coreboot August 2003

coreboot@coreboot.org

53 participants
141 discussions

Preliminary doubts
by John Praveen 07 Aug '03

07 Aug '03

Sorry. I donot know whats the problem. I can get mails properly sent through this id. Hi, I have the custom board (geode sc1200) with peripherals like ethernet, PCI audio video decoder, Tuner, hard disk, SDRAM, Flash memory. I will have to have my BIOS program, linux kernel and specific application program in my Flash memory. I have hard disk only for storing files. My Flash memory is of 32 Mbits and SDRAM 32MBytes. I want to use LinuxBios. I build it for nano mainboard. But still I have many doubts. In normal BIOS, we will say the bios program to load the bootloader from hard disk into location 0000:7C00. What part of the program in Linuxbios will bring my linux kernel image from Flash into SDRAM? Is any options or something to be included in the configuration file to say to boot from Flash memory. In my embedded device the Flash memory is mapped to physical address 00000h to 3FFFFFh. So at what location should i place the linuxbios romimage and linux kernel image in my Flash memory? Where shall my application program be placed in Flash? I hope I should have a filesystem. Is the MTD meant for the filesystem? What part of the program in Linuxbios will bring my linux kernel image from Flash into SDRAM? Thanks in advance. Regards, John. --------------------------------- Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

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Re: S2880
by YhLu 07 Aug '03

07 Aug '03

It seems the Kernel clear 0x0--4k. Of course after itself take the MP TABLE. Maybe need to update the kernel. YH -----邮件原件----- 发件人: YhLu 发送时间: 2003年8月6日 18:30 收件人: ron minnich 抄送: 'ebiederman(a)lnxi.com'; 'Stefan Reinauer'; 'linuxbios(a)clustermatic.org' 主题: re: S2880 Eric, Under 4G RAM linusbios_tables occupy 0x500-0xae0, cmos_util can find option_table even after rebooting. Under 6G RAM linuxbios_tables occupy 0x500-0xaf4, cmos_util can find option_table after power on but can not find it after rebooting. The only difference should be that rebooting don't execute auto.c again. Any advise. Regards Yingahi Lu -----邮件原件----- 发件人: YhLu 发送时间: 2003年8月6日 17:11 收件人: ron minnich 抄送: 'ebiederman(a)lnxi.com'; 'Stefan Reinauer'; 'linuxbios(a)clustermatic.org' 主题: 答复: S2880 Ron, I have verfied that if I disable the XIP... in old config tool, the image produced will make the option table not accessiable after reboot too. Regards Yinghai Lu -----邮件原件----- 发件人: ron minnich [mailto:rminnich@lanl.gov] 发送时间: 2003年8月6日 15:51 收件人: YhLu 抄送: 'ebiederman(a)lnxi.com'; 'Stefan Reinauer'; 'linuxbios(a)clustermatic.org' 主题: Re: S2880 I will try to email you my latest tree, Stefan put them in last night. ron _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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Re: S2880
by YhLu 07 Aug '03

07 Aug '03

So you will add one module that will produce PIRQ automatically? YH -----邮件原件----- 发件人: ron minnich [mailto:rminnich@lanl.gov] 发送时间: 2003年8月6日 20:50 收件人: YhLu 抄送: 'ebiederman(a)lnxi.com'; 'Stefan Reinauer'; 'linuxbios(a)clustermatic.org' 主题: Re: S2880 I really need a working PIRQ (don't ask) so I'm going to take a stab at generating one from the linuxbios tables, unless somebody else has done/wants to do it. ron

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Preliminary doubts!
by John Praveen 07 Aug '03

07 Aug '03

Hi, I have the custom board (geode sc1200) with peripherals like ethernet, PCI audio video decoder, Tuner, hard disk, SDRAM, Flash memory. I will have to have my BIOS program, linux kernel and specific application program in my Flash memory. I have hard disk only for storing files. My Flash memory is of 32 Mbits and SDRAM 32MBytes. I want to use LinuxBios. I build it for nano mainboard. But still I have many doubts. In normal BIOS, we will say the bios program to load the bootloader from hard disk into location 0000:7C00. What part of the program in Linuxbios will bring my linux kernel image from Flash into SDRAM? Is any options or something to be included in the configuration file to say to boot from Flash memory. In my embedded device the Flash memory is mapped to physical address 00000h to 3FFFFFh. So at what location should i place the linuxbios romimage and linux kernel image in my Flash memory? Where shall my application program be placed in Flash? I hope I should have a filesystem. Is the MTD meant for the filesystem? What part of the program in Linuxbios will bring my linux kernel image from Flash into SDRAM? Thanks in advance. Regards, John. --------------------------------- Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

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Re: S2880
by YhLu 07 Aug '03

07 Aug '03

In the cmos_util if it can not find linuxbios table from (0--4k) , it will find that from (960k to 1M). Please suggest where we should preserve second copy of linuxbios table. YH -----邮件原件----- 发件人: ron minnich [mailto:rminnich@lanl.gov] 发送时间: 2003年8月6日 20:49 收件人: YhLu 抄送: 'ebiederman(a)lnxi.com'; 'Stefan Reinauer'; 'linuxbios(a)clustermatic.org' 主题: Re: S2880 On Wed, 6 Aug 2003, YhLu wrote: > It seems the Kernel clear 0x0--4k. > Of course after itself take the MP TABLE. yuck. I always thought it left that page alone, since it's page zero anyway. Well, that explains a thing or two. ron

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答复: S2880
by YhLu 06 Aug '03

06 Aug '03

Ron, I have verfied that if I disable the XIP... in old config tool, the image produced will make the option table not accessiable after reboot too. Regards Yinghai Lu -----邮件原件----- 发件人: ron minnich [mailto:rminnich@lanl.gov] 发送时间: 2003年8月6日 15:51 收件人: YhLu 抄送: 'ebiederman(a)lnxi.com'; 'Stefan Reinauer'; 'linuxbios(a)clustermatic.org' 主题: Re: S2880 I will try to email you my latest tree, Stefan put them in last night. ron

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Re: S2880
by YhLu 06 Aug '03

06 Aug '03

Ron, It seems I can not enable XIP_ROM_SIZE and XIP_ROM_BASE. Even I have set them in Options.lb Regards Yinghai Lu -----邮件原件----- 发件人: YhLu 发送时间: 2003年8月6日 15:17 收件人: YhLu; ebiederman(a)lnxi.com; ron minnich 抄送: Stefan Reinauer; linuxbios(a)clustermatic.org 主题: Re: S2880 Ron, After swap _ROMBASE etc to after ROM_SECTION_SIZE and ROM_SECTION_OFFSET. I can switch to the normal mode. But in fallback mode and normal mode ( after reboot) still got problem. ~ # cmos_util -d # The CMOS Definition table was not found in ram # CMOS definition table was not found in RAM memory # Looking for definitions in cmos.layout file Can not open config file cmos.layout Regards Yinghai Lu -----邮件原件----- 发件人: YhLu 发送时间: 2003年8月6日 11:18 收件人: 'ebiederman(a)lnxi.com'; ron minnich 抄送: Stefan Reinauer; linuxbios(a)clustermatic.org 主题: S2880 Eric, It seems the image that built with can not switch to Normal booting. 1. In Fallback mode, after power on I can use cmos_util. 2. after rebooting it is still in Fallback mode,and can not cmos_util, it said can not find option table in the ram. And can not access cmos.layout. When I using old tool, I can switch to normal mode, but need to change boot_option and last_boot from fallback to normal. regards Yinghai Lu

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Re: S2880
by YhLu 06 Aug '03

06 Aug '03

Ron, After swap _ROMBASE etc to after ROM_SECTION_SIZE and ROM_SECTION_OFFSET. I can switch to the normal mode. But in fallback mode and normal mode ( after reboot) still got problem. ~ # cmos_util -d # The CMOS Definition table was not found in ram # CMOS definition table was not found in RAM memory # Looking for definitions in cmos.layout file Can not open config file cmos.layout Regards Yinghai Lu -----邮件原件----- 发件人: YhLu 发送时间: 2003年8月6日 11:18 收件人: 'ebiederman(a)lnxi.com'; ron minnich 抄送: Stefan Reinauer; linuxbios(a)clustermatic.org 主题: S2880 Eric, It seems the image that built with can not switch to Normal booting. 1. In Fallback mode, after power on I can use cmos_util. 2. after rebooting it is still in Fallback mode,and can not cmos_util, it said can not find option table in the ram. And can not access cmos.layout. When I using old tool, I can switch to normal mode, but need to change boot_option and last_boot from fallback to normal. regards Yinghai Lu

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Re: new config version skew problem
by YhLu 06 Aug '03

06 Aug '03

Only need one cat command to do that. I use ns2880 to produce one cat ../../fwx.rom ./normal/linuxbios.rom ./fallback/linuxbios.rom > s2880_linuxbios.rom regards Yinghai Lu -----邮件原件----- 发件人: ron minnich [mailto:rminnich@lanl.gov] 发送时间: 2003年8月5日 22:06 收件人: Eric W. Biederman 抄送: Greg Watson; linuxbios(a)clustermatic.org 主题: Re: new config version skew problem oh yes, note the top level makefile should concatenate the images in fallback and normal to produce the final image, but I am not that far along yet. ron _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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S2880
by YhLu 06 Aug '03

06 Aug '03

Eric, It seems the image that built with can not switch to Normal booting. 1. In Fallback mode, after power on I can use cmos_util. 2. after rebooting it is still in Fallback mode,and can not cmos_util, it said can not find option table in the ram. And can not access cmos.layout. When I using old tool, I can switch to normal mode, but need to change boot_option and last_boot from fallback to normal. regards Yinghai Lu

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coreboot August 2003