security/vboot: Add two weak methods for vboot2

In order to make VBOOT2 independent from the CHROMEOS
kconfig option a weak method for get_write_protect_state
and get_recovery_mode_switch() is required.

Introduce a kconfig option for controlling this
behaviour.

This is a temporary fix and will be removed afterwards.

Change-Id: I3b1555bd93e1605e04d5c3ea6a752eb1459e426e
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/22102
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/src/security/vboot/bootmode.c b/src/security/vboot/bootmode.c
index 834bc481e1..05098b4304 100644
--- a/src/security/vboot/bootmode.c
+++ b/src/security/vboot/bootmode.c
@@ -169,3 +169,20 @@ int vboot_developer_mode_enabled(void)
 
 	return 0;
 }
+
+#if IS_ENABLED(CONFIG_VBOOT_NO_BOARD_SUPPORT)
+/**
+ * TODO: Create flash protection interface which implements get_write_protect_state.
+ * get_recovery_mode_switch should be implemented as default function.
+ */
+int __attribute__((weak)) get_write_protect_state(void)
+{
+	return 0;
+}
+
+int __attribute__((weak)) get_recovery_mode_switch(void)
+{
+	return 0;
+}
+
+#endif