* Re: Booting Linux using a PlanetCore BootLoader [not found] <20041012003339.B1EB92BDDA@ozlabs.org> @ 2004-10-12 1:12 ` Sam Song 2004-10-12 21:02 ` annamaya 2004-10-12 1:36 ` linux 2.4.27 for 8xx? Sam Song 1 sibling, 1 reply; 28+ messages in thread From: Sam Song @ 2004-10-12 1:12 UTC (permalink / raw) To: annamaya, Tom Rini; +Cc: linuxppc-embedded annamaya <annamaya@yahoo.com> wrote: > now able to see the "relocation" messages by zImage > and it now halts with the message "Now booting the > kernel". I see that it is now hung in some delay [snip] > Linux/PPC load: root=/dev/nfs rw ip=on Well, I guess there is sth wrong in your parameter passing to kernel. Add "Console=ttyS0,9600" in it and try. ===== Best regards, Sam _________________________________________________________ Do You Yahoo!? 150万曲MP3疯狂搜，带您闯入音乐殿堂 http://music.yisou.com/ 美女明星应有尽有，搜遍美图、艳图和酷图 http://image.yisou.com 1G就是1000兆，雅虎电邮自助扩容！ http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/ ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-12 1:12 ` Booting Linux using a PlanetCore BootLoader Sam Song @ 2004-10-12 21:02 ` annamaya 2004-10-12 21:26 ` Dan Malek 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-12 21:02 UTC (permalink / raw) To: Sam Song, Tom Rini; +Cc: linuxppc-embedded [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain; charset=us-ascii, Size: 1536 bytes --] My problem had to do with the fact that I was not sending my flash device information in the bd_info structure and therefore, jffs2 was crapping out. Once I turned include this info in bd_info, the kernel came up just fine and started to boot. I am now trying to do an NFS mount of the root file system. Looks like the EP8280 uses LXT971A PHY device. I see that support for this device already exists in the driver. But I am not sure which GPIO lines are being used for MII_MDIO and MII_MDCK. I am also not sure about the PHY_INTERRUPT line. Does anyone have this info? Thanks much. --- Sam Song <samlinuxppc@yahoo.com.cn> wrote: > annamaya <annamaya@yahoo.com> wrote: > > now able to see the "relocation" messages by > zImage > > and it now halts with the message "Now booting the > > kernel". I see that it is now hung in some delay > [snip] > > Linux/PPC load: root=/dev/nfs rw ip=on > > Well, I guess there is sth wrong in your parameter > passing to kernel. Add "Console=ttyS0,9600" in it > and > try. > > > > > ===== > Best regards, > > Sam > > _________________________________________________________ > Do You Yahoo!? > 150ÍòÇúMP3·è¿ñËÑ£¬´øÄú´³ÈëÒôÀÖµîÌà > http://music.yisou.com/ > ÃÀÅ®Ã÷ÐÇÓ¦Óо¡ÓУ¬ËѱéÃÀͼ¡¢ÑÞͼºÍ¿áͼ > http://image.yisou.com > 1G¾ÍÊÇ1000Õ×£¬ÑÅ»¢µçÓÊ×ÔÖúÀ©ÈÝ£¡ > http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/ > __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-12 21:02 ` annamaya @ 2004-10-12 21:26 ` Dan Malek 2004-10-13 14:49 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Dan Malek @ 2004-10-12 21:26 UTC (permalink / raw) To: annamaya; +Cc: Sam Song, linuxppc-embedded On Oct 12, 2004, at 5:02 PM, annamaya wrote: > I am now trying to do an NFS mount of the root file > system. Looks like the EP8280 uses LXT971A PHY device. I have one of their first 8260 boards that I used to do the initial Linux port long ago. At that time, they had some weird CPLD implementation of MDIO that I could never get to work properly. Not a bad idea, just didn't seem to be implemented properly. I know they have done a second revision of this board, and I suspect the 8280 is just a glue into the same location design. With that board you should have received sufficient information to determine what to do, although they have always been quite secretive about releasing enough information to successfully write software. In the interim, just compile the driver without any MDIO control, hack the call to fcc_restart() at the end of init_fcc_startup() to just force half or full duplex (0 or 1) based upon the switch you are using. Good Luck. -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-12 21:26 ` Dan Malek @ 2004-10-13 14:49 ` annamaya 2004-10-13 16:07 ` Dan Malek 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-13 14:49 UTC (permalink / raw) To: Dan Malek; +Cc: Sam Song, linuxppc-embedded Thanks for the reply Dan. Just before I got your mail, I was going through the fcc ethernet driver from mvista and I noticed the BCSR hack code to make the PHY work on an EP8260. I went back to the manual for the EP8280 and realized that they did something similar on this board, just as you guessed. I will add code to manage the PHY using these bits later. Meanwhile, this board also has BCSR bits to control enabling and powering on the PHY. I was able to add a bit of code to my ethernet driver and I can now see the blinking lights on the ethernet port, similar to the ones I see during tftp transfers from the boot monitors. Interestingly, the boot monitor turns off all the PHYs while the ethernet port is not being access from the boot monitor. I fail to understand the reasoning. Anyways, I am able to enable and power the PHY device and it looks like the port is seeing ethernet activity. But my driver doesn't work and complains about a TX timeout. I am sure I am missing something. Can you suggest something that I could try? Thank you. --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 12, 2004, at 5:02 PM, annamaya wrote: > > > I am now trying to do an NFS mount of the root > file > > system. Looks like the EP8280 uses LXT971A PHY > device. > > I have one of their first 8260 boards that I used to > do > the initial Linux port long ago. At that time, they > had > some weird CPLD implementation of MDIO that I could > never get to work properly. Not a bad idea, just > didn't > seem to be implemented properly. I know they have > done a second revision of this board, and I suspect > the 8280 is just a glue into the same location > design. > > With that board you should have received sufficient > information to determine what to do, although they > have always been quite secretive about releasing > enough information to successfully write software. > > In the interim, just compile the driver without any > MDIO control, hack the call to fcc_restart() at the > end of init_fcc_startup() to just force half or full > duplex (0 or 1) based upon the switch you are using. > > > Good Luck. > > > -- Dan > > __________________________________ Do you Yahoo!? Y! Messenger - Communicate in real time. Download now. http://messenger.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 14:49 ` annamaya @ 2004-10-13 16:07 ` Dan Malek 2004-10-13 18:06 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Dan Malek @ 2004-10-13 16:07 UTC (permalink / raw) To: annamaya; +Cc: Sam Song, linuxppc-embedded On Oct 13, 2004, at 10:49 AM, annamaya wrote: > ..... But my driver doesn't work and complains > about a TX timeout. I am sure I am missing something. > Can you suggest something that I could try? You are going to have to track down the clock and control signals for the FCC and make sure they are still connected the same way as the 8260. Sounds like they aren't. There are #defines at the top of the driver file that map the GPIO pins to the FCC signals. -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 16:07 ` Dan Malek @ 2004-10-13 18:06 ` annamaya 2004-10-13 19:21 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-13 18:06 UTC (permalink / raw) To: Dan Malek; +Cc: Sam Song, linuxppc-embedded I was able to use the same driver on a PQ2-FADS board with an MPC8275 processor. Are you telling me that some of these pins are board specific? Thanks for your help. --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 13, 2004, at 10:49 AM, annamaya wrote: > > > ..... But my driver doesn't work and complains > > about a TX timeout. I am sure I am missing > something. > > Can you suggest something that I could try? > > You are going to have to track down the clock and > control signals for the FCC and make sure they are > still connected the same way as the 8260. Sounds > like they aren't. There are #defines at the top of > the > driver file that map the GPIO pins to the FCC > signals. > > > -- Dan > > _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 18:06 ` annamaya @ 2004-10-13 19:21 ` annamaya 2004-10-13 21:19 ` Dan Malek 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-13 19:21 UTC (permalink / raw) To: annamaya, Dan Malek; +Cc: Sam Song, linuxppc-embedded I looked at the driver again and it looks like the TX and RX clock signals are board specific. I will also have to program the CMXFCR clock route register with the appropriate clocks. Am I on the right track here? --- annamaya <annamaya@yahoo.com> wrote: > I was able to use the same driver on a PQ2-FADS > board > with an MPC8275 processor. Are you telling me that > some of these pins are board specific? Thanks for > your > help. > > --- Dan Malek <dan@embeddededge.com> wrote: > > > > > On Oct 13, 2004, at 10:49 AM, annamaya wrote: > > > > > ..... But my driver doesn't work and complains > > > about a TX timeout. I am sure I am missing > > something. > > > Can you suggest something that I could try? > > > > You are going to have to track down the clock and > > control signals for the FCC and make sure they are > > still connected the same way as the 8260. Sounds > > like they aren't. There are #defines at the top > of > > the > > driver file that map the GPIO pins to the FCC > > signals. > > > > > > -- Dan > > > > > > > > > _______________________________ > Do you Yahoo!? > Declare Yourself - Register online to vote today! > http://vote.yahoo.com > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 19:21 ` annamaya @ 2004-10-13 21:19 ` Dan Malek 2004-10-13 21:23 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Dan Malek @ 2004-10-13 21:19 UTC (permalink / raw) To: annamaya; +Cc: Sam Song, linuxppc-embedded On Oct 13, 2004, at 3:21 PM, annamaya wrote: > I looked at the driver again and it looks like the TX > and RX clock signals are board specific. I will also > have to program the CMXFCR clock route register with > the appropriate clocks. Am I on the right track here? Yep. :-) -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 21:19 ` Dan Malek @ 2004-10-13 21:23 ` annamaya 2004-10-13 22:47 ` Dan Malek 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-13 21:23 UTC (permalink / raw) To: Dan Malek; +Cc: Sam Song, linuxppc-embedded I verified that the TX and RX clock signals are correct and the CMXFCR route register is programmed correctly for FCC2. I still see TX timeout errors. I am stumped. :-( --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 13, 2004, at 3:21 PM, annamaya wrote: > > > I looked at the driver again and it looks like the > TX > > and RX clock signals are board specific. I will > also > > have to program the CMXFCR clock route register > with > > the appropriate clocks. Am I on the right track > here? > > Yep. :-) > > > -- Dan > > __________________________________ Do you Yahoo!? Y! Messenger - Communicate in real time. Download now. http://messenger.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 21:23 ` annamaya @ 2004-10-13 22:47 ` Dan Malek 2004-10-14 15:53 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Dan Malek @ 2004-10-13 22:47 UTC (permalink / raw) To: annamaya; +Cc: Sam Song, linuxppc-embedded On Oct 13, 2004, at 5:23 PM, annamaya wrote: > I verified that the TX and RX clock signals are > correct and the CMXFCR route register is programmed > correctly for FCC2. I still see TX timeout errors. I > am stumped. :-( Do you have the FCC MAC set up properly for full or half duplex? If you don't have MDIO working, you are going to have to force this to the proper setting for your switch. I mentioned this in a previous message. If that doesn't work, take a look at the CPM memory map and ensure the "special" FCC area is mapped properly. I don't remember if the 8280 has the "big" CPM like the 8260, or the small one like the 8272. There is a configuration option that moves this memory address for the FCC fifos and special buffers. -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-13 22:47 ` Dan Malek @ 2004-10-14 15:53 ` annamaya 2004-10-14 16:45 ` Dan Malek 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-14 15:53 UTC (permalink / raw) To: Dan Malek; +Cc: Sam Song, linuxppc-embedded I cant believe I was stupid enough to beleive that the user's manual of an eval board was giving me the correct information. The problem turned out to be that the FCC controllers were not assigned to the ports that the manual stated. They were switched. I was configuring the wrong FCC controllers. Doh! By manually looking at the FCC registers during tftp transfers from the bootloader, I was able to figure out that the controller in use for the port was different from the one that the manual was telling me. I appreciate all the help that I got in solving my weird problems. Special thanks to Dan. I think I am almost done supporting the EP8280 in the Linux Kernel from denx. --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 13, 2004, at 5:23 PM, annamaya wrote: > > > I verified that the TX and RX clock signals are > > correct and the CMXFCR route register is > programmed > > correctly for FCC2. I still see TX timeout errors. > I > > am stumped. :-( > > Do you have the FCC MAC set up properly for > full or half duplex? If you don't have MDIO > working, > you are going to have to force this to the proper > setting for your switch. I mentioned this in a > previous message. > > If that doesn't work, take a look at the CPM > memory map and ensure the "special" FCC > area is mapped properly. I don't remember > if the 8280 has the "big" CPM like the 8260, > or the small one like the 8272. There is > a configuration option that moves this memory > address for the FCC fifos and special buffers. > > > -- Dan > > _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-14 15:53 ` annamaya @ 2004-10-14 16:45 ` Dan Malek 2004-10-14 18:10 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Dan Malek @ 2004-10-14 16:45 UTC (permalink / raw) To: annamaya; +Cc: Sam Song, linuxppc-embedded On Oct 14, 2004, at 11:53 AM, annamaya wrote: > I cant believe I was stupid enough to beleive that the > user's manual of an eval board was giving me the > correct information. Well, you have to start somewhere. Good job debugging, you get major points for that! :-) -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-14 16:45 ` Dan Malek @ 2004-10-14 18:10 ` annamaya 2004-10-14 20:54 ` Wolfgang Denk 2004-10-16 0:16 ` Sam Song 0 siblings, 2 replies; 28+ messages in thread From: annamaya @ 2004-10-14 18:10 UTC (permalink / raw) To: Dan Malek; +Cc: Sam Song, linuxppc-embedded Thanks again. I am glad to be back on the mailing lists. And yes, forgot to say hi to Wolfgang Denk, another one of my mentors. Hey Denk. And what's the story on lists.linuxppc.org. Will they ever retrieve the archives? --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 14, 2004, at 11:53 AM, annamaya wrote: > > > I cant believe I was stupid enough to beleive that > the > > user's manual of an eval board was giving me the > > correct information. > > Well, you have to start somewhere. Good job > debugging, you get major points for that! :-) > > > -- Dan > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-14 18:10 ` annamaya @ 2004-10-14 20:54 ` Wolfgang Denk 2004-10-16 0:16 ` Sam Song 1 sibling, 0 replies; 28+ messages in thread From: Wolfgang Denk @ 2004-10-14 20:54 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded In message <20041014181059.21986.qmail@web53803.mail.yahoo.com> you wrote: > Thanks again. I am glad to be back on the mailing > lists. And yes, forgot to say hi to Wolfgang Denk, > another one of my mentors. Hey Denk. Hello! > And what's the story on lists.linuxppc.org. Will they > ever retrieve the archives? I sent all my archives (back to 5 Dec 1998) to the current list maintainer to set up a new archive. Nothing happened since. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Every little picofarad has a nanohenry all its own. - Don Vonada ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-14 18:10 ` annamaya 2004-10-14 20:54 ` Wolfgang Denk @ 2004-10-16 0:16 ` Sam Song 1 sibling, 0 replies; 28+ messages in thread From: Sam Song @ 2004-10-16 0:16 UTC (permalink / raw) To: annamaya, Dan Malek, Wolfgang Denk; +Cc: Sam Song, linuxppc-embedded annamaya <annamaya@yahoo.com> wrote： > lists. And yes, forgot to say hi to Wolfgang Denk, > another one of my mentors. Hey Denk. > I also have the same feeling as you. :-) So why not feed back your work to DENX? There is no other appropriate public place to receive the 82xx and 8xx 2.4 patch, I am afraid. BTW, I also have a patch against denx 2_4_devel on RPXlite, I wonder whether it's acceptable to send the patch to this list. ===== Best regards, Sam _________________________________________________________ Do You Yahoo!? 150万曲MP3疯狂搜，带您闯入音乐殿堂 http://music.yisou.com/ 美女明星应有尽有，搜遍美图、艳图和酷图 http://image.yisou.com 1G就是1000兆，雅虎电邮自助扩容！ http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/ ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: linux 2.4.27 for 8xx? [not found] <20041012003339.B1EB92BDDA@ozlabs.org> 2004-10-12 1:12 ` Booting Linux using a PlanetCore BootLoader Sam Song @ 2004-10-12 1:36 ` Sam Song 1 sibling, 0 replies; 28+ messages in thread From: Sam Song @ 2004-10-12 1:36 UTC (permalink / raw) To: steven.scholz; +Cc: linuxppc-embedded steven.scholz@imc-berlin.de wrote: > is the vanilla kernel 2.4.27 from kernel.org > considered stable for MPC8xx systems? I once used it for try but came up some making errors. I don't know why. > Or do I still have to go for the trees on > ppc.bkbits.net ? You'd better to if u wanna to see the succeed earlier or switch to DENX linuxppc_2_4_devel cvs repository. ===== Best regards, Sam _________________________________________________________ Do You Yahoo!? 150万曲MP3疯狂搜，带您闯入音乐殿堂 http://music.yisou.com/ 美女明星应有尽有，搜遍美图、艳图和酷图 http://image.yisou.com 1G就是1000兆，雅虎电邮自助扩容！ http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/ ^ permalink raw reply [flat|nested] 28+ messages in thread
* Booting Linux using a PlanetCore BootLoader @ 2004-10-11 16:04 annamaya 2004-10-11 16:38 ` Dan Malek 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-11 16:04 UTC (permalink / raw) To: linuxppc-embedded I am trying to boot a linux kernel using a PlanetCore BootLoader on an embedded planet board. I am used to always using U-Boot for my Kernel booting needs. I am not sure how to get this going on a PlanetCore boot loader. I am sure someone has gone through this before and I was trying to find information but since lists.linuxppc.org is down, I am unable to find anything. BTW, when is lists.linuxpcc.org coming back? I hope that alteast the archives are backed up somewhere to be made available in the future. Does anyone have any status on that. Thanks in advance for the help. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 16:04 Booting Linux using a PlanetCore BootLoader annamaya @ 2004-10-11 16:38 ` Dan Malek 2004-10-11 17:33 ` annamaya 2004-10-11 17:50 ` annamaya 0 siblings, 2 replies; 28+ messages in thread From: Dan Malek @ 2004-10-11 16:38 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded On Oct 11, 2004, at 12:04 PM, annamaya wrote: > I am trying to boot a linux kernel using a PlanetCore > BootLoader on an embedded planet board. I am used to > always using U-Boot for my Kernel booting needs. I am > not sure how to get this going on a PlanetCore boot > loader. You need to build a zImage so you get the simple bootloader that will read the information from the EEPROM and format the board structure. Load the zImage file as a binary. It has a 64K ELF header on it, so you can either use 'dd' to strip that before the download or add 64K to the load address to use as the start address. The start address is the first instruction of the image (or +64K if you didn't remove the ELF header). -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 16:38 ` Dan Malek @ 2004-10-11 17:33 ` annamaya 2004-10-11 18:52 ` Dan Malek 2004-10-11 17:50 ` annamaya 1 sibling, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-11 17:33 UTC (permalink / raw) To: Dan Malek; +Cc: linuxppc-embedded Dan, First let me thank you for still being around to answer questions for people like me. You helped me out a lot a few years ago when I was just starting to work on all the embedded stuff. I am glad you are still helping everyone else. I will try the zImage trick but I just wanted to know if the assumption here is that the kernel already understands the EEPROM data format to construct bd_info. Is that correct? If the kernel is unable to get to this data, is there another way to pass this info to the kernel? Thanks much. --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 11, 2004, at 12:04 PM, annamaya wrote: > > > I am trying to boot a linux kernel using a > PlanetCore > > BootLoader on an embedded planet board. I am used > to > > always using U-Boot for my Kernel booting needs. I > am > > not sure how to get this going on a PlanetCore > boot > > loader. > > You need to build a zImage so you get the simple > bootloader that will read the information from the > EEPROM > and format the board structure. > > Load the zImage file as a binary. It has a 64K ELF > header > on it, so you can either use 'dd' to strip that > before the > download or add 64K to the load address to use as > the > start address. The start address is the first > instruction of > the image (or +64K if you didn't remove the ELF > header). > > > -- Dan > > __________________________________ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 17:33 ` annamaya @ 2004-10-11 18:52 ` Dan Malek 0 siblings, 0 replies; 28+ messages in thread From: Dan Malek @ 2004-10-11 18:52 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded On Oct 11, 2004, at 1:33 PM, annamaya wrote: > I will try the zImage trick It's not a trick nor magic :-) It's required for use with these boards because...... > ...but I just wanted to know > if the assumption here is that the kernel already > understands the EEPROM data format to construct > bd_info. Is that correct? ....the kernel does not understand anything about the EEPROM format on this board. This is the reason this "front end" bootloader was created. The standard interface to the kernel is the board descriptor, the board specific data in the EEPROM or elsewhere is usually quite varied and isn't appropriate to have in the kernel when it can be easily represented in a standard manner. Thanks. -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 16:38 ` Dan Malek 2004-10-11 17:33 ` annamaya @ 2004-10-11 17:50 ` annamaya 2004-10-11 18:15 ` Tom Rini 2004-10-11 18:55 ` Dan Malek 1 sibling, 2 replies; 28+ messages in thread From: annamaya @ 2004-10-11 17:50 UTC (permalink / raw) To: Dan Malek; +Cc: linuxppc-embedded I loaded a zImage into address 0x100000 in RAM and verified that this was indeed an ELF file. I then said "go 0x100040" which would start executing the code after skipping the 64 bytes of ELF header. But this is what I see happen. BDI>info Target CPU : MPC8280/8220/5200 (Zeppo) Target state : debug mode Debug entry cause : <reserved 0> Current PC : 0x00100040 Current CR : 0x20004022 Current MSR : 0x00000000 Current LR : 0xfff0531c It looks like address 0x0 is reserved for some weird reason. When I do a dump of the 0x0 area, it looks like there is copy of the planetcore bootloader here since I see some text indicating that. If I dont have the BDI hooked up, I see an immediate reboot of the device, consistant with executing the bootloader at 0x0. Any inputs on why this is happenning? I just understand the PlanetCore bootloader very well. --- Dan Malek <dan@embeddededge.com> wrote: > > On Oct 11, 2004, at 12:04 PM, annamaya wrote: > > > I am trying to boot a linux kernel using a > PlanetCore > > BootLoader on an embedded planet board. I am used > to > > always using U-Boot for my Kernel booting needs. I > am > > not sure how to get this going on a PlanetCore > boot > > loader. > > You need to build a zImage so you get the simple > bootloader that will read the information from the > EEPROM > and format the board structure. > > Load the zImage file as a binary. It has a 64K ELF > header > on it, so you can either use 'dd' to strip that > before the > download or add 64K to the load address to use as > the > start address. The start address is the first > instruction of > the image (or +64K if you didn't remove the ELF > header). > > > -- Dan > > _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 17:50 ` annamaya @ 2004-10-11 18:15 ` Tom Rini 2004-10-11 18:38 ` annamaya 2004-10-11 18:55 ` Dan Malek 1 sibling, 1 reply; 28+ messages in thread From: Tom Rini @ 2004-10-11 18:15 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded On Mon, Oct 11, 2004 at 10:50:54AM -0700, annamaya wrote: > I loaded a zImage into address 0x100000 in RAM and > verified that this was indeed an ELF file. I then said > "go 0x100040" which would start executing the code > after skipping the 64 bytes of ELF header. But this is > what I see happen. It's 64Kilobytes, so you'd want 0x00110000. You also might be loading yourself a bit too low. The default link address is (assuming this is 2.4 and I'm still recalling right) 0x00200000, so you might as well load things there. -- Tom Rini http://gate.crashing.org/~trini/ ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 18:15 ` Tom Rini @ 2004-10-11 18:38 ` annamaya 2004-10-11 18:47 ` Tom Rini 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-11 18:38 UTC (permalink / raw) To: Tom Rini; +Cc: linuxppc-embedded Oops! Thanks for pointing that blooper. I am so used to dealing with the U-Boot header of 64 bytes that I misread the ELF header size as 64 bytes instead of 64 KBytes. Anyways, it looks like I am much farther that I have ever been before. Now, I see that the PC is stuck at some address that I am not sure what to make off. Is this before the MMU has been turned on? Also, it looks like my BDI is not showing the "Debug entry cause" correctly. BDI>info Target CPU : MPC8280/8220/5200 (Zeppo) Target state : debug mode Debug entry cause : <reserved 0> Current PC : 0x00401890 Current CR : 0x20002024 Current MSR : 0x00002040 Current LR : 0x0040084c I am not sure how I can map this address to some address in the kernel. Could this be due to the unavailability of bdinfo? Do I have to put in support in the kernel to pass bdinfo? Thanks much. --- Tom Rini <trini@kernel.crashing.org> wrote: > On Mon, Oct 11, 2004 at 10:50:54AM -0700, annamaya > wrote: > > > I loaded a zImage into address 0x100000 in RAM and > > verified that this was indeed an ELF file. I then > said > > "go 0x100040" which would start executing the code > > after skipping the 64 bytes of ELF header. But > this is > > what I see happen. > > It's 64Kilobytes, so you'd want 0x00110000. You > also might be loading > yourself a bit too low. The default link address is > (assuming this is > 2.4 and I'm still recalling right) 0x00200000, so > you might as well load > things there. > > -- > Tom Rini > http://gate.crashing.org/~trini/ > _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 18:38 ` annamaya @ 2004-10-11 18:47 ` Tom Rini 2004-10-11 21:18 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Tom Rini @ 2004-10-11 18:47 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded On Mon, Oct 11, 2004 at 11:38:28AM -0700, annamaya wrote: > Oops! Thanks for pointing that blooper. I am so used > to dealing with the U-Boot header of 64 bytes that I > misread the ELF header size as 64 bytes instead of 64 > KBytes. > > Anyways, it looks like I am much farther that I have > ever been before. Now, I see that the PC is stuck at > some address that I am not sure what to make off. Is > this before the MMU has been turned on? Also, it looks > like my BDI is not showing the "Debug entry cause" > correctly. Could you send more of the boot-log ? And what board is this exactly on what kernel? Thanks. -- Tom Rini http://gate.crashing.org/~trini/ ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 18:47 ` Tom Rini @ 2004-10-11 21:18 ` annamaya 2004-10-11 21:44 ` Tom Rini 0 siblings, 1 reply; 28+ messages in thread From: annamaya @ 2004-10-11 21:18 UTC (permalink / raw) To: Tom Rini; +Cc: linuxppc-embedded I do not have any other logs when this happens since I dont have any serial output when the failure happens. I am trying to do this on a EP8280 eval board. Has someone already included support for this board in the Kernel? Thank you. --- Tom Rini <trini@kernel.crashing.org> wrote: > On Mon, Oct 11, 2004 at 11:38:28AM -0700, annamaya > wrote: > > > Oops! Thanks for pointing that blooper. I am so > used > > to dealing with the U-Boot header of 64 bytes that > I > > misread the ELF header size as 64 bytes instead of > 64 > > KBytes. > > > > Anyways, it looks like I am much farther that I > have > > ever been before. Now, I see that the PC is stuck > at > > some address that I am not sure what to make off. > Is > > this before the MMU has been turned on? Also, it > looks > > like my BDI is not showing the "Debug entry cause" > > correctly. > > Could you send more of the boot-log ? And what > board is this exactly on > what kernel? Thanks. > > -- > Tom Rini > http://gate.crashing.org/~trini/ > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 21:18 ` annamaya @ 2004-10-11 21:44 ` Tom Rini 2004-10-11 22:52 ` annamaya 0 siblings, 1 reply; 28+ messages in thread From: Tom Rini @ 2004-10-11 21:44 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded On Mon, Oct 11, 2004 at 02:18:59PM -0700, annamaya wrote: > I do not have any other logs when this happens since I > dont have any serial output when the failure happens. > I am trying to do this on a EP8280 eval board. Has > someone already included support for this board in the > Kernel? Thank you. Without knowing which kernel you're using, I can't say for certain, but would assume it should work. When you type 'go 0x210000' after loading the kernel, you get nothing? -- Tom Rini http://gate.crashing.org/~trini/ ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 21:44 ` Tom Rini @ 2004-10-11 22:52 ` annamaya 0 siblings, 0 replies; 28+ messages in thread From: annamaya @ 2004-10-11 22:52 UTC (permalink / raw) To: Tom Rini; +Cc: linuxppc-embedded I am using the Linux Kernel 2.4.24-pre2. I included support for this board and created an embed_config() routine to pass in the correct board information. I am now able to see the "relocation" messages by zImage and it now halts with the message "Now booting the kernel". I see that it is now hung in some delay routine which was called from a panic routine. I am working on trying to figure this out. >go 210000 loaded at: 00210000 002D426C relocated to: 00400000 004C426C board data at: 004C1130 004C115C relocated to: 004052D8 00405304 zimage at: 00405810 004C0CC4 avail ram: 004C5000 10000000 Linux/PPC load: root=/dev/nfs rw ip=on Uncompressing Linux...done. Now booting the kernel --- Tom Rini <trini@kernel.crashing.org> wrote: > On Mon, Oct 11, 2004 at 02:18:59PM -0700, annamaya > wrote: > > > I do not have any other logs when this happens > since I > > dont have any serial output when the failure > happens. > > I am trying to do this on a EP8280 eval board. Has > > someone already included support for this board in > the > > Kernel? Thank you. > > Without knowing which kernel you're using, I can't > say for certain, but > would assume it should work. When you type 'go > 0x210000' after loading > the kernel, you get nothing? > > -- > Tom Rini > http://gate.crashing.org/~trini/ > _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ^ permalink raw reply [flat|nested] 28+ messages in thread
* Re: Booting Linux using a PlanetCore BootLoader 2004-10-11 17:50 ` annamaya 2004-10-11 18:15 ` Tom Rini @ 2004-10-11 18:55 ` Dan Malek 1 sibling, 0 replies; 28+ messages in thread From: Dan Malek @ 2004-10-11 18:55 UTC (permalink / raw) To: annamaya; +Cc: linuxppc-embedded On Oct 11, 2004, at 1:50 PM, annamaya wrote: > I loaded a zImage into address 0x100000 in RAM and > verified that this was indeed an ELF file. I then said > "go 0x100040" which would start executing the code > after skipping the 64 bytes of ELF header. But this is > what I see happen. Two problem. First, that address for loading is too low. You need to load at or above 0x200000. The kernel lives where you loaded, so the uncompress copied over your uncompressing code and image. Second, the offset is 64K not 64. You want to load at 0x200000 and 'go 0x210000' -- Dan ^ permalink raw reply [flat|nested] 28+ messages in thread
end of thread, other threads:[~2004-10-16 0:16 UTC | newest]
Thread overview: 28+ messages (download: mbox.gz follow: Atom feed
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2004-10-12 1:12 ` Booting Linux using a PlanetCore BootLoader Sam Song
2004-10-12 21:02 ` annamaya
2004-10-12 21:26 ` Dan Malek
2004-10-13 14:49 ` annamaya
2004-10-13 16:07 ` Dan Malek
2004-10-13 18:06 ` annamaya
2004-10-13 19:21 ` annamaya
2004-10-13 21:19 ` Dan Malek
2004-10-13 21:23 ` annamaya
2004-10-13 22:47 ` Dan Malek
2004-10-14 15:53 ` annamaya
2004-10-14 16:45 ` Dan Malek
2004-10-14 18:10 ` annamaya
2004-10-14 20:54 ` Wolfgang Denk
2004-10-16 0:16 ` Sam Song
2004-10-12 1:36 ` linux 2.4.27 for 8xx? Sam Song
2004-10-11 16:04 Booting Linux using a PlanetCore BootLoader annamaya
2004-10-11 16:38 ` Dan Malek
2004-10-11 17:33 ` annamaya
2004-10-11 18:52 ` Dan Malek
2004-10-11 17:50 ` annamaya
2004-10-11 18:15 ` Tom Rini
2004-10-11 18:38 ` annamaya
2004-10-11 18:47 ` Tom Rini
2004-10-11 21:18 ` annamaya
2004-10-11 21:44 ` Tom Rini
2004-10-11 22:52 ` annamaya
2004-10-11 18:55 ` Dan Malek
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