On Wednesday, November 04, 2015 at 03:36:08 AM, Thomas Chou wrote: > Hi Marek,
Hi! > On 2015年11月04日 01:44, Marek Vasut wrote: > > On Tuesday, November 03, 2015 at 02:22:12 PM, Thomas Chou wrote: > >> Add Altera Generic Quad SPI Controller support. The controller > >> converts SPI NOR flash to parallel flash interface. So it is > >> not like other SPI flash, but rather like CFI flash. > >> > >> Signed-off-by: Thomas Chou <tho...@wytron.com.tw> > >> --- > > > > You might want to look at https://lwn.net/Articles/636882/ , it is the > > driver for the same hardware, but for Linux. But keep in mind that the > > driver had some difficulties getting in, you might want to check the > > discussions in linux-mtd . > > I did check and follow the threads for a while since you pointed me > about it in earlier communication. It is v5 last month. But the author > decided to wait for hardware fix on rdid. I think I had a stake there as well ;-) > Yet I have a different point as I stated in the patch message. It is NOT > a spi-nor since the hardware converted it to parallel interface. It > should be treated more like cfi flash. I think it might be a mistake to > take it as spi-nor. And this might be the hidden cause to prevent the > linux driver getting in. So I wrote it my way. Let me just put an idea here, it might be wrong -- but doesn't this seem like some sort of NVMEM device? See for example: https://lkml.org/lkml/2015/5/21/643 Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
