From mboxrd@z Thu Jan 1 00:00:00 1970 From: pawel.moll@arm.com (Pawel Moll) Date: Tue, 01 Oct 2013 17:39:15 +0100 Subject: [PATCH] ARM: vexpress: ignore MIDR[0] for uart detection In-Reply-To: References: <1380449869-19911-1-git-send-email-yrehan@gmail.com> Message-ID: <1380645555.30015.8.camel@hornet> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, 2013-10-01 at 09:11 +0100, Mian Yousaf Kaukab wrote: > Can you please take a look at this patch? Default vexpress_defconfig > does not boot on qemu vexpress-a9 target without it. Right, I think I've heard about it... To be honest, I have rather mixed feelings about it. In particular I could say that if qemu returns r0p0, it doesn't model V2P-CA9, which has A9 r0p1 :-) Also, the DEBUG_LL and EARLY_PRINTK are pretty low level features and it seems that they simply shouldn't be enabled in the defconfig. As I'll be updating defconfig soon, I'll make sure they're disabled. Yes, I agree that the "detection" code is a hack. I'm not sure we have to make it even hackier. Let me have a think about it, as I can't really spend any time of the matter this week, sorry. Thanks for your efforts! Pawel