59 lines
1.3 KiB
Plaintext
59 lines
1.3 KiB
Plaintext
= Pinephone =
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The pinephone is a cheap generic linux phone.
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== u-boot ==
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See [[u-boot]]
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== Gentoo ==
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=== Cross compiler ===
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First, we will be compiling on a host gentoo system. To do this, first install
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crossdev and the needed toolchain (See [[cross_toolchain]]).
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If your host system is not gentoo, be sure to install a cross compiler for
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aarch64.
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*The pinephone triple is aarch64-unknown-linux-gnu*
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{{{
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emerge -av git ninja crossdev
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crossdev --target arm-none-eabi
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}}}
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=== GPU Support ===
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The pinephone pro uses a Mali T860 quadcore CPU, and therefore is run using the
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lima drivers. In the phones make.conf, be sure to add
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{{{
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#/etc/portage/make.conf (chroot in phone)
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VIDEO_CARDS="lima"
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}}}
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In your global use, be sure to add
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{{{
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#/etc/portage/make.conf (chroot in phone)
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USE="gles gles2-only"
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}}}
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This ensures that we will only compile programs using OpenGL ES, or OpenGL for
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embedded systems.
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== Troubleshooting ==
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=== Phone not booting due to fully drained battery ===
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Battery voltage will be ~2.4V when dead in my experience. To get the phone to
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boot
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1) Remove SDcard
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2) Remove battery, serial, and usb cables
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3) Reinstert the battery
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4) Hold down the RESET button
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5) While holding the button down, connect the USB port to a computer
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6) let go of the button
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7) in `lsusb` you should see `2207:330c Rockship electrions`
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