2 * Copyright (C) 2015 Broadcom Corporation
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation version 2.
8 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
9 * kind, whether express or implied; without even the implied warranty
10 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 #include <linux/kernel.h>
15 #include <linux/pci.h>
16 #include <linux/clk.h>
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <linux/interrupt.h>
20 #include <linux/platform_device.h>
21 #include <linux/of_address.h>
22 #include <linux/of_pci.h>
23 #include <linux/of_irq.h>
24 #include <linux/of_platform.h>
25 #include <linux/phy/phy.h>
27 #include "pcie-iproc.h"
29 static int iproc_pcie_pltfm_probe(struct platform_device
*pdev
)
31 struct iproc_pcie
*pcie
;
32 struct device_node
*np
= pdev
->dev
.of_node
;
34 resource_size_t iobase
= 0;
38 pcie
= devm_kzalloc(&pdev
->dev
, sizeof(struct iproc_pcie
), GFP_KERNEL
);
42 pcie
->dev
= &pdev
->dev
;
43 platform_set_drvdata(pdev
, pcie
);
45 ret
= of_address_to_resource(np
, 0, ®
);
47 dev_err(pcie
->dev
, "unable to obtain controller resources\n");
51 pcie
->base
= devm_ioremap(pcie
->dev
, reg
.start
, resource_size(®
));
53 dev_err(pcie
->dev
, "unable to map controller registers\n");
57 /* PHY use is optional */
58 pcie
->phy
= devm_phy_get(&pdev
->dev
, "pcie-phy");
59 if (IS_ERR(pcie
->phy
)) {
60 if (PTR_ERR(pcie
->phy
) == -EPROBE_DEFER
)
65 ret
= of_pci_get_host_bridge_resources(np
, 0, 0xff, &res
, &iobase
);
68 "unable to get PCI host bridge resources\n");
72 pcie
->map_irq
= of_irq_parse_and_map_pci
;
74 ret
= iproc_pcie_setup(pcie
, &res
);
76 dev_err(pcie
->dev
, "PCIe controller setup failed\n");
78 pci_free_resource_list(&res
);
83 static int iproc_pcie_pltfm_remove(struct platform_device
*pdev
)
85 struct iproc_pcie
*pcie
= platform_get_drvdata(pdev
);
87 return iproc_pcie_remove(pcie
);
90 static const struct of_device_id iproc_pcie_of_match_table
[] = {
91 { .compatible
= "brcm,iproc-pcie", },
94 MODULE_DEVICE_TABLE(of
, iproc_pcie_of_match_table
);
96 static struct platform_driver iproc_pcie_pltfm_driver
= {
99 .of_match_table
= of_match_ptr(iproc_pcie_of_match_table
),
101 .probe
= iproc_pcie_pltfm_probe
,
102 .remove
= iproc_pcie_pltfm_remove
,
104 module_platform_driver(iproc_pcie_pltfm_driver
);
106 MODULE_AUTHOR("Ray Jui <rjui@broadcom.com>");
107 MODULE_DESCRIPTION("Broadcom iPROC PCIe platform driver");
108 MODULE_LICENSE("GPL v2");