[Buildroot] [PATCH v2 4/7] opensbi: Add support for custom license files

[Kory Maincent]

The OpenSBI package was not providing any license file when a custom
Linux version was selected.

Fix this by adding a Kconfig option to specify the license file,
with a default value set to the commonly used license paths.

Signed-off-by: Kory Maincent <kory.maincent at bootlin.com>
---

Change in v2:
- Do not show license option if it is not a custom repo version
---
 boot/opensbi/Config.in  | 16 ++++++++++++++++
 boot/opensbi/opensbi.mk |  4 +---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/boot/opensbi/Config.in b/boot/opensbi/Config.in
index 9c6047df5e66f67e077f8b613b760f073301654e..86cccb1003b813076581f7eff3aa4c1eb530ebe0 100644
--- a/boot/opensbi/Config.in
+++ b/boot/opensbi/Config.in
@@ -64,6 +64,22 @@ config BR2_TARGET_OPENSBI_VERSION
 	default BR2_TARGET_OPENSBI_CUSTOM_REPO_VERSION \
 		if BR2_TARGET_OPENSBI_CUSTOM_GIT
 
+config BR2_TARGET_OPENSBI_CUSTOM_LICENSE_FILES
+	string "OpenSBI license files"
+	default "COPYING.BSD"
+	depends on BR2_TARGET_OPENSBI_CUSTOM_GIT || \
+		   BR2_TARGET_OPENSBI_CUSTOM_TARBALL
+	help
+	  A space-separated list of license files related to the OpenSBI
+	  package.
+
+config BR2_TARGET_OPENSBI_LICENSE_FILES
+	string
+	default BR2_TARGET_OPENSBI_CUSTOM_LICENSE_FILES \
+		if BR2_TARGET_OPENSBI_CUSTOM_GIT || \
+		   BR2_TARGET_OPENSBI_CUSTOM_TARBALL
+	default "COPYING.BSD"
+
 config BR2_TARGET_OPENSBI_PLAT
 	string "OpenSBI Platform"
 	default ""
diff --git a/boot/opensbi/opensbi.mk b/boot/opensbi/opensbi.mk
index 0142769a1276175ff9ababfb4d40ac9b7054c3e8..f9f550176f925cdec8193e0fe2891338f69a71b3 100644
--- a/boot/opensbi/opensbi.mk
+++ b/boot/opensbi/opensbi.mk
@@ -20,9 +20,7 @@ OPENSBI_SITE = $(call github,riscv-software-src,opensbi,v$(OPENSBI_VERSION))
 endif
 
 OPENSBI_LICENSE = BSD-2-Clause
-ifeq ($(BR2_TARGET_OPENSBI_LATEST_VERSION),y)
-OPENSBI_LICENSE_FILES = COPYING.BSD
-endif
+OPENSBI_LICENSE_FILES = $(call qstrip,$(BR2_TARGET_OPENSBI_LICENSE_FILES))
 OPENSBI_INSTALL_TARGET = NO
 OPENSBI_INSTALL_STAGING = YES
 

-- 
2.43.0