From 5884c94b1f92c00406d137c9f308c098e5268a59 Mon Sep 17 00:00:00 2001
From: PA4WDH
Date: Tue, 13 Jul 2021 19:47:04 +0200
Subject: Initial commit

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+<h1>Unmatched Patchwork</h1>
+<p>
+ This is an overlay voor the Gentoo Linux distribution, it is intended for
+ owners of the <a href="https://www.sifive.com/boards/hifive-unmatched">SiFive
+ HiFive Unmatched RISC-V PC</a>.
+</p>
+<h2>Why this overlay?</h2>
+<p>
+ Running Gentoo Linux on the Unmatched requires some modifications to some
+ packages. Some are specific to this specific board, others are for RISC-V in
+ general.
+</p>
+<p>
+ Instead of keeping all those patches for myself I decided to share and hope it
+ will help someone else too. This is actually the first overlay I'm sharing, so
+ feedback is appreciated. You're quite likely to find me on the
+ <a href="https://forums.gentoo.org">Gentoo forums</a> or the
+ <a href="https://forums.sifive.com">SiFive forums</a>.
+</p>
+<h2>What is in this overlay?</h2>
+<p>
+ This overlay contains a few packages:
+</p>
+<ul>
+ <li>media-video/mplayer: mplayer with a patch for it's configure script to accept RISC-V</li>
+ <li>sys-apps/sysvinit: sysvinit patched so that the "reboot" command does the
+     same als "halt" because the Unmatched can't rebooti and will be stuck
+     if you do</li>
+ <li>sys-boot/grub: Grub with patches to allow loading linux</li>
+ <li>sys-boot/opensbi: OpenSBI with patches from SiFive</li>
+ <li>sys-boot/u-boot: u-boot with patches from SiFive. Also has USE flags to
+     set the CPU Frequency and prioritize EFI booting (required for grub)</li>
+ <li>sys-kernel/sifive-sources: gentoo-sources with patches from SiFive</li>
+</ul>
+<h2>How to use this overlay?</h2>
+<p>
+ First you'll have to clone this overlay on a place you like. A common place
+ these days is <b>/var/db/repos</b>. So cd into that direcoty and use
+ <b>git clone https://code.pa4wdh.nl.eu.org/gentoo/unmatched-patchwork</b>,
+ this will create a directory called unmatched-patchwork with the overlay in
+ it.
+</p>
+<p>
+ Next you have to make portage aware of the repo, for that you'll have to
+ create a config file under <b>/etc/portage/repos.conf</b>. Create a file
+ called <b>unmatched-patchwork.conf</b> and give it these contents:
+</p>
+<pre>
+[unmatched-patchwork]
+location = /var/db/repos/unmatched-patchwork
+sync-type = git
+sync-uri = https://code.pa4wdh.nl.eu.org/gentoo/unmatched-patchwork
+</pre>
+<p>
+ If you placed the overlay on a different place than <b>/var/db/repos</b> make
+ sure to adapt the <b>location</b> line to your needs.
+</p>
+<h2>What can i do with this?</h2>
+<p>
+ For me booting with grub has great value, it allows me to boot different
+ kernels via it's menu. This allows me to experiment with different kernel
+ versions and configurations, and i don't run into problems if it somehow
+ doesn't boot.
+</p>
+<p>
+ Mplayer is my favorite media player and is nice to get quick results. Even
+ if you don't have a GPU you can test video with aalib :-).
+</p>
+<p>
+ Have fun!
+</p>
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