boot/ti-k3-r5-loader: new package

This is a separate U-Boot package that allows to build the
intermediate SPL binary for the Cortex-R5 core on TI's k3
platforms. Usually, the resulting SPL will be used for k3-image-gen to
build the full R5 boot binary tiboot3.bin.

Signed-off-by: Xuanhao Shi <x-shi@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Reviewed-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Acked-by: Andrew Davis <afd@ti.com>
Tested-by: Bryan Brattlof <bb@ti.com>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Francois Perrad <francois.perrad@gadz.org>
Reviewed-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -128,6 +128,9 @@ F:	package/dcron/
 F:	package/libxmlrpc/
 F:	package/python-docopt/
 
+N:	Anand Gadiyar <gadiyar@ti.com>
+F:	boot/ti-k3-r5-loader/
+
 N:	André Zwing <nerv@dawncrow.de>
 F:	package/libkrb5/
 F:	package/openal/
@@ -3005,6 +3008,9 @@ F:	package/python-pyusb/
 N:	Wojciech Niziński <niziak@spox.org>
 F:	package/fwup/
 
+N:	Xuanhao Shi <X15000177@gmail.com>
+F:	boot/ti-k3-r5-loader/
+
 N:	Yair Ben Avraham <yairba@protonmail.com>
 F:	package/casync/
 F:	package/gloox/

boot/Config.in

@@ -22,6 +22,7 @@ source "boot/s500-bootloader/Config.in"
 source "boot/shim/Config.in"
 source "boot/sun20i-d1-spl/Config.in"
 source "boot/syslinux/Config.in"
+source "boot/ti-k3-r5-loader/Config.in"
 source "boot/uboot/Config.in"
 source "boot/vexpress-firmware/Config.in"
 

boot/ti-k3-r5-loader/Config.in

@@ -0,0 +1,35 @@
+config BR2_TARGET_TI_K3_R5_LOADER
+	bool "ti-k3-r5-loader"
+	depends on BR2_aarch64
+	help
+	  Separate U-Boot build for R5 cores on TI's k3 boards.
+	  Usually used to build tiboot3.bin with k3-image-gen.
+
+if BR2_TARGET_TI_K3_R5_LOADER
+
+choice
+	prompt "Configuration"
+	default BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG
+
+config BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG
+	bool "Using an in-tree board defconfig file"
+
+config BR2_TARGET_TI_K3_R5_LOADER_USE_CUSTOM_CONFIG
+	bool "Using a custom board (def)config file"
+
+endchoice
+
+config BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG
+	string "Board defconfig"
+	depends on BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG
+	help
+	  Name of the board for which TI K3 R5 Loader should be
+	  built, without the _defconfig suffix.
+
+config BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_CONFIG_FILE
+	string "Configuration file path"
+	depends on BR2_TARGET_TI_K3_R5_LOADER_USE_CUSTOM_CONFIG
+	help
+	  Path to the TI K3 R5 Loader configuration file.
+
+endif

boot/ti-k3-r5-loader/ti-k3-r5-loader.hash

@@ -0,0 +1,3 @@
+# Locally computed:
+sha256  50b4482a505bc281ba8470c399a3c26e145e29b23500bc35c50debd7fa46bdf8  u-boot-2022.10.tar.bz2
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  Licenses/gpl-2.0.txt

boot/ti-k3-r5-loader/ti-k3-r5-loader.mk

@@ -0,0 +1,49 @@
+################################################################################
+#
+# ti-k3-r5-loader
+#
+################################################################################
+
+TI_K3_R5_LOADER_VERSION = 2022.10
+TI_K3_R5_LOADER_SITE = https://ftp.denx.de/pub/u-boot
+TI_K3_R5_LOADER_SOURCE = u-boot-$(TI_K3_R5_LOADER_VERSION).tar.bz2
+TI_K3_R5_LOADER_LICENSE = GPL-2.0+
+TI_K3_R5_LOADER_LICENSE_FILES = Licenses/gpl-2.0.txt
+TI_K3_R5_LOADER_CPE_ID_VENDOR = denx
+TI_K3_R5_LOADER_CPE_ID_PRODUCT = u-boot
+TI_K3_R5_LOADER_INSTALL_IMAGES = YES
+TI_K3_R5_LOADER_DEPENDENCIES = \
+	host-pkgconf \
+	$(BR2_MAKE_HOST_DEPENDENCY) \
+	host-arm-gnu-toolchain \
+	host-openssl
+
+TI_K3_R5_LOADER_MAKE = $(BR2_MAKE)
+TI_K3_R5_LOADER_MAKE_ENV = $(TARGET_MAKE_ENV)
+TI_K3_R5_LOADER_KCONFIG_DEPENDENCIES = \
+	host-arm-gnu-toolchain \
+	$(BR2_MAKE_HOST_DEPENDENCY) \
+	$(BR2_BISON_HOST_DEPENDENCY) \
+	$(BR2_FLEX_HOST_DEPENDENCY)
+
+TI_K3_R5_LOADER_BOARD = $(call qstrip,$(BR2_TARGET_TI_K3_R5_LOADER_BOARD))
+ifeq ($(BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG),y)
+TI_K3_R5_LOADER_KCONFIG_DEFCONFIG = $(call qstrip,$(BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG))_defconfig
+else ifeq ($(BR2_TARGET_TI_K3_R5_LOADER_USE_CUSTOM_CONFIG),y)
+TI_K3_R5_LOADER_KCONFIG_FILE = $(call qstrip,$(BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_CONFIG_FILE))
+endif # BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG
+TI_K3_R5_LOADER_MAKE_OPTS = \
+	CROSS_COMPILE=$(HOST_DIR)/bin/arm-none-eabi- \
+	ARCH=arm \
+	HOSTCC="$(HOSTCC) $(subst -I/,-isystem /,$(subst -I /,-isystem /,$(HOST_CFLAGS)))" \
+	HOSTLDFLAGS="$(HOST_LDFLAGS)"
+
+define TI_K3_R5_LOADER_BUILD_CMDS
+	$(TARGET_CONFIGURE_OPTS) $(TI_K3_R5_LOADER_MAKE) -C $(@D) $(TI_K3_R5_LOADER_MAKE_OPTS)
+endef
+
+define TI_K3_R5_LOADER_INSTALL_IMAGES_CMDS
+	cp $(@D)/spl/u-boot-spl.bin $(BINARIES_DIR)/r5-u-boot-spl.bin
+endef
+
+$(eval $(kconfig-package))