installation/guides/arm-devices: add pinebook-pro page

Author: classabbyamp

src/installation/guides/arm-devices/pinebook-pro.md

@@ -0,0 +1,34 @@
+# Pinebook Pro
+
+The Pinebook Pro is a Rockchip RK3399-based laptop.
+
+See Pine64's [documentation](https://pine64.org/documentation/Pinebook_Pro) for
+more information.
+
+## Installation
+
+The live ISO provided by Void is generic and does not have U-Boot integrated.
+You need to provide your own firmware installed on the internal SPI flash, eMMC,
+or an SD card, such as
+[Tow-Boot](https://tow-boot.org/devices/pine64-pinebookPro.html) or
+[rk2aw](https://xnux.eu/rk2aw/).
+
+Boot an aarch64 Void Linux live ISO using one of the "Void Linux for Pinebook
+Pro" menu entries in GRUB.
+
+To install, follow the [chroot install guide](../chroot.md), using the "XBPS
+method", observing the following modifications:
+
+For the base installation, install both `base-system` and `pinebookpro-base`.
+This package provides important configurations and installs the necessary
+dependencies.
+
+Before running `grub-install`, append the following to `/etc/default/grub`:
+
+```
+GRUB_CMDLINE_LINUX_DEFAULT="$GRUB_CMDLINE_LINUX_DEFAULT console=ttyS2,115200 video=eDP-1:1920x1080x60"
+GRUB_DEFAULT_DTB="rockchip/rk3399-pinebook-pro.dtb"
+```
+
+> Note: if using another bootloader, ensure the kernel cmdline arguments
+> `console=ttyS2,115200 video=eDP-1:1920x1080x60` are used.