Payloads: Add U-Boot as a coreboot-payload
- Add Kconfig and Makefile options to use U-Boot as a payload.
- Add Kconfig option for extra cbfstool command line arguments.
- Add Kconfig & Makefile option to load the payload as a flat binary.
- Add u-boot directory to .gitignore.
This is currently working for X-86 only.
Graphics worked in U-Boot correctly by initializing the VBIOS and
setting up a console mode.
Tested in QEMU and on Minnowboard Max. Got into U-Boot, have not
booted an OS yet.
Change-Id: Ia122a4ad7cd7d96107c1552b0376c8106ca8fb92
Signed-off-by: Martin Roth <martinroth@google.com>
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/12714
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/payloads/external/U-Boot/Kconfig b/payloads/external/U-Boot/Kconfig
new file mode 100644
index 0000000..2afe1cd
--- /dev/null
+++ b/payloads/external/U-Boot/Kconfig
@@ -0,0 +1,40 @@
+if PAYLOAD_UBOOT
+
+config PAYLOAD_SPECIFIC_OPTIONS # dummy
+ def_bool y
+ select PAYLOAD_IS_FLAT_BINARY
+
+choice
+ prompt "U-Boot version"
+ default UBOOT_STABLE
+
+config UBOOT_STABLE
+ bool "v2016.1"
+ help
+ Stable U-Boot version
+
+config UBOOT_MASTER
+ bool "master"
+ help
+ Newest U-Boot version
+
+endchoice
+
+config PAYLOAD_CONFIGFILE
+ string "U-Boot config file"
+ default ""
+ help
+ This option allows a platform to set Kconfig options for a basic
+ U-Boot payload. In general, if the option is used, the default
+ would be "$(top)/src/mainboard/$(MAINBOARDDIR)/config_uboot"
+ for a config stored in the coreboot mainboard directory, or
+ "$(project_dir)/configs/coreboot-x86_defconfig" to use a config
+ from the U-Boot config directory
+
+config PAYLOAD_FILE
+ default "payloads/external/U-Boot/u-boot/u-boot-dtb.bin"
+
+config PAYLOAD_OPTIONS
+ default "-l 0x1110000 -e 0x1110015"
+
+endif