1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *	Adaptec AAC series RAID controller driver
4 *
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
7 *
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)
11 *
12 * Module Name:
13 *  nark.c
14 *
15 * Abstract: Hardware Device Interface for NEMER/ARK
16 */
17
18#include <linux/pci.h>
19#include <linux/blkdev.h>
20
21#include <scsi/scsi_host.h>
22
23#include "aacraid.h"
24
25/**
26 *	aac_nark_ioremap
27 *	@dev: device to ioremap
28 *	@size: mapping resize request
29 *
30 */
31static int aac_nark_ioremap(struct aac_dev * dev, u32 size)
32{
33	if (!size) {
34		iounmap(dev->regs.rx);
35		dev->regs.rx = NULL;
36		iounmap(dev->base);
37		dev->base = NULL;
38		return 0;
39	}
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;
52	}
53	dev->IndexRegs = &((struct rx_registers __iomem *)dev->base)->IndexRegs;
54	return 0;
55}
56
57/**
58 *	aac_nark_init	-	initialize an NEMER/ARK Split Bar card
59 *	@dev: device to configure
60 *
61 */
62
63int aac_nark_init(struct aac_dev * dev)
64{
65	/*
66	 *	Fill in the function dispatch table.
67	 */
68	dev->a_ops.adapter_ioremap = aac_nark_ioremap;
69	dev->a_ops.adapter_comm = aac_rx_select_comm;
70
71	return _aac_rx_init(dev);
72}
73