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kernel: add lzma support for arm cpu.

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This patch appears to be lost beetween 2.6.32 and 2.6.33.

Thank you Maddes for the patch.

This helps making orion work with kernel 2.6.33.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21552 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
hauke 2010-05-23 17:44:32 +00:00
parent a325f45fb4
commit b2f27cf294
1 changed files with 57 additions and 0 deletions
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57
target/linux/generic-2.6/patches-2.6.33/055-lzma_arm_kernel.patch Normal file
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@ -0,0 +1,57 @@
From d0f226a0f104c7d1da1d215b8013359273e39e18 Mon Sep 17 00:00:00 2001
From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Date: Fri, 16 Oct 2009 16:17:22 +0200
Subject: [PATCH] Add LZMA decompression on ARM
Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
---
arch/arm/Kconfig | 1 +
arch/arm/boot/compressed/Makefile | 1 +
arch/arm/boot/compressed/misc.c | 4 ++++
arch/arm/boot/compressed/piggy.lzma.S | 6 ++++++
4 files changed, 12 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/boot/compressed/piggy.lzma.S
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -20,6 +20,7 @@ config ARM
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZO
+ select HAVE_KERNEL_LZMA
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -65,6 +65,7 @@ SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/
suffix_$(CONFIG_KERNEL_GZIP) = gzip
suffix_$(CONFIG_KERNEL_LZO) = lzo
+suffix_$(CONFIG_KERNEL_LZMA) = lzma
targets := vmlinux vmlinux.lds \
piggy.$(suffix_y) piggy.$(suffix_y).o \
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -248,6 +248,10 @@ static unsigned long free_mem_end_ptr;
#include "../../../../lib/decompress_inflate.c"
#endif
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
#ifdef CONFIG_KERNEL_LZO
#include "../../../../lib/decompress_unlzo.c"
#endif
--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.lzma.S
@@ -0,0 +1,6 @@
+ .section .piggydata,#alloc
+ .globl input_data
+input_data:
+ .incbin "arch/arm/boot/compressed/piggy.lzma"
+ .globl input_data_end
+input_data_end: