[U-Boot] [RFC PATCH v2 01/15] bootstage: Create an initial header for boot progress integers

Simon Glass
2011-12-10T21:07:53Z

At present boot_stage_progress() is called with various magic numbers. The
new bootstage.h header will be used to turn these into symbolic names
throughout the code.

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

include/bootstage.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++
include/common.h | 6 +---
2 files changed, 63 insertions(+), 4 deletions(-)
create mode 100644 include/bootstage.h

diff --git a/include/bootstage.h b/include/bootstage.h
new file mode 100644
index 0000000..4a4300f
--- /dev/null
+++ b/include/bootstage.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _BOOTSTAGE_H
+#define _BOOTSTAGE_H
+
+/*
+ * This file implements recording of each stage of the boot process. It is
+ * intended to implement timing of each stage, reporting this information
+ * to the user and passing it to the OS for logging / further analysis.
+ */
+
+/*
+ * A list of boot stages that we know about. Each of these indicates the
+ * state that we are at, and the action that we are about to perform. For
+ * errors, we issue an error for an item when it fails. Therefore the
+ * normal sequence is:
+ *
+ * progres action1
+ * progres action2
+ * progres action3
+ *
+ * and an error condition where action 3 failed would be:
+ *
+ * progres action1
+ * progres action2
+ * progres action3
+ * error on action3
+ */
+enum bootstage_id {
+ BOOTSTAGE_ID_RUN_OS = 15, /* Exiting U-Boot, entering OS */
+};
+
+/*
+ * Board-specific platform code can implement show_boot_progress () if
+ * needed.
+ *
+ * @param val Progress state (enum bootstage_id), or -id if an error
+ * has occurred.
+ */
+void show_boot_progress(int val);
+
+#endif
diff --git a/include/common.h b/include/common.h
index 05a658c..e918ca0 100644
--- a/include/common.h
+++ b/include/common.h
@@ -801,10 +801,8 @@ int pcmcia_init (void);
#ifdef CONFIG_STATUS_LED
# include <status_led.h>
#endif
-/*
- * Board-specific Platform code can reimplement show_boot_progress () if needed
- */
-void show_boot_progress(int val);
+
+#include <bootstage.h>

/* Multicore arch functions */
#ifdef CONFIG_MP
--
1.7.3.1