From patchwork Tue Oct 25 18:06:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ~axelheider X-Patchwork-Id: 13025334 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3474CFA373D for ; Mon, 31 Oct 2022 02:17:38 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1opKLM-0001BB-Pf; Sun, 30 Oct 2022 22:16:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1opKL9-000167-Fn; Sun, 30 Oct 2022 22:15:51 -0400 Received: from mail-b.sr.ht ([173.195.146.151]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1opKL7-00035v-PJ; Sun, 30 Oct 2022 22:15:51 -0400 Authentication-Results: mail-b.sr.ht; dkim=none Received: from git.sr.ht (unknown [173.195.146.142]) by mail-b.sr.ht (Postfix) with ESMTPSA id 941A711F279; Mon, 31 Oct 2022 02:15:46 +0000 (UTC) From: ~axelheider Date: Tue, 25 Oct 2022 20:06:20 +0200 Subject: [PATCH qemu.git 07/11] hw/timer/imx_epit: do not persist CR.SWR bit Message-ID: <166718254546.5893.5075929684621857903-7@git.sr.ht> X-Mailer: git.sr.ht In-Reply-To: <166718254546.5893.5075929684621857903-0@git.sr.ht> To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, peter.maydell@linaro.org MIME-Version: 1.0 Received-SPF: pass client-ip=173.195.146.151; envelope-from=outgoing@sr.ht; helo=mail-b.sr.ht X-Spam_score_int: 36 X-Spam_score: 3.6 X-Spam_bar: +++ X-Spam_report: (3.6 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_96_XX=3.405, FREEMAIL_FORGED_REPLYTO=2.095, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ~axelheider Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Axel Heider Signed-off-by: Axel Heider --- hw/timer/imx_epit.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/timer/imx_epit.c b/hw/timer/imx_epit.c index 2e4ff89613..bba9c87cd4 100644 --- a/hw/timer/imx_epit.c +++ b/hw/timer/imx_epit.c @@ -175,9 +175,12 @@ static void imx_epit_reload_compare_timer(IMXEPITState *s) static void imx_epit_write_cr(IMXEPITState *s, uint32_t value) { uint32_t freq = 0; + + /* SWR bit is never persisted, it clears itself once reset is done */ uint32_t oldcr = s->cr; - s->cr = value & 0x03ffffff; - if (s->cr & CR_SWR) { + s->cr = (value & ~CR_SWR) & 0x03ffffff; + + if (value & CR_SWR) { /* handle the reset */ imx_epit_reset(DEVICE(s)); /* @@ -189,7 +192,7 @@ static void imx_epit_write_cr(IMXEPITState *s, uint32_t value) ptimer_transaction_begin(s->timer_cmp); ptimer_transaction_begin(s->timer_reload); - if (!(s->cr & CR_SWR)) { + if (!(value & CR_SWR)) { freq = imx_epit_set_freq(s); }