1 /* 2 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. 3 * Amiga MacroSystemUS WarpEngine SCSI controller. 4 * Amiga Technologies/DKB A4091 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/init.h> 14 #include <linux/interrupt.h> 15 #include <linux/zorro.h> 16 17 #include <asm/amigahw.h> 18 #include <asm/amigaints.h> 19 20 #include <scsi/scsi_host.h> 21 #include <scsi/scsi_transport_spi.h> 22 23 #include "53c700.h" 24 25 MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>"); 26 MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver"); 27 MODULE_LICENSE("GPL"); 28 29 30 static struct scsi_host_template zorro7xx_scsi_driver_template = { 31 .proc_name = "zorro7xx", 32 .this_id = 7, 33 .module = THIS_MODULE, 34 }; 35 36 static struct zorro_driver_data { 37 const char *name; 38 unsigned long offset; 39 int absolute; /* offset is absolute address */ 40 } zorro7xx_driver_data[] __devinitdata = { 41 { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 }, 42 { .name = "WarpEngine 40xx", .offset = 0x40000 }, 43 { .name = "A4091", .offset = 0x800000 }, 44 { .name = "GForce 040/060", .offset = 0x40000 }, 45 { 0 } 46 }; 47 48 static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = { 49 { 50 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, 51 .driver_data = (unsigned long)&zorro7xx_driver_data[0], 52 }, 53 { 54 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, 55 .driver_data = (unsigned long)&zorro7xx_driver_data[1], 56 }, 57 { 58 .id = ZORRO_PROD_CBM_A4091_1, 59 .driver_data = (unsigned long)&zorro7xx_driver_data[2], 60 }, 61 { 62 .id = ZORRO_PROD_CBM_A4091_2, 63 .driver_data = (unsigned long)&zorro7xx_driver_data[2], 64 }, 65 { 66 .id = ZORRO_PROD_GVP_GFORCE_040_060, 67 .driver_data = (unsigned long)&zorro7xx_driver_data[3], 68 }, 69 { 0 } 70 }; 71 72 static int __devinit zorro7xx_init_one(struct zorro_dev *z, 73 const struct zorro_device_id *ent) 74 { 75 struct Scsi_Host *host; 76 struct NCR_700_Host_Parameters *hostdata; 77 struct zorro_driver_data *zdd; 78 unsigned long board, ioaddr; 79 80 board = zorro_resource_start(z); 81 zdd = (struct zorro_driver_data *)ent->driver_data; 82 83 if (zdd->absolute) { 84 ioaddr = zdd->offset; 85 } else { 86 ioaddr = board + zdd->offset; 87 } 88 89 if (!zorro_request_device(z, zdd->name)) { 90 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", 91 board); 92 return -EBUSY; 93 } 94 95 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); 96 if (!hostdata) { 97 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); 98 goto out_release; 99 } 100 101 /* Fill in the required pieces of hostdata */ 102 if (ioaddr > 0x01000000) 103 hostdata->base = ioremap(ioaddr, zorro_resource_len(z)); 104 else 105 hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr); 106 107 hostdata->clock = 50; 108 hostdata->chip710 = 1; 109 110 /* Settings for at least WarpEngine 40xx */ 111 hostdata->ctest7_extra = CTEST7_TT1; 112 113 zorro7xx_scsi_driver_template.name = zdd->name; 114 115 /* and register the chip */ 116 host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata, 117 &z->dev); 118 if (!host) { 119 printk(KERN_ERR "zorro7xx: No host detected; " 120 "board configuration problem?\n"); 121 goto out_free; 122 } 123 124 host->this_id = 7; 125 host->base = ioaddr; 126 host->irq = IRQ_AMIGA_PORTS; 127 128 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi", 129 host)) { 130 printk(KERN_ERR "zorro7xx: request_irq failed\n"); 131 goto out_put_host; 132 } 133 134 zorro_set_drvdata(z, host); 135 scsi_scan_host(host); 136 137 return 0; 138 139 out_put_host: 140 scsi_host_put(host); 141 out_free: 142 if (ioaddr > 0x01000000) 143 iounmap(hostdata->base); 144 kfree(hostdata); 145 out_release: 146 zorro_release_device(z); 147 148 return -ENODEV; 149 } 150 151 static __devexit void zorro7xx_remove_one(struct zorro_dev *z) 152 { 153 struct Scsi_Host *host = zorro_get_drvdata(z); 154 struct NCR_700_Host_Parameters *hostdata = shost_priv(host); 155 156 scsi_remove_host(host); 157 158 NCR_700_release(host); 159 kfree(hostdata); 160 free_irq(host->irq, host); 161 zorro_release_device(z); 162 } 163 164 static struct zorro_driver zorro7xx_driver = { 165 .name = "zorro7xx-scsi", 166 .id_table = zorro7xx_zorro_tbl, 167 .probe = zorro7xx_init_one, 168 .remove = __devexit_p(zorro7xx_remove_one), 169 }; 170 171 static int __init zorro7xx_scsi_init(void) 172 { 173 return zorro_register_driver(&zorro7xx_driver); 174 } 175 176 static void __exit zorro7xx_scsi_exit(void) 177 { 178 zorro_unregister_driver(&zorro7xx_driver); 179 } 180 181 module_init(zorro7xx_scsi_init); 182 module_exit(zorro7xx_scsi_exit); 183