| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* -*- mode: c; c-basic-offset: 8 -*- */ |
| |
| /* SNI RM driver |
| * |
| * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com |
| **----------------------------------------------------------------------------- |
| ** |
| ** |
| **----------------------------------------------------------------------------- |
| */ |
| |
| /* |
| * Based on lasi700.c |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/types.h> |
| #include <linux/slab.h> |
| #include <linux/stat.h> |
| #include <linux/mm.h> |
| #include <linux/blkdev.h> |
| #include <linux/sched.h> |
| #include <linux/ioport.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/platform_device.h> |
| |
| #include <asm/page.h> |
| #include <asm/pgtable.h> |
| #include <asm/irq.h> |
| #include <asm/delay.h> |
| |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_transport.h> |
| #include <scsi/scsi_transport_spi.h> |
| |
| #include "53c700.h" |
| |
| MODULE_AUTHOR("Thomas Bogendörfer"); |
| MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:snirm_53c710"); |
| |
| #define SNIRM710_CLOCK 32 |
| |
| static struct scsi_host_template snirm710_template = { |
| .name = "SNI RM SCSI 53c710", |
| .proc_name = "snirm_53c710", |
| .this_id = 7, |
| .module = THIS_MODULE, |
| }; |
| |
| static int snirm710_probe(struct platform_device *dev) |
| { |
| unsigned long base; |
| struct NCR_700_Host_Parameters *hostdata; |
| struct Scsi_Host *host; |
| struct resource *res; |
| |
| res = platform_get_resource(dev, IORESOURCE_MEM, 0); |
| if (!res) |
| return -ENODEV; |
| |
| base = res->start; |
| hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); |
| if (!hostdata) |
| return -ENOMEM; |
| |
| hostdata->dev = &dev->dev; |
| dma_set_mask(&dev->dev, DMA_BIT_MASK(32)); |
| hostdata->base = ioremap(base, 0x100); |
| hostdata->differential = 0; |
| |
| hostdata->clock = SNIRM710_CLOCK; |
| hostdata->force_le_on_be = 1; |
| hostdata->chip710 = 1; |
| hostdata->burst_length = 4; |
| |
| host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev); |
| if (!host) |
| goto out_kfree; |
| host->this_id = 7; |
| host->base = base; |
| host->irq = platform_get_irq(dev, 0); |
| if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) { |
| printk(KERN_ERR "snirm710: request_irq failed!\n"); |
| goto out_put_host; |
| } |
| |
| dev_set_drvdata(&dev->dev, host); |
| scsi_scan_host(host); |
| |
| return 0; |
| |
| out_put_host: |
| scsi_host_put(host); |
| out_kfree: |
| iounmap(hostdata->base); |
| kfree(hostdata); |
| return -ENODEV; |
| } |
| |
| static int snirm710_driver_remove(struct platform_device *dev) |
| { |
| struct Scsi_Host *host = dev_get_drvdata(&dev->dev); |
| struct NCR_700_Host_Parameters *hostdata = |
| (struct NCR_700_Host_Parameters *)host->hostdata[0]; |
| |
| scsi_remove_host(host); |
| NCR_700_release(host); |
| free_irq(host->irq, host); |
| iounmap(hostdata->base); |
| kfree(hostdata); |
| |
| return 0; |
| } |
| |
| static struct platform_driver snirm710_driver = { |
| .probe = snirm710_probe, |
| .remove = snirm710_driver_remove, |
| .driver = { |
| .name = "snirm_53c710", |
| }, |
| }; |
| |
| static int __init snirm710_init(void) |
| { |
| return platform_driver_register(&snirm710_driver); |
| } |
| |
| static void __exit snirm710_exit(void) |
| { |
| platform_driver_unregister(&snirm710_driver); |
| } |
| |
| module_init(snirm710_init); |
| module_exit(snirm710_exit); |