From patchwork Mon Feb 12 23:47:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Helge Deller X-Patchwork-Id: 13554174 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 795B5C4829E for ; Mon, 12 Feb 2024 23:49:12 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rZg1b-0003DG-Am; Mon, 12 Feb 2024 18:47:47 -0500 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 1rZg1Z-0003CO-KU for qemu-devel@nongnu.org; Mon, 12 Feb 2024 18:47:45 -0500 Received: from sin.source.kernel.org ([145.40.73.55]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rZg1X-00008P-4i for qemu-devel@nongnu.org; Mon, 12 Feb 2024 18:47:45 -0500 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 69DA0CE17E6; Mon, 12 Feb 2024 23:47:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6ADBCC433F1; Mon, 12 Feb 2024 23:47:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707781658; bh=vqjS4Tn8JsTETJjKAhscWBmZAWUWeDAIiHK9Uvc1mpY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NtPjrtq+hvNwgMVahFvUmUaA4tlGLNc6VAQe9oxFkepfJswZURWRuLstexr5dPHdL Gyfs2dIdeUOzuB6sNx8B1wDfChmlzwaCcYhLVu8+IOvhl8GudDfddSvgydvtxtIRiw HJwJzs6JWrsPHKYBIZ0f0eg1k3xk5G5hcOpigbxYQXDxTLDwyXv8KS2IbwFCm4Pxku YtAWLLwyCm9fAPAuhJyZk2M0MEe5L+RTywZY3w/rNijK9Pg+hb/bMKltRI50ekL/w/ q9VcvbwxBwpw7lIPiE7smQbcOmy9SW/h9iAQrUXQHnKViTEovBA3f+fpHz2knn1KT+ FIxDLDRqL84fQ== From: deller@kernel.org To: qemu-devel@nongnu.org Cc: Richard Henderson , Sven Schnelle , Jason Wang , Helge Deller Subject: [PULL 07/12] lasi: Add reset I/O ports for LASI audio and FDC Date: Tue, 13 Feb 2024 00:47:18 +0100 Message-ID: <20240212234723.222847-8-deller@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240212234723.222847-1-deller@kernel.org> References: <20240212234723.222847-1-deller@kernel.org> MIME-Version: 1.0 Received-SPF: pass client-ip=145.40.73.55; envelope-from=deller@kernel.org; helo=sin.source.kernel.org X-Spam_score_int: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.774, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Helge Deller Linux writes zeroes at bootup into the default ports for LASI audio and LASI floppy controller to reset those devices. Allow writing to those registers to avoid HPMCs. Signed-off-by: Helge Deller --- hw/misc/lasi.c | 11 +++++++++++ include/hw/misc/lasi.h | 2 ++ 2 files changed, 13 insertions(+) diff --git a/hw/misc/lasi.c b/hw/misc/lasi.c index 9cfa5bb316..970fc98b5c 100644 --- a/hw/misc/lasi.c +++ b/hw/misc/lasi.c @@ -36,10 +36,13 @@ static bool lasi_chip_mem_valid(void *opaque, hwaddr addr, case LASI_IAR: case LASI_LPT: + case LASI_AUDIO: + case LASI_AUDIO + 4: case LASI_UART: case LASI_LAN: case LASI_LAN + 12: /* LASI LAN MAC */ case LASI_RTC: + case LASI_FDC: case LASI_PCR ... LASI_AMR: ret = true; @@ -80,6 +83,7 @@ static MemTxResult lasi_chip_read_with_attrs(void *opaque, hwaddr addr, case LASI_UART: case LASI_LAN: case LASI_LAN + 12: + case LASI_FDC: val = 0; break; case LASI_RTC: @@ -145,12 +149,19 @@ static MemTxResult lasi_chip_write_with_attrs(void *opaque, hwaddr addr, case LASI_LPT: /* XXX: reset parallel port */ break; + case LASI_AUDIO: + case LASI_AUDIO + 4: + /* XXX: reset audio port */ + break; case LASI_UART: /* XXX: reset serial port */ break; case LASI_LAN: /* XXX: reset LAN card */ break; + case LASI_FDC: + /* XXX: reset Floppy controller */ + break; case LASI_RTC: s->rtc_ref = val - time(NULL); break; diff --git a/include/hw/misc/lasi.h b/include/hw/misc/lasi.h index 0a8c7352be..f01c0f680a 100644 --- a/include/hw/misc/lasi.h +++ b/include/hw/misc/lasi.h @@ -26,9 +26,11 @@ OBJECT_DECLARE_SIMPLE_TYPE(LasiState, LASI_CHIP) #define LASI_IAR 0x10 #define LASI_LPT 0x02000 +#define LASI_AUDIO 0x04000 #define LASI_UART 0x05000 #define LASI_LAN 0x07000 #define LASI_RTC 0x09000 +#define LASI_FDC 0x0A000 #define LASI_PCR 0x0C000 /* LASI Power Control register */ #define LASI_ERRLOG 0x0C004 /* LASI Error Logging register */