diff options
Diffstat (limited to 'drivers/scsi/sgiwd93.c')
| -rw-r--r-- | drivers/scsi/sgiwd93.c | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c index 8e516723e..8f809b530 100644 --- a/drivers/scsi/sgiwd93.c +++ b/drivers/scsi/sgiwd93.c @@ -2,10 +2,12 @@ * sgiwd93.c: SGI WD93 scsi driver. * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) - * + * 1999 Andrew R. Baker (andrewb@uab.edu) + * - Support for 2nd SCSI controller on Indigo2 + * * (In all truth, Jed Schimmel wrote all this code.) * - * $Id: sgiwd93.c,v 1.12 1999/03/28 22:03:20 tsbogend Exp $ + * $Id: sgiwd93.c,v 1.13 1999/03/28 23:06:06 tsbogend Exp $ */ #include <linux/init.h> #include <linux/types.h> @@ -43,6 +45,7 @@ struct proc_dir_entry proc_scsi_sgiwd93 = { }; struct Scsi_Host *sgiwd93_host = NULL; +struct Scsi_Host *sgiwd93_host1 = NULL; /* Wuff wuff, wuff, wd33c93.c, wuff wuff, object oriented, bow wow. */ static inline void write_wd33c93_count(wd33c93_regs *regp, unsigned long value) @@ -70,7 +73,7 @@ static void sgiwd93_intr(int irq, void *dev_id, struct pt_regs *regs) unsigned long flags; spin_lock_irqsave(&io_request_lock, flags); - wd33c93_intr(sgiwd93_host); + wd33c93_intr((struct Scsi_Host *) dev_id); spin_unlock_irqrestore(&io_request_lock, flags); } @@ -236,9 +239,9 @@ static void dma_stop(struct Scsi_Host *instance, Scsi_Cmnd *SCpnt, #endif } -void sgiwd93_reset(void) +void sgiwd93_reset(uchar *base) { - struct hpc3_scsiregs *hregs = &hpc3c0->scsi_chan0; + struct hpc3_scsiregs *hregs = (struct hpc3_scsiregs *) base; hregs->ctrl = HPC3_SCTRL_CRESET; udelay (50); @@ -266,9 +269,11 @@ __initfunc(int sgiwd93_detect(Scsi_Host_Template *HPsUX)) { static unsigned char called = 0; struct hpc3_scsiregs *hregs = &hpc3c0->scsi_chan0; + struct hpc3_scsiregs *hregs1 = &hpc3c0->scsi_chan1; struct WD33C93_hostdata *hdata; + struct WD33C93_hostdata *hdata1; uchar *buf; - + if(called) return 0; /* Should bitch on the console about this... */ @@ -281,7 +286,7 @@ __initfunc(int sgiwd93_detect(Scsi_Host_Template *HPsUX)) buf = (uchar *) get_free_page(GFP_KERNEL); init_hpc_chain(buf); dma_cache_wback_inv((unsigned long) buf, PAGE_SIZE); - + /* HPC_SCSI_REG0 | 0x03 | KSEG1 */ wd33c93_init(sgiwd93_host, (wd33c93_regs *) 0xbfbc0003, dma_setup, dma_stop, WD33C93_FS_16_20); @@ -291,6 +296,27 @@ __initfunc(int sgiwd93_detect(Scsi_Host_Template *HPsUX)) dma_cache_wback_inv((unsigned long) buf, PAGE_SIZE); request_irq(1, sgiwd93_intr, 0, "SGI WD93", (void *) sgiwd93_host); + /* set up second controller on the Indigo2 */ + if(!sgi_guiness) { + sgiwd93_host1 = scsi_register(HPsUX, sizeof(struct WD33C93_hostdata)); + sgiwd93_host1->base = (unsigned char *) hregs1; + sgiwd93_host1->irq = 2; + + buf = (uchar *) get_free_page(GFP_KERNEL); + init_hpc_chain(buf); + dma_cache_wback_inv((unsigned long) buf, PAGE_SIZE); + /* HPC_SCSI_REG1 | 0x03 | KSEG1 */ + wd33c93_init(sgiwd93_host1, (wd33c93_regs *) 0xbfbc8003, + dma_setup, dma_stop, WD33C93_FS_16_20); + + hdata1 = (struct WD33C93_hostdata *)sgiwd93_host1->hostdata; + hdata1->no_sync = 0; + hdata1->dma_bounce_buffer = (uchar *) (KSEG1ADDR(buf)); + dma_cache_wback_inv((unsigned long) buf, PAGE_SIZE); + + request_irq(2, sgiwd93_intr, 0, "SGI WD93", (void *) sgiwd93_host1); + } + called = 1; return 1; /* Found one. */ |