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brcm47xx: image: build alternative TRX using less optimized LZMA 

There is a group of devices that lzma-loader doesn't work with. They
simply hang at "Starting program at 0x80001000" which is really hard to
debug and we didn't find any solution for this for years.

Broadcom doesn't use lzma-loader on these devices anyway. They decided
to drop lzma-loader and use less optimal LZMA compression that can be
handled by CFE itself (it doesn't use dictionary).

So support these devices we will need kernel compressed with different
parameters and trx without a loader.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

Backport of r42205

git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42371 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
blogic 2014-09-01 13:21:42 +00:00
parent d9f1656851
commit 045eb62852
1 changed files with 8 additions and 0 deletions
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8
target/linux/brcm47xx/image/Makefile
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@ -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))