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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-06-14 13:16:25 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2019-07-04 19:06:38 +0300
commit264bffad4d08f967ab3d6690bb15757a526b186a (patch)
tree1a0b286d3ee8847238308bcae19d9274ba94bfb6
parent1cc9a21b0bb36debdf96dbcc4b139d6639373018 (diff)
downloadlinux-264bffad4d08f967ab3d6690bb15757a526b186a.tar.xz
powerpc/boot: Add lzo support for uImage
This patch allows to generate lzo compressed uImage Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/powerpc/boot/Makefile2
-rwxr-xr-xarch/powerpc/boot/wrapper5
3 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 016bd351e5fe..12cee37f15c4 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -199,6 +199,7 @@ config PPC
select HAVE_IRQ_EXIT_ON_IRQ_STACK
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZMA if DEFAULT_UIMAGE
+ select HAVE_KERNEL_LZO if DEFAULT_UIMAGE
select HAVE_KERNEL_XZ if PPC_BOOK3S || 44x
select HAVE_KPROBES
select HAVE_KPROBES_ON_FTRACE
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 9b7b11a22925..36fb51a9329f 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -23,6 +23,7 @@ all: $(obj)/zImage
compress-$(CONFIG_KERNEL_GZIP) := CONFIG_KERNEL_GZIP
compress-$(CONFIG_KERNEL_XZ) := CONFIG_KERNEL_XZ
compress-$(CONFIG_KERNEL_LZMA) := CONFIG_KERNEL_LZMA
+compress-$(CONFIG_KERNEL_LZO) := CONFIG_KERNEL_LZO
ifdef CROSS32_COMPILE
BOOTCC := $(CROSS32_COMPILE)gcc
@@ -259,6 +260,7 @@ endif
compressor-$(CONFIG_KERNEL_GZIP) := gz
compressor-$(CONFIG_KERNEL_XZ) := xz
compressor-$(CONFIG_KERNEL_LZMA) := lzma
+compressor-$(CONFIG_KERNEL_LZO) := lzo
# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
quiet_cmd_wrap = WRAP $@
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 51dc42f5acbc..4ed18d63d892 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -137,7 +137,7 @@ while [ "$#" -gt 0 ]; do
-Z)
shift
[ "$#" -gt 0 ] || usage
- [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "none" ] || usage
+ [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "lzo" -o "$1" != "none" ] || usage
compression=".$1"
uboot_comp=$1
@@ -377,6 +377,9 @@ if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel
.lzma)
xz --format=lzma -f -6 "$vmz.$$"
;;
+ .lzo)
+ lzop -f -9 "$vmz.$$"
+ ;;
*)
# drop the compression suffix so the stripped vmlinux is used
compression=