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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: [PATCHv4 14/28] PCI: mobiveil: initialize
 Primary/Secondary/Subordinate bus number
Thread-Topic: [PATCHv4 14/28] PCI: mobiveil: initialize
 Primary/Secondary/Subordinate bus number
Thread-Index: AQHU1+1AtGOoAU+YtEiiEyC+O3ktCA==
Date:   Mon, 11 Mar 2019 09:31:48 +0000
Message-ID: <20190311093130.7209-15-Zhiqiang.Hou@nxp.com>
References: <20190311093130.7209-1-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>
Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
---
V4:
 - no change

 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 db7ecb021c63..9210165fe8c0 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -582,6 +582,12 @@ 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