From mboxrd@z Thu Jan 1 00:00:00 1970 From: aking Date: Mon, 26 May 2014 19:54:54 +0800 Subject: [U-Boot] pxa310 SDHC support. In-Reply-To: <201405261256.34348.marex@denx.de> References: <5382F29E.8000105@163.com> <201405261059.49294.marex@denx.de> <53831761.4070208@163.com> <201405261256.34348.marex@denx.de> Message-ID: <53832B8E.7070608@163.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 5/26/2014 Monday 6:56 PM, Marek Vasut wrote: > On Monday, May 26, 2014 at 12:28:49 PM, aking_jin wrote: >> Hi, Marek >> >> On 2014/5/26 Mon 16:59, Marek Vasut wrote: >>> On Monday, May 26, 2014 at 09:51:58 AM, aking_jin wrote: >>>> Hi, marek >>>> >>>> I've seen on the Internet that pxa310 support SDHC up to 32GB, but >>>> >>>> I'm using u-boot 2014.01, It could initialize OK. >>>> >>>> Device: PXA MMC >>>> Manufacturer ID: 3 >>>> OEM: 5344 >>>> Name: SS08G >>>> Tran Speed: 26000000 >>>> Rd Block Len: 512 >>>> SD version 3.0 >>>> High Capacity: Yes >>>> Capacity: 7.4 GiB >>>> Bus Width: 4-bit >>>> >>>> It shows time out while reading block . Is there any particular >>>> >>>> process should be add? >>> It is well possible that the driver is broken on PXA3xx . Note that >>> mainline U- Boot doesn't really support PXA3xx . Are you working on >>> PXA3xx support for mainline U-Boot ? >> I'm looking for support for pxa310 MMC SDHC . >> In the PXA310 SPEC: >> >> The MMC module is based on the standards outlined in the >> MultiMediaCard System >> Specification Version 3.3.1. The SD module manages one SD or SDIO card >> based on the standards >> outlined in the SD Memory Card Specification Version 1.10 and SDIO Card >> Specification Version >> 1.0 >> >> I'm doubting if the controller support SDHC (SD 2.0) ? > The PXA27x controller works even with SDXC , that is tested. I suspect there > might be some change in the PXA3xx controller, but I don't really know for sure. > You'd have to check. Thank you for your answer. are you using SD mode or SPI Mode? which version are you using? > Also, you didn't really answer my question with regards to porting U-Boot above. > If you do that, use latest mainline, not 2014.01 . I just have to add SD support for my board, It's emergency. sorry for that. > > Best regards, > Marek Vasut -- Best Regards aking_jin