diff options
| -rw-r--r-- | drivers/scsi/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/scsi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/scsi/mvme16x_scsi.c | 158 |
3 files changed, 162 insertions, 3 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 17a9efe0f61..915bf6caffe 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1008,7 +1008,7 @@ config SCSI_STEX config 53C700_BE_BUS bool - depends on BVME6000_SCSI + depends on MVME16x_SCSI || BVME6000_SCSI default y config SCSI_SYM53C8XX_2 @@ -1715,8 +1715,8 @@ config MVME147_SCSI single-board computer. config MVME16x_SCSI - bool "NCR53C710 SCSI driver for MVME16x" - depends on MVME16x && SCSI && BROKEN + tristate "NCR53C710 SCSI driver for MVME16x" + depends on MVME16x && SCSI select SCSI_SPI_ATTRS help The Motorola MVME162, 166, 167, 172 and 177 boards use the NCR53C710 diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 77dd63d71c5..4bc4ef8d420 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_ATARI_SCSI) += atari_scsi.o obj-$(CONFIG_MAC_SCSI) += mac_scsi.o obj-$(CONFIG_SCSI_MAC_ESP) += mac_esp.o NCR53C9x.o obj-$(CONFIG_SUN3_SCSI) += sun3_scsi.o sun3_scsi_vme.o +obj-$(CONFIG_MVME16x_SCSI) += 53c700.o mvme16x_scsi.o obj-$(CONFIG_BVME6000_SCSI) += 53c700.o bvme6000_scsi.o obj-$(CONFIG_SCSI_SIM710) += 53c700.o sim710.o obj-$(CONFIG_SCSI_ADVANSYS) += advansys.o diff --git a/drivers/scsi/mvme16x_scsi.c b/drivers/scsi/mvme16x_scsi.c new file mode 100644 index 00000000000..d6ef22a941c --- /dev/null +++ b/drivers/scsi/mvme16x_scsi.c @@ -0,0 +1,158 @@ +/* + * Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux. + * + * Based on work by Alan Hourihane + * + * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org> + */ + +#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/mvme16xhw.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("Kars de Jong <jongk@linux-m68k.org>"); +MODULE_DESCRIPTION("MVME16x NCR53C710 driver"); +MODULE_LICENSE("GPL"); + +static struct scsi_host_template mvme16x_scsi_driver_template = { + .name = "MVME16x NCR53c710 SCSI", + .proc_name = "MVME16x", + .this_id = 7, + .module = THIS_MODULE, +}; + +static struct platform_device *mvme16x_scsi_device; + +static __devinit int +mvme16x_probe(struct device *dev) +{ + struct Scsi_Host * host = NULL; + struct NCR_700_Host_Parameters *hostdata; + + if (!MACH_IS_MVME16x) + goto out; + + if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) { + printk(KERN_INFO "mvme16x-scsi: detection disabled, " + "SCSI chip not present\n"); + goto out; + } + + hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); + if (hostdata == NULL) { + printk(KERN_ERR "mvme16x-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 *)0xfff47000UL; + hostdata->clock = 50; /* 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(&mvme16x_scsi_driver_template, hostdata, dev); + if (!host) { + printk(KERN_ERR "mvme16x-scsi: No host detected; " + "board configuration problem?\n"); + goto out_free; + } + host->this_id = 7; + host->base = 0xfff47000UL; + host->irq = MVME16x_IRQ_SCSI; + if (request_irq(host->irq, NCR_700_intr, 0, "mvme16x-scsi", host)) { + printk(KERN_ERR "mvme16x-scsi: request_irq failed\n"); + goto out_put_host; + } + + /* Enable scsi chip ints */ + { + volatile unsigned long v; + + /* Enable scsi interrupts at level 4 in PCCchip2 */ + v = in_be32(0xfff4202c); + v = (v & ~0xff) | 0x10 | 4; + out_be32(0xfff4202c, v); + } + + scsi_scan_host(host); + + return 0; + + out_put_host: + scsi_host_put(host); + out_free: + kfree(hostdata); + out: + return -ENODEV; +} + +static __devexit int +mvme16x_device_remove(struct device *dev) +{ + struct Scsi_Host *host = dev_to_shost(dev); + struct NCR_700_Host_Parameters *hostdata = shost_priv(host); + + /* Disable scsi chip ints */ + { + volatile unsigned long v; + + v = in_be32(0xfff4202c); + v &= ~0x10; + out_be32(0xfff4202c, v); + } + scsi_remove_host(host); + NCR_700_release(host); + kfree(hostdata); + free_irq(host->irq, host); + + return 0; +} + +static struct device_driver mvme16x_scsi_driver = { + .name = "mvme16x-scsi", + .bus = &platform_bus_type, + .probe = mvme16x_probe, + .remove = __devexit_p(mvme16x_device_remove), +}; + +static int __init mvme16x_scsi_init(void) +{ + int err; + + err = driver_register(&mvme16x_scsi_driver); + if (err) + return err; + + mvme16x_scsi_device = platform_device_register_simple("mvme16x-scsi", + -1, NULL, 0); + if (IS_ERR(mvme16x_scsi_device)) { + driver_unregister(&mvme16x_scsi_driver); + return PTR_ERR(mvme16x_scsi_device); + } + + return 0; +} + +static void __exit mvme16x_scsi_exit(void) +{ + platform_device_unregister(mvme16x_scsi_device); + driver_unregister(&mvme16x_scsi_driver); +} + +module_init(mvme16x_scsi_init); +module_exit(mvme16x_scsi_exit); |