**** BEGIN LOGGING AT Thu Apr 05 02:59:56 2007
Apr 05 07:52:43 <aproemel> good morning
Apr 05 07:53:02 <aproemel> drath_: do you have 5 minutes ?
Apr 05 11:41:33 <aproemel> drath: are you there ?
Apr 05 11:42:50 <drath> hey aproemel 
Apr 05 11:42:58 <aproemel> hi :-)
Apr 05 11:43:22 <aproemel> I've got real trouble with my flash, i can write every half word alinged address
Apr 05 11:43:46 <aproemel> but the others wont work :-(
Apr 05 11:46:11 <drath> is your flash 8 or 16 bits wide?
Apr 05 11:46:16 <aproemel> 16
Apr 05 11:46:33 <aproemel> M29W128FL, 16bit Databus #BYTE is connected to VCC
Apr 05 11:46:53 <aproemel> A0 (Flash) A1(AT91) like figure 18-8 on AT91 Datasheet
Apr 05 11:49:30 <aproemel> i'm writing with this command
Apr 05 11:49:44 <aproemel> str r1, [r3,r0,lsl #1]
Apr 05 11:49:58 <aproemel> r1 data, r3 BASE_FLASH_ADDRESS, r0 Offset
Apr 05 11:51:40 <drath> you said "i can write every half word alinged address" - and what doesn't work?
Apr 05 11:52:08 <aproemel> example
Apr 05 11:52:13 <drath> using a str is probably not a good idea - i guess the AT91 translates that to two writes on the 16-bit bus
Apr 05 11:52:22 <aproemel> write to adress 0x00 the value 0x00 and to address 0x02 the value 0x02
Apr 05 11:52:29 <aproemel> and take a look to openOCD
Apr 05 11:52:37 <aproemel> 0xffff0000 0xffff0002
Apr 05 11:53:00 <aproemel> strh won't work, compile error :-(
Apr 05 11:53:23 <drath> did you configure the chipselect for 16-bit?
Apr 05 11:53:43 <aproemel> SMC_CS0 Register 0x00003288
Apr 05 11:53:50 <aproemel> 16 bit CS, 1 16bit device
Apr 05 11:54:04 <aproemel> BAT = 1, DBW 01b
Apr 05 11:56:15 <drath> ok, you definitely have to use strh for your 16-bit bus
Apr 05 11:56:52 <aproemel> if i use asm("strh r1, [r3,r0, lsl #1]");
Apr 05 11:56:59 <aproemel> i get missing ']'
Apr 05 11:57:20 <aproemel> wrote the write functions in inline asm
Apr 05 11:58:21 <drath> strh uses a different addressing mode
Apr 05 11:59:07 <drath> check the ARM ARM for valid addressing modes (page 250 in the PDF)
Apr 05 12:00:30 <aproemel> mhh, well on page 194 the STRH seems to be equal with the STR
Apr 05 12:00:38 <aproemel> but there i can see the difference
Apr 05 12:01:03 <drath> it uses Addressing mode 3, misc load/stores
Apr 05 12:01:44 <aproemel> yes, and STR mode 2
Apr 05 12:02:10 <aproemel> omg, and i'm searching everywhere, but not at the adressing modes
Apr 05 12:02:45 <drath> heh, yeah, i learned about the differences when i wrote the disassembler code for the openocd
Apr 05 12:03:14 <aproemel> I'll hope i get it work today, so then i can take my board home to get uboot working
Apr 05 12:03:19 <aproemel> 3 weeks to go :-(
Apr 05 12:09:48 <aproemel> drath: now i cant compile it :-)
Apr 05 12:15:19 <aproemel> drath: works now, thanks a lot
Apr 05 12:19:28 <drath> you're welcome
Apr 05 12:19:50 <aproemel> :-)
Apr 05 13:16:58 <aproemel> drath: uboot works i think
Apr 05 13:19:31 <drath> cool
Apr 05 13:20:33 <aproemel> but not the flash :-(
Apr 05 13:20:39 <aproemel> but it boots
Apr 05 13:20:43 <aproemel> and serial works
Apr 05 13:20:57 <aproemel> so I'm sure that my loader works correctly
Apr 05 13:24:03 <drath> what's wrong with the flash?
Apr 05 13:25:30 <aproemel> i don't know atm :-(
Apr 05 13:25:59 <aproemel> should use CFI Driver, and take a look to another board which uses it
Apr 05 13:26:09 <aproemel> I think i have missconfigured it
Apr 05 13:47:38 <aproemel> drath: but my luck is, i can take my board home, and don't need any oszi :-)
Apr 05 17:26:15 <aproemel> drath: are you still there ?
Apr 05 18:34:23 <pogo1231735> Hi! I'm looking for information on how to flash an IXP425 board using OpenOCD. Can anybody help?
Apr 05 18:35:41 <drath> basically it should work, but the XScale stuff isn't tested very well
Apr 05 18:37:11 <pogo1231735> Trouble is, I don't know how to access the flash. I don't which flash driver I have to use in the .cfg file. I can use OpenOCD for debugging without problems.
Apr 05 18:49:02 <drath> what type of flash is on your board?
Apr 05 19:02:17 <pogo1231735> The flash chips are Intel 28F128J3D75.
Apr 05 19:04:04 <drath> the cfi driver supports the intel chips
Apr 05 19:04:17 <drath> flash bank cfi 0x60000000 0x1000000 2 2 0
Apr 05 19:04:52 <drath> this defines a flash bank of 16mb size at address 0x6000000 with 16-bit bus and chip width (i.e. a single 16-bit chip)
Apr 05 19:10:53 <pogo1231735> Ok, I've got to such chips, so I assume I've got 32 MB flash. That would make 0x2000000, but what about the bus and chip width?
Apr 05 19:11:08 <pogo1231735> s/to such/two such/
Apr 05 19:11:09 <purl> pogo1231735 meant: Ok, I've got two such chips, so I assume I've got 32 MB flash. That would make 0x2000000, but what about the bus and chip width?
Apr 05 19:18:53 <drath_> i guess the chips are connected in parallel to form a 32-bit bus
Apr 05 19:22:05 <pogo1231735> That's bus_width = 4, right?
Apr 05 19:24:49 <pogo1231735> Hm, still no luck with
Apr 05 19:24:50 <pogo1231735> flash bank cfi 0x50000000 0x1000000 2 4 0
Apr 05 19:25:23 <pogo1231735> 0x50000000 is the address that Redboot reports.
Apr 05 19:41:21 <pogo1231735> I've got no luck, whatever address I try. Maybe OpenOCD doesn't support XScale well enough. I'll try again tomorrow. Thanks for your help, drath!
**** ENDING LOGGING AT Fri Apr 06 03:00:00 2007