From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.savoirfairelinux.com ([208.88.110.44]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dfWCO-00074o-Li for barebox@lists.infradead.org; Wed, 09 Aug 2017 18:59:22 +0000 Date: Wed, 9 Aug 2017 14:58:53 -0400 From: =?iso-8859-1?Q?Ga=EBl?= PORTAY Message-ID: <20170809185853.lvlar7vyder6supt@gportay> References: <20170809041320.28874-1-gael.portay@savoirfairelinux.com> <0ec3c31c-1ede-6108-28bc-af15ab67d0f9@rempel-privat.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <0ec3c31c-1ede-6108-28bc-af15ab67d0f9@rempel-privat.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH 0/2] readline_simple: return -1 if getc fails To: Oleksij Rempel Cc: barebox@lists.infradead.org Hi, On Wed, Aug 09, 2017 at 08:05:57AM +0200, Oleksij Rempel wrote: > Am 09.08.2017 um 06:13 schrieb Ga=EBl PORTAY: > > Dear maintainers, > > = > > I came accross this issue when I was trying to add support for a new MI= PS > > board. > = > Just out of curiosity, what MIPS board are you working on? If it is not > a secret :) > = I am working on VoCore2[1]; it is a board based on a mediatek mt7628 CPU. I am doing this to learn myself how works barebox = Offtopic: For now it is booting on a really really old version of u-boot. I= am able de boot barebox from u-boot. I had to hack the mips_disable_interrupts= to remove the reset of flag ERL in CP0; but I don't know why yet. This flag is supposed to be set when CPU reboots; but because I am running barebox from = a the command go of u-boot, this flag is unset. Are you able to re-run barebox from barebox on your MIPS board? .macro mips_disable_interrupts .set push .set noreorder mfc0 k0, CP0_STATUS - li k1, ~(ST0_ERL | ST0_IE) + li k1, ~ST0_IE and k0, k1 mtc0 k0, CP0_STATUS .set pop .endm For now, I have splitted mips_disable_interrupts into two macros. The second macro mips_reset_error_level checks if the ERL flag is armed before resetti= ng it to 0. .macro mips_reset_error_level .set push .set noreorder mfc0 k0, CP0_STATUS li k1, ST0_ERL and k1, k0 bne k1, zero, 1f li k1, ~(ST0_ERL) and k0, k1 mtc0 k0, CP0_STATUS 1: .set pop .endm But I don't know if this is the right thing to do. = [1]: https://www.indiegogo.com/projects/vocore2-4-coin-sized-linux-computer= -with-wifi#/ _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox