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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1AC7C432C3 for ; Tue, 19 Nov 2019 14:22:45 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 86C29222A9 for ; Tue, 19 Nov 2019 14:22:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 86C29222A9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:46034 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iX4Oy-0007yi-BX for qemu-devel@archiver.kernel.org; Tue, 19 Nov 2019 09:22:44 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:42005) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iX4Fy-0006Qp-L7 for qemu-devel@nongnu.org; Tue, 19 Nov 2019 09:13:28 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iX4Fw-0005R3-Hb for qemu-devel@nongnu.org; Tue, 19 Nov 2019 09:13:26 -0500 Received: from 5.mo1.mail-out.ovh.net ([178.33.45.107]:60327) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iX4Fv-0005Po-Hu for qemu-devel@nongnu.org; Tue, 19 Nov 2019 09:13:24 -0500 Received: from player795.ha.ovh.net (unknown [10.108.57.211]) by mo1.mail-out.ovh.net (Postfix) with ESMTP id 85C9319BC9B for ; Tue, 19 Nov 2019 15:13:20 +0100 (CET) Received: from kaod.org (deibp9eh1--blueice1n4.emea.ibm.com [195.212.29.166]) (Authenticated sender: clg@kaod.org) by player795.ha.ovh.net (Postfix) with ESMTPSA id 9BA1DC18AAE1; Tue, 19 Nov 2019 14:13:12 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: Peter Maydell Subject: [PATCH 07/17] aspeed/scu: Fix W1C behavior Date: Tue, 19 Nov 2019 15:12:01 +0100 Message-Id: <20191119141211.25716-8-clg@kaod.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191119141211.25716-1-clg@kaod.org> References: <20191119141211.25716-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Ovh-Tracer-Id: 17906312122056477457 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedufedrudegkedgiedvucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdqfffguegfifdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvufffkffojghfgggtgfesthekredtredtjeenucfhrhhomhepveorughrihgtucfnvgcuifhorghtvghruceotghlgheskhgrohgurdhorhhgqeenucfkpheptddrtddrtddrtddpudelhedrvdduvddrvdelrdduieeinecurfgrrhgrmhepmhhouggvpehsmhhtphdqohhuthdphhgvlhhopehplhgrhigvrhejleehrdhhrgdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomheptghlgheskhgrohgurdhorhhgpdhrtghpthhtohepqhgvmhhuqdguvghvvghlsehnohhnghhnuhdrohhrghenucevlhhushhtvghrufhiiigvpeef Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 178.33.45.107 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: Andrew Jeffery , qemu-devel@nongnu.org, qemu-arm@nongnu.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Joel Stanley Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Joel Stanley This models the clock write one to clear registers, and fixes up some incorrect behavior in all of the write to clear registers. There was also a typo in one of the register definitions. Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Joel Stanley [clg: checkpatch.pl fixes ] Signed-off-by: C=C3=A9dric Le Goater --- hw/misc/aspeed_scu.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index 717509bc5460..f62fa25e3474 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -98,7 +98,7 @@ #define AST2600_CLK_STOP_CTRL TO_REG(0x80) #define AST2600_CLK_STOP_CTRL_CLR TO_REG(0x84) #define AST2600_CLK_STOP_CTRL2 TO_REG(0x90) -#define AST2600_CLK_STOP_CTR2L_CLR TO_REG(0x94) +#define AST2600_CLK_STOP_CTRL2_CLR TO_REG(0x94) #define AST2600_SDRAM_HANDSHAKE TO_REG(0x100) #define AST2600_HPLL_PARAM TO_REG(0x200) #define AST2600_HPLL_EXT TO_REG(0x204) @@ -532,11 +532,13 @@ static uint64_t aspeed_ast2600_scu_read(void *opaqu= e, hwaddr offset, return s->regs[reg]; } =20 -static void aspeed_ast2600_scu_write(void *opaque, hwaddr offset, uint64= _t data, - unsigned size) +static void aspeed_ast2600_scu_write(void *opaque, hwaddr offset, + uint64_t data64, unsigned size) { AspeedSCUState *s =3D ASPEED_SCU(opaque); int reg =3D TO_REG(offset); + /* Truncate here so bitwise operations below behave as expected */ + uint32_t data =3D data64; =20 if (reg >=3D ASPEED_AST2600_SCU_NR_REGS) { qemu_log_mask(LOG_GUEST_ERROR, @@ -563,15 +565,22 @@ static void aspeed_ast2600_scu_write(void *opaque, = hwaddr offset, uint64_t data, /* fall through */ case AST2600_SYS_RST_CTRL: case AST2600_SYS_RST_CTRL2: + case AST2600_CLK_STOP_CTRL: + case AST2600_CLK_STOP_CTRL2: /* W1S (Write 1 to set) registers */ s->regs[reg] |=3D data; return; case AST2600_SYS_RST_CTRL_CLR: case AST2600_SYS_RST_CTRL2_CLR: + case AST2600_CLK_STOP_CTRL_CLR: + case AST2600_CLK_STOP_CTRL2_CLR: case AST2600_HW_STRAP1_CLR: case AST2600_HW_STRAP2_CLR: - /* W1C (Write 1 to clear) registers */ - s->regs[reg] &=3D ~data; + /* + * W1C (Write 1 to clear) registers are offset by one address fr= om + * the data register + */ + s->regs[reg - 1] &=3D ~data; return; =20 case AST2600_RNG_DATA: --=20 2.21.0