xref: /openbmc/linux/drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c (revision 9a87ffc99ec8eb8d35eed7c4f816d75f5cc9662e)
1*03bdc388SHou Zhiqiang // SPDX-License-Identifier: GPL-2.0
2*03bdc388SHou Zhiqiang /*
3*03bdc388SHou Zhiqiang  * PCIe host controller driver for Mobiveil PCIe Host controller
4*03bdc388SHou Zhiqiang  *
5*03bdc388SHou Zhiqiang  * Copyright (c) 2018 Mobiveil Inc.
6*03bdc388SHou Zhiqiang  * Copyright 2019 NXP
7*03bdc388SHou Zhiqiang  *
8*03bdc388SHou Zhiqiang  * Author: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
9*03bdc388SHou Zhiqiang  *	   Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
10*03bdc388SHou Zhiqiang  */
11*03bdc388SHou Zhiqiang 
12*03bdc388SHou Zhiqiang #include <linux/init.h>
13*03bdc388SHou Zhiqiang #include <linux/kernel.h>
14*03bdc388SHou Zhiqiang #include <linux/module.h>
15*03bdc388SHou Zhiqiang #include <linux/of_pci.h>
16*03bdc388SHou Zhiqiang #include <linux/pci.h>
17*03bdc388SHou Zhiqiang #include <linux/platform_device.h>
18*03bdc388SHou Zhiqiang #include <linux/slab.h>
19*03bdc388SHou Zhiqiang 
20*03bdc388SHou Zhiqiang #include "pcie-mobiveil.h"
21*03bdc388SHou Zhiqiang 
mobiveil_pcie_probe(struct platform_device * pdev)22*03bdc388SHou Zhiqiang static int mobiveil_pcie_probe(struct platform_device *pdev)
23*03bdc388SHou Zhiqiang {
24*03bdc388SHou Zhiqiang 	struct mobiveil_pcie *pcie;
25*03bdc388SHou Zhiqiang 	struct pci_host_bridge *bridge;
26*03bdc388SHou Zhiqiang 	struct device *dev = &pdev->dev;
27*03bdc388SHou Zhiqiang 
28*03bdc388SHou Zhiqiang 	/* allocate the PCIe port */
29*03bdc388SHou Zhiqiang 	bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));
30*03bdc388SHou Zhiqiang 	if (!bridge)
31*03bdc388SHou Zhiqiang 		return -ENOMEM;
32*03bdc388SHou Zhiqiang 
33*03bdc388SHou Zhiqiang 	pcie = pci_host_bridge_priv(bridge);
34*03bdc388SHou Zhiqiang 	pcie->rp.bridge = bridge;
35*03bdc388SHou Zhiqiang 
36*03bdc388SHou Zhiqiang 	pcie->pdev = pdev;
37*03bdc388SHou Zhiqiang 
38*03bdc388SHou Zhiqiang 	return mobiveil_pcie_host_probe(pcie);
39*03bdc388SHou Zhiqiang }
40*03bdc388SHou Zhiqiang 
41*03bdc388SHou Zhiqiang static const struct of_device_id mobiveil_pcie_of_match[] = {
42*03bdc388SHou Zhiqiang 	{.compatible = "mbvl,gpex40-pcie",},
43*03bdc388SHou Zhiqiang 	{},
44*03bdc388SHou Zhiqiang };
45*03bdc388SHou Zhiqiang 
46*03bdc388SHou Zhiqiang MODULE_DEVICE_TABLE(of, mobiveil_pcie_of_match);
47*03bdc388SHou Zhiqiang 
48*03bdc388SHou Zhiqiang static struct platform_driver mobiveil_pcie_driver = {
49*03bdc388SHou Zhiqiang 	.probe = mobiveil_pcie_probe,
50*03bdc388SHou Zhiqiang 	.driver = {
51*03bdc388SHou Zhiqiang 		.name = "mobiveil-pcie",
52*03bdc388SHou Zhiqiang 		.of_match_table = mobiveil_pcie_of_match,
53*03bdc388SHou Zhiqiang 		.suppress_bind_attrs = true,
54*03bdc388SHou Zhiqiang 	},
55*03bdc388SHou Zhiqiang };
56*03bdc388SHou Zhiqiang 
57*03bdc388SHou Zhiqiang builtin_platform_driver(mobiveil_pcie_driver);
58*03bdc388SHou Zhiqiang 
59*03bdc388SHou Zhiqiang MODULE_DESCRIPTION("Mobiveil PCIe host controller driver");
60*03bdc388SHou Zhiqiang MODULE_AUTHOR("Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>");
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