From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id cCqZIcRiB2DBfgAA0tVLHw (envelope-from ) for ; Tue, 19 Jan 2021 22:52:52 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id wLtmHcRiB2CCfwAAB5/wlQ (envelope-from ) for ; Tue, 19 Jan 2021 22:52:52 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 4B92A940341 for ; Tue, 19 Jan 2021 22:52:52 +0000 (UTC) Received: from localhost ([::1]:60358 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l1zrn-00068N-5t for larch@yhetil.org; Tue, 19 Jan 2021 17:52:51 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:54248) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1zcD-00062s-Vt for guix-devel@gnu.org; Tue, 19 Jan 2021 17:36:45 -0500 Received: from mail-40141.protonmail.ch ([185.70.40.141]:15297) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1zcA-00087Y-KV for guix-devel@gnu.org; Tue, 19 Jan 2021 17:36:45 -0500 Date: Tue, 19 Jan 2021 22:36:33 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail; t=1611095799; bh=5vjA4ArX49c8wRWQn/PmH2pp9vBbbwZHIjrkPBXu0Q8=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=wGQswU8yWn0QKRSNrpzETHTCeHV74ScUw1FW0KSfJr8i3o3pwbnNyNrxsNqi/dCmt PRdtXsuM45PAA3mF0J+Q1QQ2NzLsRrXgFBNTWXvW052pJllaFrjlmoDyL3hVn6dK4z CtR84aN2BG4xS9xoDWvKiHBs/moYtufWj7y2t/Fw= To: Vincent Legoll Subject: Re: Staging branch [substitute availability armhf-linux] Message-ID: In-Reply-To: References: <87im7vhpo9.fsf@gnu.org> <87lfcrx3yn.fsf@gnu.org> <877dobx1wl.fsf@gnu.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=185.70.40.141; envelope-from=calnomble@protonmail.com; helo=mail-40141.protonmail.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Tue, 19 Jan 2021 17:52:35 -0500 X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel , Mathieu Othacehe Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" Reply-to: Caliph Nomble X-ACL-Warn: , Caliph Nomble From: calnomble--- via "Development of GNU Guix and the GNU System distribution." X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -2.85 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=protonmail.com header.s=protonmail header.b=wGQswU8y; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: 4B92A940341 X-Spam-Score: -2.85 X-Migadu-Scanner: scn1.migadu.com X-TUID: 8escGLJY/k5+ Hi, > > LCD output, nothing answering on serial console (@1.5Mbps > > (uboot speed) or 115.2Kbps (kernel speed, I think)). Both kernel and u-boot use 1500000 baud. > Strange, seems that Caliph did manage to get a serial console. Caliph, > any insight here? A configuration close to the pinebook-pro-barebones-os configuration worked= for me software-wise (albiet, without LCD output), but there's a few hardware tweaks that need to be done to get it working. On the mainboard there's two switches: an eMMC disable switch and a serial output switch. The serial out= put switch needs to be set properly to get serial out through the headphone jac= k. Nominally you should also disable the internal eMMC if there's anything on = it in order to use Guix's u-boot, but I wasn't able to get the switch to work = so I just removed the eMMC flash. From the log posted earlier, it does look like that's the case, so it's booting from the factory-default 2017 u-boot with blobs. I just realized that the configuration I used had one (significant) change: agetty needs to be started on /dev/ttyS2, not /dev/ttyS0. I have just submi= tted a patch to fix this (https://issues.guix.gnu.org/45997). To get the LCD up, I used an inferior with linux-libre-pinebook-pro from th= e wip-pinebook-pro branch, and included some kernel arguments from janneke th= at Mathieu told me about, though I'm unsure how necessary they are with the ke= rnel patches. I have also heard that disabling CONFIG_ROCKCHIP_CDN_DP on mainlin= e would work too, but I haven't tested it. I'll attach a config that should work to bring up serial and the LCD. Hope this helps.