On Tue, 2016-03-01 at 16:35 +0100, Stefan Roese wrote: > Hi! Hi Stefan,
> > (adding Marek to Cc again) > > On 01.03.2016 14:38, Chin Liang See wrote: > > On Tue, 2016-03-01 at 08:23 +0100, Stefan Roese wrote: > > > On 01.03.2016 07:53, Chin Liang See wrote: > > > > On Mon, 2016-02-29 at 23:55 +0100, Marek Vasut wrote: > > > > > On 02/24/2016 09:59 AM, Bakhvalov, Denis (Nokia - PL/Wroclaw) > > > > > wrote: > > > > > > Hello Heiko, > > > > > > > > > > > > > Which U-Boot version? Which board? > > > > > > > > > > > > This is U-Boot v2016.03-rc1. I have custom board with > > > > > > socfpga > > > > > > Arria5 > > > > > > onboard. > > > > > > > > > > > > > Where does this leading 0xff come from? There seems a > > > > > > > problem > > > > > > > with > > > > > > > your spi nor flash driver? > > > > > > > > > > > > Yes, you're right. I have problems with the driver. As I > > > > > > mentioned > > > > > > in > > > > > > previous mail when I read the contents from the flash some > > > > > > data > > > > > > is > > > > > > corrupted. > > > > > > > > > > > > How to find out if the problem is because U-Boot has no > > > > > > support > > > > > > for > > > > > > my flash (Spansion S25FL512S NOR flash with SPI) or I have > > > > > > not > > > > > > proper > > > > > > configured SPI in U-Boot? > > > > > > > > > > I believe there is a problem with caches , which we still > > > > > didn't > > > > > identify. CCing Dinh and Chin, as they were the last ones > > > > > looking > > > > > into this problem. > > > > > > > > > > For now, try doing "dcache off" before using the QSPI NOR. > > > > > > > > > > > > > We managed to get it work for socfpga. One of the issue dragged > > > > me > > > > long > > > > is the CONFIG_SPI_FLASH_USE_4K_SECTORS. Need to ensure its not > > > > defined > > > > in the defconfig. Hope it helps > > > > > > This is not clear to me. You mean you were able to reproduce and > > > solve this cache (S-bit) related issue by disabling > > > CONFIG_SPI_FLASH_USE_4K_SECTORS? This option is disabled for all > > > SoCFPGA board in mainline. > > > > > > Could you please explain in more details what exactly you did to > > > solve this issue on SPI NOR? > > > > > > > Nope, I am not replicating the issue. My board is having Micron > > instead > > of Spansion flash. In previously, CONFIG_SPI_FLASH_USE_4K_SECTORS > > is > > defined in socfpga as most serial NOR flash are supporting 4k sub > > sector. With that, it would be good to ensure the 4K is undefined. > > > > In this case, wonder any details on the failure? Intermittent? > > I think we are talking about different things here. I'm referring > to Marek mentioning the cache problem (S-bit related) on current > SoCFPGA U-Boot mainline. With caches enabled you can experience > problems on QSPI and on USB (reported from Marek - I didn't test > USB yet). > For QSPI, wonder the issue is on the read or write? > So do you have any updated on this cache / S-bit problem? I am still debugging this as I notice the hub is not able to detect the mass storage. This is only for certain pen drive. > Or can you > use QSPI NOR without any issues on current mainline U-Boot with > caches enabled on your platforms? > The issue I have is on USB only. For NOR, I can ubifsmount and ubifsload with Micron NOR flash without issue. This is with dcache enabled Thanks Chin Liang > Thanks, > Stefan > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
