Re: GPIOs
I hope we can find some better way to distinguish between the different board flavors in early startup code. The current technique, involving an EC command (whose response latency cannot be guaranteed) with the answer cached in CMOS RAM (which cannot be accessed quickly due to the power-glitch prevention circuitry) has caused me a great deal of grief to make it work reliably, and still takes too long. I was looking forward to deleting that code when we deprecate the A-test boards. Now it appears that the problem will come back in spades, since it's unlikely that we will be able to deprecate B2. John Watlington wrote: I'm proposing a new GPIO map for XO-1.5 B3 and beyond. The changes are: - Moved the control signals for the internal and external SD ports and the WLAN around to match new port assignment. - The power control for the internal SD port (MSD_PWROFF) is provided through a separate GPIO2 (instead of the faulty default output, SDIO2PWOFF). As there is an external pullup on this signal, there is no need to enable the (default off) internal pullup.GPIO2 has been tested by Via to remain powered and glitch-free in states S0/S3. - For B2 prototypes, I am proposing the use of GPIO2 as an ECO'd power control signal for the WLAN. - The DCONIRQ line has been moved (again). On B2, the interrupt input chosen is synchronized by the RTC clock, preventing reliable detection of DCON interrupts (which are one video line in duration). This time, it is connected to GPIO12, which is only powered in S0 but can generate SCI/SMI interrupts and is not owned by ACPI. - The EC/CPU interrupt will also be routed to another pin capable of generating SCI/SMI interrupts that is not owned by ACPI at the request of pgf. It is routed to GPIO11, which is only powered in S0. This pin will be diode isolated from the other interrupt input (powered in S3.) Unfortunately, I can't find another interrupt input not owned by ACPI that is powered in S3. - The HDD_LED# signal (yet to be supported) has been moved to GPO4 to free up GPIO11. Cheers, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: signed F11 for XO-1
On Wed, Oct 7, 2009 at 1:00 PM, Esteban Bordon ebor...@plan.ceibal.edu.uy wrote: are the kernel params hardcoded in OFW for secure boot? Yes -- on insecure boot boot/olpc.fth is read, but not on secure boot. Notes at http://wiki.laptop.org/go/Boot_Process If you want to see how the kernel params are setup in OFW, you should look at OpenFirmware as of changeset 1145, in the file cpu/x86/pc/olpc/fw.bth http://tracker.coreboot.org/trac/openfirmware/changeset/1145 You want to look for boot-file. Anyway, my quick review of the file is that there doesn't seem to be a usable root parameter for that case. If you look, *nothing* talks about mtd in relation to the boot-file parameter. The initramfs code should check for the secure case, or at least the missing a root parameter and set it. cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: GPIOs
john wrote: I'm proposing a new GPIO map for XO-1.5 B3 and beyond. The changes are: - Moved the control signals for the internal and external SD ports and the WLAN around to match new port assignment. - The power control for the internal SD port (MSD_PWROFF) is provided through a separate GPIO2 (instead of the faulty default output, SDIO2PWOFF). As there is an external pullup on this signal, there is no need to enable the (default off) internal pullup.GPIO2 has been tested by Via to remain powered and glitch-free in states S0/S3. - For B2 prototypes, I am proposing the use of GPIO2 as an ECO'd power control signal for the WLAN. - The DCONIRQ line has been moved (again). On B2, the interrupt input chosen is synchronized by the RTC clock, preventing reliable detection of DCON interrupts (which are one video line in duration). This time, it is connected to GPIO12, which is only powered in S0 but can generate SCI/SMI interrupts and is not owned by ACPI. - The EC/CPU interrupt will also be routed to another pin capable of generating SCI/SMI interrupts that is not owned by ACPI at the request of pgf. It is routed to GPIO11, which is only powered in S0. This pin will be diode isolated from the other interrupt input (powered in S3.) Unfortunately, I can't find another interrupt input not owned by ACPI that is powered in S3. if the DCONIRQ move proves successful, then that will free up SMBALRT (powered in S3) to be used for the EC. paul - The HDD_LED# signal (yet to be supported) has been moved to GPO4 to free up GPIO11. Cheers, wad =- paul fox, p...@laptop.org ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: GPIOs
On Oct 9, 2009, at 8:11 AM, Paul Fox wrote: john wrote: I'm proposing a new GPIO map for XO-1.5 B3 and beyond. The changes are: - Moved the control signals for the internal and external SD ports and the WLAN around to match new port assignment. - The power control for the internal SD port (MSD_PWROFF) is provided through a separate GPIO2 (instead of the faulty default output, SDIO2PWOFF). As there is an external pullup on this signal, there is no need to enable the (default off) internal pullup.GPIO2 has been tested by Via to remain powered and glitch-free in states S0/S3. - For B2 prototypes, I am proposing the use of GPIO2 as an ECO'd power control signal for the WLAN. - The DCONIRQ line has been moved (again). On B2, the interrupt input chosen is synchronized by the RTC clock, preventing reliable detection of DCON interrupts (which are one video line in duration). This time, it is connected to GPIO12, which is only powered in S0 but can generate SCI/SMI interrupts and is not owned by ACPI. - The EC/CPU interrupt will also be routed to another pin capable of generating SCI/SMI interrupts that is not owned by ACPI at the request of pgf. It is routed to GPIO11, which is only powered in S0. This pin will be diode isolated from the other interrupt input (powered in S3.) Unfortunately, I can't find another interrupt input not owned by ACPI that is powered in S3. if the DCONIRQ move proves successful, then that will free up SMBALRT (powered in S3) to be used for the EC. SMBALRT isn't owned by ACPI ? John ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
[Server-devel] Upgrading from XS0.6d3 or beta etc.
Is it possible to upgrade from a prerelease version to XS 0.6 final with yum? Thanks Dave -- Dave Bauer d...@solutiongrove.com http://www.solutiongrove.com ___ Server-devel mailing list server-de...@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: GPIOs
john wrote: On Oct 9, 2009, at 8:11 AM, Paul Fox wrote: john wrote: I'm proposing a new GPIO map for XO-1.5 B3 and beyond. The changes are: - Moved the control signals for the internal and external SD ports and the WLAN around to match new port assignment. - The power control for the internal SD port (MSD_PWROFF) is provided through a separate GPIO2 (instead of the faulty default output, SDIO2PWOFF). As there is an external pullup on this signal, there is no need to enable the (default off) internal pullup.GPIO2 has been tested by Via to remain powered and glitch-free in states S0/S3. - For B2 prototypes, I am proposing the use of GPIO2 as an ECO'd power control signal for the WLAN. - The DCONIRQ line has been moved (again). On B2, the interrupt input chosen is synchronized by the RTC clock, preventing reliable detection of DCON interrupts (which are one video line in duration). This time, it is connected to GPIO12, which is only powered in S0 but can generate SCI/SMI interrupts and is not owned by ACPI. - The EC/CPU interrupt will also be routed to another pin capable of generating SCI/SMI interrupts that is not owned by ACPI at the request of pgf. It is routed to GPIO11, which is only powered in S0. This pin will be diode isolated from the other interrupt input (powered in S3.) Unfortunately, I can't find another interrupt input not owned by ACPI that is powered in S3. if the DCONIRQ move proves successful, then that will free up SMBALRT (powered in S3) to be used for the EC. SMBALRT isn't owned by ACPI ? not in as strong a sense as any of the GPE inputs. paul =- paul fox, p...@laptop.org ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] Upgrading from XS0.6d3 or beta etc.
On Fri, Oct 9, 2009 at 4:48 PM, Dave Bauer d...@solutiongrove.com wrote: Is it possible to upgrade from a prerelease version to XS 0.6 final with yum? Yes, definitely. Follow the same procedure as for XS-0.5.x, including the post-upgrade steps... http://wiki.laptop.org/go/XS_Installing_Software#Upgrade_from_XS_0.5_or_later m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Server-devel mailing list server-de...@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] XS upgrade
Thanks. I will work with 6.0 version from scratch can I manage moodle from any computer? or it is only for the XOs El 4 de octubre de 2009 10:40, Martin Langhoff martin.langh...@gmail.comescribió: CC'ing the list again - let's keep it on list so otehrs can help too... 2009/10/2 Henry Vélez Molina henry.lap...@gmail.com: Error: Database connection failed. Hmm. Can you tell me the output of these again? chkconfig --list pgsql-xs chkconfig --list postgresql (First one should say 'on' on levels 3,4,5, second should be 'off' on all). And just to understand this better... what does this cmd say? /etc/init.d/pgsql-xs status This one was after the upgrade, and ejabberd does not work, is running but I can not see it in any computer. It is normal that you cannot see the web UI for ejabberd anymore. Here are some commands to try to see whether it is working correctly: http://wiki.laptop.org/go/XS_Techniques_and_Configuration#Presence_Service_.28ejabberd.29_Troubleshooting cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff -- Henry Vélez Molina Administrador de red OLPC Fundación MArina Orth Tel :341 23 59 Móvil: 312 769 0169 www.fundacionmarinaorth.org ___ Server-devel mailing list server-de...@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
rpmbuild macro for libgcc.a location?
Working on an OLPC package (olpc-bios-crypto, which has a reasonable chance of being upstreamable when it stabilizes)... we keep appending -L lines to make it build in different releases / distros. Is there an rpm macro that points to the location of libgcc.a? Or an elegant way to get it? (While avoiding autoconf and the like...) For example, for F11 I am adding: -L/usr/lib/gcc/i586-redhat-linux/4.4.1/ cheers, martin -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Images partitioned right? Good USB drives? (Re: Woodhouse on flash storage)
On Tue, Oct 6, 2009 at 3:10 AM, Mitch Bradley w...@laptop.org wrote: b) If you must construct a fixed partition layout for use on multiple different devices, align each partition on at least a 4MiB boundary. That means that you waste 4M for the partition map (one 512-byte sector padded out to a 4 MiB boundary, but oh well). For devices 2 GiB or less - the previous generation - maybe 1 MiB alignment would be okay, as such devices are likely to have smaller erase blocks. Those numbers seem safe to me. 1. Do the F11 / SoaS overwrite your USB/SD device XO images follow this guideline? cat soas??xo.2gremovable.tar.lzma | lzma -dc - | tar xf - -O /dev/sdX (The way a boot image is created and distributed as multiple monolithic 379+ MB files seems crazy -- surely it's just a collection of files, tweaks to the existing MBR, and some disk partitioning and FS layout requirements. But that's a different discussion. ;-) ) 2. The old Fedora 10 on XO project specifically recommended SanDisk Extreme III SD cards. Can anyone suggest generally-good brands of USB flash drives? (I have a cheap USB flash drive that has gone crazy after two /dev/sdb reblastings; often usb-creator leaves it in a bizarre state and dosfsck reports hundreds of errors it can't repair. Weird.) Thanks for all you do! -- =S Page ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Images partitioned right? Good USB drives? (Re: Woodhouse on flash storage)
OCZ Rally 2 4GB has worked fine for me for a year now. If you go for the OCZ Rally 2 Turbo, it has higher random write speeds(faster boot, opening apps) but I'm not sure about reliabilty. OCZ has a good reputation for good reliability on most of it's products. Using an USB-SD adapter with one of those recommended SD cards might be a good idea. Some look like pen drives. Mitch told me that micro Sandisk SDHC 4GB and Transcend micro SDHC were behaving well in the stress test and I can also say the same for the Sandisk 4GB SDHC card, class 2. Best regards, Tiago Marques On Sat, Oct 10, 2009 at 12:23 AM, S Page skierp...@gmail.com wrote: On Tue, Oct 6, 2009 at 3:10 AM, Mitch Bradley w...@laptop.org wrote: b) If you must construct a fixed partition layout for use on multiple different devices, align each partition on at least a 4MiB boundary. That means that you waste 4M for the partition map (one 512-byte sector padded out to a 4 MiB boundary, but oh well). For devices 2 GiB or less - the previous generation - maybe 1 MiB alignment would be okay, as such devices are likely to have smaller erase blocks. Those numbers seem safe to me. 1. Do the F11 / SoaS overwrite your USB/SD device XO images follow this guideline? cat soas??xo.2gremovable.tar.lzma | lzma -dc - | tar xf - -O /dev/sdX (The way a boot image is created and distributed as multiple monolithic 379+ MB files seems crazy -- surely it's just a collection of files, tweaks to the existing MBR, and some disk partitioning and FS layout requirements. But that's a different discussion. ;-) ) 2. The old Fedora 10 on XO project specifically recommended SanDisk Extreme III SD cards. Can anyone suggest generally-good brands of USB flash drives? (I have a cheap USB flash drive that has gone crazy after two /dev/sdb reblastings; often usb-creator leaves it in a bizarre state and dosfsck reports hundreds of errors it can't repair. Weird.) Thanks for all you do! -- =S Page ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Images partitioned right? Good USB drives? (Re: Woodhouse on flash storage)
On Fri, Oct 09, 2009 at 04:23:17PM -0700, S Page wrote: On Tue, Oct 6, 2009 at 3:10 AM, Mitch Bradley w...@laptop.org wrote: b) If you must construct a fixed partition layout for use on multiple different devices, align each partition on at least a 4MiB boundary. That means that you waste 4M for the partition map (one 512-byte sector padded out to a 4 MiB boundary, but oh well). [...] 1. Do the F11 / SoaS overwrite your USB/SD device XO images follow this guideline? cat soas??xo.2gremovable.tar.lzma | lzma -dc - | tar xf - -O /dev/sdX Nope (SoaS) - that'll waste your partition table in favour of whatever I copied from my dsd-inspired make-fake-device partition table script[1]. I'd love patches. Actually, I even had a try[2] at getting it right a while ago, based on what I understood from T'so's post[3] and Mitch's warning page[4]: --- Do this for ext3 (omit -j for ext2): fdisk -H 224 -S 56 /dev/sdb [partition as normal] mke2fs -j -E stripe-width=32,resize=500G /dev/sdb1 [etc.] ...or this for ext4: fdisk -H 224 -S 56 /dev/sdb [partition as normal] mke2fs -t ext4 -E stripe-width=32,resize=500G /dev/sdb1 [etc.] --- ...but if anyone can correct / enlighten me as to The True Partition... (The way a boot image is created and distributed as multiple monolithic 379+ MB files seems crazy -- surely it's just a collection of files, tweaks to the existing MBR, and some disk partitioning and FS layout requirements. But that's a different discussion. ;-) ) Err, I call Q.E.D. on why that's the easiest way to distribute a workable image :). But we burn a lot of disk space distributing .ISOs, NAND-ready JFFS2 images, tar'ed directory trees, and even xdeltas of the tar'ed directory trees (or something), so hopefully anyone who can write a better set of instructions than that cat pipeline you quoted won't be stopped by the lack of a set of bytes to kick the process off. (I have a cheap USB flash drive that has gone crazy after two /dev/sdb reblastings; often usb-creator leaves it in a bizarre state and dosfsck reports hundreds of errors it can't repair. Weird.) Indeed...sorry to hear it. I have a cheap 4GB USB drive that's been re-blasted a hundred or so times and is still going. =S Page Martin 1. http://cgit.sugarlabs.org/soas/mainline/tree/make_fake_device.sh#n55 2. http://www.martindengler.com/ , scroll down to 2009-03-07 : Formatting SD cards as ext2, ext3, or ext4 3. http://thunk.org/tytso/blog/2009/02/20/aligning-filesystems-to-an-ssds-erase-block-size/ 4. http://wiki.laptop.org/go/How_to_Damage_a_FLASH_Storage_Device pgprPAy9OrD3Z.pgp Description: PGP signature ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Images partitioned right?
Using an USB-SD adapter with one of those recommended SD cards might be a good idea. I'm very heavily dependent on SD cards. In 2008 it was my experience that using a particular hub/adapter to initialize SD cards, I was often seeing partition table corruption. What I ended up doing was to *only* use the XO-1 itself (built-in SD slot) for partitioning and for filesystem creates on an SD card. In 2009 I got an external adapter that is built like a tank (but only does SD cards). I have had zero problems using it to initialize SD card filesystems. mikus p.s. I have been cautioned to avoid guessing when I do not *know*. But from using a large number of external USB devices with XO-1s, my guess is that the XO system is sensitive to the 'timings' presented by those USB devices - so that's something to watch out for with USB-SD adapters. Maybe the more recent XO software has gotten to be more tolerant than the earlier software was. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
[Server-devel] Working on the XS F11 rebase
Working on... Packages: * idmgr - rebuilt * usbmont * pam_sotp -- help! doesn't build * ds-backup * ejabberd - rebuilt ** consider rebasing on 2.0.5, this will require remerging and retesting @online@ patches * fakeroot fakechroot: F11 has current versions * kernel-xs: we'll have to get XO-1 and XO-1.5 kernels and initrds... * moodle-xs * olpc-contents: (or equivalent for bitfrost libs) * rssh - looks good on F11 * xs-activation * xs-activity-server * xs-config (lot of work to do!) * xs-logos * xs-pkgs: replace w groups (how? help!) * xs-release (have an intermediate one?) * xs-rsync * xs-tools * olpc-bios-crypto * xs-otp * xs-callhome Plus: * Get a usable installer build from revisor or pungi * Test this thing! You can track it on http://wiki.laptop.org/index.php?title=User:Martinlanghoff/XS_F11_rebase_ToDo cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
[Server-devel] another distro?
Now that we have XS 0.6 in the Stable, I'll raise the issue once more. Are we at a point in development where we can reassess the issue of basing the XS on other distros such as Debian stable or Ubuntu LTS? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor, Information Systems Director, Center for Business Solutions San Francisco State University http://verma.sfsu.edu/ http://cbs.sfsu.edu/ http://is.sfsu.edu/ ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] another distro?
On Fri, Oct 9, 2009 at 6:01 PM, Sameer Verma sve...@sfsu.edu wrote: Now that we have XS 0.6 in the Stable, I'll raise the issue once more. Are we at a point in development where we can reassess the issue of basing the XS on other distros such as Debian stable or Ubuntu LTS? It is definitely quite a bit more work to switch distros :-) Personally I am over the hump with Fedora skills -- my rpm knowledge came back after many (8?) years of neglect, and I now know a ton more than I ever did. If someone does repackage all the xs packages debian format, and shows that there is a workable means of building an installer and controlling the installation, I am all ears. An added bit of work will be to repackage and reimplement the kernel+initramfs magic that I plan to reuse from the XO OS team, so we can run XS on XO-1 and XO-1.5 -- those two will need very different kernels and initramfsen. And the reimplement bit won't be easy: initramfs implementations are in flux on both sides, guaranteeing a ton of fun and sleepless nights. The upside -- of course! -- is the path to LTS. I wish I knew where it was... m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
[Server-devel] fresh XS 0.6 install
fresh 0.6 install went smoothly except for still says Moodle must be installed or upgraded, but probably bogus because pgsql is running and client pc in lan net gets moodle login from school server. have the install instructions been overly pruned? the ejabberd admin password set up is gone. is it still required? are you planning for the next release to prompt for domain and maybe ejabberd admin password during install as timezone and root password are? ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] another distro?
On Fri, Oct 9, 2009 at 11:43 PM, Devon Connolly dev...@gmail.com wrote: How about Gentoo? Can't beat portage. I am still trying to compile an answer for that... :-) m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
