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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.4 * Amiga MacroSystemUS WarpEngine SCSI controller.5 * Amiga Technologies/DKB A4091 SCSI controller.6 *7 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>8 * plus modifications of the 53c7xx.c driver to support the Amiga.9 *10 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>11 */12 13#include <linux/module.h>14#include <linux/init.h>15#include <linux/interrupt.h>16#include <linux/zorro.h>17#include <linux/slab.h>18 19#include <asm/amigahw.h>20#include <asm/amigaints.h>21 22#include <scsi/scsi_host.h>23#include <scsi/scsi_transport_spi.h>24 25#include "53c700.h"26 27MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");28MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");29MODULE_LICENSE("GPL");30 31 32static struct scsi_host_template zorro7xx_scsi_driver_template = {33 .proc_name = "zorro7xx",34 .this_id = 7,35 .module = THIS_MODULE,36};37 38static struct zorro_driver_data {39 const char *name;40 unsigned long offset;41 int absolute; /* offset is absolute address */42} zorro7xx_driver_data[] = {43 { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },44 { .name = "WarpEngine 40xx", .offset = 0x40000 },45 { .name = "A4091", .offset = 0x800000 },46 { .name = "GForce 040/060", .offset = 0x40000 },47 { 0 }48};49 50static struct zorro_device_id zorro7xx_zorro_tbl[] = {51 {52 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,53 .driver_data = (unsigned long)&zorro7xx_driver_data[0],54 },55 {56 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,57 .driver_data = (unsigned long)&zorro7xx_driver_data[1],58 },59 {60 .id = ZORRO_PROD_CBM_A4091_1,61 .driver_data = (unsigned long)&zorro7xx_driver_data[2],62 },63 {64 .id = ZORRO_PROD_CBM_A4091_2,65 .driver_data = (unsigned long)&zorro7xx_driver_data[2],66 },67 {68 .id = ZORRO_PROD_GVP_GFORCE_040_060,69 .driver_data = (unsigned long)&zorro7xx_driver_data[3],70 },71 { 0 }72};73MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);74 75static int zorro7xx_init_one(struct zorro_dev *z,76 const struct zorro_device_id *ent)77{78 struct Scsi_Host *host;79 struct NCR_700_Host_Parameters *hostdata;80 struct zorro_driver_data *zdd;81 unsigned long board, ioaddr;82 83 board = zorro_resource_start(z);84 zdd = (struct zorro_driver_data *)ent->driver_data;85 86 if (zdd->absolute) {87 ioaddr = zdd->offset;88 } else {89 ioaddr = board + zdd->offset;90 }91 92 if (!zorro_request_device(z, zdd->name)) {93 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",94 board);95 return -EBUSY;96 }97 98 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);99 if (!hostdata) {100 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");101 goto out_release;102 }103 104 /* Fill in the required pieces of hostdata */105 if (ioaddr > 0x01000000)106 hostdata->base = ioremap(ioaddr, zorro_resource_len(z));107 else108 hostdata->base = ZTWO_VADDR(ioaddr);109 110 hostdata->clock = 50;111 hostdata->chip710 = 1;112 113 /* Settings for at least WarpEngine 40xx */114 hostdata->ctest7_extra = CTEST7_TT1;115 116 zorro7xx_scsi_driver_template.name = zdd->name;117 118 /* and register the chip */119 host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,120 &z->dev);121 if (!host) {122 printk(KERN_ERR "zorro7xx: No host detected; "123 "board configuration problem?\n");124 goto out_free;125 }126 127 host->this_id = 7;128 host->base = ioaddr;129 host->irq = IRQ_AMIGA_PORTS;130 131 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",132 host)) {133 printk(KERN_ERR "zorro7xx: request_irq failed\n");134 goto out_put_host;135 }136 137 zorro_set_drvdata(z, host);138 scsi_scan_host(host);139 140 return 0;141 142 out_put_host:143 scsi_host_put(host);144 out_free:145 if (ioaddr > 0x01000000)146 iounmap(hostdata->base);147 kfree(hostdata);148 out_release:149 zorro_release_device(z);150 151 return -ENODEV;152}153 154static void zorro7xx_remove_one(struct zorro_dev *z)155{156 struct Scsi_Host *host = zorro_get_drvdata(z);157 struct NCR_700_Host_Parameters *hostdata = shost_priv(host);158 159 scsi_remove_host(host);160 161 NCR_700_release(host);162 if (host->base > 0x01000000)163 iounmap(hostdata->base);164 kfree(hostdata);165 free_irq(host->irq, host);166 zorro_release_device(z);167}168 169static struct zorro_driver zorro7xx_driver = {170 .name = "zorro7xx-scsi",171 .id_table = zorro7xx_zorro_tbl,172 .probe = zorro7xx_init_one,173 .remove = zorro7xx_remove_one,174};175 176static int __init zorro7xx_scsi_init(void)177{178 return zorro_register_driver(&zorro7xx_driver);179}180 181static void __exit zorro7xx_scsi_exit(void)182{183 zorro_unregister_driver(&zorro7xx_driver);184}185 186module_init(zorro7xx_scsi_init);187module_exit(zorro7xx_scsi_exit);188