Hi Drasko, On Wed, Oct 28, 2015 at 10:14 AM, Drasko DRASKOVIC <drasko.drasko...@gmail.com> wrote: > Hi Paul, > You can actually write the falsh via U-Boot, it has a necessary SPI > flash driver. Goal here is just to put U-Boot in the RAM via JTAG., > then you are good. > > Yegor, > From what I see WRTNode exposes standard JTAG header, meaning that all > you need to do is write a correct TCL script to set-up the CPU and > RAM. > > I would suggest that you take a look at U-Boot procedures and see what > registers it sets in order to set-up RAM correctly. > > You would probably end up with something like this: > https://github.com/pepe2k/u-boot_mod/issues/2, and I see no reason for > this not to work - unless JTAG header is not routed correctly in HW...
You're right. Will try this, when I have the hardware. > Best regards, > Drasko > > > > On Wed, Oct 28, 2015 at 10:01 AM, Yegor Yefremov > <yegorsli...@googlemail.com> wrote: >> Hi Paul, >> >> On Wed, Oct 28, 2015 at 9:31 AM, Paul Fertser <fercer...@gmail.com> wrote: >>> Hi, >>> >>> On Wed, Oct 28, 2015 at 07:21:36AM +0100, Yegor Yefremov wrote: >>>> does OpenOCD support such devices? So far I couldn't find such a target. >>> >>> OpenOCD can talk to many EJTAG devices so it might work with this one >>> too. But just talking won't help much, see below. >>> >>>> I'd like to play with this device: >>>> http://wiki.wrtnode.com/index.php?title=Starting and I feel safer, if >>>> I can still use the system regardless of it's flash content. >>> >>> If you want to reprogram an SPI flash memory contents, you'll need to >>> either write a driver for the target's spi controller or to access the >>> IC directly. I recommend you buy a suitable SOIC clamp and use any of >>> the programmers supported by flashrom (see "ISP" section on their >>> wiki). >> >> I've also thought about such workaround, but debugging >> bootloader/kernel comes in question too. I'd like to use UBIFS and as >> far as I can see such WiSoCs have support for really ancient U-Boot, >> that doesn't provide UBI support. The situation has changed for >> AR9331, because it was included into Barebox tree, but for mt7620 I >> could find nothing. >> >> Do you have any experience using UBIFS with SPI flashes? >> >> Yegor >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> OpenOCD-devel mailing list >> OpenOCD-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/openocd-devel ------------------------------------------------------------------------------ _______________________________________________ OpenOCD-devel mailing list OpenOCD-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openocd-devel
