Hi, I am not having any luck with my usb-dongle set up for the mainline efika-mx. I think I will have to drop this approach. Who can I contact to request a serial-connector for my efika-mx? I can return it when I'm done with the testing and development for MMC.
Plan B is to look for a different board for my MMC development. (I leave for holiday soon, back on Monday) Br Per On 6 February 2011 02:25, Matt Sealey <m...@genesi-usa.com> wrote: > I think the problem is USB might not work in the checkout you've got - > Arnaud Patard submitted a patch to mainline: > > http://www.spinics.net/lists/linux-usb/msg41678.html > > I have some severe disagreements with the real patch that went in. You > should use sascha's for-next tree if possible as this is quite > possibly the "most working". > > -- > Matt Sealey <m...@genesi-usa.com> > Product Development Analyst, Genesi USA, Inc. > > > > On Sat, Feb 5, 2011 at 3:10 PM, Per Forlin <per.for...@linaro.org> wrote: >> On 5 February 2011 01:24, Matt Sealey <m...@genesi-usa.com> wrote: >>> To be frank, *absolutely do not touch U-Boot*. Linaro does not offer >>> support for either the Smartbook in U-Boot (it's not even been pushed >>> to mainline yet) and I am fairly certain that the Smartbook in the >>> kernel is not supported enough to get a reasonably working system. >>> There's a very good chance you will brick something and not be able to >>> recover it. >> Thanks for your advice. I wont touch the u-boot unless I have to. >> >>> >>> You say you have USB-serial, does that mean you have the little flat >>> serial cable from under the keyboard and dongle attached? I don't >>> understand what you mean by having a small ramfs with USB-serial >>> support (debug support is not via USB, it's a special debug board. I >>> know this is not terribly friendly, but it is how it is). >> I don't have the serial/JTAG connector that connects under the >> keyboard. I only have a normal usb-serial dongle. What I would like to >> accomplish is to run some benchmark on the mmc controller. I have some >> patches to improve mmc-performance that I would like to run on the >> efika-mx. So far I have only test results for U8500 and U5500 >> (ST-Ericsson boards). >> If I could get a debug connector that make my life easier :) But not >> having that I thought usb-serial will do, if I can get it to work. >> >> Using an usb-serial dongle I can login to the efika-mx over uart, >> ttyUSB0 in my case. If the system hangs before the ttyUSB0 is set up I >> wont be able to login and I wont see anything. Therefore I am making a >> small ramfs to boot up a reliable system that only support enough to >> bring up the ttyUSB0. From that point I can add modules for the rest >> of my system in a controlled manner. >> >>> >>> Serial settings are 115200,8n1 if not set explicitly I would start >>> there (sometimes when rebooting systems will put some odd characters >>> from the FIFO and it messes up speed detection). You probably need to >>> make sure serial support is compiled into the kernel - check the >>> config. It may not be! The Linaro kernel MAY have enough from the >>> linux-imx branch to support the Smartbook but it may also not be >>> configured correctly. >>> >>> Please tell us your kernel boot arguments, give me a pointer to a git >>> repository or commit of a Linaro branch I can look at to confirm what >>> you're running. >> I first tried the kernel at git >> git://gitorious.org/efikamx/linux-kernel.git. I works but the patches >> I want to test for mmc is based on 2.6.38. So I tried running mainline >> kernel. There is a Kconfig option for "efika mx netbook" I thought it >> might work. The mx51_defconfig enables both MMC and USB so it looks >> promising. I also tried Sascha's tree for mx51 and Linaro's tree. I >> don't need a full system only support for MMC and USB for now. >> It could be that I run into a trivial boot failure but I can't see it >> since I don't have a real uart. >> >> If anyone have a working mainline kernel for efika-mx with usb-serial >> support I would like to see the defconfig. >> >> Thanks, >> Per >> >>> >>> -- >>> Matt Sealey <m...@genesi-usa.com> >>> Product Development Analyst, Genesi USA, Inc. >>> >>> >>> >>> On Fri, Feb 4, 2011 at 4:58 PM, Per Forlin <per.for...@linaro.org> wrote: >>>> Hi, >>>> >>>> I am trying to boot my efikamx netbook with the Linaro 37 kernel. I >>>> only have a usb-serial interface so I can't really see where I get >>>> stuck. >>>> I manage to boot a small ramfs with usb-serial suppport on the Genesi >>>> kernel 2.6.31.14.12, but I haven't succeeded to get any usb-serial >>>> output on the Linaro 37 kernel. >>>> I still use the u-boot provided by Genesi. I will switch to the Linaro >>>> u-boot tomorrow to see if that helps. >>>> >>>> Is anyone running a mainline kernel on efika-mx together with an >>>> usb-serial-connection? >>>> >>>> Thanks, >>>> Per >>>> >>>> _______________________________________________ >>>> linaro-dev mailing list >>>> linaro-dev@lists.linaro.org >>>> http://lists.linaro.org/mailman/listinfo/linaro-dev >>>> >>> >> > _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
