mainboard/starlabs: Add StarBook Mk V

Tested using MrChromeBox's `uefipayload_202107` branch:
* Windows 10
* Ubuntu 20.04
* MX Linux 19.4
* Manjaro 21

No known issues.

https://starlabs.systems/pages/starbook-specification

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I090971a9e8d2be5b08be886d00d304607304b645
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56088
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

4 files changed, 154 insertions, 0 deletions

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+# StarBook Mk V
+
+## Specs
+
+- CPU (full processor specs available at https://ark.intel.com)
+    - Intel i7-1165G7 (Tiger Lake)
+    - Intel i3-1110G4 (Tiger Lake)
+- EC
+    - ITE IT5570E
+    - Backlit Keyboard, with standard PS/2 keycodes and SCI hotkeys
+    - Battery
+    - Charger, using AC adapter or USB-C PD
+    - Suspend / resume
+- GPU
+    - Intel® Iris® Xe Graphics
+    - GOP driver is recommended, VBT is provided
+    - eDP 14-inch 1920x1080 LCD
+    - HDMI video
+    - USB-C DisplayPort video
+- Memory
+    - 2 x DDR4 SODIMM
+- Networking
+    - AX201 2230 WiFi / Bluetooth
+- Sound
+    - Realtek ALC256
+    - Internal speakers
+    - Internal microphone
+    - Combined headphone / microphone 3.5-mm jack
+    - HDMI audio
+    - USB-C DisplayPort audio
+- Storage
+    - M.2 PCIe SSD
+    - RTS5129 MicroSD card reader
+- USB
+    - 1280x720 CCD camera
+    - Thunderbolt 4.0 (left)
+    - USB 3.1 Gen 2 Type-A (left)
+    - USB 3.1 Gen 1 Type-A (right)
+    - USB 2.0 Type-A (right)
+
+## Building coreboot
+
+### Preliminaries
+
+Prior to building coreboot the following files are required:
+* Intel Flash Descriptor file (descriptor.bin)
+* Intel Management Engine firmware (me.bin)
+* ITE Embedded Controller firmware (ec.bin)
+
+The files listed below are optional:
+- Splash screen image in Windows 3.1 BMP format (Logo.bmp)
+
+These files exist in the correct location in the StarLabsLtd/blobs repo on GitHub which is used in place of the standard 3rdparty/blobs repo.
+
+### Build
+
+The following commands will build a working image:
+
+```bash
+make distclean
+make defconfig KBUILD_DEFCONFIG=configs/config.starlabs_starbook_tgl
+make
+```
+
+## Flashing coreboot
+
+```eval_rst
++---------------------+------------+
+| Type                | Value      |
++=====================+============+
+| Socketed flash      | no         |
++---------------------+------------+
+| Vendor              | Winbond    |
++---------------------+------------+
+| Model               | 25Q128JVSQ |
++---------------------+------------+
+| Size                | 16 MiB     |
++---------------------+------------+
+| Package             | SOIC-8     |
++---------------------+------------+
+| Internal flashing   | yes        |
++---------------------+------------+
+| External flashing   | yes        |
++---------------------+------------+
+
+#### **Requirements:**
+
+* fwupd version 1.5.6 or later
+* The battery must be charged to at least 30%
+* The charger must be connected (either USB-C or DC Jack)
+* BIOS Lock must be disabled
+* Supported Linux distribution (Ubuntu 20.04 +, Linux Mint 20.1 + elementaryOS 6 +, Manjaro 21+)
+
+**fwupd 1.5.6 or later**
+To check the version of **fwupd** you have installed, open a terminal window and enter the below command:
+
+```
+fwupdmgr --version
+```
+
+This will show the version number. **1.5.6** or greater will work.
+![fwupd version](fwupdVersion.png)
+On Ubuntu 20.04, Ubuntu 20.10, Linux Mint 20.1 and elementaryOS 6, fwupd 1.5.6 can be installed from our PPA with the below terminal commands:
+
+```
+sudo add-apt-repository ppa:starlabs/ppa
+sudo apt update
+sudo apt install fwupd
+```
+
+On Manjaro:
+
+```
+sudo pacman -Sy fwupd-git flashrom-starlabs
+```
+
+Instructions for other distributions will be added once fwupd 1.5.6 is available. If you are not using one of the distributions listed above, it is possible to install coreboot using a Live USB.
+
+**Disable BIOS Lock**
+BIOS Lock must be disabled when switching from the standard AMI (American Megatrends Inc.) firmware to coreboot. To disable BIOS Lock:
+
+1\. Start with your LabTop turned off\. Turn it on whilst holding the **F2** key to access the BIOS settings.
+2\. When the BIOS settings load, use the arrow keys to navigate to the **Advanced** tab\. Here you will see **BIOS Lock**\.
+3\. Press `Enter` to change this setting from **Enabled** to **Disabled**
+
+![Disable BIOS Lock](BiosLock.jpg)
+
+4\. Next, press the `F10` key to **Save & Exit** and then `Enter` to confirm.
+
+#### **Switching Branch**
+
+Switching branch refers to changing from AMI firmware to coreboot, or vice versa.
+
+First, check for new firmware files with the below terminal command:
+
+```
+fwupdmgr refresh --force
+```
+
+Then, to change branch, enter the below terminal command:
+
+```
+fwupdmgr switch-branch
+```
+
+You can then select which branch you would like to use, by typing in the corresponding number:
+![Switch Branch](SwitchBranch.png)
+You will be prompted to confirm, press `y` to continue or `n` to cancel.
+
+Once the switch has been completed, you will be prompted to restart.
+
+The next reboot can take up to **5 minutes,** do not interrupt this process or disconnect the charger. Once the reboot is complete, that's it - you'll continue to receive updates for whichever branch you are using.
+
+You can switch branch at any time.