irclog2html for #openjtag on 20050609

`06:12.33`	`*** join/#openjtag jamie (~jamie@softmodem.org)`
`06:56.54`	`*** part/#openjtag dyoung (~dyoung@dyoung.nslu2-linux)`
`07:05.42`	`*** join/#openjtag dyoung (~dyoung@cpe-24-94-88-62.hawaii.res.rr.com)`
`10:25.43`	`*** join/#openjtag ep1220 (~NN@gate.epatec.at)`
`11:13.12`	`*** join/#openjtag [g2] (~g2@g2.nslu2-linux)`
`11:53.31`	`ep1220`	`[g2] I am now ready to load data into the I-cache. Hold_Reset works.`
`11:54.03`	`[g2]`	`EXCELLENT`
`11:54.07`	`[g2]`	`congrats`
`11:54.14`	`ep1220`	`thx`
`11:54.22`	`[g2]`	`I'm going to look at that right now`
`11:54.54`	`[g2]`	`it should only be some simple instructions to load immediate the values and then store them`
`11:55.42`	`ep1220`	`No need to setup an MMU ?`
`11:57.49`	`[g2]`	`nope not to start with from my simple understanding`
`11:58.21`	`ep1220`	`right, most likely disabled after reset`
`11:59.09`	`*** join/#openjtag rwhitby (~rwhitby@rwhitby.nslu2-linux)`
`11:59.17`	`[g2]`	`ep1220, I'm going to look APEX led blinking now`
`11:59.31`	`[g2]`	`rwhitby, welcome`
`12:00.27`	`ep1220`	`[g2] If Your time is tight: a hint at which source file to look might be enough help`
`12:02.26`	`[g2]`	`ep1220, we can look at it together`
`12:02.39`	`[g2]`	`your got the latest APEX 1.2.11 iirc ?`
`12:03.13`	`ep1220`	`I do have 1.2.9.`
`12:03.30`	`[g2]`	`the LED code is probably the same`
`12:03.49`	`[g2]`	`you'll want to pickup 1.2.11 when you want to run APEX`
`12:04.59`	`ep1220`	`just looking at the ftp`
`12:07.10`	`ep1220`	`1.2.12 is the latest version there`
`12:07.33`	`[g2]`	`I'd go with 1.2.11`
`12:07.44`	`[g2]`	`1.2.12 probably has test code for jffs2`
`12:08.08`	`[g2]`	`I haven't checked the readme but beewoolie was working on that last night`
`12:08.23`	`ep1220`	`the server says: max users already logged in`
`12:08.39`	`ep1220`	`let us see how far we get with 1.2.9 (?)`
`12:08.48`	`[g2]`	`next he'll be trying to load the kernel from within the jffs fs`
`12:08.55`	`[g2]`	`sure`
`12:09.16`	`[g2]`	`I'm looking at 1.2.11 I'm sure the ftp server will be free in a few minutes`
`12:09.38`	`ep1220`	`I am in, downloading now`
`12:10.42`	`ep1220`	`have 1.2.11 and 1.2.12`
`12:10.51`	`ep1220`	`we stick to 1.2.11 ?`
`12:10.52`	`[g2]`	`in 1.2.11`
`12:10.55`	`[g2]`	`nod`
`12:11.19`	`ep1220`	`i am rdy`
`12:11.53`	`[g2]`	`In src/mach-ixp42x/nslu2.h I think that where the LED macro is`
`12:12.28`	`ep1220`	`see this`
`12:13.58`	`[g2]`	`#define GPIO_PHYS (0xc8004000)`
`12:13.58`	`[g2]`	`#define GPIO_OUTR __REG(GPIO_PHYS + 0x00)`
`12:15.02`	`[g2]`	`I haven't coded ARM assembler yet, but I've coded lost of other assembers`
`12:16.47`	`ep1220`	`I think I have a starting point now. I'l grep for these consts and see how they are used.`
`12:17.07`	`ep1220`	`In case i get stuck I check if You only here :-)`
`12:17.50`	`ep1220`	`s/only/on-line/`
`12:18.42`	`[g2]`	`ok... I'll be looking up the instructions or seeing if an ARM assember guru jacques mentioned is in #oe`
`12:19.44`	`[g2]`	`ep1220, sorry I didn't have this ready`
`12:19.53`	`ep1220`	`nP`
`12:22.52`	`jacques`	`[g2], RP also knows arm assembler quite well I think`
`12:29.39`	`[g2]`	`jacques, THX`
`12:30.05`	`[g2]`	`I just whipped up the C function and I was going to dump the object`
`12:31.15`	`ep1220`	`Coming out of reset: is the ixp420 little or big endian ?`
`12:31.54`	`[g2]`	`ep1220, It reads the pull ups/down on the extention bus`
`12:32.05`	`[g2]`	`iirc there's a bit in there`
`12:32.14`	`[g2]`	`In our case I think that's set for BE`
`12:32.39`	`[g2]`	`Ok I think I've got the machine code`
`12:32.49`	`[g2]`	`but I'd need to verify the instructions`
`12:33.17`	`ep1220`	`You can look at the intermediary assembly file.`
`12:33.55`	`[g2]`	`nod.. I just need to change the compile options`
`12:36.36`	`ep1220`	`i will be back in 20 minutes`
`12:36.44`	`[g2]`	`ok`
`12:42.42`	`*** join/#openjtag VoodooZ_Work (~VoodooZ@CPE00c0f021712c-CM014110003785.cpe.net.cable.rogers.com)`
`12:57.37`	`[g2]`	`here's the C code:`
`12:57.40`	`[g2]`	`void __section (.bootstrap) led_flash (void) {`
`12:57.40`	`[g2]`	`<PROTECTED>`
`12:57.40`	`[g2]`	`<PROTECTED>`
`12:57.41`	`[g2]`	`<PROTECTED>`
`12:57.41`	`[g2]`	`<PROTECTED>`
`12:57.41`	`[g2]`	`<PROTECTED>`
`12:57.43`	`[g2]`	`<PROTECTED>`
`12:57.47`	`[g2]`	`}`
`12:58.17`	`[g2]`	`The assembler looks like`
`12:58.21`	`[g2]`	`<PROTECTED>`
`12:58.21`	`[g2]`	`<PROTECTED>`
`12:58.21`	`[g2]`	`<PROTECTED>`
`12:58.21`	`[g2]`	`led_flash:`
`12:58.21`	`[g2]`	`.LFB3:`
`12:58.22`	`[g2]`	`<PROTECTED>`
`12:58.24`	`[g2]`	`<PROTECTED>`
`12:58.26`	`[g2]`	`<PROTECTED>`
`12:58.28`	`[g2]`	`<PROTECTED>`
`12:58.30`	`[g2]`	`.LBB2:`
`12:58.32`	`[g2]`	`<PROTECTED>`
`12:58.34`	`[g2]`	`<PROTECTED>`
`12:58.36`	`[g2]`	`.LBE2:`
`12:58.38`	`[g2]`	`<PROTECTED>`
`12:58.40`	`[g2]`	`<PROTECTED>`
`12:58.42`	`[g2]`	`.LBB3:`
`12:58.44`	`[g2]`	`<PROTECTED>`
`12:58.48`	`[g2]`	`<PROTECTED>`
`12:58.50`	`[g2]`	`<PROTECTED>`
`12:58.52`	`[g2]`	`<PROTECTED>`
`12:58.54`	`[g2]`	`<PROTECTED>`
`12:58.56`	`[g2]`	`.LBE3:`
`12:58.58`	`[g2]`	`where L7 is`
`12:59.00`	`[g2]`	`<PROTECTED>`
`12:59.02`	`[g2]`	`.L7:`
`12:59.04`	`[g2]`	`<PROTECTED>`
`12:59.12`	`[g2]`	`or`
`12:59.19`	`[g2]`	`0xC8004000`
`12:59.53`	`[g2]`	`there are some other LED changes and then`
`13:00.10`	`[g2]`	`.LBB7:`
`13:00.10`	`[g2]`	`<PROTECTED>`
`13:00.10`	`[g2]`	`<PROTECTED>`
`13:00.11`	`[g2]`	`<PROTECTED>`
`13:00.11`	`[g2]`	`<PROTECTED>`
`13:00.11`	`[g2]`	`<PROTECTED>`
`13:00.13`	`[g2]`	`.L5:`
`13:00.15`	`[g2]`	`.LBE7:`
`13:00.19`	`[g2]`	`<PROTECTED>`
`13:00.21`	`[g2]`	`<PROTECTED>`
`13:00.25`	`[g2]`	`The "classic" loop forever :)`
`13:02.05`	`ep1220`	`just back.`
`13:02.05`	`ep1220`	`Thx.`
`13:02.24`	`[g2]`	`I think the ldr should be changed to an immediate load`
`13:02.30`	`ep1220`	`I beleive this code does not setup in/out directions of the GPIO pins (?)`
`13:03.23`	`[g2]`	`It may not, or it may be implicit in the register by the value that's getting written`
`13:03.36`	`[g2]`	`I haven't looked closely enough yet`
`13:03.52`	`ep1220`	`ixp has a separate reg for the direction.`
`13:04.47`	`ep1220`	`but i believe i can sort this out myself.`
`13:04.59`	`ep1220`	`do not want to distract You from regular work`
`13:05.31`	`[g2]`	`I'm trying to make this my "regular work" :)`
`13:06.14`	`ep1220`	`good idea :-)`
`13:06.46`	`[g2]`	`after I make it my "regular work" I'll try and do the same for others`
`13:07.44`	`[g2]`	`I'm very close to havin a development kit all ready`
`13:12.53`	`[g2]`	`GPIO_ER &= ~0xf; /* Enable LEDs as outputs */`
`13:13.31`	`[g2]`	`ixp42x.h:#define GPIO_ER __REG(GPIO_PHYS + 0x04)`
`13:15.28`	`ep1220`	`now only missing the inital value of GPIO_ER`
`13:15.45`	`ep1220`	`or i make all other pins inputs (?)`
`13:15.52`	`[g2]`	`&= just and it with 0xf`
`13:16.41`	`ep1220`	`i know, but the line does not tell me the value of the other bits.`
`13:17.18`	`[g2]`	`that's ~0xf`
`13:17.31`	`[g2]`	`so it's FFFFFFF0`
`13:18.12`	`ep1220`	`IMO: this clears the 4 LSBs and leaves the others unchanged.`
`13:18.22`	`[g2]`	`right`
`13:18.32`	`ep1220`	`so must haev been inited before.`
`13:18.57`	`[g2]`	`or the default value is output for our LEDs from the processor reset`
`13:20.07`	`ep1220`	`resetvalue of GPOER is 0x7FFF - all 15 are input`
`13:20.39`	`[g2]`	`and we are clearing the bottom 4 right ?`
`13:20.53`	`[g2]`	`GPIO 0 through 3 right`
`13:21.02`	`ep1220`	`right, GPIO15 is an output (driving a clock)`
`13:21.19`	`[g2]`	`well not yet :)`
`13:21.39`	`ep1220`	`It is an output rigth after reset`
`13:22.24`	`ep1220`	`http://www.nslu2-linux.org/wiki/Info/GPIOConnections tells all we need to know`
`13:23.24`	`[g2]`	`nod.`
`13:23.41`	`[g2]`	`I was looking in the kernel patches, but that tells the same story`
`13:23.42`	`[g2]`	`:)`
`13:23.59`	`ep1220`	`GPIO8 is interesting.`
`13:24.07`	`[g2]`	`that's the power off`
`13:24.16`	`ep1220`	`so better set to 0 ..`
`13:24.44`	`ep1220`	`else the test will not run long :-)`
`13:26.03`	`ep1220`	`good: GPOUTR is 0 at reset`
`13:26.28`	`[g2]`	`for the slug BitBanger we could grap GPIOs 0-4 it seems`
`13:29.55`	`ep1220`	`sorry, another IRQ; back in approx. 30 min`
`13:30.48`	`[g2]`	`np`
`14:11.38`	`ep1220`	`g2: ping`
`14:14.01`	`*** join/#openjtag JMunakra (~JMunakra@dsl-084-059-199-246.arcor-ip.net)`
`14:15.34`	`*** join/#openjtag rwhitby-away (~rwhitby@rwhitby.nslu2-linux)`
`14:22.13`	`[g2]`	`ep1220, pong`
`14:26.02`	`*** join/#openjtag prpplague (~billybob@72.22.142.204)`
`14:26.31`	`ep1220`	`any progress ?`
`14:26.59`	`[g2]`	`on the code ?`
`14:27.06`	`ep1220`	`yes.`
`14:27.22`	`ep1220`	`I wrote something, but have no ARM5Te/THUMB asm installed yet`
`14:27.46`	`[g2]`	`Ah...`
`14:28.26`	`ep1220`	`Do You know were I can download a precompiled gas ?`
`14:28.42`	`JMunakra`	`it's included with gcc`
`14:29.01`	`[g2]`	`ep1220, is it just one or two files ?`
`14:29.27`	`ep1220`	`1`
`14:29.46`	`[g2]`	`can you post it or e-mail it to me ?`
`14:31.48`	`[g2]`	`I've got the cross-tool armv5 built and can just assemble it`
`15:18.01`	`[g2]`	`ep1220, I'll send an e-mail to beewoolie to double check that output`
`15:18.23`	`[g2]`	`I'll also probably try loading via redboot`
`15:18.29`	`[g2]`	`and executing it`
`15:40.53`	`[g2]-away`	`off to lunch`
`17:15.19`	`*** join/#openjtag Jacmet (~jacmet@50C59F0E.flatrate.dk)`
`18:00.23`	`*** join/#openjtag prpplague (~billybob@72.22.142.204)`
`18:25.58`	`prpplague`	`~seen beewoolie`
`18:25.59`	`purl`	`beewoolie <~beewoolie@florence.buici.com> was last seen on IRC in channel #openjtag, 4d 1h 41m 55s ago, saying: 'jacques: ping.'.`
`18:26.24`	`prpplague`	`add`
`18:26.25`	`prpplague`	`odd`
`18:26.32`	`prpplague`	`beewoolie was here yesterday`
`18:43.49`	`dyoung`	`~seen beewoolie-afk`
`18:43.49`	`purl`	`beewoolie-afk <~beewoolie@florence.buici.com> was last seen on IRC in channel #openjtag, 14d 26m 46s ago, saying: 'prpplague: hey man'.`
`18:43.53`	`dyoung`	`~seen beewoolie-away`
`18:43.54`	`purl`	`beewoolie-away <~beewoolie@florence.buici.com> was last seen on IRC in channel #openjtag, 42d 13h 6m 12s ago, saying: 'ka6sox-away: what you guys got cookin?'.`
`20:04.26`	`[g2]-away`	`ep1220, I ran the program from Redboot`
`20:04.35`	`ep1220`	`and ?`
`20:04.39`	`[g2]-away`	`it didn't have the proper response`
`20:04.58`	`ep1220`	`it also did not work in the cache :-(`
`20:04.59`	`[g2]-away`	`I seems to run, but the all the LEDS go off`
`20:05.36`	`[g2]-away`	`then we are in a hard loop`
`20:06.03`	`[g2]-away`	`did the LEDs go off for you also ?`
`20:06.25`	`ep1220`	`Yes , but they also go off when I just assert reset`
`20:06.42`	`[g2]-away`	`ahh...`
`20:06.51`	`[g2]-away`	`we need to get them to come back on :)`
`20:07.02`	`ep1220`	`yea`
`20:07.56`	`ep1220`	`I just see: GPIO2 and 3 should be set to 0 for LEDs on !!`
`20:08.17`	`ep1220`	`GPIO0 and 1 are 1 for LED on`
`20:09.02`	`[g2]-away`	`So are mov could be a 0x0003 instead of 0x00c0 ?`
`20:09.10`	`[g2]-away`	`s/could/should`
`20:09.36`	`ep1220`	`this should turn on all 4 LEDs`
`20:10.42`	`[g2]-away`	`make that 0x1F03`
`20:11.32`	`ep1220`	`1F sets GPIO8 to 1 -> means power off`
`20:11.37`	`[g2]-away`	`no I take that back`
`20:12.16`	`[g2]-away`	`it should be 0x1E0F and 0x0003`
`20:12.19`	`[g2]-away`	`correct ?`
`20:12.59`	`*** join/#openjtag prpplague^2 (~billybob@72.22.136.163)`
`20:13.21`	`ep1220`	`looks better; do we have to set the inputs to 1 ? I think just 0x3 should suffice.`
`20:26.10`	`[g2]-away`	`ep1220, I'll have to look at it some more tonight`
`20:26.27`	`ep1220`	`OK.`
`20:26.33`	`[g2]-away`	`I'll be doing that later (5-6 hours from now)`
`20:26.47`	`[g2]-away`	`I'll send you an email with status`
`20:26.55`	`[g2]-away`	`after I finish`
`20:26.56`	`[g2]-away`	`Ok ?`
`20:27.08`	`ep1220`	`Very good. maybe also verify if the CPU starts at bigEndian.`
`20:27.19`	`[g2]-away`	`:)`
`20:28.00`	`ep1220`	`I saw in APEX entry.c a Switch to Big Endian (conditionally). Maybe we some instructions ..`
`22:16.36`	`*** join/#openjtag [g2] (~g2@g2.nslu2-linux)`

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