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/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index 83bb445..382c01d 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -929,7 +929,7 @@
"Returns 0 (true) to shell if key is pressed."
);
-#ifdef CONFIG_PREBOOT
+#ifdef CONFIG_USE_PREBOOT
static char const kbd_magic_prefix[] = "key_magic";
static char const kbd_command_prefix[] = "key_cmd";
@@ -989,7 +989,7 @@
gpio_request(IMX_GPIO_NR(2, 3), "search");
gpio_request(IMX_GPIO_NR(7, 13), "volup");
gpio_request(IMX_GPIO_NR(4, 5), "voldown");
-#ifdef CONFIG_PREBOOT
+#ifdef CONFIG_USE_PREBOOT
preboot_keys();
#endif
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
diff --git a/include/env_default.h b/include/env_default.h
index 4e461c8..7c9c00a 100644
--- a/include/env_default.h
+++ b/include/env_default.h
@@ -62,7 +62,7 @@
#ifdef CONFIG_SYS_DISABLE_AUTOLOAD
"autoload=0\0"
#endif
-#ifdef CONFIG_PREBOOT
+#ifdef CONFIG_PREBOOT_DEFINED
"preboot=" CONFIG_PREBOOT "\0"
#endif
#ifdef CONFIG_ROOTPATH