From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38785) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fJloD-0000NN-21 for qemu-devel@nongnu.org; Fri, 18 May 2018 16:17:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fJlo9-0001jq-Ox for qemu-devel@nongnu.org; Fri, 18 May 2018 16:17:01 -0400 Received: from relay1.mentorg.com ([192.94.38.131]:49262) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fJlo9-0001jJ-I9 for qemu-devel@nongnu.org; Fri, 18 May 2018 16:16:57 -0400 Date: Fri, 18 May 2018 21:16:48 +0100 From: Julian Brown Message-ID: <20180518211648.5d849941@octopus> In-Reply-To: <49dbe9f7-0558-12d4-363a-fe13099f86bd@denx.de> References: <8f1a519f9faa6ea16df5040c45bb2d5d7dfb8d50.1526671191.git.julian@codesourcery.com> <49dbe9f7-0558-12d4-363a-fe13099f86bd@denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v3 1/2] Add generic Nios II board. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Marek Vasut Cc: qemu-devel@nongnu.org, Sandra Loosemore , Chris Wulff , Andrew Jenner On Fri, 18 May 2018 21:50:55 +0200 Marek Vasut wrote: > On 05/18/2018 09:23 PM, Julian Brown wrote: > > This patch adds support for a generic MMU-less Nios II board that > > can be used e.g. for bare-metal compiler testing. Nios II booting > > is also tweaked so that bare-metal binaries start executing in RAM > > starting at 0x00000000, rather than an alias at 0xc0000000, which > > allows features such as unwinding to work when binaries are linked > > to start at the beginning of the address space. > > > So why dont you just use the 10m50 GHRD for this , why do you need > custom board ? I think because we wanted a board with no MMU, since our startup code doesn't support that. Maybe Andrew can confirm/deny? Thanks, Julian