From nobody Mon Feb 9 14:37:52 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1561669344; cv=none; d=zoho.com; s=zohoarc; b=oVbqpL9FrlNrJC9bcV9eM6LIyz0sC+f3vTGMEDEV1tpyVjYGxKqbGoMj9bbpezhnLW34T4KWHlI6um8CGLNr9GHN6vx9PvApnfxBDGh0slcdPhrrJ/hk1dB/T2hx99JpRG4iuMrDTUFXHjbZ1oowaLQGRW/9/DrRUOCgNwgboKM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1561669344; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=p4W2j2XTFVlfC09dQ1we+NJMMYZEBLTirnpaiMEGT4s=; b=OU87iXzB72xmWqq20FdaD5x3bSIBMDz8mX5ia2bkbZSvgOFbqBJfskbod+vbCPMkD4RXC4b7QpgyU9htwTjoIigBMe2Ja/dYDMH+Y/pWbaM+ieTyddF1wcZV7F2vkI7XIolV6kIr8FivrjmsHEVgb65kalHZFcZ2zHvh68PL9SU= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1561669344676119.40605195537933; Thu, 27 Jun 2019 14:02:24 -0700 (PDT) Received: from localhost ([::1]:54454 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hgbWm-0008Un-2G for importer@patchew.org; Thu, 27 Jun 2019 17:01:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46889) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hgb3D-0004RO-IC for qemu-devel@nongnu.org; Thu, 27 Jun 2019 16:31:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hgb34-0003HY-9o for qemu-devel@nongnu.org; Thu, 27 Jun 2019 16:31:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53196) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hgb2p-0002rm-UF; Thu, 27 Jun 2019 16:31:01 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8446830C5833; Thu, 27 Jun 2019 20:30:57 +0000 (UTC) Received: from x1w.redhat.com (ovpn-204-69.brq.redhat.com [10.40.204.69]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5F6DD600CC; Thu, 27 Jun 2019 20:30:52 +0000 (UTC) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: Stephen Checkoway , qemu-devel@nongnu.org Date: Thu, 27 Jun 2019 22:27:17 +0200 Message-Id: <20190627202719.17739-27-philmd@redhat.com> In-Reply-To: <20190627202719.17739-1-philmd@redhat.com> References: <20190627202719.17739-1-philmd@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Thu, 27 Jun 2019 20:30:57 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v5 26/28] hw/block/pflash_cfi02: Reduce single byte/word write delay X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Laurent Vivier , Thomas Huth , qemu-block@nongnu.org, Peter Maydell , John Snow , Paolo Bonzini , Alistair Francis , Magnus Damm , Markus Armbruster , Max Reitz , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Michael Walle , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Antony Pavlov , "Edgar E. Iglesias" , Jan Kiszka , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Aurelien Jarno , David Gibson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Signed-off-by: Stephen Checkoway Message-Id: <20190426162624.55977-5-stephen.checkoway@oberlin.edu> [PMD: Extracted from bigger patch] Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- TODO: Why? To respect the datasheet? Which model is this? --- hw/block/pflash_cfi02.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c index b2d37c33bb..e9519cbae8 100644 --- a/hw/block/pflash_cfi02.c +++ b/hw/block/pflash_cfi02.c @@ -857,8 +857,8 @@ static void pflash_cfi02_realize(DeviceState *dev, Erro= r **errp) pfl->cfi_table[0x1D] =3D 0x00; /* Vpp max (no Vpp pin) */ pfl->cfi_table[0x1E] =3D 0x00; - /* Timeout per single byte/word write (128 ms) */ - pfl->cfi_table[0x1F] =3D 0x07; + /* Timeout per single byte/word write (16 us) */ + pfl->cfi_table[0x1F] =3D 0x04; /* Timeout for min size buffer write (NA) */ pfl->cfi_table[0x20] =3D 0x00; /* Typical timeout for block erase (512 ms) */ --=20 2.20.1