8 files changed, 54 insertions, 8 deletions
diff --git a/src/arch/arm/Makefile.inc b/src/arch/arm/Makefile.inc
index 013a4dda75..06adfe454a 100644
--- a/src/arch/arm/Makefile.inc
+++ b/src/arch/arm/Makefile.inc
@@ -44,22 +44,35 @@ endif # CONFIG_ARCH_ARM
 
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARM),y)
 
+decompressor-y += id.S
 bootblock-y += id.S
+$(call src-to-obj,decompressor,$(dir)/id.S): $(obj)/build.h
 $(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h
 
+decompressor-y += boot.c
 bootblock-y += boot.c
-bootblock-y += stages.c
+decompressor-y += div0.c
+bootblock-y += div0.c
+decompressor-y += eabi_compat.c
 bootblock-y += eabi_compat.c
+decompressor-y += memset.S
 bootblock-y += memset.S
+decompressor-y += memcpy.S
 bootblock-y += memcpy.S
+decompressor-y += memmove.S
 bootblock-y += memmove.S
-bootblock-y += div0.c
+
 bootblock-y += clock.c
+bootblock-y += stages.c
 
 $(objcbfs)/bootblock.debug: $$(bootblock-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) -T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group
 
+$(objcbfs)/decompressor.debug: $$(decompressor-objs)
+	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
+	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) -T $(call src-to-obj,decompressor,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(decompressor-objs)) --end-group
+
 endif # CONFIG_ARCH_BOOTBLOCK_ARM
 
 ###############################################################################
diff --git a/src/arch/arm/armv7/Makefile.inc b/src/arch/arm/armv7/Makefile.inc
index fe0b446623..1d3ae52f54 100644
--- a/src/arch/arm/armv7/Makefile.inc
+++ b/src/arch/arm/armv7/Makefile.inc
@@ -28,18 +28,27 @@ armv7-r_asm_flags = $(armv7-r_flags) $(armv7_asm_flags)
 ###############################################################################
 
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV7),y)
+decompressor-generic-ccopts += $(armv7-a_flags)
+decompressor-S-ccopts += $(armv7_asm_flags)
 bootblock-generic-ccopts += $(armv7-a_flags)
 bootblock-S-ccopts += $(armv7_asm_flags)
 
 ifneq ($(CONFIG_BOOTBLOCK_CUSTOM),y)
+decompressor-y += bootblock.S
+ifneq ($(CONFIG_COMPRESS_BOOTBLOCK),y)
 bootblock-y += bootblock.S
 endif
+endif
 
+decompressor-y += cache.c
 bootblock-y += cache.c
+decompressor-y += cpu.S
 bootblock-y += cpu.S
+decompressor-y += mmu.c
+bootblock-y += mmu.c
+
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += exception.c
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += exception_asm.S
-bootblock-y += mmu.c
 
 else ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV7_M),y)
 bootblock-generic-ccopts += $(armv7-m_flags)
diff --git a/src/arch/arm/include/arch/header.ld b/src/arch/arm/include/arch/header.ld
index 8a107783d4..89473109f0 100644
--- a/src/arch/arm/include/arch/header.ld
+++ b/src/arch/arm/include/arch/header.ld
@@ -13,6 +13,8 @@
  * GNU General Public License for more details.
  */
 
+#include <rules.h>
+
 /* We use ELF as output format. So that we can debug the code in some form. */
 OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
@@ -22,7 +24,7 @@ PHDRS
 	to_load PT_LOAD;
 }
 
-#ifdef __BOOTBLOCK__
+#if ENV_DECOMPRESSOR || ENV_BOOTBLOCK || ENV_RMODULE
 ENTRY(_start)
 #else
 ENTRY(stage_entry)
diff --git a/src/arch/arm/libgcc/Makefile.inc b/src/arch/arm/libgcc/Makefile.inc
index cb91107e8e..9a8d4fca53 100644
--- a/src/arch/arm/libgcc/Makefile.inc
+++ b/src/arch/arm/libgcc/Makefile.inc
@@ -19,6 +19,7 @@ libgcc_files = ashldi3.S lib1funcs.S lshrdi3.S muldi3.S ucmpdi2.S uldivmod.S
 libgcc_files += udivmoddi4.c umoddi3.c
 
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARM),y)
+decompressor-y += $(libgcc_files)
 bootblock-y += $(libgcc_files)
 endif
 
diff --git a/src/arch/arm64/Makefile.inc b/src/arch/arm64/Makefile.inc
index 997c2da70f..f57ef720b9 100644
--- a/src/arch/arm64/Makefile.inc
+++ b/src/arch/arm64/Makefile.inc
@@ -39,17 +39,25 @@ endif
 
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARM64),y)
 
+decompressor-y += boot.c
+bootblock-y += boot.c
+decompressor-y += div0.c
 bootblock-y += div0.c
+decompressor-y += eabi_compat.c
+bootblock-y += eabi_compat.c
+decompressor-y += id.S
 bootblock-y += id.S
+$(call src-to-obj,decompressor,$(dir)/id.S): $(obj)/build.h
 $(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h
 
-bootblock-y += boot.c
-bootblock-y += eabi_compat.c
 bootblock-$(CONFIG_ARM64_USE_ARCH_TIMER) += arch_timer.c
 bootblock-y += transition.c transition_asm.S
 
+decompressor-y += memset.S
 bootblock-y += memset.S
+decompressor-y += memcpy.S
 bootblock-y += memcpy.S
+decompressor-y += memmove.S
 bootblock-y += memmove.S
 
 # Build the bootblock
@@ -58,6 +66,10 @@ $(objcbfs)/bootblock.debug: $$(bootblock-objs) $(obj)/config.h
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group -T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld)
 
+$(objcbfs)/decompressor.debug: $$(decompressor-objs) $(obj)/config.h
+	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
+	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(decompressor-objs)) --end-group -T $(call src-to-obj,decompressor,src/mainboard/$(MAINBOARDDIR)/memlayout.ld)
+
 endif # CONFIG_ARCH_BOOTBLOCK_ARM64
 
 ###############################################################################
diff --git a/src/arch/arm64/armv8/Makefile.inc b/src/arch/arm64/armv8/Makefile.inc
index 14a784bb92..db7bd33793 100644
--- a/src/arch/arm64/armv8/Makefile.inc
+++ b/src/arch/arm64/armv8/Makefile.inc
@@ -31,19 +31,27 @@ armv8_flags = -march=$(march) -I$(src)/arch/arm64/include/armv8/ -D__COREBOOT_AR
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV8_64),y)
 
 ifneq ($(CONFIG_BOOTBLOCK_CUSTOM),y)
+decompressor-y += bootblock.S
+ifneq ($(CONFIG_COMPRESS_BOOTBLOCK),y)
 bootblock-y += bootblock.S
 endif
-bootblock-y += cache.c
+endif
+decompressor-y += cpu.S
 bootblock-y += cpu.S
+decompressor-y += cache.c
+bootblock-y += cache.c
+decompressor-y += mmu.c
 bootblock-y += mmu.c
 
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += exception.c
 
+decompressor-generic-ccopts += $(armv8_flags)
 bootblock-generic-ccopts += $(armv8_flags)
 
 # Required to access unaligned timestamp struct members before MMU is active
 # (TODO: Maybe use explicit unaligned accesses in timestamp code instead, or
 # evaluate redesigning timestamp data structures to avoid misaligned members.)
+decompressor-c-ccopts += -mstrict-align
 bootblock-c-ccopts += -mstrict-align
 
 endif
diff --git a/src/arch/arm64/armv8/lib/Makefile.inc b/src/arch/arm64/armv8/lib/Makefile.inc
index 2bf1a37c7a..bfc87c38d7 100644
--- a/src/arch/arm64/armv8/lib/Makefile.inc
+++ b/src/arch/arm64/armv8/lib/Makefile.inc
@@ -18,6 +18,7 @@
 lib_access = pstate.c sysctrl.c cache.c tlb.c clock.c
 
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV8_64),y)
+decompressor-y += $(lib_access)
 bootblock-y += $(lib_access)
 endif
 
diff --git a/src/arch/arm64/include/arch/header.ld b/src/arch/arm64/include/arch/header.ld
index c82cb3f8c7..9d8764ea58 100644
--- a/src/arch/arm64/include/arch/header.ld
+++ b/src/arch/arm64/include/arch/header.ld
@@ -24,7 +24,7 @@ PHDRS
 	to_load PT_LOAD;
 }
 
-#if ENV_BOOTBLOCK ||  ENV_RMODULE
+#if ENV_DECOMPRESSOR || ENV_BOOTBLOCK || ENV_RMODULE
 ENTRY(_start)
 #else
 ENTRY(stage_entry)