Initial revision
diff --git a/doc/README.OXC b/doc/README.OXC
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+This document contains different information about the port
+of U-Boot for the OXC board designed by Lucent Technologies,
+Inc.
+
+1. Showing activity
+
+U-Boot for the OXC board can show its current status using
+the Active LED. This feature is configured by the following
+options:
+
+CONFIG_SHOW_ACTIVITY
+
+ When this option is on, the Active LED is blinking fast
+when U-Boot runs in the idle loop (i.e. waits for user
+commands from serial console) and blinking slow when it
+downloads an image over network. When U-Boot loads an image
+over serial line the Active LED does not blink and its state
+is random (i.e. either constant on or constant off).
+
+CONFIG_SHOW_BOOT_PROGRESS
+
+ When this option is on, U-Boot switches the Active LED
+off before booting an image and switches it on if booting
+failed due to some reasons.
+
diff --git a/doc/README.autoboot b/doc/README.autoboot
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+++ b/doc/README.autoboot
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+/*
+ * (C) Copyright 2001
+ * Dave Ellis, SIXNET, dge@sixnetio.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
+ */
+
+Using autoboot configuration options
+====================================
+
+The basic autoboot configuration options are documented in the main
+U-Boot README. See it for details. They are:
+
+ bootdelay
+ bootcmd
+ CONFIG_BOOTDELAY
+ CONFIG_BOOTCOMMAND
+
+Some additional options that make autoboot safer in a production
+product are documented here.
+
+Why use them?
+-------------
+
+The basic autoboot feature allows a system to automatically boot to
+the real application (such as Linux) without a user having to enter
+any commands. If any key is pressed before the boot delay time
+expires, U-Boot stops the autoboot process, gives a U-Boot prompt
+and waits forever for a command. That's a good thing if you pressed a
+key because you wanted to get the prompt.
+
+It's not so good if the key press was a stray character on the
+console serial port, say because a user who knows nothing about
+U-Boot pressed a key before the system had time to boot. It's even
+worse on an embedded product that doesn't have a console during
+normal use. The modem plugged into that console port sends a
+character at the wrong time and the system hangs, with no clue as to
+why it isn't working.
+
+You might want the system to autoboot to recover after an external
+configuration program stops autoboot. If the configuration program
+dies or loses its connection (modems can disconnect at the worst
+time) U-Boot will patiently wait forever for it to finish.
+
+These additional configuration options can help provide a system that
+boots when it should, but still allows access to U-Boot.
+
+What they do
+------------
+
+ CONFIG_BOOT_RETRY_TIME
+ CONFIG_BOOT_RETRY_MIN
+
+ bootretry environment variable
+
+ These options determine what happens after autoboot is
+ stopped and U-Boot is waiting for commands.
+
+ CONFIG_BOOT_RETRY_TIME must be defined to enable the boot
+ retry feature. If the environment variable 'bootretry' is
+ found then its value is used, otherwise the retry timeout is
+ CONFIG_BOOT_RETRY_TIME. CONFIG_BOOT_RETRY_MIN is optional and
+ defaults to CONFIG_BOOT_RETRY_TIME. All times are in seconds.
+
+ If the retry timeout is negative, the U-Boot command prompt
+ never times out. Otherwise it is forced to be at least
+ CONFIG_BOOT_RETRY_MIN seconds. If no valid U-Boot command is
+ entered before the specified time the boot delay sequence is
+ restarted. Each command that U-Boot executes restarts the
+ timeout.
+
+ If CONFIG_BOOT_RETRY_TIME < 0 the feature is there, but
+ doesn't do anything unless the environment variable
+ 'bootretry' is >= 0.
+
+ CONFIG_AUTOBOOT_KEYED
+ CONFIG_AUTOBOOT_PROMPT
+ CONFIG_AUTOBOOT_DELAY_STR
+ CONFIG_AUTOBOOT_STOP_STR
+ CONFIG_AUTOBOOT_DELAY_STR2
+ CONFIG_AUTOBOOT_STOP_STR2
+
+ bootdelaykey environment variable
+ bootstopkey environment variable
+ bootdelaykey2 environment variable
+ bootstopkey2 environment variable
+
+ These options give more control over stopping autoboot. When
+ they are used a specific character or string is required to
+ stop or delay autoboot.
+
+ Define CONFIG_AUTOBOOT_KEYED (no value required) to enable
+ this group of options. CONFIG_AUTOBOOT_DELAY_STR,
+ CONFIG_AUTOBOOT_STOP_STR or both should be specified (or
+ specified by the corresponding environment variable),
+ otherwise there is no way to stop autoboot.
+
+ CONFIG_AUTOBOOT_PROMPT is displayed before the boot delay
+ selected by CONFIG_BOOTDELAY starts. If it is not defined
+ there is no output indicating that autoboot is in progress.
+ If "%d" is included, it is replaced by the number of seconds
+ remaining before autoboot will start, but it does not count
+ down the seconds. "autoboot in %d seconds\n" is a reasonable
+ prompt.
+
+ If CONFIG_AUTOBOOT_DELAY_STR or bootdelaykey is specified and
+ this string is received from console input before autoboot
+ starts booting, U-Boot gives a command prompt. The U-Boot
+ prompt will time out if CONFIG_BOOT_RETRY_TIME is used,
+ otherwise it never times out.
+
+ If CONFIG_AUTOBOOT_STOP_STR or bootstopkey is specified and
+ this string is received from console input before autoboot
+ starts booting, U-Boot gives a command prompt. The U-Boot
+ prompt never times out, even if CONFIG_BOOT_RETRY_TIME is
+ used.
+
+ The string recognition is not very sophisticated. If a
+ partial match is detected, the first non-matching character
+ is checked to see if starts a new match. There is no check
+ for a shorter partial match, so it's best if the first
+ character of a key string does not appear in the rest of the
+ string.
+
+ Using the CONFIG_AUTOBOOT_DELAY_STR2 / bootdelaykey2 and/or
+ CONFIG_AUTOBOOT_STOP_STR2 / bootstopkey #defines and/or
+ environment variables you can specify a second, alternate
+ string (which allows you to haw two "password" strings).
+
+ CONFIG_ZERO_BOOTDELAY_CHECK
+
+ If this option is defined, you can stop the autoboot process
+ by hitting a key even in that case when "bootdelay" has been
+ set to 0. You can set "bootdelay" to a negative value to
+ prevent the check for console input.
+
+ CONFIG_RESET_TO_RETRY
+
+ (Only effective when CONFIG_BOOT_RETRY_TIME is also set)
+ After the countdown timed out, the board will be reset to restart
+ again.
+
diff --git a/doc/README.console b/doc/README.console
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+/*
+ * (C) Copyright 2000
+ * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
+ *
+ * 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
+ */
+
+U-Boot console handling
+========================
+
+HOW THE CONSOLE WORKS?
+----------------------
+
+At system startup U-Boot initializes a serial console. When U-Boot
+relocates itself to RAM, all console drivers are initialized (they
+will register all detected console devices to the system for further
+use).
+
+If not defined in the environment, the first input device is assigned
+to the 'stdin' file, the first output one to 'stdout' and 'stderr'.
+
+You can use the command "coninfo" to see all registered console
+devices and their flags. You can assign a standard file (stdin,
+stdout or stderr) to any device you see in that list simply by
+assigning its name to the corresponding environment variable. For
+example:
+
+ setenv stdin wl_kbd <- To use the wireless keyboard
+ setenv stdout video <- To use the video console
+
+Do a simple "saveenv" to save the console settings in the environment
+and get them working on the next startup, too.
+
+HOW CAN I USE STANDARD FILE INTO THE SOURCES?
+---------------------------------------------
+
+You can use the following functions to access the console:
+
+* STDOUT:
+ putc (to put a char to stdout)
+ puts (to put a string to stdout)
+ printf (to format and put a string to stdout)
+
+* STDIN:
+ tstc (to test for the presence of a char in stdin)
+ getc (to get a char from stdin)
+
+* STDERR:
+ eputc (to put a char to stderr)
+ eputs (to put a string to stderr)
+ eprintf (to format and put a string to stderr)
+
+* FILE (can be 'stdin', 'stdout', 'stderr'):
+ fputc (like putc but redirected to a file)
+ fputs (like puts but redirected to a file)
+ fprintf (like printf but redirected to a file)
+ ftstc (like tstc but redirected to a file)
+ fgetc (like getc but redirected to a file)
+
+Remember that all FILE-related functions CANNOT be used before
+U-Boot relocation (done in 'board_init_r' in common/board.c).
+
+HOW CAN I USE STANDARD FILE INTO APPLICATIONS?
+----------------------------------------------
+
+Use the 'bd_mon_fnc' field of the bd_t structure passed to the
+application to do everything you want with the console.
+
+But REMEMBER that that will work only if you have not overwritten any
+U-Boot code while loading (or uncompressing) the image of your
+application.
+
+For example, you won't get the console stuff running in the Linux
+kernel because the kernel overwrites U-Boot before running. Only
+some parameters like the framebuffer descriptors are passed to the
+kernel in the high memory area to let the applications (the kernel)
+use the framebuffers initialized by U-Boot.
+
+SUPPORTED DRIVERS
+-----------------
+
+Working drivers:
+
+ serial (architecture dependent serial stuff)
+ video (mpc8xx video controller)
+
+Work in progress:
+
+ wl_kbd (Wireless 4PPM keyboard)
+
+Waiting for volounteers:
+
+ lcd (mpc8xx lcd controller; to )
+
+TESTED CONFIGURATIONS
+---------------------
+
+The driver has been tested with the following configurations (see
+CREDITS for other contact informations):
+
+- MPC823FADS with AD7176 on a PAL TV (YCbYCr) - arsenio@tin.it
+- GENIETV with AD7177 on a PAL TV (YCbYCr) - arsenio@tin.it