[PATCH 4/4] sunxi: Support building a SPL as a TOC0 image

[Samuel Holland]

Now that mkimage can generate TOC0 images, and the SPL can interpret
them, hook up the build infrastructure so the user can choose which
image type to build.

Signed-off-by: Samuel Holland <samuel at sholland.org>
---
 arch/arm/mach-sunxi/Kconfig |  2 ++
 board/sunxi/Kconfig         | 24 ++++++++++++++++++++++++
 scripts/Makefile.spl        |  3 ++-
 3 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 board/sunxi/Kconfig

diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index bc8509b72a2..4c466325f3a 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1088,6 +1088,8 @@ config BLUETOOTH_DT_DEVICE_FIXUP
 	  The used address is "bdaddr" if set, and "ethaddr" with the LSB
 	  flipped elsewise.
 
+source "board/sunxi/Kconfig"
+
 endif
 
 config CHIP_DIP_SCAN
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
new file mode 100644
index 00000000000..c5c0929db52
--- /dev/null
+++ b/board/sunxi/Kconfig
@@ -0,0 +1,24 @@
+choice
+	prompt "SPL Image Type"
+	default SUNXI_SPL_IMAGE_EGON
+
+config SUNXI_SPL_IMAGE_EGON
+	bool "eGON (non-secure)"
+	help
+	  Select this option to embed the SPL binary in an eGON.BT0 image,
+	  which is compatible with the non-secure boot ROM (NBROM).
+
+	  This is usually the correct option to choose.
+
+config SUNXI_SPL_IMAGE_TOC0
+	bool "TOC0 (secure)"
+	help
+	  Select this option to embed the SPL binary in a TOC0 image,
+	  which is compatible with the secure boot ROM (SBROM).
+
+endchoice
+
+config SUNXI_SPL_IMAGE_TYPE
+	string
+	default "sunxi_egon" if SUNXI_SPL_IMAGE_EGON
+	default "sunxi_toc0" if SUNXI_SPL_IMAGE_TOC0
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 5be1a9ba1b1..7cc78bb3186 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -414,7 +414,8 @@ endif
 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 	$(call if_changed,mkimage)
 
-MKIMAGEFLAGS_sunxi-spl.bin = -T sunxi_egon \
+MKIMAGEFLAGS_sunxi-spl.bin = -T $(CONFIG_SUNXI_SPL_IMAGE_TYPE) \
+	-a $(CONFIG_SPL_TEXT_BASE) \
 	-n $(CONFIG_DEFAULT_DEVICE_TREE)
 
 OBJCOPYFLAGS_u-boot-spl-dtb.hex := -I binary -O ihex --change-address=$(CONFIG_SPL_TEXT_BASE)
-- 
2.31.1