add openbsd instructions

diff --git a/doc/OpenBSD.txt b/doc/OpenBSD.txt
new file mode 100644 (file)
index 0000000..a756090
--- /dev/null
+++ b/doc/OpenBSD.txt
@@ -0,0 +1,5 @@
+https://cdn.openbsd.org/pub/OpenBSD/snapshots/arm64/install70.img
+18:56 < kettenis> the mini works fine
+18:57 < kettenis> just remember that with the current DTB all machines default to serial console
+18:57 < kettenis> so you'll have to type "set tty fb0" at the boot> prompt
+19:13 < kettenis> but if you already have u-boot running, the standard instructions from INSTALL.arm64 are all you need