Fix usage of CONFIG_PREBOOT
Due to usage of PREBOOT in Kconfig, macro CONFIG_PREBOOT is always defined
when CONFIG_USE_PREBOOT is enabled. In case CONFIG_PREBOOT is not
explicitly enabled it is set to empty C string and therefore
'#ifdef CONFIG_PREBOOT' guard does not work. Fix this issue by introducing
a new Kconfig symbol PREBOOT_DEFINED which cause to define new C macro
CONFIG_PREBOOT_DEFINED only when CONFIG_PREBOOT is really defined.
Change usage of '#ifdef CONFIG_PREBOOT' by '#ifdef CONFIG_USE_PREBOOT' for
code which checks if preboot code would be called and by
'#ifdef CONFIG_PREBOOT_DEFINED' for defining preboot code.
Signed-off-by: Pali Rohár <pali@kernel.org>
diff --git a/boot/Kconfig b/boot/Kconfig
index d5c582e..4a001bc 100644
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -1492,6 +1492,10 @@
help
This is the default of "preboot" environment variable.
+config PREBOOT_DEFINED
+ bool
+ default y if PREBOOT != ""
+
config DEFAULT_FDT_FILE
string "Default fdt file"
help