Hi Ard, I have checked the patch and it looks good.
However, I can no longer test the patch as the new DwMmc driver no longer uses the protocol. Sorry for the delay, I initially thought I can test it until I investigated further today. Thanks > -----Original Message----- > From: Pankaj Bansal <pankaj.ban...@nxp.com> > Sent: Monday, April 27, 2020 2:19 PM > To: Ard Biesheuvel <ard.biesheu...@arm.com>; Leif Lindholm > <l...@nuviainc.com>; Gaurav Jain <gaurav.j...@nxp.com>; Meenakshi > Aggarwal <meenakshi.aggar...@nxp.com> > Cc: devel@edk2.groups.io; Haojian Zhuang <haojian.zhu...@linaro.org>; Loh, > Tien Hock <tien.hock....@intel.com>; Varun Sethi <v.se...@nxp.com> > Subject: RE: [PATCH 1/1] EmbeddedPkg/MmcDxe: Added MaxBlock Transfer > Limit 65535 in R/W. > > + Meenakshi > > > -----Original Message----- > > From: Ard Biesheuvel <ard.biesheu...@arm.com> > > Sent: Monday, April 6, 2020 7:42 PM > > To: Leif Lindholm <l...@nuviainc.com>; Gaurav Jain > > <gaurav.j...@nxp.com> > > Cc: devel@edk2.groups.io; Pankaj Bansal <pankaj.ban...@nxp.com>; > > Haojian Zhuang <haojian.zhu...@linaro.org>; Loh, Tien Hock > > <tien.hock....@intel.com> > > Subject: Re: [PATCH 1/1] EmbeddedPkg/MmcDxe: Added MaxBlock Transfer > > Limit 65535 in R/W. > > > > On 4/6/20 4:08 PM, Leif Lindholm wrote: > > > Hi Gaurav, > > > > > > Haojian, Tien Hock - can you help review/test this change? > > > > > > Best Regards, > > > > > > Leif > > > > > > On Fri, Apr 03, 2020 at 14:54:07 +0530, Gaurav Jain wrote: > > >> Moved BlockCount calculation below BufferSize Validation checks. > > >> First Ensure Buffersize is Not Zero and multiple of Media BlockSize. > > >> then calculate BlockCount and perform Block checks. > > >> > > >> Corrected BlockCount calculation, as BufferSize is multiple of > > >> BlockSize, So adding (BlockSize-1) bytes to BufferSize and then > > >> divide by BlockSize will have no impact on BlockCount. > > >> > > >> Reading Large Images from MMC causes errors. > > >> As per SD Host Controller Spec version 4.20, Restriction of 16-bit > > >> Block Count transfer is 65535. > > >> Max block transfer limit in single cmd is 65535 blocks. > > >> Added Max Block check that can be processed is 0xFFFF. > > >> then Update BlockCount on the basis of MaxBlock. > > >> > > >> Signed-off-by: Gaurav Jain <gaurav.j...@nxp.com> > > > > > > Hello Gaurav, > > > > Could you please elaborate on the underlying need for this change? If > > you are considering using this driver for future NXP platforms, I > > should point out that this legacy driver is only kept around for > > existing users, and new users should use the driver stack in > > MdeModulePkg, which is based on the UEFI spec. > > > > -- > > Ard. > > > > > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#58295): https://edk2.groups.io/g/devel/message/58295 Mute This Topic: https://groups.io/mt/72744881/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
