June 2006 - U-Boot

Re: [U-Boot-Users] [DNX#2006062242000019] [PATCH] load_elf_ima [...]
by U-Boot patch tracking system 22 Jun '06

22 Jun '06

Dear Mr. U. Boot, thank you for your contribution to the U-Boot project. Your e-mail was registered at our system under the ticket number [DNX#2006062242000019]. Your U-Boot support team Powered by OTRS (http://otrs.org/)

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Re: [U-Boot-Users] How to submit a U-Boot patch
by Wood, Jarrod Jay 21 Jun '06

21 Jun '06

Thank you all for your responses. I did indeed miss the specific patching section at the bottom of the README and instead was reading a section that only touched on the topic. I apologize for the oversight. The rest of my questions my questions were answered by Ben, and I will follow his procedure unless told otherwise. Again, thank you for your time. Regards, Jarrod Wood

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[U-Boot-Users] How to submit a U-Boot patch
by Jarrod Wood 21 Jun '06

21 Jun '06

Hello all, I have modified a function in the U-Boot source code and would like to contribute it back. However, I have never submitted a patch before and therefore unfamiliar with the process. I have read the README file which gives some details about verifying the patch works with all boards, but seems to lack details about where and how to create and submit the patch. I have modified the common/cmd_elf.c:load_elf_image function to support loading ELF images via reading the program headers instead of the section headers, which according to the TIS ELF standard is the correct method. This was modified due to errors loading various ELF images such as the INTEGRITY RTOS. In addition, the current version also does not check to see if the ELF headers will be overwritten when the program sections are extracted, resulting in a machine check when reading the next section. The modified version moves the ELF image out of the way. I believe these changes would be valuable to others and any information on how to submit these would be appreciated. Best Regards, Jarrod Wood Sandia National Laboratories

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Re: [U-Boot-Users] u-boot hangs in ./cpu/mpc8xx/cpu_init.c when changing br0
by Jeff Mann 21 Jun '06

21 Jun '06

>You did read http://www.denx.de/wiki/view/DULG/DebuggingTricks , didn't you? I did, but those compiler flags were in by board directory, I moved them to the makefile in the top directory, and this simplifies watching the code. But back to the problem. ./cpu/mpc8xx/cpu_init.c In "C": 118 reg = memctl->memc_br0; 119 reg &= BR_PS_MSK; /* Clear everything except Port Size bits */ 120 reg |= BR_V; /* then add just the "Bank Valid" bit */ 121 memctl->memc_br0 = reg; In Assembly, this compiles to: Ln 118 0xff007ce4 <cpu_init_f+172>: lwz r0,0(r28) Ln 119 0xff007ce8 <cpu_init_f+176>: rlwinm r0,r0,0,20,21 Ln 120 0xff007cec <cpu_init_f+180>: ori r0,r0,1 Ln 121 0xff007cf0 <cpu_init_f+184>: stw r0,0(r28) r28 holds the value 0xfa200100 (the location of br0) At line 118, br0 is loaded into r0. r0 then holds 0xfc000001. At line 119, r0 becomes 0x00000000. <<-- This is the problem, I think At line 120, r0 becomes 0x00000001 At line 121, r0 is saved to br0 (the address pointed to by r28). (br0 becomes 0x00000001) in ./include/mpc8xx.h: #define BR_PS_MSK 0x00000C00 Is this right? The program fails at ln 180 with: "Program received signal SIGABRT, aborted." But by this time, br0 was reloaded with CFG_BR0_PRELIM from line 176. Any more ideas? Thanks, JM -----Original Message----- From: wd(a)denx.de [mailto:wd@denx.de] Sent: Tuesday, June 20, 2006 5:53 PM To: Jeff Mann Cc: u-boot-users(a)lists.sourceforge.net Subject: Re: [U-Boot-Users] u-boot hangs in ./cpu/mpc8xx/cpu_init.c when changing br0 In message <1628E43D99629C46988BE46087A3FBB95C57DD(a)ep-01.EmbeddedPlanet.local> you wrote: > > reg does not get the value of br0 at line 118, like it should. In > fact, DDD acts like the variable does not even exist. So at line 121, > br0 is ... > Any suggestions? You did read http://www.denx.de/wiki/view/DULG/DebuggingTricks , didn't you? Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd(a)denx.de The light at the end of the tunnel is usually a "No Exit" sign.

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Re: [U-Boot-Users] [DNX#2006062142000101] [ [...]
by U-Boot patch tracking system 21 Jun '06

21 Jun '06

Dear Mr. U. Boot, thank you for your contribution to the U-Boot project. Your e-mail was registered at our system under the ticket number [DNX#2006062142000101]. Your U-Boot support team Powered by OTRS (http://otrs.org/)

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Re: [U-Boot-Users] [DNX#2006062142000101] [PATCH] 02-add-support-for-ps2-keyb [...]
by DENX Support System 21 Jun '06

21 Jun '06

Hello list, inside the automatic U-Boot patch tracking system a new ticket [DNX#2006062142000101] was created: <snip> > wd(a)denx.de wrote on Monday, June 19, 2006 2:25 AM: > > > This patch replaces the patch > > > add-support-for-ps2-keyboard-on-tqm8540-board.patch send to this > > > list on Thu 17. Nov 2005. > > > > > > Add support for PS/2 keyboard on TQM8540 board > > > Patch by Martin Krause, 02 Dez 2005 > > > > I applied (and tried to fix) the previous patch. Note that the > > board names have been changed since, so even your newer patch > > does not apply cleanly. Please check the code in the git repo > > and supply any required updates relative to the current code. > > Attached an updated patch: > > Fix support for PS/2 keyboard on TQM85xx boards > > The PS/2 keyobard driver for the TQM85xx modules only supports the > internal DUART of the MPC85xx CPU. Since the MPC8560 doesn't include a > DUART, the TQM8560 modules can't be used with the PS/2 keyboard > controller > on the STK85xx board. > > The PS/2 keyboard driver should work with the modules TQM8540, TQM8541 > and > TQM8555, but it only has been tested on a TQM8540, yet. > > Make sure the PS/2 controller on the STK85xx is programmed. Jumper > settings: X66 1-2, 9-10; X61 2-3 > > Signed-off-by: Martin.Krause <martin.krause(a)tqs.de> > > CHANGELOG: > > * Fix support for PS/2 keyboard on TQM85xx boards > Patch by Martin Krause, 21 Jun 2006 > > The PS/2 keyobard driver for the TQM85xx modules only supports the > internal DUART of the MPC85xx CPU. Since the MPC8560 doesn't include a > > DUART, the TQM8560 modules can't be used with the PS/2 keyboard > controller > on the STK85xx board. > > The PS/2 keyboard driver should work with the modules TQM8540, TQM8541 > and > TQM8555, but it only has been tested on a TQM8540, yet </snip> Your U-Boot support team

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Re: [U-Boot-Users] [DNX#2006062142000093] PATCH - Support for [...]
by U-Boot patch tracking system 21 Jun '06

21 Jun '06

Dear Mr. U. Boot, thank you for your contribution to the U-Boot project. Your e-mail was registered at our system under the ticket number [DNX#2006062142000093]. Your U-Boot support team Powered by OTRS (http://otrs.org/)

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Re: [U-Boot-Users] [DNX#2006062142000093] PATCH - Support for EP82xxM Boards
by DENX Support System 21 Jun '06

21 Jun '06

Hello list, inside the automatic U-Boot patch tracking system a new ticket [DNX#2006062142000093] was created: <snip> > Hi, > > The following patch allows support for Embedded Planet EP82xxM boards. > It has been tested on MPC8250, MPC8270 and MPC8280 populated boards with > 256MB SDRAM and 64MB FLASH. > > Regards, > Aaron Sells > > CHANGELOG: > * Added ep82xxm board directory and config file for Embedded Planet > EP82xxM board support </snip> Your U-Boot support team

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Re: [U-Boot-Users] [DNX#2006062142000084] [patch] adjust-rtc-c [...]
by U-Boot patch tracking system 21 Jun '06

21 Jun '06

Dear Mr. U. Boot, thank you for your contribution to the U-Boot project. Your e-mail was registered at our system under the ticket number [DNX#2006062142000084]. Your U-Boot support team Powered by OTRS (http://otrs.org/)

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Re: [U-Boot-Users] [DNX#2006062142000084] [patch] adjust-rtc-century-handling-on-stk52xx-boa [...]
by DENX Support System 21 Jun '06

21 Jun '06

Hello list, inside the automatic U-Boot patch tracking system a new ticket [DNX#2006062142000084] was created: <snip> > Adjust RTC century handling on STK52xx board to match with Linux driver. > Patch by Martin Krause, 12 Jun 2006 > > Signed-of-by: Martin Krause <martin.krause(a)tqs.de> > > > CHANGELOG: > > * Adjust RTC century handling on STK52xx board to match with Linux > driver. > Patch by Martin Krause, 12 Jun 2006 </snip> Your U-Boot support team

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