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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
c27d85f3 TB |
2 | |
3 | /* SNI RM driver | |
4 | * | |
5 | * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com | |
6 | **----------------------------------------------------------------------------- | |
7 | ** | |
c27d85f3 TB |
8 | ** |
9 | **----------------------------------------------------------------------------- | |
10 | */ | |
11 | ||
12 | /* | |
13 | * Based on lasi700.c | |
14 | */ | |
15 | ||
16 | #include <linux/kernel.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/types.h> | |
5a0e3ad6 | 20 | #include <linux/slab.h> |
c27d85f3 TB |
21 | #include <linux/stat.h> |
22 | #include <linux/mm.h> | |
23 | #include <linux/blkdev.h> | |
24 | #include <linux/sched.h> | |
25 | #include <linux/ioport.h> | |
26 | #include <linux/dma-mapping.h> | |
27 | #include <linux/platform_device.h> | |
28 | ||
29 | #include <asm/page.h> | |
c27d85f3 TB |
30 | #include <asm/irq.h> |
31 | #include <asm/delay.h> | |
32 | ||
33 | #include <scsi/scsi_host.h> | |
34 | #include <scsi/scsi_device.h> | |
35 | #include <scsi/scsi_transport.h> | |
36 | #include <scsi/scsi_transport_spi.h> | |
37 | ||
38 | #include "53c700.h" | |
39 | ||
d36b6910 | 40 | MODULE_AUTHOR("Thomas Bogendörfer"); |
c27d85f3 TB |
41 | MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver"); |
42 | MODULE_LICENSE("GPL"); | |
ecc1241e | 43 | MODULE_ALIAS("platform:snirm_53c710"); |
c27d85f3 TB |
44 | |
45 | #define SNIRM710_CLOCK 32 | |
46 | ||
47 | static struct scsi_host_template snirm710_template = { | |
48 | .name = "SNI RM SCSI 53c710", | |
49 | .proc_name = "snirm_53c710", | |
50 | .this_id = 7, | |
51 | .module = THIS_MODULE, | |
52 | }; | |
53 | ||
6f039790 | 54 | static int snirm710_probe(struct platform_device *dev) |
c27d85f3 TB |
55 | { |
56 | unsigned long base; | |
57 | struct NCR_700_Host_Parameters *hostdata; | |
58 | struct Scsi_Host *host; | |
59 | struct resource *res; | |
1160d61b | 60 | int rc; |
c27d85f3 TB |
61 | |
62 | res = platform_get_resource(dev, IORESOURCE_MEM, 0); | |
63 | if (!res) | |
64 | return -ENODEV; | |
65 | ||
66 | base = res->start; | |
67 | hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); | |
0ee62114 | 68 | if (!hostdata) |
c27d85f3 | 69 | return -ENOMEM; |
c27d85f3 TB |
70 | |
71 | hostdata->dev = &dev->dev; | |
284901a9 | 72 | dma_set_mask(&dev->dev, DMA_BIT_MASK(32)); |
4bdc0d67 | 73 | hostdata->base = ioremap(base, 0x100); |
c27d85f3 TB |
74 | hostdata->differential = 0; |
75 | ||
76 | hostdata->clock = SNIRM710_CLOCK; | |
77 | hostdata->force_le_on_be = 1; | |
78 | hostdata->chip710 = 1; | |
79 | hostdata->burst_length = 4; | |
80 | ||
81 | host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev); | |
82 | if (!host) | |
83 | goto out_kfree; | |
84 | host->this_id = 7; | |
85 | host->base = base; | |
1160d61b SS |
86 | host->irq = rc = platform_get_irq(dev, 0); |
87 | if (rc < 0) | |
88 | goto out_put_host; | |
2833bf68 | 89 | if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) { |
c27d85f3 TB |
90 | printk(KERN_ERR "snirm710: request_irq failed!\n"); |
91 | goto out_put_host; | |
92 | } | |
93 | ||
94 | dev_set_drvdata(&dev->dev, host); | |
95 | scsi_scan_host(host); | |
96 | ||
97 | return 0; | |
98 | ||
99 | out_put_host: | |
100 | scsi_host_put(host); | |
101 | out_kfree: | |
102 | iounmap(hostdata->base); | |
103 | kfree(hostdata); | |
104 | return -ENODEV; | |
105 | } | |
106 | ||
ba21222d | 107 | static int snirm710_driver_remove(struct platform_device *dev) |
c27d85f3 TB |
108 | { |
109 | struct Scsi_Host *host = dev_get_drvdata(&dev->dev); | |
110 | struct NCR_700_Host_Parameters *hostdata = | |
111 | (struct NCR_700_Host_Parameters *)host->hostdata[0]; | |
112 | ||
113 | scsi_remove_host(host); | |
114 | NCR_700_release(host); | |
115 | free_irq(host->irq, host); | |
116 | iounmap(hostdata->base); | |
117 | kfree(hostdata); | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
122 | static struct platform_driver snirm710_driver = { | |
123 | .probe = snirm710_probe, | |
6f039790 | 124 | .remove = snirm710_driver_remove, |
c27d85f3 TB |
125 | .driver = { |
126 | .name = "snirm_53c710", | |
127 | }, | |
128 | }; | |
a3b73c96 | 129 | module_platform_driver(snirm710_driver); |