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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-04-12 20:07:57 (GMT)
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-04-12 20:07:57 (GMT)
commit18122019972ca639ee3b581257e3a63ff7c8efeb (patch)
tree52f7223e7c63f43322f3eee4722743e12190a19f /doc
parent90639feaa0d66a204f9d03a325ab14e2f97f6cbb (diff)
parent785881f775252940185e10fbb2d5299c9ffa6bce (diff)
downloadu-boot-18122019972ca639ee3b581257e3a63ff7c8efeb.tar.xz
Merge branch 'u-boot/master' into 'u-boot-arm/master'
Conflicts: drivers/video/exynos_fb.c
Diffstat (limited to 'doc')
-rw-r--r--doc/README.bootmenu115
-rw-r--r--doc/README.fdt-control8
-rw-r--r--doc/README.menu9
3 files changed, 131 insertions, 1 deletions
diff --git a/doc/README.bootmenu b/doc/README.bootmenu
new file mode 100644
index 0000000..9e85b40
--- /dev/null
+++ b/doc/README.bootmenu
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2011-2012 Pali Rohár <pali.rohar@gmail.com>
+ *
+ * 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
+ */
+
+ANSI terminal bootmenu command
+
+The "bootmenu" command uses U-Boot menu interfaces and provides
+a simple mechanism for creating menus with different boot items.
+The cursor keys "Up" and "Down" are used for navigation through
+the items. Current active menu item is highlighted and can be
+selected using the "Enter" key. The selection of the highlighted
+menu entry invokes an U-Boot command (or a list of commands)
+associated with this menu entry.
+
+The "bootmenu" command interprets ANSI escape sequencies, so
+an ANSI terminal is required for proper menu rendering and item
+selection.
+
+The assembling of the menu is done via a set of environment variables
+"bootmenu_<num>" and "bootmenu_delay", i.e.:
+
+ bootmenu_delay=<delay>
+ bootmenu_<num>="<title>=<commands>"
+
+ <delay> is the autoboot delay in seconds, after which the first
+ menu entry will be selected automatically
+
+ <num> is the boot menu entry number, starting from zero
+
+ <title> is the text of the menu entry shown on the console
+ or on the boot screen
+
+ <commands> are commands which will be executed when a menu
+ entry is selected
+
+ (title and commands are separated by first appearance of '='
+ character in the environment variable)
+
+First (optional) argument of the "bootmenu" command is a delay specifier
+and it overrides the delay value defined by "bootmenu_delay" environment
+variable. If the environment variable "bootmenu_delay" is not set or if
+the argument of the "bootmenu" command is not specified, the default delay
+will be CONFIG_BOOTDELAY. If delay is 0, no menu entries will be shown on
+the console (or on the screen) and the command of the first menu entry will
+be called immediately. If delay is less then 0, bootmenu will be shown and
+autoboot will be disabled.
+
+Bootmenu always adds menu entry "U-Boot console" at the end of all menu
+entries specified by environment variables. When selecting this entry
+the bootmenu terminates and the usual U-Boot command prompt is presented
+to the user.
+
+Example environment:
+
+ setenv bootmenu_0 Boot 1. kernel=bootm 0x82000000 # Set first menu entry
+ setenv bootmenu_1 Boot 2. kernel=bootm 0x83000000 # Set second menu entry
+ setenv bootmenu_2 Reset board=reset # Set third menu entry
+ setenv bootmenu_3 U-Boot boot order=boot # Set fourth menu entry
+ bootmenu 20 # Run bootmenu with autoboot delay 20s
+
+
+The above example will be rendered as below
+(without decorating rectangle):
+
+┌──────────────────────────────────────────┐
+│ │
+│ *** U-Boot Boot Menu *** │
+│ │
+│ Boot 1. kernel │
+│ Boot 2. kernel │
+│ Reset board │
+│ U-Boot boot order │
+│ U-Boot console │
+│ │
+│ Hit any key to stop autoboot: 20 │
+│ Press UP/DOWN to move, ENTER to select │
+│ │
+└──────────────────────────────────────────┘
+
+Selected menu entry will be highlighted - it will have inverted
+background and text colors.
+
+To enable the "bootmenu" command add following definitions to the
+board config file:
+
+ #define CONFIG_CMD_BOOTMENU
+ #define CONFIG_MENU
+
+To run the bootmenu at startup add these additional definitions:
+
+ #define CONFIG_AUTOBOOT_KEYED
+ #define CONFIG_BOOTDELAY 30
+ #define CONFIG_MENU_SHOW
+
+When you intend to use the bootmenu on color frame buffer console,
+make sure to additionally define CONFIG_CFB_CONSOLE_ANSI in the
+board config file.
diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 85bda03..8352835 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -156,6 +156,14 @@ To use this, put something like this in your board header file:
#define CONFIG_EXTRA_ENV_SETTINGS "fdtcontroladdr=10000\0"
+Build:
+
+After board configuration is done, fdt supported u-boot can be build in two ways:
+1) build the default dts which is defined from CONFIG_DEFAULT_DEVICE_TREE
+ $ make
+2) build the user specified dts file
+ $ make DEVICE_TREE=<dts-file-name>
+
Limitations
-----------
diff --git a/doc/README.menu b/doc/README.menu
index 6ce6bba..a8999ca 100644
--- a/doc/README.menu
+++ b/doc/README.menu
@@ -51,7 +51,9 @@ struct menu;
* menu_create() - Creates a menu handle with default settings
*/
struct menu *menu_create(char *title, int timeout, int prompt,
- void (*item_data_print)(void *));
+ void (*item_data_print)(void *),
+ char *(*item_choice)(void *),
+ void *item_choice_data);
/*
* menu_item_add() - Adds or replaces a menu item
@@ -64,6 +66,11 @@ int menu_item_add(struct menu *m, char *item_key, void *item_data);
int menu_default_set(struct menu *m, char *item_key);
/*
+ * menu_default_choice() - Set *choice to point to the default item's data
+ */
+int menu_default_choice(struct menu *m, void **choice);
+
+/*
* menu_get_choice() - Returns the user's selected menu entry, or the
* default if the menu is set to not prompt or the timeout expires.
*/