arm: mxs: Add support for generating signed BootStream

[karo-tx-uboot.git] / arch / arm / cpu / arm926ejs / mxs / Makefile

diff --git a/arch/arm/cpu/arm926ejs/mxs/Makefile b/arch/arm/cpu/arm926ejs/mxs/Makefile
index 152546eb417a321031559c809b5827827026f9ca..540e58955276c9a91bb0d78960e88c829db4fc40 100644 (file)
--- a/arch/arm/cpu/arm926ejs/mxs/Makefile
+++ b/arch/arm/cpu/arm926ejs/mxs/Makefile
@@ -17,8 +17,85 @@ endif
 MKIMAGE_TARGET-$(CONFIG_MX23) = mx23
 MKIMAGE_TARGET-$(CONFIG_MX28) = mx28
 
+# Convert hexadecimal value to bytes
+define hex2bin
+$(shell echo -n "$1" | sed 's/0x//;s/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/;s/../\\\\x&/g')
+endef
+
+# Compute the post-IVT size field value for the U-Boot binary.
+# The value is the result of adding the following:
+#  -> The size of U-Boot binary aligned to 64B (u-boot.bin)
+#  -> The size of IVT block aligned to 64B (u-boot.ivt)
+#  -> The size of U-Boot signature (u-boot.sig), 3904 B
+#  -> The 64B hole in front of U-Boot binary for 'struct mxs_spl_data' passing
+define uboot_ivt_size
+$(shell expr `stat -c "%s" $1` + 64 + 3904 + 128 | xargs printf 0x%08x)
+endef
+
 $(OBJTREE)/mxsimage.cfg: $(SRCTREE)/$(CPUDIR)/$(SOC)/mxsimage.$(MKIMAGE_TARGET-y).cfg
        sed "s@OBJTREE@$(OBJTREE)@g" $^ > $@
 
+# HAB signature is i.MX28 only
+$(OBJTREE)/mxsimage-signed.cfg: $(SRCTREE)/$(CPUDIR)/$(SOC)/mxsimage-signed.cfg
+       sed "s@OBJTREE@$(OBJTREE)@g" $^ > $@
+
+$(OBJTREE)/spl/u-boot-spl.ivt: $(OBJTREE)/spl/u-boot-spl.bin
+       # Align U-Boot SPL binary to 64B
+       dd if=$^ of=$@ ibs=64 conv=sync 2>/dev/null
+       mv $@ $^
+       # Assemble IVT, append size field and align it to 64B.
+       (echo -ne "$(call hex2bin,0x402000d1)" ;                \
+        echo -ne "$(call hex2bin,$(CONFIG_SPL_TEXT_BASE))" ;   \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,0x00008000)" ;                \
+        echo -ne "$(call hex2bin,0x00008040)" ;                \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,$(call uboot_ivt_size,$^))"   \
+       ) | dd of=$@ ibs=64 count=1 conv=sync 2>/dev/null
+
+$(OBJTREE)/u-boot.ivt: $(OBJTREE)/u-boot.bin
+       # Align U-Boot binary to 64B
+       dd if=$^ of=$@ ibs=64 conv=sync 2>/dev/null
+       mv $@ $^
+       # Assemble IVT, append size field and align it to 64B.
+       (echo -ne "$(call hex2bin,0x402000d1)" ;                \
+        echo -ne "$(call hex2bin,$(CONFIG_SYS_TEXT_BASE))" ;   \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,0x40001000)" ;                \
+        echo -ne "$(call hex2bin,0x40001040)" ;                \
+        echo -ne "$(call hex2bin,0x00000000)" ;                \
+        echo -ne "$(call hex2bin,$(call uboot_ivt_size,$^))"   \
+       ) | dd of=$@ ibs=64 count=1 conv=sync 2>/dev/null
+
+$(OBJTREE)/spl/u-boot-spl.csf: $(OBJTREE)/spl/u-boot-spl.ivt $(OBJTREE)/spl/u-boot-spl.bin $(TOPDIR)/board/$(VENDOR)/$(BOARD)/sign/u-boot-spl.csf
+       # Assemble the CSF file
+       sed "s@TOPDIR@$(TOPDIR)@g;s@VENDOR@$(VENDOR)@g;s@BOARD@$(BOARD)@g" \
+               $(word 3,$^) > $@
+       sed -i "/^##Blocks.*/ d" $@
+       echo "  Blocks = $(CONFIG_SPL_TEXT_BASE) 0x0 "                  \
+               "`stat -c '%s' $(word 2,$^)` \"$(word 2,$^)\" , \\"     \
+               >> $@
+       echo "           0x8000 0x0 0x40 \"$(word 1,$^)\"" >> $@
+
+$(OBJTREE)/u-boot.csf: $(OBJTREE)/u-boot.ivt $(OBJTREE)/u-boot.bin $(TOPDIR)/board/$(VENDOR)/$(BOARD)/sign/u-boot.csf
+       # Assemble the CSF file
+       sed "s@TOPDIR@$(TOPDIR)@g;s@VENDOR@$(VENDOR)@g;s@BOARD@$(BOARD)@g" \
+               $(word 3,$^) > $@
+       sed -i "/^##Blocks.*/ d" $@
+       echo "  Blocks = $(CONFIG_SYS_TEXT_BASE) 0x0 "                  \
+               "`stat -c '%s' $(word 2,$^)` \"$(word 2,$^)\" , \\"     \
+               >> $@
+       echo "           0x40001000 0x0 0x40 \"$(word 1,$^)\"" >> $@
+
+%.sig: %.csf
+       cst -o $@ < $^
+
+$(OBJTREE)/u-boot-signed.sb: $(OBJTREE)/u-boot.ivt $(OBJTREE)/u-boot.sig $(OBJTREE)/spl/u-boot-spl.ivt $(OBJTREE)/spl/u-boot-spl.sig $(OBJTREE)/mxsimage-signed.cfg
+       $(OBJTREE)/tools/mkimage -n $(OBJTREE)/mxsimage-signed.cfg -T mxsimage $@
+
 $(OBJTREE)/u-boot.sb: $(OBJTREE)/u-boot.bin $(OBJTREE)/spl/u-boot-spl.bin $(OBJTREE)/mxsimage.cfg
        $(OBJTREE)/tools/mkimage -n $(OBJTREE)/mxsimage.cfg -T mxsimage $@