RE: [PATCH 09/12] mmc: sd: add support for tuning during uhs initialization

2011-02-18 Thread Nath, Arindam
Hi Zhangfei, > -Original Message- > From: zhangfei gao [mailto:zhangfei@gmail.com] > Sent: Friday, February 18, 2011 4:20 PM > To: Nath, Arindam > Cc: c...@laptop.org; linux-mmc@vger.kernel.org; Su, Henry; Lu, Aaron; > anath@gmail.com > Subject: Re: [PATC

Re: [PATCH 09/12] mmc: sd: add support for tuning during uhs initialization

2011-02-18 Thread zhangfei gao
On Tue, Feb 15, 2011 at 4:35 AM, Arindam Nath wrote: > Host Controller needs tuning during initialization to operate SDR50 > and SDR104 UHS-I cards. Whether SDR50 mode actually needs tuning is > indicated by bit 45 of the Host Controller Capabilities register. > A new command CMD19 has been define

[PATCH 09/12] mmc: sd: add support for tuning during uhs initialization

2011-02-15 Thread Arindam Nath
Host Controller needs tuning during initialization to operate SDR50 and SDR104 UHS-I cards. Whether SDR50 mode actually needs tuning is indicated by bit 45 of the Host Controller Capabilities register. A new command CMD19 has been defined in the Physical Layer spec v3.01 to request the card to send