1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Support for the VMIVME-7805 board access to the Universe II bridge.
5 * Author: Arthur Benilov <arthur.benilov@iba-group.com>
6 * Copyright 2010 Ion Beam Application, Inc.
9 #include <linux/module.h>
10 #include <linux/types.h>
11 #include <linux/errno.h>
12 #include <linux/pci.h>
13 #include <linux/poll.h>
16 #include "vme_vmivme7805.h"
18 static int vmic_probe(struct pci_dev
*, const struct pci_device_id
*);
19 static void vmic_remove(struct pci_dev
*);
21 /** Base address to access FPGA register */
22 static void __iomem
*vmic_base
;
24 static const char driver_name
[] = "vmivme_7805";
26 static const struct pci_device_id vmic_ids
[] = {
27 { PCI_DEVICE(PCI_VENDOR_ID_VMIC
, PCI_DEVICE_ID_VTIMR
) },
31 static struct pci_driver vmic_driver
= {
35 .remove
= vmic_remove
,
38 static int vmic_probe(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
43 /* Enable the device */
44 retval
= pci_enable_device(pdev
);
46 dev_err(&pdev
->dev
, "Unable to enable device\n");
51 retval
= pci_request_regions(pdev
, driver_name
);
53 dev_err(&pdev
->dev
, "Unable to reserve resources\n");
57 /* Map registers in BAR 0 */
58 vmic_base
= ioremap(pci_resource_start(pdev
, 0), 16);
60 dev_err(&pdev
->dev
, "Unable to remap CRG region\n");
65 /* Clear the FPGA VME IF contents */
66 iowrite32(0, vmic_base
+ VME_CONTROL
);
68 /* Clear any initial BERR */
69 data
= ioread32(vmic_base
+ VME_CONTROL
) & 0x00000FFF;
70 data
|= BM_VME_CONTROL_BERRST
;
71 iowrite32(data
, vmic_base
+ VME_CONTROL
);
73 /* Enable the vme interface and byte swapping */
74 data
= ioread32(vmic_base
+ VME_CONTROL
) & 0x00000FFF;
75 data
= data
| BM_VME_CONTROL_MASTER_ENDIAN
|
76 BM_VME_CONTROL_SLAVE_ENDIAN
|
78 BM_VME_CONTROL_BERRI
|
79 BM_VME_CONTROL_BPENA
|
81 iowrite32(data
, vmic_base
+ VME_CONTROL
);
86 pci_release_regions(pdev
);
88 pci_disable_device(pdev
);
93 static void vmic_remove(struct pci_dev
*pdev
)
96 pci_release_regions(pdev
);
97 pci_disable_device(pdev
);
101 module_pci_driver(vmic_driver
);
103 MODULE_DESCRIPTION("VMIVME-7805 board support driver");
104 MODULE_AUTHOR("Arthur Benilov <arthur.benilov@iba-group.com>");
105 MODULE_LICENSE("GPL");