From patchwork Sun Nov 13 03:06:13 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Lin X-Patchwork-Id: 9424551 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 56C4D60484 for ; Sun, 13 Nov 2016 03:07:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 48A5E28D97 for ; Sun, 13 Nov 2016 03:07:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 37B8628DA0; Sun, 13 Nov 2016 03:07:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C2BDF28980 for ; Sun, 13 Nov 2016 03:07:25 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1c5l8a-0006ID-KG; Sun, 13 Nov 2016 03:07:20 +0000 Received: from lucky1.263xmail.com ([211.157.147.134]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1c5l8Y-00061f-9m for linux-rockchip@lists.infradead.org; Sun, 13 Nov 2016 03:07:19 +0000 Received: from shawn.lin?rock-chips.com (unknown [192.168.167.78]) by lucky1.263xmail.com (Postfix) with ESMTP id A96C3852; Sun, 13 Nov 2016 11:06:50 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id D43123AB; Sun, 13 Nov 2016 11:06:49 +0800 (CST) X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: bhelgaas@google.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: <87d9a97b3cba3758b53b847a9b5fef5c> X-ATTACHMENT-NUM: 0 X-SENDER: lintao@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 5478X38OJ5; Sun, 13 Nov 2016 11:06:50 +0800 (CST) From: Shawn Lin To: Bjorn Helgaas Subject: [PATCH 1/2] PCI: rockchip: cleanup bit definition for PCIE_RC_CONFIG_LCS Date: Sun, 13 Nov 2016 11:06:13 +0800 Message-Id: <1479006374-192306-1-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.9.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161112_190718_798177_B2602A26 X-CRM114-Status: UNSURE ( 6.08 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Herring , Wenrui Li , devicetree@vger.kernel.org, linux-pci@vger.kernel.org, Shawn Lin , Brian Norris , linux-rockchip@lists.infradead.org, Jeffy Chen MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP PCIE_RC_CONFIG_LCS contains control and status bits specific to the PCIe link. The layout for this register looks the same as the existed PCI_EXP_LNKCTL and PCI_EXP_LNKSTA. So let's reuse them. Signed-off-by: Shawn Lin --- drivers/pci/host/pcie-rockchip.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c index 7f238af..1dba698 100644 --- a/drivers/pci/host/pcie-rockchip.c +++ b/drivers/pci/host/pcie-rockchip.c @@ -141,12 +141,6 @@ #define PCIE_RC_CONFIG_DCR_CSPL_LIMIT 0xff #define PCIE_RC_CONFIG_DCR_CPLS_SHIFT 26 #define PCIE_RC_CONFIG_LCS (PCIE_RC_CONFIG_BASE + 0xd0) -#define PCIE_RC_CONFIG_LCS_RETRAIN_LINK BIT(5) -#define PCIE_RC_CONFIG_LCS_CCC BIT(6) -#define PCIE_RC_CONFIG_LCS_LBMIE BIT(10) -#define PCIE_RC_CONFIG_LCS_LABIE BIT(11) -#define PCIE_RC_CONFIG_LCS_LBMS BIT(30) -#define PCIE_RC_CONFIG_LCS_LAMS BIT(31) #define PCIE_RC_CONFIG_L1_SUBSTATE_CTRL2 (PCIE_RC_CONFIG_BASE + 0x90c) #define PCIE_RC_CONFIG_THP_CAP (PCIE_RC_CONFIG_BASE + 0x274) #define PCIE_RC_CONFIG_THP_CAP_NEXT_MASK GENMASK(31, 20) @@ -229,7 +223,7 @@ static void rockchip_pcie_enable_bw_int(struct rockchip_pcie *rockchip) u32 status; status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS); - status |= (PCIE_RC_CONFIG_LCS_LBMIE | PCIE_RC_CONFIG_LCS_LABIE); + status |= (PCI_EXP_LNKCTL_LBMIE | PCI_EXP_LNKCTL_LABIE); rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS); } @@ -238,7 +232,7 @@ static void rockchip_pcie_clr_bw_int(struct rockchip_pcie *rockchip) u32 status; status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS); - status |= (PCIE_RC_CONFIG_LCS_LBMS | PCIE_RC_CONFIG_LCS_LAMS); + status |= (PCI_EXP_LNKSTA_LBMS | PCI_EXP_LNKSTA_LABS) << 16; rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS); } @@ -540,7 +534,7 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip) /* Set RC's clock architecture as common clock */ status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS); - status |= PCIE_RC_CONFIG_LCS_CCC; + status |= PCI_EXP_LNKCTL_CCC; rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS); /* Enable Gen1 training */ @@ -575,7 +569,7 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip) * gen1 finished. */ status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS); - status |= PCIE_RC_CONFIG_LCS_RETRAIN_LINK; + status |= PCI_EXP_LNKCTL_RL; rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS); timeout = jiffies + msecs_to_jiffies(500);