From mboxrd@z Thu Jan 1 00:00:00 1970 From: aking Date: Mon, 26 May 2014 21:55:58 +0800 Subject: [U-Boot] pxa310 SDHC support. In-Reply-To: <201405261410.24097.marex@denx.de> References: <5382F29E.8000105@163.com> <201405261256.34348.marex@denx.de> <538329FE.6010307@163.com> <201405261410.24097.marex@denx.de> Message-ID: <538347EE.6010707@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 8:10 PM, Marek Vasut wrote: > On Monday, May 26, 2014 at 01:48:14 PM, aking wrote: >> 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? > I believe the pxa_mmc_gen.c is what needs to be used. There is no other PXA MMC > driver in U-Boot mainline. I now noticed it has some basic monahans (pxa3xx) > support too. Could you give out a log with MACRO CONFIG_MMC_TRACE on your pxa27x device ? any initialize ,read ,write, erase operation? Sorry for disturb you. > >>> 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. > Hmmm. > > Best regards, > Marek Vasut -- Best Regards aking_jin