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Alan Cox51dbd492007-11-19 14:45:53 +00001/*
2 * pata_ninja32.c - Ninja32 PATA for new ATA layer
3 * (C) 2007 Red Hat Inc
Alan Cox51dbd492007-11-19 14:45:53 +00004 *
5 * Note: The controller like many controllers has shared timings for
6 * PIO and DMA. We thus flip to the DMA timings in dma_start and flip back
7 * in the dma_stop function. Thus we actually don't need a set_dmamode
8 * method as the PIO method is always called and will set the right PIO
9 * timing parameters.
10 *
11 * The Ninja32 Cardbus is not a generic SFF controller. Instead it is
12 * laid out as follows off BAR 0. This is based upon Mark Lord's delkin
13 * driver and the extensive analysis done by the BSD developers, notably
14 * ITOH Yasufumi.
15 *
16 * Base + 0x00 IRQ Status
17 * Base + 0x01 IRQ control
18 * Base + 0x02 Chipset control
Alan Cox41946452008-02-08 15:25:10 +000019 * Base + 0x03 Unknown
Alan Cox51dbd492007-11-19 14:45:53 +000020 * Base + 0x04 VDMA and reset control + wait bits
21 * Base + 0x08 BMIMBA
22 * Base + 0x0C DMA Length
23 * Base + 0x10 Taskfile
24 * Base + 0x18 BMDMA Status ?
25 * Base + 0x1C
26 * Base + 0x1D Bus master control
27 * bit 0 = enable
28 * bit 1 = 0 write/1 read
29 * bit 2 = 1 sgtable
30 * bit 3 = go
31 * bit 4-6 wait bits
32 * bit 7 = done
33 * Base + 0x1E AltStatus
34 * Base + 0x1F timing register
35 */
36
37#include <linux/kernel.h>
38#include <linux/module.h>
39#include <linux/pci.h>
Alan Cox51dbd492007-11-19 14:45:53 +000040#include <linux/blkdev.h>
41#include <linux/delay.h>
42#include <scsi/scsi_host.h>
43#include <linux/libata.h>
44
45#define DRV_NAME "pata_ninja32"
Alan Coxe3cf95d2009-04-09 17:31:17 +010046#define DRV_VERSION "0.1.5"
Alan Cox51dbd492007-11-19 14:45:53 +000047
48
49/**
50 * ninja32_set_piomode - set initial PIO mode data
51 * @ap: ATA interface
52 * @adev: ATA device
53 *
54 * Called to do the PIO mode setup. Our timing registers are shared
55 * but we want to set the PIO timing by default.
56 */
57
58static void ninja32_set_piomode(struct ata_port *ap, struct ata_device *adev)
59{
60 static u16 pio_timing[5] = {
61 0xd6, 0x85, 0x44, 0x33, 0x13
62 };
Jeff Garzik11b7bec2007-11-23 21:12:14 -050063 iowrite8(pio_timing[adev->pio_mode - XFER_PIO_0],
64 ap->ioaddr.bmdma_addr + 0x1f);
Alan Cox51dbd492007-11-19 14:45:53 +000065 ap->private_data = adev;
66}
67
68
69static void ninja32_dev_select(struct ata_port *ap, unsigned int device)
70{
71 struct ata_device *adev = &ap->link.device[device];
72 if (ap->private_data != adev) {
73 iowrite8(0xd6, ap->ioaddr.bmdma_addr + 0x1f);
Tejun Heo9363c382008-04-07 22:47:16 +090074 ata_sff_dev_select(ap, device);
Alan Cox51dbd492007-11-19 14:45:53 +000075 ninja32_set_piomode(ap, adev);
76 }
77}
78
79static struct scsi_host_template ninja32_sht = {
Tejun Heo68d1d072008-03-25 12:22:49 +090080 ATA_BMDMA_SHT(DRV_NAME),
Alan Cox51dbd492007-11-19 14:45:53 +000081};
82
83static struct ata_port_operations ninja32_port_ops = {
Tejun Heo029cfd62008-03-25 12:22:49 +090084 .inherits = &ata_bmdma_port_ops,
Tejun Heo5682ed32008-04-07 22:47:16 +090085 .sff_dev_select = ninja32_dev_select,
Alan Cox51dbd492007-11-19 14:45:53 +000086 .cable_detect = ata_cable_40wire,
Tejun Heo029cfd62008-03-25 12:22:49 +090087 .set_piomode = ninja32_set_piomode,
Alan Coxe3cf95d2009-04-09 17:31:17 +010088 .sff_data_xfer = ata_sff_data_xfer32
Alan Cox51dbd492007-11-19 14:45:53 +000089};
90
Alan Coxe7c0d212008-10-17 19:08:31 +010091static void ninja32_program(void __iomem *base)
92{
93 iowrite8(0x05, base + 0x01); /* Enable interrupt lines */
94 iowrite8(0xBE, base + 0x02); /* Burst, ?? setup */
95 iowrite8(0x01, base + 0x03); /* Unknown */
96 iowrite8(0x20, base + 0x04); /* WAIT0 */
97 iowrite8(0x8f, base + 0x05); /* Unknown */
98 iowrite8(0xa4, base + 0x1c); /* Unknown */
99 iowrite8(0x83, base + 0x1d); /* BMDMA control: WAIT0 */
100}
101
Alan Cox51dbd492007-11-19 14:45:53 +0000102static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id)
103{
104 struct ata_host *host;
105 struct ata_port *ap;
106 void __iomem *base;
107 int rc;
108
109 host = ata_host_alloc(&dev->dev, 1);
110 if (!host)
111 return -ENOMEM;
112 ap = host->ports[0];
113
114 /* Set up the PCI device */
115 rc = pcim_enable_device(dev);
116 if (rc)
117 return rc;
118 rc = pcim_iomap_regions(dev, 1 << 0, DRV_NAME);
119 if (rc == -EBUSY)
120 pcim_pin_device(dev);
121 if (rc)
122 return rc;
123
124 host->iomap = pcim_iomap_table(dev);
125 rc = pci_set_dma_mask(dev, ATA_DMA_MASK);
126 if (rc)
127 return rc;
128 rc = pci_set_consistent_dma_mask(dev, ATA_DMA_MASK);
129 if (rc)
130 return rc;
131 pci_set_master(dev);
132
Alan Coxb6049582008-12-05 19:42:38 +0000133 /* Set up the register mappings. We use the I/O mapping as only the
134 older chips also have MMIO on BAR 1 */
Alan Cox51dbd492007-11-19 14:45:53 +0000135 base = host->iomap[0];
136 if (!base)
137 return -ENOMEM;
138 ap->ops = &ninja32_port_ops;
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +0100139 ap->pio_mask = ATA_PIO4;
Alan Cox51dbd492007-11-19 14:45:53 +0000140 ap->flags |= ATA_FLAG_SLAVE_POSS;
141
142 ap->ioaddr.cmd_addr = base + 0x10;
143 ap->ioaddr.ctl_addr = base + 0x1E;
144 ap->ioaddr.altstatus_addr = base + 0x1E;
145 ap->ioaddr.bmdma_addr = base;
Tejun Heo9363c382008-04-07 22:47:16 +0900146 ata_sff_std_ports(&ap->ioaddr);
Alan Coxe3cf95d2009-04-09 17:31:17 +0100147 ap->pflags = ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE;
Alan Cox51dbd492007-11-19 14:45:53 +0000148
Alan Coxe7c0d212008-10-17 19:08:31 +0100149 ninja32_program(base);
Alan Cox51dbd492007-11-19 14:45:53 +0000150 /* FIXME: Should we disable them at remove ? */
Tejun Heoc3b28892010-05-19 22:10:21 +0200151 return ata_host_activate(host, dev->irq, ata_bmdma_interrupt,
Jeff Garzik11b7bec2007-11-23 21:12:14 -0500152 IRQF_SHARED, &ninja32_sht);
Alan Cox51dbd492007-11-19 14:45:53 +0000153}
154
Alan Coxe7c0d212008-10-17 19:08:31 +0100155#ifdef CONFIG_PM
156
157static int ninja32_reinit_one(struct pci_dev *pdev)
158{
Jingoo Han0a86e1c2013-06-03 14:05:36 +0900159 struct ata_host *host = pci_get_drvdata(pdev);
Alan Coxe7c0d212008-10-17 19:08:31 +0100160 int rc;
161
162 rc = ata_pci_device_do_resume(pdev);
163 if (rc)
164 return rc;
165 ninja32_program(host->iomap[0]);
166 ata_host_resume(host);
Jeff Garzik4fca3772011-02-15 01:13:24 -0500167 return 0;
Alan Coxe7c0d212008-10-17 19:08:31 +0100168}
169#endif
170
Alan Cox51dbd492007-11-19 14:45:53 +0000171static const struct pci_device_id ninja32[] = {
Alan Coxb6049582008-12-05 19:42:38 +0000172 { 0x10FC, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
173 { 0x1145, 0x8008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
174 { 0x1145, 0xf008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
Jeff Garzik11b7bec2007-11-23 21:12:14 -0500175 { 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
176 { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
Alan Coxb6049582008-12-05 19:42:38 +0000177 { 0x1145, 0xf02C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
Alan Cox51dbd492007-11-19 14:45:53 +0000178 { },
179};
180
181static struct pci_driver ninja32_pci_driver = {
182 .name = DRV_NAME,
183 .id_table = ninja32,
184 .probe = ninja32_init_one,
Alan Coxe7c0d212008-10-17 19:08:31 +0100185 .remove = ata_pci_remove_one,
186#ifdef CONFIG_PM
187 .suspend = ata_pci_device_suspend,
188 .resume = ninja32_reinit_one,
189#endif
Alan Cox51dbd492007-11-19 14:45:53 +0000190};
191
Axel Lin2fc75da2012-04-19 13:43:05 +0800192module_pci_driver(ninja32_pci_driver);
Alan Cox51dbd492007-11-19 14:45:53 +0000193
194MODULE_AUTHOR("Alan Cox");
195MODULE_DESCRIPTION("low-level driver for Ninja32 ATA");
196MODULE_LICENSE("GPL");
197MODULE_DEVICE_TABLE(pci, ninja32);
198MODULE_VERSION(DRV_VERSION);