From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chin Liang See Date: Tue, 1 Mar 2016 14:53:04 +0800 Subject: [U-Boot] Problem with attaching UBI partition In-Reply-To: <56D4CC57.8000901@gmail.com> References: <56CCA0E0.6050902@denx.de> <56D4CC57.8000901@gmail.com> Message-ID: <1456815184.2100.5.camel@altera.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 Thanks Chin Liang