From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 03 May 2021 11:50:38 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1ldVDp-0002kx-Ri for lore@lore.pengutronix.de; Mon, 03 May 2021 11:50:38 +0200 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ldVDp-00025J-1e for lore@pengutronix.de; Mon, 03 May 2021 11:50:37 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZCASnArrhbSOVg6B50vjtzwt+9OtNXREDma+xQ0RYVU=; b=Id7jpFeJ2ELW3FvOjollI7V+P rZinv5oh5Rx9xzdulJ7ljqvK4ondz1w/dypJ9WCooZjTs3GH6KrPJH+xUGuTr1iwRtLctqulxJ9Aa SwSf2TFkW63DxfNxfB3f/ng99Nen/XptYTHBDhY1H64afqk9dYojjglwBbn40gqxwp5sn+96bMAOE Jv1Yf8eFrHnVglPQRhzIiAMND1FiDRploonN0sMt4Qc0R+V4atepnBduK8U0n6C9VGkRuO4Cbj/di 4VsQjyMkZ1UySUZj24j0pp3K8/dSo8RVwwQiFp8Lz5/cTqZkYvif7s3H2EzUAVneYaiDQQI64UeAr O3P2qTbjg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1ldVBu-00Da0e-7P; Mon, 03 May 2021 09:48:38 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1ldVBj-00Da09-Vf for barebox@desiato.infradead.org; Mon, 03 May 2021 09:48:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:To: Subject:Sender:Reply-To:Cc:Content-ID:Content-Description; bh=AW7WtixLiUt6EYuoVVeH1iC6pz/yHnRV2jArL+ac7Pk=; b=FJ+3ZLcz1Gk2fYTQZfp3dscFZo n4C2rbZiH9GAicAZWRkWeDtHOXXPqSLl80oqlHw1CPWUOtVv9c4oqslWLFiCcVVv0qFufRNuK9dnj cOeIQKq0oZHJ/Agy1ZimEJK+1B09JXZMfX+36uGrUdtBh5lGrvecii4dcsmU+H83g/tkF/F4+0KZZ pNN/qJWgk4m7Bo60XP+GZf99ZHycDuiRoHPWB+3O8O002EB2xw8fR4OoukfrTji+s715DVmhptCq9 CXQLL+4lra429XIpkpY43ApMN7IBEc51bGm05givCFbQl6LhuutUVegLbrjkqJAfLsyLlSfPHfMJT L9ffFJAg==; Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1ldVBh-002xJ7-2b for barebox@lists.infradead.org; Mon, 03 May 2021 09:48:26 +0000 Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=[IPv6:::1]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1ldVBc-0001tF-WC; Mon, 03 May 2021 11:48:21 +0200 To: jameszxj , barebox References: From: Ahmad Fatoum Message-ID: <23cb4075-b53a-6421-61bf-ac8c54dd8ccf@pengutronix.de> Date: Mon, 3 May 2021 11:48:20 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210503_024825_150113_37ED9168 X-CRM114-Status: GOOD ( 17.12 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2001:8b0:10b:1:d65d:64ff:fe57:4e05 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-3.6 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: Are there any operations may influence WFI instruction? X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Hi, On 01.05.21 15:20, jameszxj wrote: > Hi, > I run rtems6 on my imx6ull board, just initialize a GPT timer to flash a LED. You can describe heartbeat LED in the barebox device tree just as you'd do in Linux and barebox will take care to blink it during bootstrap. No need to involve interrupts. > I load rtems with barebox, after output some initialized messages, system enters shell and stalls, interrupt(GPT timer, arch7 timer for tick) do not happen again. Shell (connect to UART1,interrupt mode) still works, when I type something, the LED flashes. It seems that system only responses to UART1 interrupt, and triggers the other interrupts respones. I remove wfi instruction from idle task, system runs ok. > And when I replace barebox with uboot, everything seems OK. I think maybe some initialized differences between barebox and uboot, but I haven't find any clues that may influence WFI. barebox on i.MX uses one of the available GPT timers as clocksource. HTH, Ahmad > > > Any suggestion? > _______________________________________________ > barebox mailing list > barebox@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox