[RESEND PATCH v1 5/5] Makefile: Add provision for embedding public key in platform's dtb

[Sughosh Ganu]

Add provision for embedding the public key used for capsule
authentication in the platform's dtb. This is done by invoking the
mkeficapsule utility which puts the public key in the efi signature
list(esl) format into the dtb.

Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
---
 Makefile | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Makefile b/Makefile
index 193aa4d1c9..0d50c6a805 100644
--- a/Makefile
+++ b/Makefile
@@ -1010,6 +1010,10 @@ cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
 quiet_cmd_lzma = LZMA    $@
 cmd_lzma = lzma -c -z -k -9 $< > $@
 
+quiet_cmd_mkeficapsule = MKEFICAPSULE     $@
+cmd_mkeficapsule = $(objtree)/tools/mkeficapsule -K $(CONFIG_EFI_PKEY_FILE) \
+	-D $@
+
 cfg: u-boot.cfg
 
 quiet_cmd_cfgcheck = CFGCHK  $2
@@ -1104,8 +1108,14 @@ endif
 PHONY += dtbs
 dtbs: dts/dt.dtb
 	@:
+ifeq ($(CONFIG_EFI_CAPSULE_AUTHENTICATE)$(CONFIG_EFI_PKEY_DTB_EMBED),yy)
+dts/dt.dtb: u-boot tools
+	$(Q)$(MAKE) $(build)=dts dtbs
+	$(call cmd,mkeficapsule)
+else
 dts/dt.dtb: u-boot
 	$(Q)$(MAKE) $(build)=dts dtbs
+endif
 
 quiet_cmd_copy = COPY    $@
       cmd_copy = cp $< $@
-- 
2.17.1