**** BEGIN LOGGING AT Fri Jun 04 02:59:57 2010
Jun 04 22:26:20 <flyback> marex,
Jun 04 22:26:37 <flyback> it looks like there is enough linux support of disk-on-chip to use the bootblock for a bootloader at least
Jun 04 22:26:43 <flyback> then go to sd/mmc
Jun 04 22:29:04 <marex> sure, go ahead and write the driver
Jun 04 22:29:17 <flyback> no dude
Jun 04 22:29:20 <flyback> no driver needed
Jun 04 22:29:24 <flyback> for bootblock
Jun 04 22:29:35 <marex> ok, write the codwe
Jun 04 22:29:36 <flyback> i'm seeing that other handhelds projects have done this
Jun 04 22:29:37 <marex> *code
Jun 04 22:29:48 <flyback> so there must be code already
Jun 04 22:30:13 <flyback> any ways at least to hack the t5's rom then flash it
Jun 04 22:30:23 <flyback> so palmos just autostarts a linux bootloader
Jun 04 22:31:19 <flyback> apprentely the first block of the disk-on-chip can be used just like a boot rom
Jun 04 22:31:28 <flyback> small nor block
Jun 04 22:31:30 <flyback> 4kb
Jun 04 22:34:25 <marex> just like OneNAND ... though to reprogram the first block on OneNAND, you need to actually write the first block in it's NAND array
Jun 04 22:34:29 <flyback> all I am ever looking for out of that damn disk-on-chip is basically "lilo" "grub" "cocoboot" bootloader
Jun 04 22:34:41 <marex> maybe DoC works this way too ... dunno, go ahead and investigate
Jun 04 22:34:43 <flyback> yes but it's possible to use jtag to program it
Jun 04 22:35:03 <flyback> and I just happen to have a spare t5 board :)
Jun 04 22:35:14 <flyback> my old one feel apart and I damaged the screen with cleaner
Jun 04 22:35:19 <flyback> so I can experiment on it
Jun 04 22:35:21 <marex> go ahead and play
Jun 04 22:35:31 <flyback> i'll let you know what I find
Jun 04 22:35:36 <flyback> what happen to #handhelds
Jun 04 22:37:45 <flyback> hell i'd settle for soldering a small rom on the thing if there was a way :P
Jun 04 22:39:22 <flyback> The bootloader is split into two parts:
Jun 04 22:39:23 <flyback> IPL (Initial program loader)
Jun 04 22:39:23 <flyback> SPL (Secondary program loader)
Jun 04 22:39:23 <flyback> The IPL lives in the couple of kilobytes from which you can XIP and it
Jun 04 22:39:23 <flyback> access the boot partition of you DOC. It loads the SPL from this boot
Jun 04 22:39:23 <flyback> partition and then executes it. It needs to do the bare minimum setup to get
Jun 04 22:39:25 <flyback> the system RAM up.
Jun 04 22:39:27 <flyback> The SPL lives on a binary formatted section of DOC - this is about as close
Jun 04 22:39:29 <flyback> as you can get to a 'flat' piece of memory on these devices. You can also
Jun 04 22:39:31 <flyback> store other things in multiple binary formtatteed sections.
Jun 04 22:39:33 <flyback> The DOC can be formatted in this way using the M-Systems supplied tools.
Jun 04 22:39:35 <flyback> Hence you can put your data into one of these boot blocks (you can have more
Jun 04 22:39:37 <flyback> than one) without needing to worry about a file system.
Jun 04 22:39:39 <flyback> You can access these partitions from the OS too.
Jun 04 22:39:43 <flyback> You can get the tools and the kit from M-Systems.
Jun 04 22:39:45 <flyback> You can write to the DOC either using a JTAG or if you can get code onto
Jun 04 22:39:47 <flyback> your hardware already then you can just put your loader into RAM and use
Jun 04 22:39:49 <flyback> that to program the DOC.
Jun 04 22:39:51 <flyback> M-System have examples of IPL in the kit.
Jun 04 22:45:31 <marex> flyback, you can write anything over JTAG if you can JTAG the CPU and toggle the pins
Jun 04 22:45:47 <marex> flyback, go ahead and RE the first 2kb at 0x0
Jun 04 22:45:50 <marex> that's the IPL
Jun 04 22:45:59 <marex> it'll give you idea on how to load the SPL
Jun 04 22:46:57 <flyback> i'm just throwing out ideas marex and what I found
Jun 04 22:47:00 <flyback> not saying you are wrong
Jun 04 22:51:44 <marex> flyback, I'm just saying DoC is EOLed, not worth bothering with anymore
Jun 04 22:54:50 <flyback> :/
Jun 04 22:55:03 <flyback> that's sad cause my t5 is most of the same hw as the tx
Jun 04 22:55:09 <flyback> I just can't flash it to always boot linux :/
Jun 04 22:55:18 <flyback> all I want is it to jump to sd/mmc
Jun 04 22:55:26 <flyback> don't want to use the mdoc past that
Jun 04 23:00:33 <marex> try palmos autorun feature
Jun 04 23:02:10 <flyback> yeah I guess :/
Jun 04 23:02:27 <flyback> doesn't seem like anything else will ever happen
Jun 04 23:02:30 <flyback> palm fucked me over
Jun 04 23:02:37 <flyback> i'm glad they are dead and dead again
Jun 04 23:03:59 <flyback> this time for good
**** ENDING LOGGING AT Sat Jun 05 02:59:57 2010