In preparation for splitting arch/mips/generic/vmlinux.its.S into
multiple files such that it doesn't become a conflict magnet as boards
are added, allow platforms to specify a list of image tree source files
which will be concatenated to form the final source used to build the
image tree.
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
---
arch/mips/Makefile | 3 ++-
arch/mips/boot/Makefile | 16 +++++++++++-----
arch/mips/generic/Platform | 2 ++
3 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 876394554274..8b7aefd859cd 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -277,7 +277,8 @@ KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
VMLINUX_ENTRY_ADDRESS=$(entry-y) \
- PLATFORM="$(platform-y)"
+ PLATFORM="$(platform-y)" \
+ ITS_INPUTS="$(its-y)"
ifdef CONFIG_32BIT
bootvars-y += ADDR_BITS=32
endif
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
index 145b5ce8eb7e..1bd5c4f00d19 100644
--- a/arch/mips/boot/Makefile
+++ b/arch/mips/boot/Makefile
@@ -118,6 +118,12 @@ ifeq ($(ADDR_BITS),64)
itb_addr_cells = 2
endif
+quiet_cmd_its_cat = CAT $@
+ cmd_its_cat = cat $^ >$@
+
+$(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS))
+ $(call if_changed,its_cat)
+
quiet_cmd_cpp_its_S = ITS $@
cmd_cpp_its_S = $(CPP) $(cpp_flags) -P -C -o $@ $< \
-DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
@@ -128,19 +134,19 @@ quiet_cmd_cpp_its_S = ITS $@
-DADDR_BITS=$(ADDR_BITS) \
-DADDR_CELLS=$(itb_addr_cells)
-$(obj)/vmlinux.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,none,vmlinux.bin)
-$(obj)/vmlinux.gz.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.gz.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,gzip,vmlinux.bin.gz)
-$(obj)/vmlinux.bz2.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.bz2.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,bzip2,vmlinux.bin.bz2)
-$(obj)/vmlinux.lzma.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.lzma.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,lzma,vmlinux.bin.lzma)
-$(obj)/vmlinux.lzo.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.lzo.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
$(call if_changed_dep,cpp_its_S,lzo,vmlinux.bin.lzo)
quiet_cmd_itb-image = ITB $@
diff --git a/arch/mips/generic/Platform b/arch/mips/generic/Platform
index 9a30d69e2281..6f7ce7b0c5e2 100644
--- a/arch/mips/generic/Platform
+++ b/arch/mips/generic/Platform
@@ -12,3 +12,5 @@ platform-$(CONFIG_MIPS_GENERIC) += generic/
cflags-$(CONFIG_MIPS_GENERIC) += -I$(srctree)/arch/mips/include/asm/mach-generic
load-$(CONFIG_MIPS_GENERIC) += 0xffffffff80100000
all-$(CONFIG_MIPS_GENERIC) := vmlinux.gz.itb
+
+its-y := vmlinux.its.S
--
2.14.0
