Re: [PATCH] mmc: core: Fix init_card in 52Mhz

2015-10-07 Thread kbuild test robot
Hi Chaotian, [auto build test ERROR on v4.3-rc4 -- if it's inappropriate base, please ignore] config: i386-randconfig-i1-201540 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): drivers/mmc/c

[PATCH] mmc: core: Fix init_card in 52Mhz

2015-10-07 Thread Chaotian Jing
Suppose that we got a data crc error, and it triggers the mmc_reset. mmc_reset will call mmc_send_status to see if HW reset was supported. before issue CMD13, it will do retune, and if EMMC was in HS400 mode, it will reduce frequency to 52Mhz firstly, then results in card init was doing at 52Mhz. T

Re: [PATCH] mmc: core: Fix init_card in 52Mhz

2015-09-30 Thread Adrian Hunter
On 30/09/15 12:03, Chaotian Jing wrote: > On Wed, 2015-09-30 at 11:24 +0300, Adrian Hunter wrote: >> On 30/09/15 06:28, Chaotian Jing wrote: >>> Suppose that we got a data crc error, and it triggers the mmc_reset. >>> mmc_reset will call mmc_send_status to see if HW reset was supported. >>> before

Re: [PATCH] mmc: core: Fix init_card in 52Mhz

2015-09-30 Thread Chaotian Jing
On Wed, 2015-09-30 at 11:24 +0300, Adrian Hunter wrote: > On 30/09/15 06:28, Chaotian Jing wrote: > > Suppose that we got a data crc error, and it triggers the mmc_reset. > > mmc_reset will call mmc_send_status to see if HW reset was supported. > > before issue CMD13, it will do retune, and if EMMC

Re: [PATCH] mmc: core: Fix init_card in 52Mhz

2015-09-30 Thread Adrian Hunter
On 30/09/15 06:28, Chaotian Jing wrote: > Suppose that we got a data crc error, and it triggers the mmc_reset. > mmc_reset will call mmc_send_status to see if HW reset was supported. > before issue CMD13, it will do retune, and if EMMC was in HS400 mode, > it will reduce frequency to 52Mhz firstly,

[PATCH] mmc: core: Fix init_card in 52Mhz

2015-09-29 Thread Chaotian Jing
Suppose that we got a data crc error, and it triggers the mmc_reset. mmc_reset will call mmc_send_status to see if HW reset was supported. before issue CMD13, it will do retune, and if EMMC was in HS400 mode, it will reduce frequency to 52Mhz firstly, that results in card init was doing at 52Mhz, S