Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Shawn Lin
On 2016/9/22 18:21, Ulf Hansson wrote: On 22 September 2016 at 12:06, Shawn Lin wrote: Hi ulf, 在 2016/9/22 17:38, Ulf Hansson 写道: On 21 September 2016 at 03:43, Shawn Lin wrote: Per JESD84-B51 P69, Host need to change frequency to

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Shawn Lin
On 2016/9/22 18:21, Ulf Hansson wrote: On 22 September 2016 at 12:06, Shawn Lin wrote: Hi ulf, 在 2016/9/22 17:38, Ulf Hansson 写道: On 21 September 2016 at 03:43, Shawn Lin wrote: Per JESD84-B51 P69, Host need to change frequency to <=52MHz after setting HS_TIMING to 0x1, and host may

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Ulf Hansson
On 22 September 2016 at 12:06, Shawn Lin wrote: > Hi ulf, > > 在 2016/9/22 17:38, Ulf Hansson 写道: >> >> On 21 September 2016 at 03:43, Shawn Lin wrote: >>> >>> Per JESD84-B51 P69, Host need to change frequency to <=52MHz after >>> setting

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Ulf Hansson
On 22 September 2016 at 12:06, Shawn Lin wrote: > Hi ulf, > > 在 2016/9/22 17:38, Ulf Hansson 写道: >> >> On 21 September 2016 at 03:43, Shawn Lin wrote: >>> >>> Per JESD84-B51 P69, Host need to change frequency to <=52MHz after >>> setting HS_TIMING to 0x1, and host may changes frequency to <=

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Shawn Lin
Hi ulf, 在 2016/9/22 17:38, Ulf Hansson 写道: On 21 September 2016 at 03:43, Shawn Lin wrote: Per JESD84-B51 P69, Host need to change frequency to <=52MHz after setting HS_TIMING to 0x1, and host may changes frequency to <= 200MHz after setting HS_TIMING to 0x3. It

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Shawn Lin
Hi ulf, 在 2016/9/22 17:38, Ulf Hansson 写道: On 21 September 2016 at 03:43, Shawn Lin wrote: Per JESD84-B51 P69, Host need to change frequency to <=52MHz after setting HS_TIMING to 0x1, and host may changes frequency to <= 200MHz after setting HS_TIMING to 0x3. It seems there is no difference

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Ulf Hansson
On 21 September 2016 at 03:43, Shawn Lin wrote: > Per JESD84-B51 P69, Host need to change frequency to <=52MHz after > setting HS_TIMING to 0x1, and host may changes frequency to <= 200MHz > after setting HS_TIMING to 0x3. It seems there is no difference if > we don't

Re: [PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-22 Thread Ulf Hansson
On 21 September 2016 at 03:43, Shawn Lin wrote: > Per JESD84-B51 P69, Host need to change frequency to <=52MHz after > setting HS_TIMING to 0x1, and host may changes frequency to <= 200MHz > after setting HS_TIMING to 0x3. It seems there is no difference if > we don't change frequency to <= 52MHz

[PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-20 Thread Shawn Lin
Per JESD84-B51 P69, Host need to change frequency to <=52MHz after setting HS_TIMING to 0x1, and host may changes frequency to <= 200MHz after setting HS_TIMING to 0x3. It seems there is no difference if we don't change frequency to <= 52MHz as f_init is already less than 52MHz. But actually it

[PATCH 3/5] mmc: core: changes frequency to hs_max_dtr when selecting hs400es

2016-09-20 Thread Shawn Lin
Per JESD84-B51 P69, Host need to change frequency to <=52MHz after setting HS_TIMING to 0x1, and host may changes frequency to <= 200MHz after setting HS_TIMING to 0x3. It seems there is no difference if we don't change frequency to <= 52MHz as f_init is already less than 52MHz. But actually it