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Hou" To: "linux-pci@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "bhelgaas@google.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "l.subrahmanya@mobiveil.co.in" , "shawnguo@kernel.org" , Leo Li , "lorenzo.pieralisi@arm.com" Subject: [PATCH 14/23] PCI: mobiveil: initialize Primary/Secondary/Subordinate bus number Thread-Topic: [PATCH 14/23] PCI: mobiveil: initialize Primary/Secondary/Subordinate bus number Thread-Index: AQHUddOAOpjrJxdoLEW1ke5psCHyLA== Date: Tue, 6 Nov 2018 13:20:35 +0000 Message-ID: <20181106131807.29951-15-Zhiqiang.Hou@nxp.com> References: <20181106131807.29951-1-Zhiqiang.Hou@nxp.com> In-Reply-To: <20181106131807.29951-1-Zhiqiang.Hou@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK0PR03CA0008.apcprd03.prod.outlook.com (2603:1096:203:2e::20) To DB5PR04MB1221.eurprd04.prod.outlook.com (2a01:111:e400:51c2::27) authentication-results: spf=none (sender IP is ) smtp.mailfrom=zhiqiang.hou@nxp.com; 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Lian" , "Z.q. Hou" , Xiaowei Bao , Mingkai Hu Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hou Zhiqiang The reset value is all zero, so set a workable value for Primary, Secondary and Subordinate bus numbers. Signed-off-by: Hou Zhiqiang --- 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 3da924bb6b3c..8d6a1e98f655 100644 --- a/drivers/pci/controller/pcie-mobiveil.c +++ b/drivers/pci/controller/pcie-mobiveil.c @@ -581,6 +581,12 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie) u32 value, pab_ctrl, type; struct resource_entry *win; + /* 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