Hymod Board Database(C) Copyright 2001Murray Jensen <Murray.Jensen@csiro.au>CSIRO Manufacturing Science and Technology, Preston Lab25-Jun-01This stuff is a set of PHP/MySQL scripts to implement a custom boarddatabase. It will need *extensive* hacking to modify it to keep theinformation about your custom boards that you want, however it is a goodstarting point.How it is used:	1. a board has gone through all the hardware testing etc and is	   ready to have the flash programmed for the first time - first you	   go to a web page and fill in information about the board in a form	   to register it in a database	2. the web stuff allocates a (unique) serial number and (optionally)	   a (locally administered) ethernet address and stores the information	   in a database using the serial number as the key (can do whole	   batches of boards in one go and/or use a previously registered board	   as defaults for the new board(s))	3. it then creates a file in the tftp area of a server somewhere	   containing the board information in a simple text format (one	   per serial number)	4. all hymod boards have an i2c eeprom, and when U-Boot sees that	   the eeprom is unitialised, it prompts for a serial number and	   ethernet address (if not set), then transfers the file created	   in step 3 from the server and initialises the eeprom from its	   contentsWhat this means is you can't boot the board until you have allocated a serialnumber, but you don't have to type it all twice - you do it once on the weband the board then finds the info it needs to initialise its eeprom. Theother side of the coin is the reading of the eeprom and how it gets passedto Linux (or another O/S).To see how this is all done for the hymod boards look at the code in the"board/hymod" directory and in the file "include/asm/hymod.h". Hymod boardscan have a mezzanine card which also have an eeprom that needs allocating,the same process is used for these as well - just a different i2c address.Other forms provide the following functions:	- browsing the board database	- editing board information (one at a time)	- maintaining/browsing a (simple) per board event logYou will need: MySQL (I use version 3.23.7-alpha), PHP4 (with MySQLsupport enabled) and a web server (I use Apache 1.3.x).I originally started by using phpMyBuilder (http://kyber.dk/phpMyBuilder)but it soon got far more complicated than that could handle (but I leftthe copyright messages in there anyway). Most of the code resides in thecommon defs.php file, which shouldn't need much alteration - all the workwill be in shaping the front-end php files to your liking.Here's a quick summary of what needs doing to use it for your boards:1. get phpMyAdmin (http://phpwizard.net/projects/phpMyAdmin/) - it's an   invaluable tool for this sort of stuff (this step is optional of course)2. edit "bddb.css" to your taste, if you could be bothered - I have no   idea what is in there or what it does - I copied it from somewhere else   ("user.css" from the phpMyEdit (http://phpmyedit.sourcerforge.net) package,   I think) - I figure one day I'll see what sort of things I can change   in there.3. create a mysql database - call it whatever you like4. edit "create_tables.sql" and modify the "boards" table schema to   reflect the information you want to keep about your boards. It may or   may not be easier to do this and the next step in phpMyAdmin. Check out   the MySQL documentation at http://www.mysql.com/doc/ in particular the   column types at http://www.mysql.com/doc/C/o/Column_types.html - Note   there is only support for a few data types:	int		- presented as an html text input	char/text	- presented as an html text input	date		- presented as an html text input	enum		- presented as an html radio input   I also have what I call "enum_multi" which is a set of enums with the   same name, but suffixed with a number e.g. fred0, fred1, fred2. These   are presented as a number of html select's with a single label "fred"   this is useful for board characteristics that have multiple items of   the same type e.g. multiple banks of sdram.5. use the "create_tables.sql" file to create the "boards" table in the   database e.g. mysql dbname < create_tables.sql6. create a user and password for the web server to log into the MySQL   database with; give this user select, insert and update privileges   to the database created in 3 (and delete, if you want the "delete"   functions in the edit forms to work- I have this turned off). phpMyAdmin   helps in this step.7. edit "config.php" and set the variables: $mysql_user, $mysql_pw, $mysql_db,   $bddb_cfgdir and $bddb_label - keep the contents of this file secret - it   contains the web servers username and password (the three $mysql_* vars   are set from the previous step)8. edit "defs.php" and a. adjust the various enum value arrays and b. edit   the function "pg_foot()" to remove my email address :-)9. do major hacking on the following files: browse.php, doedit.php, donew.php,   edit.php and new.php to reflect your database schema - fortunately the   hacking is fairly straight-forward, but it is boring and time-consuming.These notes were written rather hastily - if you find any obvious problemsplease let me know.