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