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GET /api/patches/2224455/?format=api
{ "id": 2224455, "url": "http://patchwork.ozlabs.org/api/patches/2224455/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260417122213.147529-5-uros.stajic@htecgroup.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260417122213.147529-5-uros.stajic@htecgroup.com>", "list_archive_url": null, "date": "2026-04-17T12:25:44", "name": "[v7,4/7] pci: xilinx: Avoid writing memory base/limit for root bridge", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "2fcecc8a31ad1cddf5d62e159a60db94b2b9106c", "submitter": { "id": 90991, "url": "http://patchwork.ozlabs.org/api/people/90991/?format=api", "name": "Uros Stajic", "email": "uros.stajic@htecgroup.com" }, "delegate": { "id": 20174, "url": "http://patchwork.ozlabs.org/api/users/20174/?format=api", "username": "Andes", "first_name": "Andes", "last_name": "", "email": "uboot@andestech.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260417122213.147529-5-uros.stajic@htecgroup.com/mbox/", "series": [ { "id": 500329, "url": "http://patchwork.ozlabs.org/api/series/500329/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=500329", "date": "2026-04-17T12:23:32", "name": "riscv: Add support for P8700 platform on Boston board", "version": 7, "mbox": "http://patchwork.ozlabs.org/series/500329/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224455/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224455/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=htecgroup.com header.i=@htecgroup.com\n header.a=rsa-sha256 header.s=selector1 header.b=dPJPSHbq;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; 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mx.microsoft.com 1; spf=pass\n smtp.mailfrom=htecgroup.com; dmarc=pass action=none\n header.from=htecgroup.com; dkim=pass header.d=htecgroup.com; arc=none", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=htecgroup.com;\n s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=dJkuNUK7c62Zz4f0E16cS5K6MLL+EQNLk5a85VTvfPs=;\n b=dPJPSHbqPDtM8bb6SfSfT15K8jkLPfc4qEN90V/JgbpzLBw3qeyeyHLztacXkybPpA4vGVg7YZHK1GJ5zJjf0kY2hTVAe4pOHNPf2o4RcKfU4XMHBXXTSfZX+DWSMWvzSBKpZzYq29G7zmtMUH+tJA6bIt8hrYW0Rv8TwdpSrBu3CcxzwcDiZoq+2mq44U9H9ypkLHJsJTri36jzvFcKk3TR7sT3E9YYuVgEUMg+aK2icFb4gEIZuakIFoJkkd62e2j7Gdm/pBN9HuN0VsI+D0oDSSSaRilKbM6KRkdFiAnJFk73nDAmUkmrLp4LWljzJUVVEwqNdx/4QD35HTJzVw==", "From": "Uros Stajic <uros.stajic@htecgroup.com>", "To": "\"u-boot@lists.denx.de\" <u-boot@lists.denx.de>", "CC": "Djordje Todorovic <Djordje.Todorovic@htecgroup.com>, Leo Yu-Chi Liang\n <ycliang@andestech.com>, Rick Chen <rick@andestech.com>, Chao-ying Fu\n <cfu@mips.com>, Uros Stajic <uros.stajic@htecgroup.com>", "Subject": "[PATCH v7 4/7] pci: xilinx: Avoid writing memory base/limit for root\n bridge", "Thread-Topic": "[PATCH v7 4/7] pci: xilinx: Avoid writing memory base/limit for\n root bridge", "Thread-Index": "AQHczmVQpZzQnybCnkyO0mzqHW0JbQ==", "Date": "Fri, 17 Apr 2026 12:25:44 +0000", "Message-ID": "<20260417122213.147529-5-uros.stajic@htecgroup.com>", "References": "<20260417122213.147529-1-uros.stajic@htecgroup.com>", "In-Reply-To": "<20260417122213.147529-1-uros.stajic@htecgroup.com>", "Accept-Language": "en-US", "Content-Language": "en-US", "X-MS-Has-Attach": "", "X-MS-TNEF-Correlator": "", "authentication-results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=htecgroup.com header.i=@htecgroup.com\n header.a=rsa-sha256 header.s=selector1 header.b=dPJPSHbq;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; 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charset=\"iso-8859-1\"", "Content-Transfer-Encoding": "quoted-printable", "MIME-Version": "1.0", "X-OriginatorOrg": "htecgroup.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-AuthSource": "PA3PR09MB8140.eurprd09.prod.outlook.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 64b1228e-ca28-4772-9e1b-08de9c7c7290", "X-MS-Exchange-CrossTenant-originalarrivaltime": "17 Apr 2026 12:25:44.4667 (UTC)", "X-MS-Exchange-CrossTenant-fromentityheader": "Hosted", "X-MS-Exchange-CrossTenant-id": "9f85665b-7efd-4776-9dfe-b6bfda2565ee", "X-MS-Exchange-CrossTenant-mailboxtype": "HOSTED", "X-MS-Exchange-CrossTenant-userprincipalname": "\n LQfaAYkxPlAQeG8W1/85ks/mjYJmIo+/UsHzYs5EvK6QREh2vHxFJ7VIpgBGmn1PHkypcT1UEVE22Pk+iF/zPYCMKszrVEAcSikp3zRq+XM=", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DB9PR09MB6861", "X-Mailman-Approved-At": "Fri, 17 Apr 2026 14:43:59 +0200", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: Chao-ying Fu <cfu@mips.com>\n\nAvoid writing to PCI_MEMORY_BASE and PCI_MEMORY_LIMIT registers for\nbus 0, device 0 (the root bridge) in the Xilinx PCIe driver.\n\nOn platforms such as the MIPS Boston board, writing to these fields\nresults in incorrect values (e.g. base = 0x0, limit = 0x1600), which\ncauses Linux to fail PCIe memory space assignment.\n\nAs a result, Linux can boot successfully and probe the PCIe bus and\nall connected devices on platforms like the MIPS Boston board.\n\nSigned-off-by: Chao-ying Fu <cfu@mips.com>\nSigned-off-by: Uros Stajic <uros.stajic@htecgroup.com>\n---\n drivers/pci/pcie_xilinx.c | 9 +++++++++\n 1 file changed, 9 insertions(+)", "diff": "diff --git a/drivers/pci/pcie_xilinx.c b/drivers/pci/pcie_xilinx.c\nindex 63058e8e7c5..4ef20474a0b 100644\n--- a/drivers/pci/pcie_xilinx.c\n+++ b/drivers/pci/pcie_xilinx.c\n@@ -132,6 +132,15 @@ static int pcie_xilinx_write_config(struct udevice *bus, pci_dev_t bdf,\n \t\t\t\t uint offset, ulong value,\n \t\t\t\t enum pci_size_t size)\n {\n+\tif (bdf == PCI_BDF(bus->seq_, 0, 0)) {\n+\t\tswitch (offset) {\n+\t\tcase PCI_MEMORY_BASE:\n+\t\tcase PCI_MEMORY_LIMIT:\n+\t\t\t/* Writing the memory base or limit causes problems */\n+\t\t\treturn 0;\n+\t\t}\n+\t}\n+\n \treturn pci_generic_mmap_write_config(bus, pcie_xilinx_config_address,\n \t\t\t\t\t bdf, offset, value, size);\n }\n", "prefixes": [ "v7", "4/7" ] }