WIP FPC-III support
[linux/fpc-iii.git] / drivers / scsi / aacraid / nark.c
blob4745a99fba8ce8322a49d82ca4b952f47ef9552a
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Adaptec AAC series RAID controller driver
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
8 * Copyright (c) 2000-2010 Adaptec, Inc.
9 * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
10 * 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
12 * Module Name:
13 * nark.c
15 * Abstract: Hardware Device Interface for NEMER/ARK
18 #include <linux/pci.h>
19 #include <linux/blkdev.h>
21 #include <scsi/scsi_host.h>
23 #include "aacraid.h"
25 /**
26 * aac_nark_ioremap
27 * @dev: device to ioremap
28 * @size: mapping resize request
31 static int aac_nark_ioremap(struct aac_dev * dev, u32 size)
33 if (!size) {
34 iounmap(dev->regs.rx);
35 dev->regs.rx = NULL;
36 iounmap(dev->base);
37 dev->base = NULL;
38 return 0;
40 dev->base_start = pci_resource_start(dev->pdev, 2);
41 dev->regs.rx = ioremap((u64)pci_resource_start(dev->pdev, 0) |
42 ((u64)pci_resource_start(dev->pdev, 1) << 32),
43 sizeof(struct rx_registers) - sizeof(struct rx_inbound));
44 dev->base = NULL;
45 if (dev->regs.rx == NULL)
46 return -1;
47 dev->base = ioremap(dev->base_start, size);
48 if (dev->base == NULL) {
49 iounmap(dev->regs.rx);
50 dev->regs.rx = NULL;
51 return -1;
53 dev->IndexRegs = &((struct rx_registers __iomem *)dev->base)->IndexRegs;
54 return 0;
57 /**
58 * aac_nark_init - initialize an NEMER/ARK Split Bar card
59 * @dev: device to configure
63 int aac_nark_init(struct aac_dev * dev)
66 * Fill in the function dispatch table.
68 dev->a_ops.adapter_ioremap = aac_nark_ioremap;
69 dev->a_ops.adapter_comm = aac_rx_select_comm;
71 return _aac_rx_init(dev);