autoboot: Rename CONFIG_MENUKEY to CONFIG_AUTOBOOT_MENUKEY

Since this is part of the autoboot functionality, it makes sense to name
it with an AUTOBOOT prefix. No mainline boards use it so this should be
safe, and downstream boards will need to adjust.

Since this option is just an integer value, it really needs another option
to control whether the feature is enabled or not. Add a new
CONFIG_USE_AUTOBOOT_MENUKEY for that. This fits better with how things are
done with Kconfig, avoiding the need to use a specific value to disable
the feature.

Signed-off-by: Simon Glass <sjg@chromium.org>

cmd/Kconfig

@@ -153,6 +153,23 @@ config AUTOBOOT_STOP_STR_SHA256
 	  string / password matches a values that is encypted via
 	  a SHA256 hash and saved in the environment.
 
+config AUTOBOOT_USE_MENUKEY
+	bool "Allow a specify key to run a menu from the environment"
+	depends on !AUTOBOOT_KEYED
+	help
+	  If a specific key is pressed to stop autoboot, then the commands in
+	  the environment variable 'menucmd' are executed before boot starts.
+
+config AUTOBOOT_MENUKEY
+	int "ASCII value of boot key to show a menu"
+	default 0
+	depends on AUTOBOOT_USE_MENUKEY
+	help
+	  If this key is pressed to stop autoboot, then the commands in the
+	  environment variable 'menucmd' will be executed before boot starts.
+	  For example, 33 means "!" in ASCII, so pressing ! at boot would take
+	  this action.
+
 endmenu
 
 config BUILD_BIN2C

common/autoboot.c

@@ -224,7 +224,7 @@ static int abortboot_key_sequence(int bootdelay)
 	return abort;
 }
 
-#ifdef CONFIG_MENUKEY
+#ifdef CONFIG_USE_AUTOBOOT_MENUKEY
 static int menukey;
 #endif
 
@@ -252,7 +252,7 @@ static int abortboot_single_key(int bootdelay)
 			if (tstc()) {	/* we got a key press	*/
 				abort  = 1;	/* don't auto boot	*/
 				bootdelay = 0;	/* no more delay	*/
-# ifdef CONFIG_MENUKEY
+# ifdef CONFIG_USE_AUTOBOOT_MENUKEY
 				menukey = getc();
 # else
 				(void) getc();  /* consume input	*/
@@ -358,11 +358,11 @@ void autoboot_command(const char *s)
 #endif
 	}
 
-#ifdef CONFIG_MENUKEY
-	if (menukey == CONFIG_MENUKEY) {
+#ifdef CONFIG_USE_AUTOBOOT_MENUKEY
+	if (menukey == CONFIG_AUTOBOOT_MENUKEY) {
 		s = env_get("menucmd");
 		if (s)
 			run_command_list(s, -1, 0);
 	}
-#endif /* CONFIG_MENUKEY */
+#endif /* CONFIG_USE_AUTOBOOT_MENUKEY */
 }

configs/socfpga_vining_fpga_defconfig

@@ -8,7 +8,7 @@ CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200"
 # CONFIG_USE_BOOTCOMMAND is not set
 CONFIG_USE_PREBOOT=y
-CONFIG_PREBOOT="setenv hostname vining-${unit_serial} ; setenv PS1 "${unit_ident} (${unit_serial}) => " ; if gpio input 78 ; then setenv bootdelay 10 ; setenv boottype rcvr ; else setenv bootdelay 5 ; setenv boottype norm ; fi"
+CONFIG_PREBOOT="setenv hostname vining-${unit_serial} ; setenv PS1 \"${unit_ident} (${unit_serial}) => \" ; if gpio input 78 ; then setenv bootdelay 10 ; setenv boottype rcvr ; else setenv bootdelay 5 ; setenv boottype norm ; fi"
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
 CONFIG_SYS_CONSOLE_ENV_OVERWRITE=y

doc/README.autoboot

@@ -152,3 +152,11 @@ What they do
 	(Only effective when CONFIG_BOOT_RETRY_TIME is also set)
 	After the countdown timed out, the board will be reset to restart
 	again.
+
+  CONFIG_AUTOBOOT_USE_MENUKEY
+  CONFIG_AUTOBOOT_MENUKEY
+
+	If this key is pressed to stop autoboot, then the commands in the
+	environment variable 'menucmd' will be executed before boot starts.
+	For example, 33 means "!" in ASCII, so pressing ! at boot would take
+	this action.

include/autoboot.h

@@ -27,7 +27,7 @@ const char *bootdelay_process(void);
  * autoboot_command() - run the autoboot command
  *
  * If enabled, run the autoboot command returned from bootdelay_process().
- * Also do the CONFIG_MENUKEY processing if enabled.
+ * Also do the CONFIG_AUTOBOOT_MENUKEY processing if enabled.
  *
  * @cmd: Command to run
  */

scripts/config_whitelist.txt

@@ -1140,7 +1140,6 @@ CONFIG_MEMSIZE_MASK
 CONFIG_MEM_HOLE_16M
 CONFIG_MEM_INIT_VALUE
 CONFIG_MEM_REMAP
-CONFIG_MENUKEY
 CONFIG_MENU_SHOW
 CONFIG_MFG_ENV_SETTINGS
 CONFIG_MIIM_ADDRESS