11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* -*- mode: c; c-basic-offset: 8 -*- */ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* PARISC LASI driver for the 53c700 chip 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds**----------------------------------------------------------------------------- 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** This program is free software; you can redistribute it and/or modify 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** it under the terms of the GNU General Public License as published by 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** the Free Software Foundation; either version 2 of the License, or 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** (at your option) any later version. 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** This program is distributed in the hope that it will be useful, 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** but WITHOUT ANY WARRANTY; without even the implied warranty of 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** GNU General Public License for more details. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** You should have received a copy of the GNU General Public License 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** along with this program; if not, write to the Free Software 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds** 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds**----------------------------------------------------------------------------- 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Many thanks to Richard Hirst <rhirst@linuxcare.com> for patiently 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * debugging this driver on the parisc architecture and suggesting 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * many improvements and bug fixes. 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Thanks also go to Linuxcare Inc. for providing several PARISC 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * machines for me to debug the driver on. 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/stat.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkdev.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ioport.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/dma-mapping.h> 435a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/page.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/pgtable.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/hardware.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/parisc-device.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/delay.h> 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_device.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport_spi.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "53c700.h" 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("James Bottomley"); 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("lasi700 SCSI Driver"); 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI_700_SVERSION 0x00071 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI_710_SVERSION 0x00082 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI700_ID_TABLE { \ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hw_type = HPHW_FIO, \ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sversion = LASI_700_SVERSION, \ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hversion = HVERSION_ANY_ID, \ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hversion_rev = HVERSION_REV_ANY_ID, \ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI710_ID_TABLE { \ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hw_type = HPHW_FIO, \ 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sversion = LASI_710_SVERSION, \ 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hversion = HVERSION_ANY_ID, \ 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .hversion_rev = HVERSION_REV_ANY_ID, \ 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI700_CLOCK 25 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI710_CLOCK 40 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LASI_SCSI_CORE_OFFSET 0x100 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct parisc_device_id lasi700_ids[] = { 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LASI700_ID_TABLE, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LASI710_ID_TABLE, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct scsi_host_template lasi700_template = { 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "LASI SCSI 53c700", 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .proc_name = "lasi700", 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .this_id = 7, 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .module = THIS_MODULE, 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(parisc, lasi700_ids); 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslasi700_probe(struct parisc_device *dev) 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10153f01bba49938f115237fe43a261c31ac13ae5c6Matthew Wilcox unsigned long base = dev->hpa.start + LASI_SCSI_CORE_OFFSET; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct NCR_700_Host_Parameters *hostdata; 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *host; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105dd00cc486ab1c17049a535413d1751ef3482141cYoann Padioleau hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hostdata) { 1077f384ce780c6091968fc848b14f17b45cb849e14Helge Deller dev_printk(KERN_ERR, &dev->dev, "Failed to allocate host data\n"); 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->dev = &dev->dev; 112284901a90a9e0b812ca3f5f852cbbfb60d10249dYang Hongyang dma_set_mask(&dev->dev, DMA_BIT_MASK(32)); 1135076c15862644edb91d2e3436b2fa3e07b28385dHelge Deller hostdata->base = ioremap_nocache(base, 0x100); 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->differential = 0; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->id.sversion == LASI_700_SVERSION) { 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->clock = LASI700_CLOCK; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->force_le_on_be = 1; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->clock = LASI710_CLOCK; 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->force_le_on_be = 0; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->chip710 = 1; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hostdata->dmode_extra = DMODE_FC2; 124f67a9c1592b3a0292376bdcbdcc34cbe353967a8Thomas Bogendoerfer hostdata->burst_length = 8; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds host = NCR_700_detect(&lasi700_template, hostdata, &dev->dev); 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!host) 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_kfree; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds host->this_id = 7; 13156fece20086ebe32bce2c0d74ceadd516b56baae<jejb@mulgrave.(none)> host->base = base; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds host->irq = dev->irq; 1331d6f359a2e06296418481239f8054a878f36e819Thomas Gleixner if(request_irq(dev->irq, NCR_700_intr, IRQF_SHARED, "lasi700", host)) { 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "lasi700: request_irq failed!\n"); 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out_put_host; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_set_drvdata(&dev->dev, host); 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_scan_host(host); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds out_put_host: 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_host_put(host); 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds out_kfree: 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(hostdata->base); 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hostdata); 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __exit 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslasi700_driver_remove(struct parisc_device *dev) 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *host = dev_get_drvdata(&dev->dev); 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct NCR_700_Host_Parameters *hostdata = 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (struct NCR_700_Host_Parameters *)host->hostdata[0]; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_remove_host(host); 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NCR_700_release(host); 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(host->irq, host); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds iounmap(hostdata->base); 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hostdata); 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct parisc_driver lasi700_driver = { 168bdad1f836ab1ca2b18a625222f63f630cfd14e41Matthew Wilcox .name = "lasi_scsi", 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = lasi700_ids, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = lasi700_probe, 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .remove = __devexit_p(lasi700_driver_remove), 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslasi700_init(void) 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return register_parisc_driver(&lasi700_driver); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldslasi700_exit(void) 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_parisc_driver(&lasi700_driver); 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(lasi700_init); 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(lasi700_exit); 188