From patchwork Mon Sep 16 18:56:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 13805755 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 6C13FC3ABB2 for ; Mon, 16 Sep 2024 19:00:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sqGvf-0008Go-Iw; Mon, 16 Sep 2024 14:58:31 -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 1sqGvd-00088T-Ms for qemu-devel@nongnu.org; Mon, 16 Sep 2024 14:58:29 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sqGvc-0003Jb-5L for qemu-devel@nongnu.org; Mon, 16 Sep 2024 14:58:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1726513107; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7TUWMxNopOC5Sn+N0t1XWP7ZeD9STqgIv8eGWRZi4Vk=; b=axIbc6gXdvuL9sMyKs0SAX+VJVNa621UBU19ALJSPi4YYV45GrSKjaaDbF6x7pvq3ffgLD 6A3gj9MIA/6C2chjKJl1dL5njREjoRbpdygQUnE1Qwr+t4utZkIMDcxmd8qR+TFG/98YKu 23KF3sdLtAIDZ/JPMuHpHhwYh5cAiAY= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-638-f4ibBwFBPbyMYsI87hrNwA-1; Mon, 16 Sep 2024 14:57:18 -0400 X-MC-Unique: f4ibBwFBPbyMYsI87hrNwA-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AB4BA1955F45; Mon, 16 Sep 2024 18:57:17 +0000 (UTC) Received: from corto.redhat.com (unknown [10.39.192.44]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id D3C09195605A; Mon, 16 Sep 2024 18:57:15 +0000 (UTC) From: =?utf-8?q?C=C3=A9dric_Le_Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Jamin Lin , =?utf-8?q?C=C3=A9dric_Le_Goater?= Subject: [PULL 02/12] hw/i2c/aspeed: Support discontinuous register memory region of I2C bus Date: Mon, 16 Sep 2024 20:56:58 +0200 Message-ID: <20240916185708.574546-3-clg@redhat.com> In-Reply-To: <20240916185708.574546-1-clg@redhat.com> References: <20240916185708.574546-1-clg@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: Jamin Lin It only support continuous register memory region for all I2C bus. However, the register address of all I2c bus are discontinuous for AST2700. Ex: the register address of I2C bus for ast2700 as following. 0x100 - 0x17F: Device 0 0x200 - 0x27F: Device 1 0x300 - 0x37F: Device 2 0x400 - 0x47F: Device 3 0x500 - 0x57F: Device 4 0x600 - 0x67F: Device 5 0x700 - 0x77F: Device 6 0x800 - 0x87F: Device 7 0x900 - 0x97F: Device 8 0xA00 - 0xA7F: Device 9 0xB00 - 0xB7F: Device 10 0xC00 - 0xC7F: Device 11 0xD00 - 0xD7F: Device 12 0xE00 - 0xE7F: Device 13 0xF00 – 0xF7F: Device 14 0x1000 – 0x107F: Device 15 Introduce a new class attribute to make user set each I2C bus gap size. Update formula to create all I2C bus register memory regions. Signed-off-by: Jamin Lin Reviewed-by: Cédric Le Goater --- include/hw/i2c/aspeed_i2c.h | 1 + hw/i2c/aspeed_i2c.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h index fad5e9259a51..02ede859067e 100644 --- a/include/hw/i2c/aspeed_i2c.h +++ b/include/hw/i2c/aspeed_i2c.h @@ -275,6 +275,7 @@ struct AspeedI2CClass { uint8_t num_busses; uint8_t reg_size; + uint32_t reg_gap_size; uint8_t gap; qemu_irq (*bus_get_irq)(AspeedI2CBus *); diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c index f19891371426..ee30243c25f9 100644 --- a/hw/i2c/aspeed_i2c.c +++ b/hw/i2c/aspeed_i2c.c @@ -1012,6 +1012,7 @@ static void aspeed_i2c_realize(DeviceState *dev, Error **errp) SysBusDevice *sbd = SYS_BUS_DEVICE(dev); AspeedI2CState *s = ASPEED_I2C(dev); AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s); + uint32_t reg_offset = aic->reg_size + aic->reg_gap_size; sysbus_init_irq(sbd, &s->irq); memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_i2c_ctrl_ops, s, @@ -1034,7 +1035,7 @@ static void aspeed_i2c_realize(DeviceState *dev, Error **errp) return; } - memory_region_add_subregion(&s->iomem, aic->reg_size * (i + offset), + memory_region_add_subregion(&s->iomem, reg_offset * (i + offset), &s->busses[i].mr); }