[U-Boot] [PATCH 3/7] fdt: Build an SPL binary without device tree

Simon Glass
2016-01-25T20:30:27Z

At present u-boot-spl.bin holds the plain SPL binary without the device
tree. This is somewhat annoying since you need either u-boot-spl.bin or
u-boot-spl-dtb.bin depending on whether device tree is used.

Adjust the build such that u-boot-spl.bin includes a device tree, and the
plain binary is in u-boot-spl-nodtb.bin. For now u-boot-spl-dtb.bin remains
the same.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

scripts/Makefile.spl | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 96f414a..7bf471a 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -131,14 +131,14 @@ boot.bin: $(obj)/u-boot-spl.bin
else
MKIMAGEFLAGS_boot.bin = -T zynqimage

-spl/boot.bin: $(obj)/u-boot-spl-dtb.bin
+spl/boot.bin: $(obj)/u-boot-spl.bin
$(call if_changed,mkimage)
endif

ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg

ifdef CONFIG_SPL_OF_CONTROL
-ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
+ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-nodtb.bin
endif

ifdef CONFIG_SAMSUNG
@@ -166,11 +166,19 @@ all: $(ALL-y)
quiet_cmd_cat = CAT $@
cmd_cat = cat $(filter-out $(PHONY), $^) > $@

-$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
+ifeq ($(CONFIG_SPL_OF_CONTROL),y)
+$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin \
$(obj)/$(SPL_BIN).dtb FORCE
$(call if_changed,cat)

-# Create a file that pads from the end of u-boot-spl.bin to bss_end
+$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
+ $(call if_changed,cat)
+else
+$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
+ $(call if_changed,cat)
+endif
+
+# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
@@ -211,9 +219,9 @@ endif
quiet_cmd_objcopy = OBJCOPY $@
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@

-OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
+OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary

-$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
+$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
$(call if_changed,objcopy)

LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
--
2.7.0.rc3.207.g0ac5344