brcm47xx: image: build alternative TRX using less optimized LZMA

[openwrt/staging/chunkeey.git] / target / linux / brcm47xx / image / Makefile

diff --git a/target/linux/brcm47xx/image/Makefile b/target/linux/brcm47xx/image/Makefile
index 584bb6cac6a21e28d3146118b9feee226d0ee9fb..d19a13ee60ca9184eaed22663015df447684a50f 100644 (file)
--- a/target/linux/brcm47xx/image/Makefile
+++ b/target/linux/brcm47xx/image/Makefile
@@ -12,7 +12,12 @@ define Build/Clean
 endef
 
 define Image/Prepare
+       # Optimized LZMA compression (with dictionary), handled by lzma-loader.
        cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+
+       # Less optimal LZMA compression (no dictionary), handled by CFE.
+       $(STAGING_DIR_HOST)/bin/lzma e -so -d16 $(KDIR)/vmlinux > $(KDIR)/vmlinux-nodictionary.lzma
+
        gzip -nc9 $(KDIR)/vmlinux > $(KDIR)/vmlinux.gz
 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
        cat $(KDIR)/vmlinux-initramfs | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux-initramfs.lzma
@@ -230,6 +235,9 @@ define Image/Build
        $(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1).trx \
                -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma \
                $(call trxalign/$(1),$(1))
+       $(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1)-noloader-nodictionary.trx \
+               -f $(KDIR)/vmlinux-nodictionary.lzma \
+               $(call trxalign/$(1),$(1))
        $(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/$(IMG_PREFIX)-$(1)-gz.trx \
                -f $(KDIR)/vmlinux.gz \
                $(call trxalign/$(1),$(1))