Makefile: Add target for building bootable SPL image for SoCFPGA
Add build target for generating boot partition images recognised by
the SoCFPGA BootROM. The SoCFPGA BootROM expects four copies of the
u-boot-spl-dtb.sfp at the beginning of boot partition. Those are
u-boot-spl-dtb.bin augmented by a header with which the BootROM can
work. The u-boot-dtb.img uImage is appended to this to produce a
full boot partition image, the u-boot-with-spl-dtb.sfp . This is
the name of the final target.
Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/Makefile b/Makefile
index 469c770..ad51e60 100644
--- a/Makefile
+++ b/Makefile
@@ -1020,6 +1020,15 @@
$(call if_changed,mkimage)
@dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@
+ifneq ($(CONFIG_ARCH_SOCFPGA),)
+quiet_cmd_socboot = SOCBOOT $@
+cmd_socboot = cat spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp \
+ spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp \
+ u-boot-dtb.img > $@ || rm -f $@
+u-boot-with-spl-dtb.sfp: spl/u-boot-spl-dtb.sfp u-boot-dtb.img FORCE
+ $(call if_changed,socboot)
+endif
+
# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
# the middle.
@@ -1298,6 +1307,9 @@
spl/sunxi-spl.bin: spl/u-boot-spl
@:
+spl/u-boot-spl-dtb.sfp: spl/u-boot-spl
+ @:
+
tpl/u-boot-tpl.bin: tools prepare
$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 4879d0a..239ee48 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -163,6 +163,10 @@
ALL-y += $(obj)/$(BOARD)-spl.bin
endif
+ifdef CONFIG_ARCH_SOCFPGA
+ALL-y += $(obj)/$(SPL_BIN)-dtb.sfp
+endif
+
ifdef CONFIG_SUNXI
ALL-y += $(obj)/sunxi-spl.bin
endif
@@ -231,6 +235,12 @@
LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
endif
+ifdef CONFIG_ARCH_SOCFPGA
+MKIMAGEFLAGS_$(SPL_BIN)-dtb.sfp = -T socfpgaimage
+$(obj)/$(SPL_BIN)-dtb.sfp: $(obj)/$(SPL_BIN)-dtb.bin FORCE
+ $(call if_changed,mkimage)
+endif
+
ifdef CONFIG_SUNXI
quiet_cmd_mksunxiboot = MKSUNXI $@
cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@