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author | Kars de Jong <jongk@linux-m68k.org> | 2007-06-17 14:47:06 +0200 |
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committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-06-17 16:16:53 -0500 |
commit | 8276b58af4dd1c406aa5fe0fa010a6fc92283cb1 (patch) | |
tree | 3f2478c021dccc97af8a997532481e88210cc882 /drivers/scsi/bvme6000_scsi.c | |
parent | 632731345bfb87fd1f4dc509928cc4a7efc12a89 (diff) | |
download | kernel_samsung_smdk4412-8276b58af4dd1c406aa5fe0fa010a6fc92283cb1.zip kernel_samsung_smdk4412-8276b58af4dd1c406aa5fe0fa010a6fc92283cb1.tar.gz kernel_samsung_smdk4412-8276b58af4dd1c406aa5fe0fa010a6fc92283cb1.tar.bz2 |
[SCSI] 53c700: m68k BVME6000 NCR53C710 SCSI
New driver for the BVME6000 NCR53C710 SCSI controller, using the 53c700 SCSI
core.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/bvme6000_scsi.c')
-rw-r--r-- | drivers/scsi/bvme6000_scsi.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/scsi/bvme6000_scsi.c b/drivers/scsi/bvme6000_scsi.c new file mode 100644 index 0000000..1a79e18 --- /dev/null +++ b/drivers/scsi/bvme6000_scsi.c @@ -0,0 +1,135 @@ +/* + * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. + * + * Based on work by Alan Hourihane and Kars de Jong + * + * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk> + */ + +#include <linux/module.h> +#include <linux/blkdev.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <asm/bvme6000hw.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("Richard Hirst <richard@sleepie.demon.co.uk>"); +MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); +MODULE_LICENSE("GPL"); + +static struct scsi_host_template bvme6000_scsi_driver_template = { + .name = "BVME6000 NCR53c710 SCSI", + .proc_name = "BVME6000", + .this_id = 7, + .module = THIS_MODULE, +}; + +static struct platform_device *bvme6000_scsi_device; + +static __devinit int +bvme6000_probe(struct device *dev) +{ + struct Scsi_Host * host = NULL; + struct NCR_700_Host_Parameters *hostdata; + + if (!MACH_IS_BVME6000) + goto out; + + hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); + if (hostdata == NULL) { + printk(KERN_ERR "bvme6000-scsi: " + "Failed to allocate host data\n"); + goto out; + } + memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); + + /* Fill in the required pieces of hostdata */ + hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; + hostdata->clock = 40; /* XXX - depends on the CPU clock! */ + hostdata->chip710 = 1; + hostdata->dmode_extra = DMODE_FC2; + hostdata->dcntl_extra = EA_710; + hostdata->ctest7_extra = CTEST7_TT1; + + /* and register the chip */ + host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, dev); + if (!host) { + printk(KERN_ERR "bvme6000-scsi: No host detected; " + "board configuration problem?\n"); + goto out_free; + } + host->base = BVME_NCR53C710_BASE; + host->this_id = 7; + host->irq = BVME_IRQ_SCSI; + if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", + host)) { + printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); + goto out_put_host; + } + + scsi_scan_host(host); + + return 0; + + out_put_host: + scsi_host_put(host); + out_free: + kfree(hostdata); + out: + return -ENODEV; +} + +static __devexit int +bvme6000_device_remove(struct device *dev) +{ + struct Scsi_Host *host = dev_to_shost(dev); + struct NCR_700_Host_Parameters *hostdata = shost_priv(host); + + scsi_remove_host(host); + NCR_700_release(host); + kfree(hostdata); + free_irq(host->irq, host); + + return 0; +} + +static struct device_driver bvme6000_scsi_driver = { + .name = "bvme6000-scsi", + .bus = &platform_bus_type, + .probe = bvme6000_probe, + .remove = __devexit_p(bvme6000_device_remove), +}; + +static int __init bvme6000_scsi_init(void) +{ + int err; + + err = driver_register(&bvme6000_scsi_driver); + if (err) { + return err; + + bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", + -1, NULL, 0); + if (IS_ERR(bvme6000_scsi_device)) { + driver_unregister(&bvme6000_scsi_driver); + return PTR_ERR(bvme6000_scsi_device); + } + + return 0; +} + +static void __exit bvme6000_scsi_exit(void) +{ + platform_device_unregister(bvme6000_scsi_device); + driver_unregister(&bvme6000_scsi_driver); +} + +module_init(bvme6000_scsi_init); +module_exit(bvme6000_scsi_exit); |