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From:   "Z.q. Hou" <zhiqiang.hou@nxp.com>
To:     "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
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CC:     Mingkai Hu <mingkai.hu@nxp.com>,
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        "Z.q. Hou" <zhiqiang.hou@nxp.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>
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From: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>

The reset value is all zero, so set a workable value for Primary,
Secondary and Subordinate bus numbers.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
---
 drivers/pci/controller/pcie-mobiveil.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controlle=
r/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 *pc=
ie)
 	u32 value, pab_ctrl, type;
 	struct resource_entry *win;
=20
+	/* setup bus numbers */
+	value =3D csr_readl(pcie, PCI_PRIMARY_BUS);
+	value &=3D 0xff000000;
+	value |=3D 0x00ff0100;
+	csr_writel(pcie, value, PCI_PRIMARY_BUS);
+
 	/*
 	 * program Bus Master Enable Bit in Command Register in PAB Config
 	 * Space
--=20
2.17.1