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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D171CC76188 for ; Fri, 19 Jul 2019 04:36:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A1AF72082E for ; Fri, 19 Jul 2019 04:36:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563510965; bh=leuje/BwHEBKQQl3X8zI1LBJIPhRyKhC/r2bwUoyqkA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wvIA41ZIOkamOR7+UllpRbFFfltTrDwfr6IcyiXqstBbAjahxEDhxucJQLr8aeZEL 6JXbLJYdS5xPt6WVslNZHiWu2zCkIRclS+Q0velurq+/cZ+ICdXL7WRDwz787Z5ZRW rFrDPsHaQM8j4HMHdK2ght7yfUiMfm1P+CGEq060= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730432AbfGSEgE (ORCPT ); Fri, 19 Jul 2019 00:36:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:60548 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729079AbfGSEAm (ORCPT ); Fri, 19 Jul 2019 00:00:42 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C769321852; Fri, 19 Jul 2019 04:00:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563508841; bh=leuje/BwHEBKQQl3X8zI1LBJIPhRyKhC/r2bwUoyqkA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qnLUUVxO7XYwdNyNnLXcxwvNG3Sk5Zedp6baZlEMu6hGZazI13wk4ravvxu7np7rf MAxORVvBUCgTFPFI5W6AVfj6i5/8GfkNd4yjeoEpTmdXoAqR2bzLqZ9WNcpKW8fmE0 vLNbohx6bGerprtxuluES7wcNb2DKefELB6INetA= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hou Zhiqiang , Lorenzo Pieralisi , Minghuan Lian , Subrahmanya Lingappa , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 5.2 120/171] PCI: mobiveil: Initialize Primary/Secondary/Subordinate bus numbers Date: Thu, 18 Jul 2019 23:55:51 -0400 Message-Id: <20190719035643.14300-120-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190719035643.14300-1-sashal@kernel.org> References: <20190719035643.14300-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hou Zhiqiang [ Upstream commit 6f3ab451aa5c2cbff33197d82fe8489cbd55ad91 ] The reset value of Primary, Secondary and Subordinate bus numbers is zero which is a broken setup. Program a sensible default value for Primary/Secondary/Subordinate bus numbers. Signed-off-by: Hou Zhiqiang Signed-off-by: Lorenzo Pieralisi Reviewed-by: Minghuan Lian Reviewed-by: Subrahmanya Lingappa Signed-off-by: Sasha Levin --- drivers/pci/controller/pcie-mobiveil.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c index 88e9b70081fc..e4a1964e1b43 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -501,6 +501,12 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) return err; } + /* setup bus numbers */ + value = csr_readl(pcie, PCI_PRIMARY_BUS); + value &= 0xff000000; + value |= 0x00ff0100; + csr_writel(pcie, value, PCI_PRIMARY_BUS); + /* * program Bus Master Enable Bit in Command Register in PAB Config * Space -- 2.20.1