May 2003 - U-Boot

Re: [U-Boot-Users] what means this symbol "@"?
by Jerry Van Baren 08 May '03

08 May '03

@h = high order 16 bits @l = low order 16 bits @ha = high order 16 bits adjusted so that, when you add the sign-extended low order 16 bits, the value comes out to the right number Example of @ha: lis r3, 0x0000FFFF@ha /* r3 = 0x0001oooo */ addi r3, r3, 0x0000FFFF@l /* r3 = 0x0001oooo + 0xffffFFFF = 0x0000FFFF */ will actually load 0x00010000 into r3 in the first instruction because the second instruction (addi) sign-extends the 0x0000FFFF to become 0xFFFFFFFF. After the addi, r3 will have the proper value 0x0000FFFF. ori does not sign extend the immediate value, so it does not have this quirk and therefore you would use @h and @l: lis r3, 0x0000FFFF@h /* r3 = 0x00000000 */ ori r3, r3, 0x0000FFFF@l /* r3 = 0x0000oooo | 0xooooFFFF = 0x0000FFFF */ I've never figured out why someone would want to use addi instead of ori in the second instruction of the load sequence. gvb At 11:32 AM 5/8/2003 -0400, okisoftxman(a)hotmail.com wrote: >In u-boot/cpu/mpc8xx/start.S,I usually find this symbol "@",such as >followed: > >_start: > lis r3, CFG_IMMR@h /* position IMMR */ > mtspr 638, r3 > li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ > b boot_cold > >what does it means? Thank you! ********************************************************************** This e-mail and any files transmitted with it may be confidential and may be legally privileged or otherwise exempt from disclosure under applicable law. This e-mail and its files are intended solely for the individual or entity to whom they are addressed and their content is the property of Smiths Aerospace. If you are not the intended recipient, please do not read, copy, use or disclose this communication. If you have received this e-mail in error please notify the e-mail administrator at postmaster(a)smiths-aerospace.com and then delete this e-mail, its files and any copies. This footnote also confirms that this e-mail message has been scanned for the presence of known computer viruses. Smiths addresses are changing! The new addresses are of the form firstname.lastname(a)smiths-aerospace.com. Please update your address books! Please begin using the new form immediately. ***********************************************************************

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Re: [U-Boot-Users] what means this symbol "@"?
by seaman 08 May '03

08 May '03

Thank you!Now I understand it. lis r1,value =addis r1,0,value ----- Original Message ----- From: "Udi Finkelstein" <udif(a)bigfoot.com> To: "seaman" <okisoftxman(a)hotmail.com> Sent: Thursday, May 08, 2003 4:42 PM Subject: Re: [U-Boot-Users] what means this symbol "@"? > My guess is that "@h" means a 16-bit constant made of the upper 16-bot > of CFG_IMMR. > > It took me a lot of time to find what "lis" is. I couldn't find it in > either the IBM arch. manual I had, or the MPC823 manual. > Only after I looked at the obcode, I found that this is actually > something like a private case of the add immediate instruction or > something like that, where the 1st argument is a constant 0. > This means that lis loads a register by taking a 16-bit constant and > putting it in the upper 16-bit, and resetting the lower 16-bit (because > that's 0 + arg<<16). > Since CFG_IMMR is on a 64KB boundary, its lower 16 bitare zero, so "lis > r3,CFG_IMMR@h" simply loads CFG_IMMR to r3. > > Udi > > seaman wrote: > > In u-boot/cpu/mpc8xx/start.S,I usually find this symbol "@",such as > > followed: > > > > _start: > > lis r3, CFG_IMMR@h /* position IMMR */ > > mtspr 638, r3 > > li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ > > b boot_cold > > > > what does it means? Thank you! > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------- > > Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara > > The only event dedicated to issues related to Linux enterprise solutions > > www.enterpriselinuxforum.com > > > > _______________________________________________ > > U-Boot-Users mailing list > > U-Boot-Users(a)lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/u-boot-users > > > >

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[U-Boot-Users] what means this symbol "@"?
by seaman 08 May '03

08 May '03

In u-boot/cpu/mpc8xx/start.S,I usually find this symbol "@",such as followed: _start: lis r3, CFG_IMMR@h /* position IMMR */ mtspr 638, r3 li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */ b boot_cold what does it means? Thank you!

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[U-Boot-Users] ELF File info forward / backward
by Roel Loeffen 07 May '03

07 May '03

Hello, I've build my ELF file on a SuSe Linux system. When I view the binairy data of the .elf file, all paths are like: /ppc_sdev/u-boot/main.c But my debugger environment (CodeWarrior 6.5) runs on a Windows2000 machine. Which paths are oriented like: \ppc_sdev\u-boot\main.c Can this be the reason why my Debugger environment cannot find the source files? Error: Can't find file, no full path specified.. Roel ---------------------------- Prodrive B.V. Postbus 28030 5602 JA Eindhoven The Netherlands ---------------------------- Science Park Eindhoven Ekkersrijt 5025 5692 EB Son ---------------------------- tel. +31 40 2676200 direct: +31 40 2676242 fax +31 40 2676220 ----------------------------

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RE: [U-Boot-Users] StrataFlash CFI Mode Hang?
by Brad Kemp 06 May '03

06 May '03

Tom, Make sure all your code and data has been relocated. When reading the CFI information, flash is in an unusable state. Brad > -----Original Message----- > From: Tom Guilliams [mailto:tguilliams@sbs.com] > Sent: Monday, May 05, 2003 6:29 PM > To: u-boot-users(a)lists.sourceforge.net > Subject: [U-Boot-Users] StrataFlash CFI Mode Hang? > > > I've ported the PPMC8260 strataflash.c driver to my board's E28F128J3A > chip and was wondering if anyone's ever seen this - > > As soon as the driver puts the chip in CFI mode (by writing 0x98 to > offset 0x55 for 8-bit mode), something goes bad and my board freezes. > This happens every time. I know that's vague but I'm still debugging > what's really going on. It looks like some interrupt issue but I've > disabled interrupts and it didn't help. The chip has a > 16-bit portwidth > but has been set in 8-bit mode and is on an 8-bit bus (Galileo asynch > bus). > > If I fill in the CFI info manual and skip the command to set > the chip in > CFI mode, everything's fine. It seems to be just when we > issue the CFI > mode command. I've been checking the CFI spec and nothing's clued me > in. Anyone else seen this? When flash_init() gets called, we're > already running from RAM. Just wondering, time to set up the BDI. > > Tom > > > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users >

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RE: [U-Boot-Users] mx1ads port, cpu/arm920t rearrangement
by Ruhland, Paul 06 May '03

06 May '03

roger that. -----Original Message----- From: Wolfgang Denk [mailto:wd@denx.de] Sent: Tuesday, May 06, 2003 3:08 AM To: Paul Ruhland Cc: u-boot-users(a)lists.sourceforge.net Subject: Re: [U-Boot-Users] mx1ads port, cpu/arm920t rearrangement In message <200305052045.39080.pruhland(a)rochester.rr.com> you wrote: > > Mayhap another directory structure at the 'cpu/arm920t' level is needed? For > instance soc directories such as 'soc-s3c2400', 'soc-mc9328mx1', etc. At the moment I don't see the need for new directories. > Perhaps just the names without the soc prefix. Then name isn't is important. > Or we could just #def the existing files, but that could get ugly quick as/if > more socs are supported. > > What is the opinion of those concerned regarding this? Maybe adding a prefix to the files (s3c24xx-interrupt.c etc) would do for now? Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd(a)denx.de The trouble with our times is that the future is not what it used to be. - Paul Valery ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

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[U-Boot-Users] [RFD] move memsetup.S to CPU directory
by Robert Schwebel 06 May '03

06 May '03

Hi, I would like to propose that we move the memsetup.S code from the board directories for the Innokom and CSB226 (soon also Gealog) plattform to the cpu/xscale directory. - the code is absolutely generic, can be configured via CFG_ values - it has been cleaned up - I see no reason why it should not work on every PXA250 plattform - it would avoid code quadruplication ;) - the other board maintainers probably had to test it Comments? Shall I submit a patch? Robert -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Braunschweiger Str. 79, 31134 Hildesheim, Germany Handelsregister: Amtsgericht Hildesheim, HRA 2686 Phone: +49-5121-28619-0 | Fax: +49-5121-28619-4

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[U-Boot-Users] mx1ads port, cpu/arm920t rearrangement
by Paul Ruhland 06 May '03

06 May '03

I'm currently doing a port for the Motorola m9328mx1ads board. It uses their mc9328mx1 (dragonball) system on a chip (soc) processor, with an arm920t core. U-boot is up and running, flash, ethernet, serial all working. Now trying to get a kernel to boot. The current 'cpu/arm920t' processor specific directory is currently soc specific. Files such as 'interrupts.c' (the timer stuff), 'speed.c', and 'serial.c' are only for Samsung s3c2400x and s3c2410x socs. Mayhap another directory structure at the 'cpu/arm920t' level is needed? For instance soc directories such as 'soc-s3c2400', 'soc-mc9328mx1', etc. Perhaps just the names without the soc prefix. Then name isn't is important. Or we could just #def the existing files, but that could get ugly quick as/if more socs are supported. What is the opinion of those concerned regarding this? -- Paul Ruhland

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[U-Boot-Users] StrataFlash CFI Mode Hang?
by Tom Guilliams 06 May '03

06 May '03

I've ported the PPMC8260 strataflash.c driver to my board's E28F128J3A chip and was wondering if anyone's ever seen this - As soon as the driver puts the chip in CFI mode (by writing 0x98 to offset 0x55 for 8-bit mode), something goes bad and my board freezes. This happens every time. I know that's vague but I'm still debugging what's really going on. It looks like some interrupt issue but I've disabled interrupts and it didn't help. The chip has a 16-bit portwidth but has been set in 8-bit mode and is on an 8-bit bus (Galileo asynch bus). If I fill in the CFI info manual and skip the command to set the chip in CFI mode, everything's fine. It seems to be just when we issue the CFI mode command. I've been checking the CFI spec and nothing's clued me in. Anyone else seen this? When flash_init() gets called, we're already running from RAM. Just wondering, time to set up the BDI. Tom

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[U-Boot-Users] Start vector? Debug
by Roel Loeffen 05 May '03

05 May '03

Hello, I'm still trying to debug the u-boot using Metrowerks CodeWarrior 6.5. I've programmed the BIN file into flash. I use the ELF file to debug. I can view the code in flash and step, but the debugger only shows me the assembly code. When I connect to the PPC a warning message is displayed: - Cannot detect start vector point, program will continue running... - I can change the start vector in a preferences window, default it says: _start What is the start vector mnemonic for u-boot?? Thx Roel

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RE: [U-Boot-Users] astest.c: 'true' undeclared
by Ruhland, Paul 02 May '03

02 May '03

Mark, The answer lies in the top level 'config.mk'. Look for the definition of 'BFD_ROOT_DIR' and adjust according to your cross compiler. -----Original Message----- From: Jonas Mark-r50740 [mailto:Mark.Jonas@motorola.com] Sent: Friday, May 02, 2003 9:35 AM To: u-boot-users(a)lists.sourceforge.net Subject: [U-Boot-Users] astest.c: 'true' undeclared Hello, I have problems compiling U-Boot. My problem is that astest.c does not compile but throws the error message "'true' undeclared" in line 84. My development system is Debian Woody with a self-built powerpc-linux gcc 2.95.3. I saw in the archive that Anders had the same problem 2003-04-28 but there was no answer. If I do my own "#define true 1" everything compiles just fine. Where should the definition of 'true' come from? I'm targeting the Motorola MGT5200 processor (603ei core). Is anybody else working on this? Maybe MGT5100 or MPC4200? TIA Mark ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

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[U-Boot-Users] astest.c: 'true' undeclared
by Jonas Mark-r50740 02 May '03

02 May '03

Hello, I have problems compiling U-Boot. My problem is that astest.c does not compile but throws the error message "'true' undeclared" in line 84. My development system is Debian Woody with a self-built powerpc-linux gcc 2.95.3. I saw in the archive that Anders had the same problem 2003-04-28 but there was no answer. If I do my own "#define true 1" everything compiles just fine. Where should the definition of 'true' come from? I'm targeting the Motorola MGT5200 processor (603ei core). Is anybody else working on this? Maybe MGT5100 or MPC4200? TIA Mark

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[U-Boot-Users] MPCFADS860T -- any active uboot developers?
by Nye Liu 01 May '03

01 May '03

I have u-boot up and running on a MPC860T-FADS eval board, but it is extremely unstable... are there active FADS developers using this board currently? Also, Wolfgang, I have one or two minor patches for this board, but I'm not sure if the differences are intentional. One of the patches adds a FLASH_ internal define to flash.h; last time I did this (in ppc-boot) you indicated not to add any more of those.. what is the policy for adding those in u-boot? -- Nye Liu nliu(a)mrv.com (818) 772-6235x248 "Who would be stupid enough to quote a fictitious character?" -- Don Quixote

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RE: [U-Boot-Users] AMD MirrorBit FLASH Support?
by Brad Kemp 01 May '03

01 May '03

Tien After looking closer at your application, you will need to add support for 64 bits flash. Search the code for FLASH_CFI_32BIT. It is mostly used in case statements. Add the appropriate code for FLASH_CFI_64BIT. There is one loop that loop you will need to change The FLASH_CFI_32BIT to FLASH_CFI_64BIT. Also the cfiword_t and cfiptr_t unions will need the addition of long longs. Brad > -----Original Message----- > From: Nghiem, Tien [mailto:TNghiem@oerlikon.ca] > Sent: Wednesday, April 30, 2003 6:08 PM > To: Brad Kemp > Cc: u-boot-users(a)lists.sourceforge.net > Subject: RE: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > Hi Brad, > > I have a custom board MPC8260 that uses the flash width 64 > bits with 4 chips (28F640J3) as it describes in the > application note Intel 292263-002. Do you think that I can > use the flash driver ppmc8260/strataflash.c directly without > modification? > > Thank you > > Tien Nghiem > > -----Original Message----- > From: Brad Kemp [mailto:Brad.Kemp@Seranoa.com] > Sent: Friday, April 25, 2003 11:01 AM > To: tguilliams(a)sbs.com; Frederic Soulier > Cc: u-boot-users(a)lists.sourceforge.net > Subject: RE: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > There is CFI support for the Intel command set in > ppmc8260/strataflash.c > and esd/cpic440/strataflash.c. > This driver correctly sizes the flash width and number of chips. > What is missing is an abstraction to support multiple command sets. > Brad > > > > -----Original Message----- > > From: Tom Guilliams [mailto:tguilliams@sbs.com] > > Sent: Thursday, April 24, 2003 4:38 PM > > To: Frederic Soulier > > Cc: u-boot-users(a)lists.sourceforge.net > > Subject: Re: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > > > > > > Thanks for the reply Frederic. > > > > On Tue, 2003-04-22 at 01:12, Frederic Soulier wrote: > > > If you want full support for Mirrorbit flashes in U-Boot, > > you have simply to > > > code the write buffering feature. > > > I do not use this, so standard AMD/Fujitsu/ST code is > > working fine for me. > > > > > > > We're finding a bit more to it than that. The algorithms for > > operations > > on the MirrorBit have changed a bit from other AMD chips. Some > > operations rely upon toggle bits, different command > definitions. The > > "correct" error-checking is what's really effected. I was > porting the > > StrataFlash driver for the PPMC8260 board because we have > > some versions > > of our board with StrataFlash and some AMD MirrorBit as well as the > > driver implements the CFI interface. > > > > My plan is to have a strataflash/mirrorbit driver with > buffer writing > > support. I just need to finish it up and submit it to > > Wolfgang. As our > > board support grows, I'm adding upon this driver for other chipset > > support. At some point, it would be nice to have a flash > driver with > > CFI for all chips that support it. > > > > Tom > > > > > > > > ------------------------------------------------------- > > This sf.net email is sponsored by:ThinkGeek > > Welcome to geek heaven. > > http://thinkgeek.com/sf > > _______________________________________________ > > U-Boot-Users mailing list > > U-Boot-Users(a)lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/u-boot-users > > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users >

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RE: [U-Boot-Users] AMD MirrorBit FLASH Support?
by Brad Kemp 01 May '03

01 May '03

Tien I have used this driver on 2 other boards with strataflash The boards have different flash widths. The only application specific part is the location of the uboot environment. The config for the ppmc8260 may not fall on a sector boundary or be wrong. If the saveenv fails, check that. Brad > -----Original Message----- > From: Nghiem, Tien [mailto:TNghiem@oerlikon.ca] > Sent: Wednesday, April 30, 2003 6:08 PM > To: Brad Kemp > Cc: u-boot-users(a)lists.sourceforge.net > Subject: RE: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > Hi Brad, > > I have a custom board MPC8260 that uses the flash width 64 > bits with 4 chips (28F640J3) as it describes in the > application note Intel 292263-002. Do you think that I can > use the flash driver ppmc8260/strataflash.c directly without > modification? > > Thank you > > Tien Nghiem > > -----Original Message----- > From: Brad Kemp [mailto:Brad.Kemp@Seranoa.com] > Sent: Friday, April 25, 2003 11:01 AM > To: tguilliams(a)sbs.com; Frederic Soulier > Cc: u-boot-users(a)lists.sourceforge.net > Subject: RE: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > There is CFI support for the Intel command set in > ppmc8260/strataflash.c > and esd/cpic440/strataflash.c. > This driver correctly sizes the flash width and number of chips. > What is missing is an abstraction to support multiple command sets. > Brad > > > > -----Original Message----- > > From: Tom Guilliams [mailto:tguilliams@sbs.com] > > Sent: Thursday, April 24, 2003 4:38 PM > > To: Frederic Soulier > > Cc: u-boot-users(a)lists.sourceforge.net > > Subject: Re: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > > > > > > Thanks for the reply Frederic. > > > > On Tue, 2003-04-22 at 01:12, Frederic Soulier wrote: > > > If you want full support for Mirrorbit flashes in U-Boot, > > you have simply to > > > code the write buffering feature. > > > I do not use this, so standard AMD/Fujitsu/ST code is > > working fine for me. > > > > > > > We're finding a bit more to it than that. The algorithms for > > operations > > on the MirrorBit have changed a bit from other AMD chips. Some > > operations rely upon toggle bits, different command > definitions. The > > "correct" error-checking is what's really effected. I was > porting the > > StrataFlash driver for the PPMC8260 board because we have > > some versions > > of our board with StrataFlash and some AMD MirrorBit as well as the > > driver implements the CFI interface. > > > > My plan is to have a strataflash/mirrorbit driver with > buffer writing > > support. I just need to finish it up and submit it to > > Wolfgang. As our > > board support grows, I'm adding upon this driver for other chipset > > support. At some point, it would be nice to have a flash > driver with > > CFI for all chips that support it. > > > > Tom > > > > > > > > ------------------------------------------------------- > > This sf.net email is sponsored by:ThinkGeek > > Welcome to geek heaven. > > http://thinkgeek.com/sf > > _______________________________________________ > > U-Boot-Users mailing list > > U-Boot-Users(a)lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/u-boot-users > > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users >

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RE: [U-Boot-Users] AMD MirrorBit FLASH Support?
by Nghiem, Tien 01 May '03

01 May '03

Hi Brad, I have a custom board MPC8260 that uses the flash width 64 bits with 4 chips (28F640J3) as it describes in the application note Intel 292263-002 (http://www.intel.com/design/flcomp/applnots/29226302.pdf). Do you think that I can use the flash driver ppmc8260/strataflash.c directly without modification? Thank you Tien Nghiem -----Original Message----- From: Brad Kemp [mailto:Brad.Kemp@Seranoa.com] Sent: Friday, April 25, 2003 11:01 AM To: tguilliams(a)sbs.com; Frederic Soulier Cc: u-boot-users(a)lists.sourceforge.net Subject: RE: [U-Boot-Users] AMD MirrorBit FLASH Support? There is CFI support for the Intel command set in ppmc8260/strataflash.c and esd/cpic440/strataflash.c. This driver correctly sizes the flash width and number of chips. What is missing is an abstraction to support multiple command sets. Brad > -----Original Message----- > From: Tom Guilliams [mailto:tguilliams@sbs.com] > Sent: Thursday, April 24, 2003 4:38 PM > To: Frederic Soulier > Cc: u-boot-users(a)lists.sourceforge.net > Subject: Re: [U-Boot-Users] AMD MirrorBit FLASH Support? > > > > Thanks for the reply Frederic. > > On Tue, 2003-04-22 at 01:12, Frederic Soulier wrote: > > If you want full support for Mirrorbit flashes in U-Boot, > you have simply to > > code the write buffering feature. > > I do not use this, so standard AMD/Fujitsu/ST code is > working fine for me. > > > > We're finding a bit more to it than that. The algorithms for > operations > on the MirrorBit have changed a bit from other AMD chips. Some > operations rely upon toggle bits, different command definitions. The > "correct" error-checking is what's really effected. I was porting the > StrataFlash driver for the PPMC8260 board because we have > some versions > of our board with StrataFlash and some AMD MirrorBit as well as the > driver implements the CFI interface. > > My plan is to have a strataflash/mirrorbit driver with buffer writing > support. I just need to finish it up and submit it to > Wolfgang. As our > board support grows, I'm adding upon this driver for other chipset > support. At some point, it would be nice to have a flash driver with > CFI for all chips that support it. > > Tom > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users > ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ U-Boot-Users mailing list U-Boot-Users(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users

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[U-Boot-Users] CodeWarrior U-Boot debug
by Roel Loeffen 01 May '03

01 May '03

Hello, Has anyone of you ever used MetroWerks CodeWarrior to debug U-Boot? After I've succesfuly compiled the u-boot ELF and binairy I've programmed my flash with the binairy. Next, I've made a CodeWarrior project using the ELF file output of the GNU Compiler. I can connect to the PPC and I can view memory, but when I break the running process, the cpu is always stuck at address 0x800 (floating point exception). Also I cannot view the code in CodeWarrior?? Can someone help me? Thx Roel

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