1*8276b58aSKars de Jong /* 2*8276b58aSKars de Jong * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. 3*8276b58aSKars de Jong * 4*8276b58aSKars de Jong * Based on work by Alan Hourihane and Kars de Jong 5*8276b58aSKars de Jong * 6*8276b58aSKars de Jong * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk> 7*8276b58aSKars de Jong */ 8*8276b58aSKars de Jong 9*8276b58aSKars de Jong #include <linux/module.h> 10*8276b58aSKars de Jong #include <linux/blkdev.h> 11*8276b58aSKars de Jong #include <linux/device.h> 12*8276b58aSKars de Jong #include <linux/platform_device.h> 13*8276b58aSKars de Jong #include <linux/init.h> 14*8276b58aSKars de Jong #include <linux/interrupt.h> 15*8276b58aSKars de Jong #include <asm/bvme6000hw.h> 16*8276b58aSKars de Jong #include <scsi/scsi_host.h> 17*8276b58aSKars de Jong #include <scsi/scsi_device.h> 18*8276b58aSKars de Jong #include <scsi/scsi_transport.h> 19*8276b58aSKars de Jong #include <scsi/scsi_transport_spi.h> 20*8276b58aSKars de Jong 21*8276b58aSKars de Jong #include "53c700.h" 22*8276b58aSKars de Jong 23*8276b58aSKars de Jong MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>"); 24*8276b58aSKars de Jong MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); 25*8276b58aSKars de Jong MODULE_LICENSE("GPL"); 26*8276b58aSKars de Jong 27*8276b58aSKars de Jong static struct scsi_host_template bvme6000_scsi_driver_template = { 28*8276b58aSKars de Jong .name = "BVME6000 NCR53c710 SCSI", 29*8276b58aSKars de Jong .proc_name = "BVME6000", 30*8276b58aSKars de Jong .this_id = 7, 31*8276b58aSKars de Jong .module = THIS_MODULE, 32*8276b58aSKars de Jong }; 33*8276b58aSKars de Jong 34*8276b58aSKars de Jong static struct platform_device *bvme6000_scsi_device; 35*8276b58aSKars de Jong 36*8276b58aSKars de Jong static __devinit int 37*8276b58aSKars de Jong bvme6000_probe(struct device *dev) 38*8276b58aSKars de Jong { 39*8276b58aSKars de Jong struct Scsi_Host * host = NULL; 40*8276b58aSKars de Jong struct NCR_700_Host_Parameters *hostdata; 41*8276b58aSKars de Jong 42*8276b58aSKars de Jong if (!MACH_IS_BVME6000) 43*8276b58aSKars de Jong goto out; 44*8276b58aSKars de Jong 45*8276b58aSKars de Jong hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); 46*8276b58aSKars de Jong if (hostdata == NULL) { 47*8276b58aSKars de Jong printk(KERN_ERR "bvme6000-scsi: " 48*8276b58aSKars de Jong "Failed to allocate host data\n"); 49*8276b58aSKars de Jong goto out; 50*8276b58aSKars de Jong } 51*8276b58aSKars de Jong memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); 52*8276b58aSKars de Jong 53*8276b58aSKars de Jong /* Fill in the required pieces of hostdata */ 54*8276b58aSKars de Jong hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; 55*8276b58aSKars de Jong hostdata->clock = 40; /* XXX - depends on the CPU clock! */ 56*8276b58aSKars de Jong hostdata->chip710 = 1; 57*8276b58aSKars de Jong hostdata->dmode_extra = DMODE_FC2; 58*8276b58aSKars de Jong hostdata->dcntl_extra = EA_710; 59*8276b58aSKars de Jong hostdata->ctest7_extra = CTEST7_TT1; 60*8276b58aSKars de Jong 61*8276b58aSKars de Jong /* and register the chip */ 62*8276b58aSKars de Jong host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, dev); 63*8276b58aSKars de Jong if (!host) { 64*8276b58aSKars de Jong printk(KERN_ERR "bvme6000-scsi: No host detected; " 65*8276b58aSKars de Jong "board configuration problem?\n"); 66*8276b58aSKars de Jong goto out_free; 67*8276b58aSKars de Jong } 68*8276b58aSKars de Jong host->base = BVME_NCR53C710_BASE; 69*8276b58aSKars de Jong host->this_id = 7; 70*8276b58aSKars de Jong host->irq = BVME_IRQ_SCSI; 71*8276b58aSKars de Jong if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", 72*8276b58aSKars de Jong host)) { 73*8276b58aSKars de Jong printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); 74*8276b58aSKars de Jong goto out_put_host; 75*8276b58aSKars de Jong } 76*8276b58aSKars de Jong 77*8276b58aSKars de Jong scsi_scan_host(host); 78*8276b58aSKars de Jong 79*8276b58aSKars de Jong return 0; 80*8276b58aSKars de Jong 81*8276b58aSKars de Jong out_put_host: 82*8276b58aSKars de Jong scsi_host_put(host); 83*8276b58aSKars de Jong out_free: 84*8276b58aSKars de Jong kfree(hostdata); 85*8276b58aSKars de Jong out: 86*8276b58aSKars de Jong return -ENODEV; 87*8276b58aSKars de Jong } 88*8276b58aSKars de Jong 89*8276b58aSKars de Jong static __devexit int 90*8276b58aSKars de Jong bvme6000_device_remove(struct device *dev) 91*8276b58aSKars de Jong { 92*8276b58aSKars de Jong struct Scsi_Host *host = dev_to_shost(dev); 93*8276b58aSKars de Jong struct NCR_700_Host_Parameters *hostdata = shost_priv(host); 94*8276b58aSKars de Jong 95*8276b58aSKars de Jong scsi_remove_host(host); 96*8276b58aSKars de Jong NCR_700_release(host); 97*8276b58aSKars de Jong kfree(hostdata); 98*8276b58aSKars de Jong free_irq(host->irq, host); 99*8276b58aSKars de Jong 100*8276b58aSKars de Jong return 0; 101*8276b58aSKars de Jong } 102*8276b58aSKars de Jong 103*8276b58aSKars de Jong static struct device_driver bvme6000_scsi_driver = { 104*8276b58aSKars de Jong .name = "bvme6000-scsi", 105*8276b58aSKars de Jong .bus = &platform_bus_type, 106*8276b58aSKars de Jong .probe = bvme6000_probe, 107*8276b58aSKars de Jong .remove = __devexit_p(bvme6000_device_remove), 108*8276b58aSKars de Jong }; 109*8276b58aSKars de Jong 110*8276b58aSKars de Jong static int __init bvme6000_scsi_init(void) 111*8276b58aSKars de Jong { 112*8276b58aSKars de Jong int err; 113*8276b58aSKars de Jong 114*8276b58aSKars de Jong err = driver_register(&bvme6000_scsi_driver); 115*8276b58aSKars de Jong if (err) { 116*8276b58aSKars de Jong return err; 117*8276b58aSKars de Jong 118*8276b58aSKars de Jong bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", 119*8276b58aSKars de Jong -1, NULL, 0); 120*8276b58aSKars de Jong if (IS_ERR(bvme6000_scsi_device)) { 121*8276b58aSKars de Jong driver_unregister(&bvme6000_scsi_driver); 122*8276b58aSKars de Jong return PTR_ERR(bvme6000_scsi_device); 123*8276b58aSKars de Jong } 124*8276b58aSKars de Jong 125*8276b58aSKars de Jong return 0; 126*8276b58aSKars de Jong } 127*8276b58aSKars de Jong 128*8276b58aSKars de Jong static void __exit bvme6000_scsi_exit(void) 129*8276b58aSKars de Jong { 130*8276b58aSKars de Jong platform_device_unregister(bvme6000_scsi_device); 131*8276b58aSKars de Jong driver_unregister(&bvme6000_scsi_driver); 132*8276b58aSKars de Jong } 133*8276b58aSKars de Jong 134*8276b58aSKars de Jong module_init(bvme6000_scsi_init); 135*8276b58aSKars de Jong module_exit(bvme6000_scsi_exit); 136