Commit 31c4867d authored by Florian Fainelli's avatar Florian Fainelli Committed by Ralf Baechle

MIPS: ZBOOT: Support LZ4 compression scheme

Add support for the LZ4 compression scheme in the ZBOOT decompression
stub, in order to support it we need to:

- select the "lz4" compression tool to compress the vmlinux.bin
  payload
- memcpy() is also required for decompress_unlz4.c so we share the
  implementation between GZIP, XZ and now LZ4
Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5829/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent e970a72e
......@@ -1489,6 +1489,7 @@ config SYS_SUPPORTS_ZBOOT
bool
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_LZ4
select HAVE_KERNEL_LZMA
select HAVE_KERNEL_LZO
select HAVE_KERNEL_XZ
......
......@@ -48,6 +48,7 @@ $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
tool_$(CONFIG_KERNEL_GZIP) = gzip
tool_$(CONFIG_KERNEL_BZIP2) = bzip2
tool_$(CONFIG_KERNEL_LZ4) = lz4
tool_$(CONFIG_KERNEL_LZMA) = lzma
tool_$(CONFIG_KERNEL_LZO) = lzo
tool_$(CONFIG_KERNEL_XZ) = xzkern
......
......@@ -43,7 +43,8 @@ void error(char *x)
/* activate the code for pre-boot environment */
#define STATIC static
#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_XZ)
#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_XZ) || \
defined(CONFIG_KERNEL_LZ4)
void *memcpy(void *dest, const void *src, size_t n)
{
int i;
......@@ -72,6 +73,10 @@ void *memset(void *s, int c, size_t n)
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZ4
#include "../../../../lib/decompress_unlz4.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
......
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