From patchwork Wed Feb 7 18:20:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Helge Deller X-Patchwork-Id: 1896296 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=IL+jR9Qq; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4TVT454kLpz1ySn for ; Thu, 8 Feb 2024 05:22:29 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rXmXJ-0004ji-OP; Wed, 07 Feb 2024 13:20:41 -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 1rXmXI-0004ie-2i for qemu-devel@nongnu.org; Wed, 07 Feb 2024 13:20:40 -0500 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rXmXG-0008AI-IJ for qemu-devel@nongnu.org; Wed, 07 Feb 2024 13:20:39 -0500 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id A793761999; Wed, 7 Feb 2024 18:20:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87727C433C7; Wed, 7 Feb 2024 18:20:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707330037; bh=vqjS4Tn8JsTETJjKAhscWBmZAWUWeDAIiHK9Uvc1mpY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IL+jR9Qq+myOvvZsQ/8Ie4IfEkzVD8SUY90tNqIFBRM2CKeVD1L7hxDl7soKlQBzd LDMY1Mgd79jrWIkmzMgOsHEn45E0lrQGEdZX3kCBrMbcnsJTFT5SRNMoGqn3Tb0zpi bbex5SiAnuJk0qfHu2iT8y5IywAo1Hzzuk26+yK8r3z7SgQ+5zh3xNTHkznnzETPyR 4/7Npbb+dvBARGEQR07CTulXysSvT/0jQ53wlldMgsNBOPB6OqwUGJqOs5acy2uxwp 9IqomqZHxKkcUVY4Lcv2IQjfcQu1FvBshN7YHIsrgt62xtTXfS+x6kA+g22V1VLkz6 hK7ABblut0ydg== From: deller@kernel.org To: qemu-devel@nongnu.org Cc: Richard Henderson , Helge Deller Subject: [PATCH 08/13] lasi: Add reset I/O ports for LASI audio and FDC Date: Wed, 7 Feb 2024 19:20:18 +0100 Message-ID: <20240207182023.36316-9-deller@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240207182023.36316-1-deller@kernel.org> References: <20240207182023.36316-1-deller@kernel.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2604:1380:4641:c500::1; envelope-from=deller@kernel.org; helo=dfw.source.kernel.org X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.106, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.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 */