int sun3scsi_detect(struct scsi_host_template * tpnt)
{
unsigned long ioaddr;
static int called = 0;
struct Scsi_Host *instance;
/* check that this machine has an onboard 5380 */
switch(idprom->id_machtype) {
case SM_SUN3|SM_3_50:
case SM_SUN3|SM_3_60:
break;
default:
return 0;
}
if(called)
return 0;
tpnt->proc_name = "Sun3 5380 SCSI";
/* setup variables */
tpnt->can_queue =
(setup_can_queue > 0) ? setup_can_queue : CAN_QUEUE;
tpnt->cmd_per_lun =
(setup_cmd_per_lun > 0) ? setup_cmd_per_lun : CMD_PER_LUN;
tpnt->sg_tablesize =
(setup_sg_tablesize >= 0) ? setup_sg_tablesize : SG_TABLESIZE;
if (setup_hostid >= 0)
tpnt->this_id = setup_hostid;
else {
/* use 7 as default */
tpnt->this_id = 7;
}
ioaddr = (unsigned long)ioremap(IOBASE_SUN3_SCSI, PAGE_SIZE);
sun3_scsi_regp = (unsigned char *)ioaddr;
dregs = (struct sun3_dma_regs *)(((unsigned char *)ioaddr) + 8);
if((udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs)))
== NULL) {
printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
return 0;
}
#ifdef OLDDMA
if((dmabuf = dvma_malloc_align(SUN3_DVMA_BUFSIZE, 0x10000)) == NULL) {
printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
return 0;
}
#endif
#ifdef SUPPORT_TAGS
if (setup_use_tagged_queuing < 0)
setup_use_tagged_queuing = USE_TAGGED_QUEUING;
#endif
instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
if(instance == NULL)
return 0;
default_instance = instance;
instance->io_port = (unsigned long) ioaddr;
instance->irq = IRQ_SUN3_SCSI;
NCR5380_init(instance, 0);
instance->n_io_port = 32;
((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0;
if (request_irq(instance->irq, scsi_sun3_intr,
0, "Sun3SCSI-5380", instance)) {
#ifndef REAL_DMA
printk("scsi%d: IRQ%d not free, interrupts disabled\n",
instance->host_no, instance->irq);
instance->irq = SCSI_IRQ_NONE;
#else
printk("scsi%d: IRQ%d not free, bailing out\n",
instance->host_no, instance->irq);
return 0;
#endif
}
printk("scsi%d: Sun3 5380 at port %lX irq", instance->host_no, instance->io_port);
if (instance->irq == SCSI_IRQ_NONE)
printk ("s disabled");
else
printk (" %d", instance->irq);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
instance->can_queue, instance->cmd_per_lun,
SUN3SCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", instance->host_no);
NCR5380_print_options(instance);
printk("\n");
dregs->csr = 0;
udelay(SUN3_DMA_DELAY);
dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
udelay(SUN3_DMA_DELAY);
dregs->fifo_count = 0;
called = 1;
#ifdef RESET_BOOT
sun3_scsi_reset_boot(instance);
#endif
return 1;
}
void
ie_obio_attach(device_t parent, device_t self, void *args)
{
struct ie_softc *sc = device_private(self);
struct confargs *ca = args;
sc->sc_dev = self;
sc->hard_type = IE_OBIO;
sc->reset_586 = ie_obreset;
sc->chan_attn = ie_obattend;
sc->run_586 = ie_obrun;
sc->sc_memcpy = memcpy;
sc->sc_memset = memset;
/* Map in the control registers. */
sc->sc_reg = bus_mapin(ca->ca_bustype,
ca->ca_paddr, sizeof(struct ieob));
/*
* The on-board "ie" is wired-up such that its
* memory access goes to the high 16 megabytes
* of the on-board memory space (on-board DVMA).
*/
sc->sc_iobase = (void *)DVMA_OBIO_SLAVE_BASE;
/*
* The on-board "ie" just uses main memory, so
* we can choose how much memory to give it.
* XXX: Would like to use less than 64K...
*/
sc->sc_msize = 0x8000; /* MEMSIZE 32K */
/* Allocate "shared" memory (in DVMA space). */
sc->sc_maddr = dvma_malloc(sc->sc_msize);
if (sc->sc_maddr == NULL)
panic(": not enough dvma space");
/*
* Set the System Configuration Pointer (SCP).
* Its location is system-dependent because the
* i82586 reads it from a fixed physical address.
* On this hardware, the i82586 address maps to
* a 24-bit offset in on-board DVMA space. The
* SCP happens to fall in a page used by the
* PROM monitor, which the PROM knows about.
*/
sc->scp = (volatile void *)((char *)sc->sc_iobase + IE_SCP_ADDR);
/*
* The rest of ram is used for buffers.
*/
sc->buf_area = sc->sc_maddr;
sc->buf_area_sz = sc->sc_msize;
/* Install interrupt handler. */
isr_add_autovect(ie_intr, sc, ca->ca_intpri);
/* Set the ethernet address. */
idprom_etheraddr(sc->sc_addr);
/* Do machine-independent parts of attach. */
ie_attach(sc);
}
int sun3scsi_detect(Scsi_Host_Template * tpnt)
{
unsigned long ioaddr, iopte;
int count = 0;
static int called = 0;
struct Scsi_Host *instance;
/* check that this machine has an onboard 5380 */
switch(idprom->id_machtype) {
case SM_SUN3|SM_3_50:
case SM_SUN3|SM_3_60:
break;
default:
return 0;
}
if(called)
return 0;
tpnt->proc_name = "Sun3 5380 SCSI";
/* setup variables */
tpnt->can_queue =
(setup_can_queue > 0) ? setup_can_queue : CAN_QUEUE;
tpnt->cmd_per_lun =
(setup_cmd_per_lun > 0) ? setup_cmd_per_lun : CMD_PER_LUN;
tpnt->sg_tablesize =
(setup_sg_tablesize >= 0) ? setup_sg_tablesize : SG_TABLESIZE;
if (setup_hostid >= 0)
tpnt->this_id = setup_hostid;
else {
/* use 7 as default */
tpnt->this_id = 7;
}
/* Taken from Sammy's lance driver: */
/* IOBASE_SUN3_SCSI can be found within the IO pmeg with some effort */
for(ioaddr = 0xfe00000; ioaddr < (0xfe00000 + SUN3_PMEG_SIZE);
ioaddr += SUN3_PTE_SIZE) {
iopte = sun3_get_pte(ioaddr);
if(!(iopte & SUN3_PAGE_TYPE_IO)) /* this an io page? */
continue;
if(((iopte & SUN3_PAGE_PGNUM_MASK) << PAGE_SHIFT) ==
IOBASE_SUN3_SCSI) {
count = 1;
break;
}
}
if(!count) {
printk("No Sun3 NCR5380 found!\n");
return 0;
}
sun3_scsi_regp = (unsigned char *)ioaddr;
dregs = (struct sun3_dma_regs *)(((unsigned char *)ioaddr) + 8);
if((udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs)))
== NULL) {
printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
return 0;
}
#ifdef OLDDMA
if((dmabuf = dvma_malloc_align(SUN3_DVMA_BUFSIZE, 0x10000)) == NULL) {
printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
return 0;
}
#endif
#ifdef SUPPORT_TAGS
if (setup_use_tagged_queuing < 0)
setup_use_tagged_queuing = DEFAULT_USE_TAGGED_QUEUING;
#endif
instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
if(instance == NULL)
return 0;
default_instance = instance;
instance->io_port = (unsigned long) ioaddr;
instance->irq = IRQ_SUN3_SCSI;
NCR5380_init(instance, 0);
instance->n_io_port = 32;
((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0;
if (request_irq(instance->irq, scsi_sun3_intr,
0, "Sun3SCSI-5380", NULL)) {
#ifndef REAL_DMA
printk("scsi%d: IRQ%d not free, interrupts disabled\n",
instance->host_no, instance->irq);
instance->irq = IRQ_NONE;
#else
printk("scsi%d: IRQ%d not free, bailing out\n",
instance->host_no, instance->irq);
return 0;
#endif
}
printk("scsi%d: Sun3 5380 at port %lX irq", instance->host_no, instance->io_port);
if (instance->irq == IRQ_NONE)
printk ("s disabled");
else
printk (" %d", instance->irq);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
instance->can_queue, instance->cmd_per_lun,
SUN3SCSI_PUBLIC_RELEASE);
printk("\nscsi%d:", instance->host_no);
NCR5380_print_options(instance);
printk("\n");
dregs->csr = 0;
udelay(SUN3_DMA_DELAY);
dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
udelay(SUN3_DMA_DELAY);
dregs->fifo_count = 0;
called = 1;
return 1;
}
/* Detecting ESP chips on the machine. This is the simple and easy
* version.
*/
int sun3x_esp_detect(struct scsi_host_template *tpnt)
{
struct NCR_ESP *esp;
struct ConfigDev *esp_dev;
esp_dev = 0;
esp = esp_allocate(tpnt, (void *) esp_dev);
/* Do command transfer with DMA */
esp->do_pio_cmds = 0;
/* Required functions */
esp->dma_bytes_sent = &dma_bytes_sent;
esp->dma_can_transfer = &dma_can_transfer;
esp->dma_dump_state = &dma_dump_state;
esp->dma_init_read = &dma_init_read;
esp->dma_init_write = &dma_init_write;
esp->dma_ints_off = &dma_ints_off;
esp->dma_ints_on = &dma_ints_on;
esp->dma_irq_p = &dma_irq_p;
esp->dma_ports_p = &dma_ports_p;
esp->dma_setup = &dma_setup;
/* Optional functions */
esp->dma_barrier = &dma_barrier;
esp->dma_invalidate = &dma_invalidate;
esp->dma_drain = &dma_drain;
esp->dma_irq_entry = 0;
esp->dma_irq_exit = 0;
esp->dma_led_on = 0;
esp->dma_led_off = 0;
esp->dma_poll = &dma_poll;
esp->dma_reset = &dma_reset;
/* virtual DMA functions */
esp->dma_mmu_get_scsi_one = &dma_mmu_get_scsi_one;
esp->dma_mmu_get_scsi_sgl = &dma_mmu_get_scsi_sgl;
esp->dma_mmu_release_scsi_one = &dma_mmu_release_scsi_one;
esp->dma_mmu_release_scsi_sgl = &dma_mmu_release_scsi_sgl;
esp->dma_advance_sg = &dma_advance_sg;
/* SCSI chip speed */
esp->cfreq = 20000000;
esp->eregs = (struct ESP_regs *)(SUN3X_ESP_BASE);
esp->dregs = (void *)SUN3X_ESP_DMA;
esp->esp_command = (volatile unsigned char *)dvma_malloc(DVMA_PAGE_SIZE);
esp->esp_command_dvma = dvma_vtob((unsigned long)esp->esp_command);
esp->irq = 2;
if (request_irq(esp->irq, esp_intr, SA_INTERRUPT,
"SUN3X SCSI", esp->ehost)) {
esp_deallocate(esp);
return 0;
}
esp->scsi_id = 7;
esp->diff = 0;
esp_initialize(esp);
/* for reasons beyond my knowledge (and which should likely be fixed)
sync mode doesn't work on a 3/80 at 5mhz. but it does at 4. */
esp->sync_defp = 0x3f;
printk("ESP: Total of %d ESP hosts found, %d actually in use.\n", nesps,
esps_in_use);
esps_running = esps_in_use;
return esps_in_use;
}