brcm63xx: allow lzma to use 32MB RAM

Most 16 MiB RAM devices don't even load elf kernels, so it's safe to
assume we have at least 32 MB RAM. This fixes tftp booting with the
default package set as this already produces an uncompressed
kernel > 8 MiB.

New limit is 8 MiB compressed / 24 MiB compressed.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44558 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/brcm63xx/image/Makefile

@@ -7,15 +7,17 @@
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk
 
-LOADADDR = 0x80010000		# RAM start + 16M 
+LOADADDR = 0x80010000		# RAM start + 64K
 KERNEL_ENTRY = $(LOADADDR)	# Newer kernels add a jmp to the kernel_entry at the start of the binary
-RAMSIZE = 0x01000000		# 64MB
+RAMSIZE = 0x02000000		# 32MB
+LZMA_TEXT_START = 0x81800000	# 32MB - 8MB
 
 LOADER_MAKEOPTS= \
 		KDIR=$(KDIR) \
 		LOADADDR=$(LOADADDR) \
 		KERNEL_ENTRY=$(KERNEL_ENTRY) \
-		RAMSIZE=$(RAMSIZE)
+		RAMSIZE=$(RAMSIZE) \
+		LZMA_TEXT_START=$(LZMA_TEXT_START) \
 
 define rootfspad/jffs2-128k
 --align-rootfs
@@ -124,7 +126,6 @@ define Image/PrepareLoader
 		TARGET_DIR="$(BIN_DIR)" \
 		LOADER_DATA="$(KDIR)/vmlinux$(1).lzma" \
 		LOADER=$(IMG_PREFIX)-loader$(1).elf \
-		LZMA_TEXT_START=0x80a00000 \
 		compile loader.elf
 
 	rm -f $(KDIR)/vmlinux$(1).lzma