I guess - your using Xilinx github u-boot-xlnx The reason for two prints is like, for 1) Initial probe print, by default done in env calls 2) Added in sf probe again on auto-boot commands [1]
[1] https://github.com/Xilinx/u-boot-xlnx/blob/master/include/configs/zynq-common.h On Sat, Jun 28, 2014 at 10:51 PM, Heshsham Abdul Basit <hf.ba...@gmail.com> wrote: > Hi, > > I am re-sending this email because earlier I forgot to put the subject line > properly. I am struggling to figure out few things in u-boot , but I failed > to get a good resource or help. > > This is a section of the log from u-boot running on Avnet Microzed board: > > > [Thu Jun 26 17:40:53.656 2014] > > [Thu Jun 26 17:40:53.656 2014] > > [Thu Jun 26 17:40:53.656 2014] U-Boot 2013.07 (Jun 26 2014 - 17:34:41) > > [Thu Jun 26 17:40:53.656 2014] > > [Thu Jun 26 17:40:53.656 2014] 1 GiB > > [Thu Jun 26 17:40:53.671 2014] SF: Detected > S25FL129P_64K/S25FL128S_64K with page size 64 KiB, total 16 MiB > > [Thu Jun 26 17:40:53.703 2014] *** Warning - bad CRC, using default > environment > > [Thu Jun 26 17:40:53.703 2014] > > [Thu Jun 26 17:40:53.703 2014] In: serial > > [Thu Jun 26 17:40:53.703 2014] Out: serial > > [Thu Jun 26 17:40:53.703 2014] Err: serial > > [Thu Jun 26 17:40:53.703 2014] U-BOOT for suheb_24 > > [Thu Jun 26 17:40:53.703 2014] > > [Thu Jun 26 17:40:53.703 2014] > > [Thu Jun 26 17:40:53.703 2014] SF: Detected > S25FL129P_64K/S25FL128S_64K with page size 64 KiB, total 16 MiB > > [Thu Jun 26 17:40:54.453 2014] SF: 5242880 bytes @ 0x520000 Read: OK > > [Thu Jun 26 17:40:54.453 2014] Description: PetaLinux Kernel > > [Thu Jun 26 17:40:54.453 2014] 0x010000f0 > > [Thu Jun 26 17:40:54.453 2014] 4620145 Bytes = 4.4 MiB > > [Thu Jun 26 17:40:54.453 2014] Description: Flattened Device Tree blob > > [Thu Jun 26 17:40:54.453 2014] 0x01468114 > > [Thu Jun 26 17:40:54.453 2014] 9766 Bytes = 9.5 KiB > > [Thu Jun 26 17:40:54.453 2014] Hash algo: crc32 > > [Thu Jun 26 17:40:54.453 2014] Hash value: 9a94aca8 > > [Thu Jun 26 17:40:54.453 2014] Hash algo: sha1 > > [Thu Jun 26 17:40:54.453 2014] Hash value: > 97b81e3014decb706ff19e61e1227dace97d4232 > > [Thu Jun 26 17:40:54.453 2014] crc32+ sha1+ Uncompressing Kernel Image ... > OK > > . > .I noticed that the following lines are coming twice: > > SF: Detected S25FL129P_64K/S25FL128S_64K with page size 64 KiB, total 16 MiB > > This corresponds to the function spi_flash_probe from > drivers/mtd/spi/spi_flash.c > > > I need to know: > > 1- Why it is probed twice? > 2- The name and location of the file from where it is called (twice). > 3- The second time it is being probed is considerably slow, why it is so? > > > I have searched many forums and have looked in the code but still I am not > able to figure out these things. > > > > Thanks and regards, > > Abdul Basit > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > thanks! -- Jagan. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
