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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
4 * Amiga Technologies A4000T SCSI controller.
5 *
6 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
7 * plus modifications of the 53c7xx.c driver to support the Amiga.
8 *
9 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
10 */
11
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/init.h>
15#include <linux/interrupt.h>
16#include <linux/slab.h>
17#include <asm/amigahw.h>
18#include <asm/amigaints.h>
19#include <scsi/scsi_host.h>
20#include <scsi/scsi_transport_spi.h>
21
22#include "53c700.h"
23
24
25static struct scsi_host_template a4000t_scsi_driver_template = {
26 .name = "A4000T builtin SCSI",
27 .proc_name = "A4000t",
28 .this_id = 7,
29 .module = THIS_MODULE,
30};
31
32
33#define A4000T_SCSI_OFFSET 0x40
34
35static int __init amiga_a4000t_scsi_probe(struct platform_device *pdev)
36{
37 struct resource *res;
38 phys_addr_t scsi_addr;
39 struct NCR_700_Host_Parameters *hostdata;
40 struct Scsi_Host *host;
41
42 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
43 if (!res)
44 return -ENODEV;
45
46 if (!request_mem_region(res->start, resource_size(res),
47 "A4000T builtin SCSI"))
48 return -EBUSY;
49
50 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters),
51 GFP_KERNEL);
52 if (!hostdata) {
53 dev_err(&pdev->dev, "Failed to allocate host data\n");
54 goto out_release;
55 }
56
57 scsi_addr = res->start + A4000T_SCSI_OFFSET;
58
59 /* Fill in the required pieces of hostdata */
60 hostdata->base = ZTWO_VADDR(scsi_addr);
61 hostdata->clock = 50;
62 hostdata->chip710 = 1;
63 hostdata->dmode_extra = DMODE_FC2;
64 hostdata->dcntl_extra = EA_710;
65
66 /* and register the chip */
67 host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata,
68 &pdev->dev);
69 if (!host) {
70 dev_err(&pdev->dev,
71 "No host detected; board configuration problem?\n");
72 goto out_free;
73 }
74
75 host->this_id = 7;
76 host->base = scsi_addr;
77 host->irq = IRQ_AMIGA_PORTS;
78
79 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
80 host)) {
81 dev_err(&pdev->dev, "request_irq failed\n");
82 goto out_put_host;
83 }
84
85 platform_set_drvdata(pdev, host);
86 scsi_scan_host(host);
87 return 0;
88
89 out_put_host:
90 scsi_host_put(host);
91 out_free:
92 kfree(hostdata);
93 out_release:
94 release_mem_region(res->start, resource_size(res));
95 return -ENODEV;
96}
97
98static void __exit amiga_a4000t_scsi_remove(struct platform_device *pdev)
99{
100 struct Scsi_Host *host = platform_get_drvdata(pdev);
101 struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
102 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
103
104 scsi_remove_host(host);
105 NCR_700_release(host);
106 kfree(hostdata);
107 free_irq(host->irq, host);
108 release_mem_region(res->start, resource_size(res));
109}
110
111static struct platform_driver amiga_a4000t_scsi_driver = {
112 .remove_new = __exit_p(amiga_a4000t_scsi_remove),
113 .driver = {
114 .name = "amiga-a4000t-scsi",
115 },
116};
117
118module_platform_driver_probe(amiga_a4000t_scsi_driver, amiga_a4000t_scsi_probe);
119
120MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / "
121 "Kars de Jong <jongk@linux-m68k.org>");
122MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
123MODULE_LICENSE("GPL");
124MODULE_ALIAS("platform:amiga-a4000t-scsi");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
4 * Amiga Technologies A4000T SCSI controller.
5 *
6 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
7 * plus modifications of the 53c7xx.c driver to support the Amiga.
8 *
9 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
10 */
11
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/init.h>
15#include <linux/interrupt.h>
16#include <linux/slab.h>
17#include <asm/amigahw.h>
18#include <asm/amigaints.h>
19#include <scsi/scsi_host.h>
20#include <scsi/scsi_transport_spi.h>
21
22#include "53c700.h"
23
24
25static struct scsi_host_template a4000t_scsi_driver_template = {
26 .name = "A4000T builtin SCSI",
27 .proc_name = "A4000t",
28 .this_id = 7,
29 .module = THIS_MODULE,
30};
31
32
33#define A4000T_SCSI_OFFSET 0x40
34
35static int __init amiga_a4000t_scsi_probe(struct platform_device *pdev)
36{
37 struct resource *res;
38 phys_addr_t scsi_addr;
39 struct NCR_700_Host_Parameters *hostdata;
40 struct Scsi_Host *host;
41
42 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
43 if (!res)
44 return -ENODEV;
45
46 if (!request_mem_region(res->start, resource_size(res),
47 "A4000T builtin SCSI"))
48 return -EBUSY;
49
50 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters),
51 GFP_KERNEL);
52 if (!hostdata) {
53 dev_err(&pdev->dev, "Failed to allocate host data\n");
54 goto out_release;
55 }
56
57 scsi_addr = res->start + A4000T_SCSI_OFFSET;
58
59 /* Fill in the required pieces of hostdata */
60 hostdata->base = ZTWO_VADDR(scsi_addr);
61 hostdata->clock = 50;
62 hostdata->chip710 = 1;
63 hostdata->dmode_extra = DMODE_FC2;
64 hostdata->dcntl_extra = EA_710;
65
66 /* and register the chip */
67 host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata,
68 &pdev->dev);
69 if (!host) {
70 dev_err(&pdev->dev,
71 "No host detected; board configuration problem?\n");
72 goto out_free;
73 }
74
75 host->this_id = 7;
76 host->base = scsi_addr;
77 host->irq = IRQ_AMIGA_PORTS;
78
79 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
80 host)) {
81 dev_err(&pdev->dev, "request_irq failed\n");
82 goto out_put_host;
83 }
84
85 platform_set_drvdata(pdev, host);
86 scsi_scan_host(host);
87 return 0;
88
89 out_put_host:
90 scsi_host_put(host);
91 out_free:
92 kfree(hostdata);
93 out_release:
94 release_mem_region(res->start, resource_size(res));
95 return -ENODEV;
96}
97
98static int __exit amiga_a4000t_scsi_remove(struct platform_device *pdev)
99{
100 struct Scsi_Host *host = platform_get_drvdata(pdev);
101 struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
102 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
103
104 scsi_remove_host(host);
105 NCR_700_release(host);
106 kfree(hostdata);
107 free_irq(host->irq, host);
108 release_mem_region(res->start, resource_size(res));
109 return 0;
110}
111
112static struct platform_driver amiga_a4000t_scsi_driver = {
113 .remove = __exit_p(amiga_a4000t_scsi_remove),
114 .driver = {
115 .name = "amiga-a4000t-scsi",
116 },
117};
118
119module_platform_driver_probe(amiga_a4000t_scsi_driver, amiga_a4000t_scsi_probe);
120
121MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / "
122 "Kars de Jong <jongk@linux-m68k.org>");
123MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
124MODULE_LICENSE("GPL");
125MODULE_ALIAS("platform:amiga-a4000t-scsi");