Elkhart Lake CRB Board¶
Intel Atom x6000E Series processor is formally known as Elkhart Lake.
SBL supports EHL CRB platform.
To build SBL for Elkhart Lake platform:
python BuildLoader.py build ehl
The output images are generated under
- Gather Elkhart Lake IFWI firmware image
Users can either download the full IFWI image if the IFWI image release is available, or read the exising IFWI image on the board using SPI programmer. This image contains additional firmware ingredients that are required to boot on Elkhart Lake.
StitchLoader.py currently only supports stitching with boot guard feature disabled.
To stitch with Boot Guard enabled, please use
Stitch SBL images into downloaded BIOS image:
python Platform/ElkhartlakeBoardPkg/Script/StitchLoader.py -i <BIOS_IMAGE_NAME> -s Outputs/ehl/SlimBootloader.bin -o <SBL_IFWI_IMAGE_NAME> where -i = Input file, -o = Output file.
For example, stitching SBL IFWI image
sbl_ehl_ifwi.bin from Elkhart Lake firmware images downloaded:
python Platform/ElkhartlakeBoardPkg/Script/StitchLoader.py -i xxxx.bin -s Outputs/ehl/SlimBootloader.bin -o sbl_ehl_ifwi.bin
For more details on stitch tool, see Stitch Tool on how to stitch the IFWI image with SBL.
Flash the generated
sbl_ehl_ifwi.bin to the target board using DediProg SF100 or SF600 programmer.
Please check the alignment/polarity when connecting Dediprog to the board. Please power off the board before connecting the Dediprog.
Please set the dediprog to flash the ifwi binary from offset 0
The connector labelled J3D4 on the target board is for DediProg.
Please disconnect Deidprog before powering up the board again.
Slimbootloader binary for capsule image¶
Please refer to the build command above or Build Tool.
slimbootloader binary generated in
outputs\ehl\slimbootloader.bin can be used for generating capsule image
Capsule image for Elkhart Lake¶
To generate capsule image for Elkhart Lake platform:
python ./BootloaderCorePkg/Tools/GenCapsuleFirmware.py -p BIOS Outputs/ehl/SlimBootloader.bin -k <Keys> -o FwuImage.bin
For more details on generating capsule image, please refer Generating capsule.
Triggering Firmware Update¶
Please refer to Firmware Update on how to trigger firmware update flow. Below is an example:
To trigger firmware update in SBL shell:
FwuImage.bininto root directory on FAT partition of a USB key
Boot and press any key to enter SBL shell
Observe SBL resets the platform and performs update flow. It resets multiple times to complete the update process.
A sample boot messages from console:
Shell> fwupdate ... ============= Intel Slim Bootloader STAGE1A ============= ... ============= Intel Slim Bootloader STAGE1B ============= ... BOOT: BP0 MODE: 18 BoardID: 0x05 PlatformName: EHL_CRB ... ============= Intel Slim Bootloader STAGE2 ============= ... Jump to payload ... Starting Firmware Update ... =================Read Capsule Image============== ... CapsuleImage: 0x758B4010, CapsuleSize: 0x9E328C HASH verification for usage (0x00000400) with Hash Alg (0x1): Success SignType (0x2) SignSize (0x100) SignHashAlg (0x1) RSA verification for usage (0x00000400): Success Set next FWU state: 0x7F Get current FWU state: 0x7F ... Updating 0x008F3000, Size:0x10000 ................ Finished 1% ... Finished 99% Updating 0x004F1000, Size:0x0E000 ............... Finished 100% Set next FWU state: 0x7D Reset required to proceed with the firmware update. ============= Intel Slim Bootloader STAGE1A ============= ... ============= Intel Slim Bootloader STAGE1B ============= ... BOOT: BP1 MODE: 18 BoardID: 0x05 PlatformName: EHL_CRB ... ============= Intel Slim Bootloader STAGE2 ============= ... =================Read Capsule Image============== ... CapsuleImage: 0x758B4010, CapsuleSize: 0x9E328C HASH verification for usage (0x00000400) with Hash Alg (0x1): Success SignType (0x2) SignSize (0x100) SignHashAlg (0x1) RSA verification for usage (0x00000400): Success Get current FWU state: 0x7D ... Updating 0x008F3000, Size:0x10000 ................ Finished 1% ... Finished 99% Updating 0x004F1000, Size:0x0E000 ............... Finished 100% Set next FWU state: 0x7C Firmware Update status updated to reserved region Set next FWU state: 0x77 Reset required to proceed with the firmware update. ... ==================== OS Loader ==================== Starting Kernel ...
For Elkhart Lake, serial port connector is labelled J5J1 on board
Configure host PuTTY or minicom to 115200bps, 8N1, no hardware flow control.
Booting Yocto Linux¶
You may need to change boot options to boot from USB. See Change Boot Options.
- Download Yocto Linux
- Create bootable USB key. For example: In Windows, Rufus can be used. In Linux, etcher app can be used.
- Boot the bootable OS image from USB key on the board.
Board ID Assignments¶
EHL CRB is assigned with a unique platform ID
Board Platform ID Elkhart Lake 0x05
See Platform ID Detection using GPIOs for more details.
To customize board configurations in
*.dlt file, make sure to specify
PlatformId to the corresponding values for the board.
See Configuration Tools for more details.
Latest Milestone Release¶
Commit ID: 748aeb0eaf50918926e11466960d79ca3333a4f1