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Mon, 7 Aug 2023 04:04:41 -0700 Received: from xhdthippesw40.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server id 15.1.2507.27 via Frontend Transport; Mon, 7 Aug 2023 06:04:38 -0500 From: Thippeswamy Havalige To: , , , , , CC: , , , , "Thippeswamy Havalige" Subject: [PATCH v1 0/2] Fix ecam size value to discover 256 buses during Date: Mon, 7 Aug 2023 16:34:35 +0530 Message-ID: <20230807110436.77287-1-thippeswamy.havalige@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000EDD6:EE_|SN7PR12MB6790:EE_ X-MS-Office365-Filtering-Correlation-Id: c5b65a62-bada-4897-3a1d-08db97361a4c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(136003)(376002)(39860400002)(346002)(396003)(451199021)(1800799003)(82310400008)(186006)(40470700004)(36840700001)(46966006)(40480700001)(40460700003)(2616005)(6666004)(81166007)(86362001)(478600001)(82740400003)(1076003)(356005)(26005)(36756003)(41300700001)(4744005)(316002)(5660300002)(44832011)(8676002)(8936002)(54906003)(110136005)(4326008)(2906002)(70206006)(70586007)(336012)(47076005)(83380400001)(36860700001)(426003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Aug 2023 11:04:42.7194 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c5b65a62-bada-4897-3a1d-08db97361a4c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000EDD6.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB6790 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Current driver is supports up to 16 buses. The following code fixes to support up to 256 buses. update "NWL_ECAM_VALUE_DEFAULT " to 16 can access up to 256MB ECAM region to detect 256 buses. Remove redundant code which updates primary,secondary and sub-ordinate register offset 0x18 in type1 header. Update ecam size to 256MB in device tree binding example. Thippeswamy Havalige (2): PCI: xilinx-nwl: Update ECAM default value and remove unnecessary code. dt-bindings: PCI: xilinx-nwl: Modify ECAM size in example. .../devicetree/bindings/pci/xlnx,nwl-pcie.yaml | 2 +- drivers/pci/controller/pcie-xilinx-nwl.c | 18 +++--------------- 2 files changed, 4 insertions(+), 16 deletions(-)