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1// SPDX-License-Identifier: GPL-2.0-or-later2 3/* SNI RM driver4 *5 * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com6**-----------------------------------------------------------------------------7**8**9**-----------------------------------------------------------------------------10 */11 12/*13 * Based on lasi700.c14 */15 16#include <linux/kernel.h>17#include <linux/module.h>18#include <linux/init.h>19#include <linux/types.h>20#include <linux/slab.h>21#include <linux/stat.h>22#include <linux/mm.h>23#include <linux/blkdev.h>24#include <linux/sched.h>25#include <linux/ioport.h>26#include <linux/dma-mapping.h>27#include <linux/platform_device.h>28 29#include <asm/page.h>30#include <asm/irq.h>31#include <asm/delay.h>32 33#include <scsi/scsi_host.h>34#include <scsi/scsi_device.h>35#include <scsi/scsi_transport.h>36#include <scsi/scsi_transport_spi.h>37 38#include "53c700.h"39 40MODULE_AUTHOR("Thomas Bogendörfer");41MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver");42MODULE_LICENSE("GPL");43MODULE_ALIAS("platform:snirm_53c710");44 45#define SNIRM710_CLOCK 3246 47static struct scsi_host_template snirm710_template = {48 .name = "SNI RM SCSI 53c710",49 .proc_name = "snirm_53c710",50 .this_id = 7,51 .module = THIS_MODULE,52};53 54static int snirm710_probe(struct platform_device *dev)55{56 unsigned long base;57 struct NCR_700_Host_Parameters *hostdata;58 struct Scsi_Host *host;59 struct resource *res;60 int rc;61 62 res = platform_get_resource(dev, IORESOURCE_MEM, 0);63 if (!res)64 return -ENODEV;65 66 base = res->start;67 hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);68 if (!hostdata)69 return -ENOMEM;70 71 hostdata->dev = &dev->dev;72 dma_set_mask(&dev->dev, DMA_BIT_MASK(32));73 hostdata->base = ioremap(base, 0x100);74 hostdata->differential = 0;75 76 hostdata->clock = SNIRM710_CLOCK;77 hostdata->force_le_on_be = 1;78 hostdata->chip710 = 1;79 hostdata->burst_length = 4;80 81 host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev);82 if (!host)83 goto out_kfree;84 host->this_id = 7;85 host->base = base;86 host->irq = rc = platform_get_irq(dev, 0);87 if (rc < 0)88 goto out_put_host;89 if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) {90 printk(KERN_ERR "snirm710: request_irq failed!\n");91 goto out_put_host;92 }93 94 dev_set_drvdata(&dev->dev, host);95 scsi_scan_host(host);96 97 return 0;98 99 out_put_host:100 scsi_host_put(host);101 out_kfree:102 iounmap(hostdata->base);103 kfree(hostdata);104 return -ENODEV;105}106 107static void snirm710_driver_remove(struct platform_device *dev)108{109 struct Scsi_Host *host = dev_get_drvdata(&dev->dev);110 struct NCR_700_Host_Parameters *hostdata =111 (struct NCR_700_Host_Parameters *)host->hostdata[0];112 113 scsi_remove_host(host);114 NCR_700_release(host);115 free_irq(host->irq, host);116 iounmap(hostdata->base);117 kfree(hostdata);118}119 120static struct platform_driver snirm710_driver = {121 .probe = snirm710_probe,122 .remove_new = snirm710_driver_remove,123 .driver = {124 .name = "snirm_53c710",125 },126};127module_platform_driver(snirm710_driver);128