mb/system76/rpl: Add Bonobo WS 15 as a variant

The Bonobo Workstation 15 (bonw15) is a Raptor Lake-HX board.

Tested with a custom edk2 UefiPayloadPkg.

Working:

- PS/2 keyboard
- I2C HID touchpad
- Both DIMM slots with 5200 MT/s memory
- All M.2 SSD slots
- All USB ports
- Webcam
- Ethernet
- WiFi/Bluetooth
- Integrated graphics using Intel GOP driver
- Internal microphone
- Internal speakers
- Combined 3.5mm headphone + mic audio
- 3.5mm microphone input
- S3 suspend/resume
- Booting Pop!_OS Linux 22.04 with kernel 6.2.7
- TPM 2.0 device

Not working:

- Discrete/Hybrid graphics
- Thunderbolt

Change-Id: I6d4e408604a0c5c5272e841f4093baaf28c790cd
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75276
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 66 insertions, 0 deletions

diff --git a/Documentation/mainboard/index.md b/Documentation/mainboard/index.md
index 605f741dde72..e311198f58d1 100644
--- a/Documentation/mainboard/index.md
+++ b/Documentation/mainboard/index.md
@@ -207,6 +207,7 @@ The boards in this section are not real mainboards, but emulators.
 - [Adder Workstation 2](system76/addw2.md)
 - [Adder Workstation 3](system76/addw3.md)
 - [Bonobo Workstation 14](system76/bonw14.md)
+- [Bonobo Workstation 15](system76/bonw15.md)
 - [Darter Pro 6](system76/darp6.md)
 - [Darter Pro 7](system76/darp7.md)
 - [Darter Pro 8](system76/darp8.md)
diff --git a/Documentation/mainboard/system76/bonw15.md b/Documentation/mainboard/system76/bonw15.md
new file mode 100644
index 000000000000..db32efe26f25
--- /dev/null
+++ b/Documentation/mainboard/system76/bonw15.md
@@ -0,0 +1,65 @@
+# System76 Bonobo Workstation 15 (bonw15)
+
+## Specs
+
+- CPU
+  - Intel Core i9-13900HX
+- Chipset
+  - Intel HM770
+- EC
+  - ITE IT5570E running [System76 EC](https://github.com/system76/ec)
+- Graphics
+  - dGPU options:
+    - NVIDIA GeForce RTX 4080
+    - NVIDIA GeForce RTX 4090
+  - eDP 17.3" 3840x2160@144Hz LCD (BOE NE173QUM-NY1)
+  - 1x HDMI 2.1
+  - 1x Mini DisplayPort 1.4
+  - 2x DisplayPort 1.4 over USB-C
+- Memory
+  - Up to 64GB (2x32GB) dual-channel DDR5 SO-DIMMs @ 5200 Mhz
+- Networking
+  - Onboard Intel Killer Ethernet E3100X 2.5 GbE
+  - M.2 NVMe/CNVi WiFi/Bluetooth (Intel Wi-Fi 6 AX210/211)
+- Power
+  - 330W (19.5V, 16.42A) AC adapter (Chicony A20-330P1A)
+    - Rectangular connector; not a barrel connector
+  - 99Wh 8-cell Lithium-ion battery
+- Sound
+  - Realtek ALC1220 codec
+  - Realtek ALC1318 smart amp
+  - Internal speakers and microphone
+  - Combined 3.5mm headphone & microphone jack
+  - Combined 3.5mm microphone & S/PDIF jack
+  - HDMI, mDP, USB-C DP audio
+- Storage
+  - 3x M.2 PCIe NVMe Gen 4 SSDs
+- USB
+  - 2x USB Type-C with Thunderbolt 4
+  - 2x USB 3.2 Gen 2 Type-A
+- Dimensions
+  - 2.49cm x 39.6cm x 27.8cm, 3.29kg
+
+## Flashing coreboot
+
+```eval_rst
++---------------------+---------------------+
+| Type                | Value               |
++=====================+=====================+
+| Socketed flash      | no                  |
++---------------------+---------------------+
+| Vendor              | GigaDevice          |
++---------------------+---------------------+
+| Model               | GD25B256E           |
++---------------------+---------------------+
+| Size                | 32 MiB              |
++---------------------+---------------------+
+| Package             | WSON-8              |
++---------------------+---------------------+
+| Internal flashing   | yes                 |
++---------------------+---------------------+
+| External flashing   | yes                 |
++---------------------+---------------------+
+```
+
+The flash chip (U58) is next to the left M.2 port.