boot/opensbi: add options to enable/disable image installation

Until now, whenever a BR2_TARGET_OPENSBI_PLAT value was specified,
opensbi.mk was assuming that both fw_jump and fw_dynamic would be
produced. However, this is not the case: the OpenSBI per-platform
config.mk can decide which image to build.

As an example, the config.mk for VIC7100-based BeagleV only enables
producing the fw_payload image.

This commit adds three options to enable the installation of images:
one for fw_jump, one for fw_dynamic, one for fw_payload.

The options for fw_jump and fw_dynamic are "default y" when
BR2_TARGET_OPENSBI_PLAT is not empty, to preserve existing behavior.

The option for fw_payload is forcefully selected when either Linux or
U-Boot are selected as payloads.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

boot/opensbi/Config.in

@@ -74,11 +74,30 @@ config BR2_TARGET_OPENSBI_PLAT
 	  the platform specific static library libplatsbi.a and firmware
 	  examples are built.
 
+config BR2_TARGET_OPENSBI_INSTALL_DYNAMIC_IMG
+	bool "Install fw_dynamic image"
+	default y if BR2_TARGET_OPENSBI_PLAT != ""
+	help
+	  This installs the fw_dynamic image.
+
+config BR2_TARGET_OPENSBI_INSTALL_JUMP_IMG
+	bool "Install fw_jump image"
+	default y if BR2_TARGET_OPENSBI_PLAT != ""
+	help
+	  This installs the fw_jump image.
+
+config BR2_TARGET_OPENSBI_INSTALL_PAYLOAD_IMG
+	bool "Install fw_payload image"
+	help
+	  This option enables the installation of the fw_paylaod
+	  image.
+
 config BR2_TARGET_OPENSBI_LINUX_PAYLOAD
 	bool "Include Linux as OpenSBI Payload"
 	depends on BR2_TARGET_OPENSBI_PLAT != ""
 	depends on BR2_LINUX_KERNEL
 	depends on BR2_LINUX_KERNEL_IMAGE
+	select BR2_TARGET_OPENSBI_INSTALL_PAYLOAD_IMG
 	help
 	  Build OpenSBI with the Linux kernel as a Payload.
 
@@ -86,6 +105,7 @@ config BR2_TARGET_OPENSBI_UBOOT_PAYLOAD
 	bool "Include U-Boot as OpenSBI Payload"
 	depends on BR2_TARGET_OPENSBI_PLAT != ""
 	depends on BR2_TARGET_UBOOT
+	select BR2_TARGET_OPENSBI_INSTALL_PAYLOAD_IMG
 	help
 	  Build OpenSBI with the U-Boot as a Payload.
 

boot/opensbi/opensbi.mk

@@ -50,15 +50,19 @@ define OPENSBI_BUILD_CMDS
 	$(TARGET_MAKE_ENV) $(OPENSBI_MAKE_ENV) $(MAKE) -C $(@D)
 endef
 
-ifneq ($(OPENSBI_PLAT),)
+ifeq ($(BR2_TARGET_OPENSBI_INSTALL_DYNAMIC_IMG),y)
 OPENSBI_INSTALL_IMAGES = YES
-OPENSBI_FW_IMAGES += jump dynamic
-ifeq ($(BR2_TARGET_OPENSBI_LINUX_PAYLOAD),y)
-OPENSBI_FW_IMAGES += payload
+OPENSBI_FW_IMAGES += dynamic
 endif
-ifeq ($(BR2_TARGET_OPENSBI_UBOOT_PAYLOAD),y)
-OPENSBI_FW_IMAGES = payload
+
+ifeq ($(BR2_TARGET_OPENSBI_INSTALL_JUMP_IMG),y)
+OPENSBI_INSTALL_IMAGES = YES
+OPENSBI_FW_IMAGES += jump
 endif
+
+ifeq ($(BR2_TARGET_OPENSBI_INSTALL_PAYLOAD_IMG),y)
+OPENSBI_INSTALL_IMAGES = YES
+OPENSBI_FW_IMAGES += payload
 endif
 
 define OPENSBI_INSTALL_IMAGES_CMDS