bootstage: Add SPL support

Allow usage of the bootstage facilities in SPL.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 01dece5..86f53e7 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -178,7 +178,7 @@
 	return 0;
 }
 
-#if CONFIG_IS_ENABLED(BOOTSTAGE)
+#if CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
 void show_boot_progress(int val)
 {
 	outb(val, POST_PORT);
diff --git a/board/siemens/iot2050/board.c b/board/siemens/iot2050/board.c
index b211097..16ae2ff 100644
--- a/board/siemens/iot2050/board.c
+++ b/board/siemens/iot2050/board.c
@@ -250,7 +250,7 @@
 {
 }
 
-#if CONFIG_IS_ENABLED(LED) && CONFIG_IS_ENABLED(BOOTSTAGE)
+#if CONFIG_IS_ENABLED(LED) && CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
 /*
  * Indicate any error or (accidental?) entering of CLI via the red status LED.
  */
diff --git a/common/Kconfig.boot b/common/Kconfig.boot
index c948d58..a8d4be2 100644
--- a/common/Kconfig.boot
+++ b/common/Kconfig.boot
@@ -703,6 +703,15 @@
 	  -150	common/cmd_nand.c	Incorrect FIT image format
 	  151	common/cmd_nand.c	FIT image format OK
 
+config SPL_SHOW_BOOT_PROGRESS
+	bool "Show boot progress in a board-specific manner"
+	depends on SPL
+	help
+	  Defining this option allows to add some board-specific code (calling
+	  a user-provided function show_boot_progress(int) that enables you to
+	  show the system's boot progress on some display (for example, some
+	  LEDs) on your board. For details see SHOW_BOOT_PROGRESS.
+
 endmenu
 
 menu "Boot media"
diff --git a/common/init/board_init.c b/common/init/board_init.c
index 0965b96..eab5ee1 100644
--- a/common/init/board_init.c
+++ b/common/init/board_init.c
@@ -166,7 +166,7 @@
 		board_init_f_init_stack_protection();
 }
 
-#if CONFIG_IS_ENABLED(BOOTSTAGE)
+#if CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
 /*
  * Board-specific Platform code can reimplement show_boot_progress () if needed
  */
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 0c08da0..99cde66 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -61,7 +61,7 @@
 /* Define board data structure */
 static struct bd_info bdata __attribute__ ((section(".data")));
 
-#if CONFIG_IS_ENABLED(BOOTSTAGE)
+#if CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
 /*
  * Board-specific Platform code can reimplement show_boot_progress () if needed
  */
diff --git a/include/bootstage.h b/include/bootstage.h
index f837a38..8d1989a 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -220,7 +220,7 @@
  */
 ulong timer_get_boot_us(void);
 
-#if defined(USE_HOSTCC) || !CONFIG_IS_ENABLED(BOOTSTAGE)
+#if defined(USE_HOSTCC) || !CONFIG_IS_ENABLED(SHOW_BOOT_PROGRESS)
 #define show_boot_progress(val) do {} while (0)
 #else
 /**