**** BEGIN LOGGING AT Fri Dec 23 02:59:56 2005
Dec 23 05:12:10 <lennert> ok, so, toggling the GPIOs on the pd10000 does actually work
Dec 23 05:12:43 <lennert> i.e., the levels change
Dec 23 05:25:31 <vmaster_> pd10000?
Dec 23 05:35:37 <lennert> via epia pd10000 mini-itx mainboard :)
Dec 23 05:36:42 <lennert> it has 8 exposed gpios
Dec 23 05:37:59 <lennert> is it hard to make a parallel cable 3 to parallel cable 4 adapter (so that i can program a device with a PC4 socket with a PC3 cable)?
Dec 23 05:38:03 <lennert> it doesn't seem hard..
Dec 23 07:30:33 <lennert> the xilinx system ace docs keep saying that it's possible to configure the CFG JTAG port from the TST JTAG port
Dec 23 07:30:44 <lennert> but i can't find any special instruction codes in the .bsd file
Dec 23 07:30:51 <lennert> and there's no other docs about it
Dec 23 07:31:24 <lennert> i really hope there's another way of doing it than using SAMPLE/EXTEST.. but i guess not :-/
Dec 23 07:35:29 <lennert> ah
Dec 23 07:35:34 <lennert> i think ds080 has a typo on page 33
Dec 23 07:35:50 <lennert> CFGTDO in figure 17 should be TSTTDO, and TSTTDO should be CFGTDO
Dec 23 07:35:58 <lennert> if you look at it that way, it's indeed not possible directly
Dec 23 07:46:44 <lennert> or, well..
Dec 23 07:46:50 <lennert> the usb2 interface cpld is on the 'test jtag chain' side
Dec 23 07:46:57 <lennert> and impact does recognise it
Dec 23 07:47:04 <lennert> so maybe there's some sekrit opcodes in the system ace
Dec 23 08:06:20 <lennert> i wonder if they disconnect the PC4 when the XC2C256 is active
Dec 23 08:10:21 <vmaster> what board are you talking about? the digilent spartan3?
Dec 23 08:11:03 <lennert> the digilent xupv2p
Dec 23 08:11:14 <lennert> i.e. virtex2 pro
Dec 23 10:06:59 <ka6sox> morning
Dec 23 10:07:13 <ka6sox> ep1220: ping?
Dec 23 10:09:03 <lennert> okay, the platform usb cable can do it
Dec 23 10:09:10 <lennert> it's just not documented (as usual, with xilinx)
Dec 23 10:13:30 <ka6sox> ah
Dec 23 10:13:41 <ka6sox> this is the V2Pro?
Dec 23 10:13:44 <lennert> ka6sox: you had your v2pro course yet?
Dec 23 10:13:46 <lennert> yeah
Dec 23 10:13:49 <lennert> the digilent v2p board
Dec 23 10:14:06 <ka6sox> that course starts jan 6
Dec 23 10:14:11 <lennert> ah
Dec 23 10:14:22 <ka6sox> my board is skedded to get here by the 2ond
Dec 23 10:14:37 <lennert> while you're at it, ask them why the bitstream format isn't open ;)
Dec 23 10:14:43 <lennert> ka6sox: which board are you getting?
Dec 23 10:14:51 <ka6sox> same as you.
Dec 23 10:14:54 <lennert> ah
Dec 23 10:14:57 <lennert> the xupv2p one
Dec 23 10:15:00 <ka6sox> yep
Dec 23 10:15:15 <lennert> i kind of have it working
Dec 23 10:15:38 <lennert> but it's just so cumbersome to have to load your config to a compatflash card, putt it in the board, put it back, etc.
Dec 23 10:17:26 <ka6sox> yep.
Dec 23 10:17:35 <ka6sox> gotta go fix the Water Heater...
Dec 23 10:17:52 <lennert> maybe it has jtag ;)
Dec 23 10:20:05 <vmaster> heh, i wouldn't be surpised if it had
Dec 23 10:29:23 <lennert> actually, it's probably easier than i thought
Dec 23 11:55:50 <lennert> so
Dec 23 11:55:55 <lennert> it's not actually clear from the system ace docs
Dec 23 11:56:08 <lennert> but the idea is that you splice the system ace into the middle of your boundary scan chain somewhere
Dec 23 11:56:21 <lennert> when it's not configuring your devices, it'll just pass everything through
Dec 23 11:56:36 <lennert> but if it is configuring your devices, it'll shut off the host side from the fpga side
Dec 23 11:57:24 <lennert> some of the diagrams are faulty too
Dec 23 12:30:22 <vmaster> if you live in the U.S., you should check the avnet website
Dec 23 12:30:52 <vmaster> Antti Lukas writes in comp.arch.fpga that avnet offers spartan3e boards free of charge
Dec 23 12:31:52 <lennert> yeah, i know
Dec 23 12:31:59 <lennert> i've been trying to get registered with avnet
Dec 23 12:32:07 <lennert> just click on the 'register' link -- you get a 404 page
Dec 23 12:32:11 <lennert> emailed them about it a few days
Dec 23 12:32:16 <lennert> ago, heard nothing yet
Dec 23 12:32:44 <lennert> okay, they fixed it now
Dec 23 12:35:40 <lennert> registration confirmation is still broken
Dec 23 13:54:49 <lennert> i'm about halfway hacking something up that'll sample a couple of pins and send an ethernet packet every second with the values of those pins
Dec 23 13:55:20 <lennert> next step is to also make the virtex receive ethernet frame
Dec 23 13:55:21 <lennert> s
Dec 23 16:03:58 <beewoolie-afk> [g2]: hey man.  Are you going to be using stock part sold by, erm, that other company that uses Cirrus chips?
Dec 23 16:10:05 <lennert> linux doesn't support the cirrus ep9301, does it?
Dec 23 16:18:23 <beewoolie-afk> If it doesn't,it'll be easy to add.
Dec 23 16:18:47 <beewoolie-afk> hi, lennert
Dec 23 16:18:53 <beewoolie-afk> Did you get a DMM?
Dec 23 16:19:35 <lennert> beewoolie-afk: why so?
Dec 23 16:19:45 <lennert> beewoolie-afk: nope, not yet -- can't find it anywhere in the neigbourhood
Dec 23 16:19:54 <beewoolie-afk> Why will it be easy?
Dec 23 16:20:01 <lennert> yeah, why will it be easy?
Dec 23 16:20:19 <beewoolie-afk> It's an arm9 core.  The only tricky part about these processors is the interrupt handlers.
Dec 23 16:20:27 <lennert> okay..
Dec 23 16:20:30 <beewoolie-afk> I've done four already.
Dec 23 16:20:47 <beewoolie-afk> One more won't be tough.
Dec 23 16:21:03 <lennert> are they different enough to have separate mach-blah dirs?
Dec 23 16:21:07 <beewoolie-afk> We have a cs8900 driver already.
Dec 23 16:21:12 <beewoolie-afk> Don't know.
Dec 23 16:21:19 <beewoolie-afk> it depends on the interrupt handling code.
Dec 23 16:21:22 <lennert> okay, so, where did _you_ put the files? :)
Dec 23 16:21:26 <beewoolie-afk> or, rather, the core.
Dec 23 16:21:33 <lennert> cs8900 is the ugliest driver i've ever seen..
Dec 23 16:21:33 <beewoolie-afk> I support the sharp LH processors.
Dec 23 16:21:47 <beewoolie-afk> I have two directories, one for the ARM9's and another for the ARM7's.
Dec 23 16:21:53 <beewoolie-afk> lol
Dec 23 16:21:57 <beewoolie-afk> I haven't looked at it.
Dec 23 16:22:09 <lennert> cs8900 is like the local town whore
Dec 23 16:22:23 <lennert> everybody keeps adding their hacks to make it work on their boards
Dec 23 16:22:25 <beewoolie-afk> I have a board here with that chip, but it doesn't recognize my jtag for some reason.
Dec 23 16:22:27 <lennert> so it's ifdef spaghetti
Dec 23 16:22:36 <beewoolie-afk> Sounds like it needs some love.
Dec 23 16:22:41 <lennert> yeah
Dec 23 16:22:45 <lennert> some rewriting
Dec 23 16:22:50 <beewoolie-afk> That too.
Dec 23 16:23:14 <lennert> there's an ixdp board with a cs8900
Dec 23 16:23:25 <lennert> normally the registers have 16bit spacing
Dec 23 16:23:31 <lennert> but on the ixdp2401, they have 32bit spacing
Dec 23 16:23:41 <lennert> there's some real ugly hacks for that
Dec 23 16:23:42 <beewoolie-afk> prplague has a cs8900 using board, too.
Dec 23 16:23:50 <lennert> i don't have any cs8900 board myself..
Dec 23 16:23:57 <beewoolie-afk> It should be done as it is in the smc91x driver.
Dec 23 16:23:58 <lennert> i just work on deepak's ixdps remotely
Dec 23 16:24:06 <beewoolie-afk> All of the wierd stuff is in some macros.
Dec 23 16:24:11 <beewoolie-afk> The code is relatively simple.
Dec 23 16:24:14 <lennert> yeah
Dec 23 16:24:20 <lennert> well
Dec 23 16:24:21 <lennert> :)
Dec 23 16:24:30 <lennert> did you have breakfast yet?
Dec 23 16:24:39 <beewoolie-afk> Uh, huh.  And lunch.
Dec 23 16:24:47 <lennert> okay
Dec 23 16:24:51 <beewoolie-afk> I am not talking about the cs8900 at the moment.
Dec 23 16:24:53 <lennert> check include/asm-arm/arch-ixp2000/io.h
Dec 23 16:25:03 <lennert> grep for #ifdef CONFIG_ARCH_IXDP2X01
Dec 23 16:25:04 <beewoolie-afk> The smc91x driver is, more or less, a straightforward driver.
Dec 23 16:25:09 <lennert> (and try to keep your food in..)
Dec 23 16:25:12 * beewoolie-afk starts grepping.
Dec 23 16:25:40 <lennert> note that this code gets run on _every_ I/O access on these platforms
Dec 23 16:25:48 <beewoolie-afk> Oh good god NO!!!!!
Dec 23 16:25:53 <lennert> mu ha ha ha ha
Dec 23 16:26:02 * lennert whistles
Dec 23 16:26:07 <beewoolie-afk> BAD BAD is should burn in a pit of lead.
Dec 23 16:26:13 <lennert> yup
Dec 23 16:26:14 <beewoolie-afk> ACK  MY EYES
Dec 23 16:26:18 <lennert> lol
Dec 23 16:26:20 <lennert> hahaha
Dec 23 16:26:23 <beewoolie-afk> OK.  That is inexcusable
Dec 23 16:26:26 <lennert> yeah
Dec 23 16:26:31 <lennert> it was either that or hack cs8900 even further
Dec 23 16:26:52 <beewoolie-afk> If I have a board, I'll take a look at writing some new code for it.
Dec 23 16:26:53 <lennert> http://ixp2xxx.sourceforge.net/cs89x0/ tries to clean it up
Dec 23 16:27:02 <lennert> and it moves the ixdp-specific stuff into cs89x0 itself
Dec 23 16:27:08 <beewoolie-afk> It should be a generic driver, like the smc91x.
Dec 23 16:27:13 <lennert> but it didn't get accepted upstream
Dec 23 16:27:34 <beewoolie-afk> Sounds like a proprietary issue.  IOW, someone wants to *own* it.
Dec 23 16:27:44 <beewoolie-afk> There have been several rewrites of bad drivers.
Dec 23 16:27:54 <lennert> it doesn't really have a maintainer, too
Dec 23 16:28:06 <lennert> i would maintain it if i had hardware
Dec 23 16:28:10 <lennert> but i don't
Dec 23 16:28:15 <lennert> and i need to bug deepak to check stuff for me
Dec 23 16:28:35 <beewoolie-afk> As is usually the case, especially for embedded stuff.
Dec 23 16:28:42 <lennert> jeff garzik just applies reasonable patcges
Dec 23 16:28:54 <lennert> mine probably looked too big
Dec 23 16:29:01 <lennert> and noone acked it
Dec 23 16:29:06 <lennert> yeah
Dec 23 16:29:16 <beewoolie-afk> Sometimes it takes some persistence.
Dec 23 16:29:26 <lennert> true
Dec 23 16:29:27 <beewoolie-afk> That is, sometimes it takes more than is reasonable.
Dec 23 16:29:36 <beewoolie-afk> But, that's how these things seem to work.
Dec 23 16:29:45 <lennert> but if i'm going to put effort into it anyway.. i might as well rewrite it as a platform device
Dec 23 16:29:54 <lennert> and be its maintainer
Dec 23 16:30:02 <beewoolie-afk> Right.
Dec 23 16:30:05 <lennert> (or someone else)
Dec 23 16:30:23 <beewoolie-afk> I have the data sheet somewhere...
Dec 23 16:30:34 <lennert> AOL
Dec 23 16:31:25 <beewoolie-afk> Yep, it's right here.
Dec 23 16:31:34 <beewoolie-afk> America OnLine?
Dec 23 16:31:43 <lennert> AOL = "Me too!"
Dec 23 16:32:11 <lennert> i.e. i have the datasheet somewhere too
Dec 23 16:32:41 <beewoolie-afk> Yeah.  I'll give it a read.  usually, I start with a driver for APEX and work from that.
Dec 23 16:36:24 <beewoolie-afk> I remember this chip.  I had a problem with one where the eeprom wasn' t properly programmed.
Dec 23 16:37:23 <lennert> eep! rom
Dec 24 02:37:48 <vmaster_> lennert: avnet registration works if you replace the https:// with http://
**** ENDING LOGGING AT Sat Dec 24 02:59:57 2005