Hi Juinee, Thank you for your reply but I already saw that configuration section for eMMC (BTW do you have a .csv example).
I was interested on how to change the register of host From document number 557556: hostctrl1_datawidth from: 22.5.15HostControl1 Register (hostcontrol1)-Offset 28h Bit range 1 Or the host pull up/down strength hostctrl2_driverstrength From: 22.9.29Host Control2 Register (hostcontrol2)-Offset 3Eh Bit range 5:4 Regards, Francesco From: Tan, Jui Nee [mailto:jui.nee....@intel.com] Sent: Wednesday, August 02, 2017 10:44 AM To: Francesco Camarda (fcamarda) <fcama...@micron.com>; meta-intel@yoctoproject.org Subject: [EXT] RE: Apollo lake GR ABL change mmc host configuration You may need to refer to the ABL Configuration Guide: http://www.intel.com/cd/edesign/library/asmo-na/eng/572371.htm Under section 4.15, it lists down ABL config data that can be used to tune eMMC interface. Thanks, Juinee From: meta-intel-boun...@yoctoproject.org<mailto:meta-intel-boun...@yoctoproject.org> [mailto:meta-intel-boun...@yoctoproject.org] On Behalf Of Francesco Camarda (fcamarda) Sent: Tuesday, July 25, 2017 12:20 AM To: meta-intel@yoctoproject.org<mailto:meta-intel@yoctoproject.org> Subject: [meta-intel] Apollo lake GR ABL change mmc host configuration Hello, which is the right way to change the mmc host driver strength in a ifwi (Integrated FW Image) yocto build of the Automotive boot loader (ABL) and not the bios to boot the Gordon (peak) Ridge (soc) MRB Regards, Francesco
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