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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 6E6D4C433FF for ; Mon, 29 Jul 2019 19:42:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 36F1F205F4 for ; Mon, 29 Jul 2019 19:42:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564429344; bh=aXYymebGDijswDt5Qlb5JMim/POmyUbYkuzpcQQJ4I8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=WKMFW2dfm40Zhk/Tgml2A+hOlKAhq6UTCbhYWEidh+9D3s2BUIu3IkTGvvaNFPd5u iMW9IyT/ydurQST2GtomOHyE7eKMg/hl2qkWwYsnqfZm8i16quGDpH22pww2naM/5j Un28WI2rhBZvSWbQik+nhmpDkuUCQZMv3wMRGnrk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389076AbfG2TmX (ORCPT ); Mon, 29 Jul 2019 15:42:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:58018 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389316AbfG2TmU (ORCPT ); Mon, 29 Jul 2019 15:42:20 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A18292054F; Mon, 29 Jul 2019 19:42:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564429339; bh=aXYymebGDijswDt5Qlb5JMim/POmyUbYkuzpcQQJ4I8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0bXh2NRFgbO8hgSZ1wwm1URL7sWoh662msSalM4YxjXs2hM+Hwck9DEVXBBrv6Lcl MybCw2SKp4zXvNjbAHtwFgYw0B/SiX4qCyf8ZILo4MDqriczavBNdf/9kGxhxnglOg GB7KgoKRN0YUgn/i52jK3Y61fTHT3aKml3s+WBbM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hou Zhiqiang , Lorenzo Pieralisi , Minghuan Lian , Subrahmanya Lingappa , Sasha Levin Subject: [PATCH 4.19 065/113] PCI: mobiveil: Initialize Primary/Secondary/Subordinate bus numbers Date: Mon, 29 Jul 2019 21:22:32 +0200 Message-Id: <20190729190711.053065127@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190729190655.455345569@linuxfoundation.org> References: <20190729190655.455345569@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ 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 3e81e68b5ce0..2fe7ebdad2d2 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -508,6 +508,12 @@ 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