alban Bedel 
Cc: linux-mips@linux-mips.org
Cc: Alex Smith 
Cc: Wu Zhangjin 
Cc: Andrew Bresticker 
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11810/
Signed-off-by: Ralf Baechle