Bartlett Lake P CRB

Overview

Bartlett Lake processor is a 64-bit multi-core processor built on Intel 7 process Technology. Bartlett Lake is based on a Hybrid architecture, utilizing P-cores for performance and E-Cores for efficiency.

The S-Processor line is a 2-Chip Platform that includes the Processor Die and Platform Controller Hub (PCH-S) Die in the Package.

For more information about Raptor Lake Processor lines, P-cores, and E-cores please refer to BTL.

This board configuration enables kernel support for the Bartlett Lake S boards.

Hardware

The intel_btl_s_crb board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

`intel_btl_s_crb/raptor_lake` target

Type	Location	Description	Compatible
CPU	on-chip	Intel Bartlett Lake CPU1	`intel,bartlett-lake`
DMA	on-chip	LPSS DMA Controller10	`intel,lpss`
GPIO & Headers	on-chip	Intel GPIO13	`intel,gpio`
I2C	on-chip	Synopsys DesignWare I2C8	`snps,designware-i2c`
Interrupt controller	on-chip	Intel I/O Advanced Programmable Interrupt Controller (APIC)1	`intel,ioapic`
	on-chip	Local Advanced Programmable Interrupt Controller (APIC)1	`intel,loapic`
	on-chip	Intel VT-D Interrupt Remapping Controller1	`intel,vt-d`
Miscellaneous	on-chip	Intel TGPIO1	`intel,timeaware-gpio`
PCIe	on-chip	Generic PCIe host controller1	`pcie-controller`
PWM	on-chip	Intel blinky PWM1	`intel,blinky-pwm`
RTC	on-chip	Motorola MC146818 compatible Real Timer Clock1	`motorola,mc146818`
Serial controller	on-chip	ns16550 UART1 3	`ns16550`
SMbus	on-chip	Intel Platform Controller Hub SMBus1	`intel,pch-smbus`
SPI	on-chip	Intel Penwell SPI3	`intel,penwell-spi`
Timer	on-chip	HPET (High-Precision Event Timer)1	`intel,hpet`
Watchdog	on-chip	Intel TCO Watchdog1	`intel,tco-wdt`

General information about the board can be found at the BTL website.

Connections and IOs

Refer to the BTL website for more information.

Programming and Debugging

Use the following procedures for booting an image for an Bartlett Lake S CRB board.

Build Zephyr application 

Build a Zephyr application; for instance, to build the hello_world application for Bartlett Lake S CRB:
```
# From the root of the zephyr repository
west build -b intel_btl_s_crb samples/hello_world
```
Note

A Zephyr EFI image file named zephyr.efi is automatically created in the build directory after the application is built.

Preparing the Boot Device

Prepare a USB flash drive to boot the Zephyr application image on a board.

Format the USB flash drive as FAT32.

On Windows, open File Explorer, and right-click on the USB flash drive. Select Format.... Make sure in File System, FAT32 is selected. Click on the Format button and wait for it to finish.

On Linux, graphical utilities such as gparted can be used to format the USB flash drive as FAT32. Alternatively, under terminal, find out the corresponding device node for the USB flash drive (for example, /dev/sdd). Execute the following command:
```
$ mkfs.vfat -F 32 <device-node>
```
Important

Make sure the device node is the actual device node for the USB flash drive. Or else you may erase other storage devices on your system, and will render the system unusable afterwards.
Copy the Zephyr EFI image file zephyr/zephyr.efi to the USB drive.

Booting Zephyr on a board

Boot the board to the EFI shell with USB flash drive connected.

Insert the prepared boot device (USB flash drive) into the board.
Connect the board to the host system using the serial cable and configure your host system to watch for serial data. See board’s website for more information.

Note

Use a baud rate of 115200.
Power on the board.
When the following output appears, press F7:
```
Press <DEL> or <ESC> to enter setup.
```
From the menu that appears, select the menu entry that describes that particular EFI shell.
From the EFI shell select Zephyr EFI image to boot.
```
Shell> fs0:zephyr.efi
```
When the boot process completes, you have finished booting the Zephyr application image.