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. --Ed _______________________________________________ flashrom mailing list [email protected] https://mail.coreboot.org/mailman/listinfo/flashrom
