Date: Fri, 15 Jul 2011 21:03:46 +0200 From: Robert Millan <rmh@debian.org> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-mips@freebsd.org Subject: Re: [PATCH] Fix initialization of i8259 controller on MALTA Message-ID: <CAOfDtXNE_KeYNsq5r35mtsC8WBE4hubpmo=3xFZ-jh6xxaDLWw@mail.gmail.com> In-Reply-To: <CAJ-VmomRrFLKTTx%2BMMwgRVU5wSjDA59Tuy%2B6Fnbx0qFXMgVjKA@mail.gmail.com> References: <CAOfDtXMgw%2BTa7=-uDz-O8xVFxAmQqREM7NMpAwgXMzr8mxbNeg@mail.gmail.com> <CAJ-VmomRrFLKTTx%2BMMwgRVU5wSjDA59Tuy%2B6Fnbx0qFXMgVjKA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
2011/7/15 Adrian Chadd <adrian@freebsd.org>: > The obvious question - is QEMU correct here? > > Has anyone tried this on a real board? I can't try a real board. But in case this helps, the comments in sys/dev/ic/i8259.h confirm that the even address is the right place for sending OCW3 commands. So does i8259_init() routine in sys/x86/isa/atpic.c, which also confirms that IMR is the odd address. However, this code is used on x86 only. -- Robert Millan
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAOfDtXNE_KeYNsq5r35mtsC8WBE4hubpmo=3xFZ-jh6xxaDLWw>