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| author | John Crispin <john@openwrt.org> | 2014-10-20 06:29:44 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2014-10-20 06:29:44 +0000 |
| commit | 182d63bc40be871fd3df65f4fe5d6240a88ea684 (patch) | |
| tree | 85286771bf6769d9042b65f073728f106dea79cc | |
| parent | 6e1637f8fab37ef233ee43ade761cb4e4962ab9a (diff) | |
| download | upstream-182d63bc40be871fd3df65f4fe5d6240a88ea684.tar.gz upstream-182d63bc40be871fd3df65f4fe5d6240a88ea684.tar.bz2 upstream-182d63bc40be871fd3df65f4fe5d6240a88ea684.zip | |
ar71xx: add comments for Image/BuildLoader{, Alone}.
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
SVN-Revision: 42990
| -rw-r--r-- | target/linux/ar71xx/image/Makefile | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/ar71xx/image/Makefile b/target/linux/ar71xx/image/Makefile index 78e2d705ce..a382f3a54b 100644 --- a/target/linux/ar71xx/image/Makefile +++ b/target/linux/ar71xx/image/Makefile @@ -215,6 +215,14 @@ define ubinize ( cd $(2); $(STAGING_DIR_HOST)/bin/ubinize -o $(3) -p $(4) -m $(5) $(6) $(1)) endef +# +# Embed lzma-compressed kernel inside lzma-loader. +# +# $(1), suffix of output filename, e.g. generic, lowercase board name, etc. +# $(2), suffix of target file to build, e.g. bin, gz, elf +# $(3), kernel command line to pass from lzma-loader to kernel +# $(4), unused here +# $(5), suffix of kernel filename, e.g. -initramfs, or empty define Image/BuildLoader -rm -rf $(KDIR)/lzma-loader $(LOADER_MAKE) LOADER=loader-$(1).$(2) KERNEL_CMDLINE="$(3)"\ @@ -224,6 +232,13 @@ define Image/BuildLoader -$(CP) $(KDIR)/loader-$(1).$(2) $(KDIR)/loader-$(1)$(5).$(2) endef +# +# Build lzma-loader alone which will search for lzma-compressed kernel identified by +# uImage header with magic "OKLI" at boot time. +# +# $(4), offset into the flash space to start searching uImage magic "OKLI". +# $(5), size of search range starting at $(4). With 0 as the value, uImage +# header is expected to be at precisely $(4) define Image/BuildLoaderAlone -rm -rf $(KDIR)/lzma-loader $(LOADER_MAKE) LOADER=loader-$(1).$(2) KERNEL_CMDLINE="$(3)" \ @@ -1015,6 +1030,8 @@ define Image/Build/Zcomax endef +# $(1): template name to be defined, etc. squashfs-only, 64k, 64kraw, etc. +# $(2): jffs2 blocksize. define Jffs2Template define Image/Build/Template/$(1)/jffs2-$(2) $$(call Image/Build/$$(1),jffs2-$(2),$$(2),$$(3),$$(4),$$(5),$$(6),$$(7),$$(8),$$(9),$$(10)) |