Commit | Line | Data |
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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
8276b58a KJ |
2 | /* |
3 | * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. | |
4 | * | |
5 | * Based on work by Alan Hourihane and Kars de Jong | |
6 | * | |
7 | * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk> | |
8 | */ | |
9 | ||
10 | #include <linux/module.h> | |
11 | #include <linux/blkdev.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/interrupt.h> | |
5a0e3ad6 | 16 | #include <linux/slab.h> |
8276b58a KJ |
17 | #include <asm/bvme6000hw.h> |
18 | #include <scsi/scsi_host.h> | |
19 | #include <scsi/scsi_device.h> | |
20 | #include <scsi/scsi_transport.h> | |
21 | #include <scsi/scsi_transport_spi.h> | |
22 | ||
23 | #include "53c700.h" | |
24 | ||
25 | MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>"); | |
26 | MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); | |
27 | MODULE_LICENSE("GPL"); | |
28 | ||
29 | static struct scsi_host_template bvme6000_scsi_driver_template = { | |
30 | .name = "BVME6000 NCR53c710 SCSI", | |
31 | .proc_name = "BVME6000", | |
32 | .this_id = 7, | |
33 | .module = THIS_MODULE, | |
34 | }; | |
35 | ||
36 | static struct platform_device *bvme6000_scsi_device; | |
37 | ||
6f039790 | 38 | static int |
7a192ec3 | 39 | bvme6000_probe(struct platform_device *dev) |
8276b58a | 40 | { |
bbfbbbc1 | 41 | struct Scsi_Host *host; |
8276b58a KJ |
42 | struct NCR_700_Host_Parameters *hostdata; |
43 | ||
44 | if (!MACH_IS_BVME6000) | |
45 | goto out; | |
46 | ||
bbfbbbc1 MK |
47 | hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); |
48 | if (!hostdata) { | |
8276b58a KJ |
49 | printk(KERN_ERR "bvme6000-scsi: " |
50 | "Failed to allocate host data\n"); | |
51 | goto out; | |
52 | } | |
8276b58a KJ |
53 | |
54 | /* Fill in the required pieces of hostdata */ | |
55 | hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; | |
56 | hostdata->clock = 40; /* XXX - depends on the CPU clock! */ | |
57 | hostdata->chip710 = 1; | |
58 | hostdata->dmode_extra = DMODE_FC2; | |
59 | hostdata->dcntl_extra = EA_710; | |
60 | hostdata->ctest7_extra = CTEST7_TT1; | |
61 | ||
62 | /* and register the chip */ | |
e5779a58 GU |
63 | host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, |
64 | &dev->dev); | |
8276b58a KJ |
65 | if (!host) { |
66 | printk(KERN_ERR "bvme6000-scsi: No host detected; " | |
67 | "board configuration problem?\n"); | |
68 | goto out_free; | |
69 | } | |
70 | host->base = BVME_NCR53C710_BASE; | |
71 | host->this_id = 7; | |
72 | host->irq = BVME_IRQ_SCSI; | |
73 | if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", | |
74 | host)) { | |
75 | printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); | |
76 | goto out_put_host; | |
77 | } | |
78 | ||
7a192ec3 | 79 | platform_set_drvdata(dev, host); |
8276b58a KJ |
80 | scsi_scan_host(host); |
81 | ||
82 | return 0; | |
83 | ||
84 | out_put_host: | |
85 | scsi_host_put(host); | |
86 | out_free: | |
87 | kfree(hostdata); | |
88 | out: | |
89 | return -ENODEV; | |
90 | } | |
91 | ||
6f039790 | 92 | static int |
7a192ec3 | 93 | bvme6000_device_remove(struct platform_device *dev) |
8276b58a | 94 | { |
7a192ec3 | 95 | struct Scsi_Host *host = platform_get_drvdata(dev); |
8276b58a KJ |
96 | struct NCR_700_Host_Parameters *hostdata = shost_priv(host); |
97 | ||
98 | scsi_remove_host(host); | |
99 | NCR_700_release(host); | |
100 | kfree(hostdata); | |
101 | free_irq(host->irq, host); | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
7a192ec3 ML |
106 | static struct platform_driver bvme6000_scsi_driver = { |
107 | .driver = { | |
108 | .name = "bvme6000-scsi", | |
7a192ec3 ML |
109 | }, |
110 | .probe = bvme6000_probe, | |
6f039790 | 111 | .remove = bvme6000_device_remove, |
8276b58a KJ |
112 | }; |
113 | ||
114 | static int __init bvme6000_scsi_init(void) | |
115 | { | |
116 | int err; | |
117 | ||
7a192ec3 | 118 | err = platform_driver_register(&bvme6000_scsi_driver); |
96249cf9 | 119 | if (err) |
8276b58a KJ |
120 | return err; |
121 | ||
122 | bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", | |
123 | -1, NULL, 0); | |
124 | if (IS_ERR(bvme6000_scsi_device)) { | |
7a192ec3 | 125 | platform_driver_unregister(&bvme6000_scsi_driver); |
8276b58a KJ |
126 | return PTR_ERR(bvme6000_scsi_device); |
127 | } | |
128 | ||
129 | return 0; | |
130 | } | |
131 | ||
132 | static void __exit bvme6000_scsi_exit(void) | |
133 | { | |
134 | platform_device_unregister(bvme6000_scsi_device); | |
7a192ec3 | 135 | platform_driver_unregister(&bvme6000_scsi_driver); |
8276b58a KJ |
136 | } |
137 | ||
138 | module_init(bvme6000_scsi_init); | |
139 | module_exit(bvme6000_scsi_exit); |