From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0E1DCC87FCA for ; Fri, 1 Aug 2025 12:34:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3Kh5SdlSvibikUKFhryXYDVTfus/r9Yk+xHdIRL6yqg=; b=qr0fdyQI42R8Tx+h6myyVSSyuQ st9saEi2F3P8rU8NAFbr8tUQqizpA3XlsgfnIlEUQCZK+ZSvCiXu8fKbW5Fmi9c3RByu6Pt8uZnR3 moOS84rFo6X94Fb1gWqu88bfZniS/O22Ady3uY9qMd7PlyFx+PJnORxHaYZs/EnbJBgnOD03gWt2h uAMzlGWvWAYyR0JPKhW72QBy8b7JZyLK6v7r9sHJVd9Hg0U8D35jI61H8P8C5hdJZNexuAV9E7zK4 PCxOsEpzG5ja+3RzztZsSU1aTI+ytSXUFlgFPbYqZBsuxsmoZFuA4QfZ8iy9aeATUlXxXmazj+mua Wol3BI2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uhoy0-00000005z8V-07Dy; Fri, 01 Aug 2025 12:34:32 +0000 Received: from ni.piap.pl ([195.187.100.5]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uhojz-00000005o6t-3QhM; Fri, 01 Aug 2025 12:20:05 +0000 Received: from t19.piap.pl (OSB1819.piap.pl [10.0.9.19]) by ni.piap.pl (Postfix) with ESMTPS id 8E5C3C3EEAC9; Fri, 1 Aug 2025 14:19:56 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 ni.piap.pl 8E5C3C3EEAC9 From: =?utf-8?Q?Krzysztof_Ha=C5=82asa?= To: Stefan Klug Cc: Dafna Hirschfeld , Laurent Pinchart , Heiko Stuebner , Paul Elder , Jacopo Mondi , Ondrej Jirman , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: FYI: i.MX8MP ISP (RKISP1) MI registers corruption In-Reply-To: ("Krzysztof =?utf-8?Q?Ha=C5=82as?= =?utf-8?Q?a=22's?= message of "Wed, 30 Jul 2025 12:30:23 +0200") References: <175308758352.3134829.9472501038683860006@localhost> <175326599663.2811177.16620980968274114885@localhost> <175344176070.2811177.10693943493658922992@localhost> Date: Fri, 01 Aug 2025 14:19:56 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250801_052004_024624_BEABD8D9 X-CRM114-Status: UNSURE ( 6.83 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, reporting from the field :-) At this point I've something like the following: - run camera apps in background (so the clocks etc. are up) - while (analyze_mi -m1 -s10000000 -r -a 0x32E21400 shows errors) { change_clock 0x30388A80 3 3 # 50 MHz change_clock 0x30388A80 0 3 # 200 MHz - the original settings } It all takes a couple of seconds. I guess I made some minor changes to analyze_mi.c, can post it if needed. where change_clock writes directly do the CCM registers (MEDIA_APB_ROOT_CLK) and sets "PRE" and "POST" dividers (3 and 3 =3D 800 MHz / (3 + 1) / (3 + 1) =3D 50 Mhz and the same for 200 Mhz. It appears to work. I'm getting (Connection closed =3D reboot): MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 9,999,999 Register 0x32E21400 mi_ctrl value 0 count 1 MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 16 =3D 50 MHz MEDIA_APB EN mux 2 pre 0 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 9,999,998 Register 0x32E21400 mi_ctrl value 0 count 1 Register 0x32E21400 mi_ctrl value 0x00010001 count 1 MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 16 =3D 50 MHz MEDIA_APB EN mux 2 pre 0 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 9,999,988 Register 0x32E21400 mi_ctrl value 0 count 12 MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 16 =3D 50 MHz MEDIA_APB EN mux 2 pre 0 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 9,999,781 Register 0x32E21400 mi_ctrl value 0 count 206 Register 0x32E21400 mi_ctrl value 0x3C380000 count 3 Register 0x32E21400 mi_ctrl value 0x000FD200 count 5 Register 0x32E21400 mi_ctrl value 0x3C440000 count 3 Register 0x32E21400 mi_ctrl value 0x3C140000 count 2 MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 16 =3D 50 MHz MEDIA_APB EN mux 2 pre 0 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 9,999,999 Register 0x32E21400 mi_ctrl value 0 count 1 MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 16 =3D 50 MHz MEDIA_APB EN mux 2 pre 0 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 9,999,752 Register 0x32E21400 mi_ctrl value 0 count 237 Register 0x32E21400 mi_ctrl value 0x3C140000 count 2 Register 0x32E21400 mi_ctrl value 0x000FD200 count 4 Register 0x32E21400 mi_ctrl value 0x3C380000 count 1 Register 0x32E21400 mi_ctrl value 0x3C440000 count 2 Register 0x32E21400 mi_ctrl value 0x3C2C0000 count 2 MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 16 =3D 50 MHz MEDIA_APB EN mux 2 pre 0 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition Connection to 10.0.9.123 closed by remote host. MEDIA_APB EN mux 2 pre 3 SYSTEM_PLL1_CLK / 4 =3D 200 MHz Register 0x32E21400 mi_ctrl value 0x007A2001 count 10,000,000 Found possibly stable condition --=20 Krzysztof "Chris" Ha=C5=82asa Sie=C4=87 Badawcza =C5=81ukasiewicz Przemys=C5=82owy Instytut Automatyki i Pomiar=C3=B3w PIAP Al. Jerozolimskie 202, 02-486 Warszawa