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 #include <linux/slab.h> 17 18 #include <asm/amigahw.h> 19 #include <asm/amigaints.h> 20 21 #include <scsi/scsi_host.h> 22 #include <scsi/scsi_transport_spi.h> 23 24 #include "53c700.h" 25 26 MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>"); 27 MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver"); 28 MODULE_LICENSE("GPL"); 29 30 31 static struct scsi_host_template zorro7xx_scsi_driver_template = { 32 .proc_name = "zorro7xx", 33 .this_id = 7, 34 .module = THIS_MODULE, 35 }; 36 37 static struct zorro_driver_data { 38 const char *name; 39 unsigned long offset; 40 int absolute; /* offset is absolute address */ 41 } zorro7xx_driver_data[] __devinitdata = { 42 { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 }, 43 { .name = "WarpEngine 40xx", .offset = 0x40000 }, 44 { .name = "A4091", .offset = 0x800000 }, 45 { .name = "GForce 040/060", .offset = 0x40000 }, 46 { 0 } 47 }; 48 49 static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = { 50 { 51 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, 52 .driver_data = (unsigned long)&zorro7xx_driver_data[0], 53 }, 54 { 55 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, 56 .driver_data = (unsigned long)&zorro7xx_driver_data[1], 57 }, 58 { 59 .id = ZORRO_PROD_CBM_A4091_1, 60 .driver_data = (unsigned long)&zorro7xx_driver_data[2], 61 }, 62 { 63 .id = ZORRO_PROD_CBM_A4091_2, 64 .driver_data = (unsigned long)&zorro7xx_driver_data[2], 65 }, 66 { 67 .id = ZORRO_PROD_GVP_GFORCE_040_060, 68 .driver_data = (unsigned long)&zorro7xx_driver_data[3], 69 }, 70 { 0 } 71 }; 72 73 static int __devinit zorro7xx_init_one(struct zorro_dev *z, 74 const struct zorro_device_id *ent) 75 { 76 struct Scsi_Host *host; 77 struct NCR_700_Host_Parameters *hostdata; 78 struct zorro_driver_data *zdd; 79 unsigned long board, ioaddr; 80 81 board = zorro_resource_start(z); 82 zdd = (struct zorro_driver_data *)ent->driver_data; 83 84 if (zdd->absolute) { 85 ioaddr = zdd->offset; 86 } else { 87 ioaddr = board + zdd->offset; 88 } 89 90 if (!zorro_request_device(z, zdd->name)) { 91 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", 92 board); 93 return -EBUSY; 94 } 95 96 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); 97 if (!hostdata) { 98 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); 99 goto out_release; 100 } 101 102 /* Fill in the required pieces of hostdata */ 103 if (ioaddr > 0x01000000) 104 hostdata->base = ioremap(ioaddr, zorro_resource_len(z)); 105 else 106 hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr); 107 108 hostdata->clock = 50; 109 hostdata->chip710 = 1; 110 111 /* Settings for at least WarpEngine 40xx */ 112 hostdata->ctest7_extra = CTEST7_TT1; 113 114 zorro7xx_scsi_driver_template.name = zdd->name; 115 116 /* and register the chip */ 117 host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata, 118 &z->dev); 119 if (!host) { 120 printk(KERN_ERR "zorro7xx: No host detected; " 121 "board configuration problem?\n"); 122 goto out_free; 123 } 124 125 host->this_id = 7; 126 host->base = ioaddr; 127 host->irq = IRQ_AMIGA_PORTS; 128 129 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi", 130 host)) { 131 printk(KERN_ERR "zorro7xx: request_irq failed\n"); 132 goto out_put_host; 133 } 134 135 zorro_set_drvdata(z, host); 136 scsi_scan_host(host); 137 138 return 0; 139 140 out_put_host: 141 scsi_host_put(host); 142 out_free: 143 if (ioaddr > 0x01000000) 144 iounmap(hostdata->base); 145 kfree(hostdata); 146 out_release: 147 zorro_release_device(z); 148 149 return -ENODEV; 150 } 151 152 static __devexit void zorro7xx_remove_one(struct zorro_dev *z) 153 { 154 struct Scsi_Host *host = zorro_get_drvdata(z); 155 struct NCR_700_Host_Parameters *hostdata = shost_priv(host); 156 157 scsi_remove_host(host); 158 159 NCR_700_release(host); 160 kfree(hostdata); 161 free_irq(host->irq, host); 162 zorro_release_device(z); 163 } 164 165 static struct zorro_driver zorro7xx_driver = { 166 .name = "zorro7xx-scsi", 167 .id_table = zorro7xx_zorro_tbl, 168 .probe = zorro7xx_init_one, 169 .remove = __devexit_p(zorro7xx_remove_one), 170 }; 171 172 static int __init zorro7xx_scsi_init(void) 173 { 174 return zorro_register_driver(&zorro7xx_driver); 175 } 176 177 static void __exit zorro7xx_scsi_exit(void) 178 { 179 zorro_unregister_driver(&zorro7xx_driver); 180 } 181 182 module_init(zorro7xx_scsi_init); 183 module_exit(zorro7xx_scsi_exit); 184