^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Based on work by Alan Hourihane and Kars de Jong
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/bvme6000hw.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <scsi/scsi_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <scsi/scsi_transport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <scsi/scsi_transport_spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "53c700.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) MODULE_DESCRIPTION("BVME6000 NCR53C710 driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static struct scsi_host_template bvme6000_scsi_driver_template = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) .name = "BVME6000 NCR53c710 SCSI",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) .proc_name = "BVME6000",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) .this_id = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) .module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static struct platform_device *bvme6000_scsi_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) bvme6000_probe(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct Scsi_Host *host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct NCR_700_Host_Parameters *hostdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (!MACH_IS_BVME6000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if (!hostdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) printk(KERN_ERR "bvme6000-scsi: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) "Failed to allocate host data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* Fill in the required pieces of hostdata */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) hostdata->base = (void __iomem *)BVME_NCR53C710_BASE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) hostdata->clock = 40; /* XXX - depends on the CPU clock! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) hostdata->chip710 = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) hostdata->dmode_extra = DMODE_FC2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) hostdata->dcntl_extra = EA_710;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) hostdata->ctest7_extra = CTEST7_TT1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /* and register the chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) &dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (!host) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) printk(KERN_ERR "bvme6000-scsi: No host detected; "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) "board configuration problem?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) host->base = BVME_NCR53C710_BASE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) host->this_id = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) host->irq = BVME_IRQ_SCSI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) host)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) printk(KERN_ERR "bvme6000-scsi: request_irq failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) goto out_put_host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) platform_set_drvdata(dev, host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) scsi_scan_host(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) out_put_host:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) scsi_host_put(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) kfree(hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) bvme6000_device_remove(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct Scsi_Host *host = platform_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) scsi_remove_host(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) NCR_700_release(host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) kfree(hostdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) free_irq(host->irq, host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static struct platform_driver bvme6000_scsi_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .name = "bvme6000-scsi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .probe = bvme6000_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .remove = bvme6000_device_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static int __init bvme6000_scsi_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) err = platform_driver_register(&bvme6000_scsi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) -1, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (IS_ERR(bvme6000_scsi_device)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) platform_driver_unregister(&bvme6000_scsi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return PTR_ERR(bvme6000_scsi_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static void __exit bvme6000_scsi_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) platform_device_unregister(bvme6000_scsi_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) platform_driver_unregister(&bvme6000_scsi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) module_init(bvme6000_scsi_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) module_exit(bvme6000_scsi_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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