On Wed, Jun 21, 2017 at 6:51 PM, Ed Swierk <[email protected]> wrote:
> On Mon, Apr 17, 2017 at 9:54 PM, David Hendricks > <[email protected]> wrote: > > Getting 4-byte address support in is something I'm interested in as > well. In fact I have parts coming in the mail this week :-) > > > > On Mon, Apr 17, 2017 at 6:43 PM, Alex Henderson < > [email protected]> wrote: > >> > >> Hi there: > >> > >> I just started experimenting with flashrom using a > Dediprog SF600 this weekend. I noticed that there’s no support for any of > the 256Mb or 512Mb SPI NOR parts (4 byte addressing an issue?). > > > > > > The Dediprog SF600 has commands for 4-byte addressing, but I was not > able to get them working in the time I had to play with it. We can probably > also ask Dediprog if they have an updated command spec, maybe there was a > problem in the one I was looking at. > > > >> > >> Is there a newer version than 0.9.9 that I should try? I did find that > the Google fork for chromeOS has a number of these parts (W25Q256, N25Q256, > SST_25F256). > > > > > > Yes, but the systems those went in treated them as 16MB parts. The > firmware (coreboot) is small so there wasn't really need for the extra > space. > > > >> I would be happy to try an unreleased version & report > results. I can also test with an FTDI232 based programmer. The boards I can > test with currently have various versions of 25q512, 25q256, 25q128 and > 25q32. Functionality with the smaller parts looks good. > > I'm a bit late to the party here, but in case it's relevant: I > successfully programmed a Micron N25Q512, which is a 64 MByte SPI > flash with 4-byte addressing, using patches originally from Boris > Baykov on top of a more current flashrom. See > https://github.com/skyportsystems/flashrom/commits/master . > > Both FT232H module and STM32 Blue Pill board with stm32-vserprog > firmware work as programmers. > Nice! I've also had success with Boris's patches, as have others: https://review.coreboot.org/#/c/19525/ . That version is squashed, though, so perhaps the patches in your repo will be better for merging. I also uploaded a patch to enable 4BA support on the Dediprog SF600 which Alex might be interested in trying out: https://review.coreboot.org/#/c/19858/
_______________________________________________ flashrom mailing list [email protected] https://mail.coreboot.org/mailman/listinfo/flashrom
