653 lines
17 KiB
C
653 lines
17 KiB
C
/*
|
|
* linux/arch/alpha/kernel/sys_sable.c
|
|
*
|
|
* Copyright (C) 1995 David A Rusling
|
|
* Copyright (C) 1996 Jay A Estabrook
|
|
* Copyright (C) 1998, 1999 Richard Henderson
|
|
*
|
|
* Code supporting the Sable, Sable-Gamma, and Lynx systems.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/system.h>
|
|
#include <asm/dma.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mmu_context.h>
|
|
#include <asm/io.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/core_t2.h>
|
|
#include <asm/tlbflush.h>
|
|
|
|
#include "proto.h"
|
|
#include "irq_impl.h"
|
|
#include "pci_impl.h"
|
|
#include "machvec_impl.h"
|
|
|
|
DEFINE_SPINLOCK(sable_lynx_irq_lock);
|
|
|
|
typedef struct irq_swizzle_struct
|
|
{
|
|
char irq_to_mask[64];
|
|
char mask_to_irq[64];
|
|
|
|
/* Note mask bit is true for DISABLED irqs. */
|
|
unsigned long shadow_mask;
|
|
|
|
void (*update_irq_hw)(unsigned long bit, unsigned long mask);
|
|
void (*ack_irq_hw)(unsigned long bit);
|
|
|
|
} irq_swizzle_t;
|
|
|
|
static irq_swizzle_t *sable_lynx_irq_swizzle;
|
|
|
|
static void sable_lynx_init_irq(int nr_of_irqs);
|
|
|
|
#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE)
|
|
|
|
/***********************************************************************/
|
|
/*
|
|
* For SABLE, which is really baroque, we manage 40 IRQ's, but the
|
|
* hardware really only supports 24, not via normal ISA PIC,
|
|
* but cascaded custom 8259's, etc.
|
|
* 0-7 (char at 536)
|
|
* 8-15 (char at 53a)
|
|
* 16-23 (char at 53c)
|
|
*
|
|
* Summary Registers (536/53a/53c):
|
|
*
|
|
* Bit Meaning Kernel IRQ
|
|
*------------------------------------------
|
|
* 0 PCI slot 0 34
|
|
* 1 NCR810 (builtin) 33
|
|
* 2 TULIP (builtin) 32
|
|
* 3 mouse 12
|
|
* 4 PCI slot 1 35
|
|
* 5 PCI slot 2 36
|
|
* 6 keyboard 1
|
|
* 7 floppy 6
|
|
* 8 COM2 3
|
|
* 9 parallel port 7
|
|
*10 EISA irq 3 -
|
|
*11 EISA irq 4 -
|
|
*12 EISA irq 5 5
|
|
*13 EISA irq 6 -
|
|
*14 EISA irq 7 -
|
|
*15 COM1 4
|
|
*16 EISA irq 9 9
|
|
*17 EISA irq 10 10
|
|
*18 EISA irq 11 11
|
|
*19 EISA irq 12 -
|
|
*20 EISA irq 13 -
|
|
*21 EISA irq 14 14
|
|
*22 NC 15
|
|
*23 IIC -
|
|
*/
|
|
|
|
static void
|
|
sable_update_irq_hw(unsigned long bit, unsigned long mask)
|
|
{
|
|
int port = 0x537;
|
|
|
|
if (bit >= 16) {
|
|
port = 0x53d;
|
|
mask >>= 16;
|
|
} else if (bit >= 8) {
|
|
port = 0x53b;
|
|
mask >>= 8;
|
|
}
|
|
|
|
outb(mask, port);
|
|
}
|
|
|
|
static void
|
|
sable_ack_irq_hw(unsigned long bit)
|
|
{
|
|
int port, val1, val2;
|
|
|
|
if (bit >= 16) {
|
|
port = 0x53c;
|
|
val1 = 0xE0 | (bit - 16);
|
|
val2 = 0xE0 | 4;
|
|
} else if (bit >= 8) {
|
|
port = 0x53a;
|
|
val1 = 0xE0 | (bit - 8);
|
|
val2 = 0xE0 | 3;
|
|
} else {
|
|
port = 0x536;
|
|
val1 = 0xE0 | (bit - 0);
|
|
val2 = 0xE0 | 1;
|
|
}
|
|
|
|
outb(val1, port); /* ack the slave */
|
|
outb(val2, 0x534); /* ack the master */
|
|
}
|
|
|
|
static irq_swizzle_t sable_irq_swizzle = {
|
|
{
|
|
-1, 6, -1, 8, 15, 12, 7, 9, /* pseudo PIC 0-7 */
|
|
-1, 16, 17, 18, 3, -1, 21, 22, /* pseudo PIC 8-15 */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* pseudo EISA 0-7 */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* pseudo EISA 8-15 */
|
|
2, 1, 0, 4, 5, -1, -1, -1, /* pseudo PCI */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* */
|
|
-1, -1, -1, -1, -1, -1, -1, -1 /* */
|
|
},
|
|
{
|
|
34, 33, 32, 12, 35, 36, 1, 6, /* mask 0-7 */
|
|
3, 7, -1, -1, 5, -1, -1, 4, /* mask 8-15 */
|
|
9, 10, 11, -1, -1, 14, 15, -1, /* mask 16-23 */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* */
|
|
-1, -1, -1, -1, -1, -1, -1, -1 /* */
|
|
},
|
|
-1,
|
|
sable_update_irq_hw,
|
|
sable_ack_irq_hw
|
|
};
|
|
|
|
static void __init
|
|
sable_init_irq(void)
|
|
{
|
|
outb(-1, 0x537); /* slave 0 */
|
|
outb(-1, 0x53b); /* slave 1 */
|
|
outb(-1, 0x53d); /* slave 2 */
|
|
outb(0x44, 0x535); /* enable cascades in master */
|
|
|
|
sable_lynx_irq_swizzle = &sable_irq_swizzle;
|
|
sable_lynx_init_irq(40);
|
|
}
|
|
|
|
/*
|
|
* PCI Fixup configuration for ALPHA SABLE (2100).
|
|
*
|
|
* The device to slot mapping looks like:
|
|
*
|
|
* Slot Device
|
|
* 0 TULIP
|
|
* 1 SCSI
|
|
* 2 PCI-EISA bridge
|
|
* 3 none
|
|
* 4 none
|
|
* 5 none
|
|
* 6 PCI on board slot 0
|
|
* 7 PCI on board slot 1
|
|
* 8 PCI on board slot 2
|
|
*
|
|
*
|
|
* This two layered interrupt approach means that we allocate IRQ 16 and
|
|
* above for PCI interrupts. The IRQ relates to which bit the interrupt
|
|
* comes in on. This makes interrupt processing much easier.
|
|
*/
|
|
/*
|
|
* NOTE: the IRQ assignments below are arbitrary, but need to be consistent
|
|
* with the values in the irq swizzling tables above.
|
|
*/
|
|
|
|
static int __init
|
|
sable_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
static char irq_tab[9][5] __initdata = {
|
|
/*INT INTA INTB INTC INTD */
|
|
{ 32+0, 32+0, 32+0, 32+0, 32+0}, /* IdSel 0, TULIP */
|
|
{ 32+1, 32+1, 32+1, 32+1, 32+1}, /* IdSel 1, SCSI */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 2, SIO */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 3, none */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 4, none */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 5, none */
|
|
{ 32+2, 32+2, 32+2, 32+2, 32+2}, /* IdSel 6, slot 0 */
|
|
{ 32+3, 32+3, 32+3, 32+3, 32+3}, /* IdSel 7, slot 1 */
|
|
{ 32+4, 32+4, 32+4, 32+4, 32+4} /* IdSel 8, slot 2 */
|
|
};
|
|
long min_idsel = 0, max_idsel = 8, irqs_per_slot = 5;
|
|
return COMMON_TABLE_LOOKUP;
|
|
}
|
|
#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) */
|
|
|
|
#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX)
|
|
|
|
/***********************************************************************/
|
|
/* LYNX hardware specifics
|
|
*/
|
|
/*
|
|
* For LYNX, which is also baroque, we manage 64 IRQs, via a custom IC.
|
|
*
|
|
* Bit Meaning Kernel IRQ
|
|
*------------------------------------------
|
|
* 0
|
|
* 1
|
|
* 2
|
|
* 3 mouse 12
|
|
* 4
|
|
* 5
|
|
* 6 keyboard 1
|
|
* 7 floppy 6
|
|
* 8 COM2 3
|
|
* 9 parallel port 7
|
|
*10 EISA irq 3 -
|
|
*11 EISA irq 4 -
|
|
*12 EISA irq 5 5
|
|
*13 EISA irq 6 -
|
|
*14 EISA irq 7 -
|
|
*15 COM1 4
|
|
*16 EISA irq 9 9
|
|
*17 EISA irq 10 10
|
|
*18 EISA irq 11 11
|
|
*19 EISA irq 12 -
|
|
*20
|
|
*21 EISA irq 14 14
|
|
*22 EISA irq 15 15
|
|
*23 IIC -
|
|
*24 VGA (builtin) -
|
|
*25
|
|
*26
|
|
*27
|
|
*28 NCR810 (builtin) 28
|
|
*29
|
|
*30
|
|
*31
|
|
*32 PCI 0 slot 4 A primary bus 32
|
|
*33 PCI 0 slot 4 B primary bus 33
|
|
*34 PCI 0 slot 4 C primary bus 34
|
|
*35 PCI 0 slot 4 D primary bus
|
|
*36 PCI 0 slot 5 A primary bus
|
|
*37 PCI 0 slot 5 B primary bus
|
|
*38 PCI 0 slot 5 C primary bus
|
|
*39 PCI 0 slot 5 D primary bus
|
|
*40 PCI 0 slot 6 A primary bus
|
|
*41 PCI 0 slot 6 B primary bus
|
|
*42 PCI 0 slot 6 C primary bus
|
|
*43 PCI 0 slot 6 D primary bus
|
|
*44 PCI 0 slot 7 A primary bus
|
|
*45 PCI 0 slot 7 B primary bus
|
|
*46 PCI 0 slot 7 C primary bus
|
|
*47 PCI 0 slot 7 D primary bus
|
|
*48 PCI 0 slot 0 A secondary bus
|
|
*49 PCI 0 slot 0 B secondary bus
|
|
*50 PCI 0 slot 0 C secondary bus
|
|
*51 PCI 0 slot 0 D secondary bus
|
|
*52 PCI 0 slot 1 A secondary bus
|
|
*53 PCI 0 slot 1 B secondary bus
|
|
*54 PCI 0 slot 1 C secondary bus
|
|
*55 PCI 0 slot 1 D secondary bus
|
|
*56 PCI 0 slot 2 A secondary bus
|
|
*57 PCI 0 slot 2 B secondary bus
|
|
*58 PCI 0 slot 2 C secondary bus
|
|
*59 PCI 0 slot 2 D secondary bus
|
|
*60 PCI 0 slot 3 A secondary bus
|
|
*61 PCI 0 slot 3 B secondary bus
|
|
*62 PCI 0 slot 3 C secondary bus
|
|
*63 PCI 0 slot 3 D secondary bus
|
|
*/
|
|
|
|
static void
|
|
lynx_update_irq_hw(unsigned long bit, unsigned long mask)
|
|
{
|
|
/*
|
|
* Write the AIR register on the T3/T4 with the
|
|
* address of the IC mask register (offset 0x40)
|
|
*/
|
|
*(vulp)T2_AIR = 0x40;
|
|
mb();
|
|
*(vulp)T2_AIR; /* re-read to force write */
|
|
mb();
|
|
*(vulp)T2_DIR = mask;
|
|
mb();
|
|
mb();
|
|
}
|
|
|
|
static void
|
|
lynx_ack_irq_hw(unsigned long bit)
|
|
{
|
|
*(vulp)T2_VAR = (u_long) bit;
|
|
mb();
|
|
mb();
|
|
}
|
|
|
|
static irq_swizzle_t lynx_irq_swizzle = {
|
|
{ /* irq_to_mask */
|
|
-1, 6, -1, 8, 15, 12, 7, 9, /* pseudo PIC 0-7 */
|
|
-1, 16, 17, 18, 3, -1, 21, 22, /* pseudo PIC 8-15 */
|
|
-1, -1, -1, -1, -1, -1, -1, -1, /* pseudo */
|
|
-1, -1, -1, -1, 28, -1, -1, -1, /* pseudo */
|
|
32, 33, 34, 35, 36, 37, 38, 39, /* mask 32-39 */
|
|
40, 41, 42, 43, 44, 45, 46, 47, /* mask 40-47 */
|
|
48, 49, 50, 51, 52, 53, 54, 55, /* mask 48-55 */
|
|
56, 57, 58, 59, 60, 61, 62, 63 /* mask 56-63 */
|
|
},
|
|
{ /* mask_to_irq */
|
|
-1, -1, -1, 12, -1, -1, 1, 6, /* mask 0-7 */
|
|
3, 7, -1, -1, 5, -1, -1, 4, /* mask 8-15 */
|
|
9, 10, 11, -1, -1, 14, 15, -1, /* mask 16-23 */
|
|
-1, -1, -1, -1, 28, -1, -1, -1, /* mask 24-31 */
|
|
32, 33, 34, 35, 36, 37, 38, 39, /* mask 32-39 */
|
|
40, 41, 42, 43, 44, 45, 46, 47, /* mask 40-47 */
|
|
48, 49, 50, 51, 52, 53, 54, 55, /* mask 48-55 */
|
|
56, 57, 58, 59, 60, 61, 62, 63 /* mask 56-63 */
|
|
},
|
|
-1,
|
|
lynx_update_irq_hw,
|
|
lynx_ack_irq_hw
|
|
};
|
|
|
|
static void __init
|
|
lynx_init_irq(void)
|
|
{
|
|
sable_lynx_irq_swizzle = &lynx_irq_swizzle;
|
|
sable_lynx_init_irq(64);
|
|
}
|
|
|
|
/*
|
|
* PCI Fixup configuration for ALPHA LYNX (2100A)
|
|
*
|
|
* The device to slot mapping looks like:
|
|
*
|
|
* Slot Device
|
|
* 0 none
|
|
* 1 none
|
|
* 2 PCI-EISA bridge
|
|
* 3 PCI-PCI bridge
|
|
* 4 NCR 810 (Demi-Lynx only)
|
|
* 5 none
|
|
* 6 PCI on board slot 4
|
|
* 7 PCI on board slot 5
|
|
* 8 PCI on board slot 6
|
|
* 9 PCI on board slot 7
|
|
*
|
|
* And behind the PPB we have:
|
|
*
|
|
* 11 PCI on board slot 0
|
|
* 12 PCI on board slot 1
|
|
* 13 PCI on board slot 2
|
|
* 14 PCI on board slot 3
|
|
*/
|
|
/*
|
|
* NOTE: the IRQ assignments below are arbitrary, but need to be consistent
|
|
* with the values in the irq swizzling tables above.
|
|
*/
|
|
|
|
static int __init
|
|
lynx_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
static char irq_tab[19][5] __initdata = {
|
|
/*INT INTA INTB INTC INTD */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 13, PCEB */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 14, PPB */
|
|
{ 28, 28, 28, 28, 28}, /* IdSel 15, NCR demi */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 16, none */
|
|
{ 32, 32, 33, 34, 35}, /* IdSel 17, slot 4 */
|
|
{ 36, 36, 37, 38, 39}, /* IdSel 18, slot 5 */
|
|
{ 40, 40, 41, 42, 43}, /* IdSel 19, slot 6 */
|
|
{ 44, 44, 45, 46, 47}, /* IdSel 20, slot 7 */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 22, none */
|
|
/* The following are actually behind the PPB. */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 16 none */
|
|
{ 28, 28, 28, 28, 28}, /* IdSel 17 NCR lynx */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 18 none */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 19 none */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 20 none */
|
|
{ -1, -1, -1, -1, -1}, /* IdSel 21 none */
|
|
{ 48, 48, 49, 50, 51}, /* IdSel 22 slot 0 */
|
|
{ 52, 52, 53, 54, 55}, /* IdSel 23 slot 1 */
|
|
{ 56, 56, 57, 58, 59}, /* IdSel 24 slot 2 */
|
|
{ 60, 60, 61, 62, 63} /* IdSel 25 slot 3 */
|
|
};
|
|
const long min_idsel = 2, max_idsel = 20, irqs_per_slot = 5;
|
|
return COMMON_TABLE_LOOKUP;
|
|
}
|
|
|
|
static u8 __init
|
|
lynx_swizzle(struct pci_dev *dev, u8 *pinp)
|
|
{
|
|
int slot, pin = *pinp;
|
|
|
|
if (dev->bus->number == 0) {
|
|
slot = PCI_SLOT(dev->devfn);
|
|
}
|
|
/* Check for the built-in bridge */
|
|
else if (PCI_SLOT(dev->bus->self->devfn) == 3) {
|
|
slot = PCI_SLOT(dev->devfn) + 11;
|
|
}
|
|
else
|
|
{
|
|
/* Must be a card-based bridge. */
|
|
do {
|
|
if (PCI_SLOT(dev->bus->self->devfn) == 3) {
|
|
slot = PCI_SLOT(dev->devfn) + 11;
|
|
break;
|
|
}
|
|
pin = pci_swizzle_interrupt_pin(dev, pin);
|
|
|
|
/* Move up the chain of bridges. */
|
|
dev = dev->bus->self;
|
|
/* Slot of the next bridge. */
|
|
slot = PCI_SLOT(dev->devfn);
|
|
} while (dev->bus->self);
|
|
}
|
|
*pinp = pin;
|
|
return slot;
|
|
}
|
|
|
|
#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) */
|
|
|
|
/***********************************************************************/
|
|
/* GENERIC irq routines */
|
|
|
|
static inline void
|
|
sable_lynx_enable_irq(unsigned int irq)
|
|
{
|
|
unsigned long bit, mask;
|
|
|
|
bit = sable_lynx_irq_swizzle->irq_to_mask[irq];
|
|
spin_lock(&sable_lynx_irq_lock);
|
|
mask = sable_lynx_irq_swizzle->shadow_mask &= ~(1UL << bit);
|
|
sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
|
|
spin_unlock(&sable_lynx_irq_lock);
|
|
#if 0
|
|
printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n",
|
|
__func__, mask, bit, irq);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
sable_lynx_disable_irq(unsigned int irq)
|
|
{
|
|
unsigned long bit, mask;
|
|
|
|
bit = sable_lynx_irq_swizzle->irq_to_mask[irq];
|
|
spin_lock(&sable_lynx_irq_lock);
|
|
mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit;
|
|
sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
|
|
spin_unlock(&sable_lynx_irq_lock);
|
|
#if 0
|
|
printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n",
|
|
__func__, mask, bit, irq);
|
|
#endif
|
|
}
|
|
|
|
static unsigned int
|
|
sable_lynx_startup_irq(unsigned int irq)
|
|
{
|
|
sable_lynx_enable_irq(irq);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
sable_lynx_end_irq(unsigned int irq)
|
|
{
|
|
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
|
|
sable_lynx_enable_irq(irq);
|
|
}
|
|
|
|
static void
|
|
sable_lynx_mask_and_ack_irq(unsigned int irq)
|
|
{
|
|
unsigned long bit, mask;
|
|
|
|
bit = sable_lynx_irq_swizzle->irq_to_mask[irq];
|
|
spin_lock(&sable_lynx_irq_lock);
|
|
mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit;
|
|
sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
|
|
sable_lynx_irq_swizzle->ack_irq_hw(bit);
|
|
spin_unlock(&sable_lynx_irq_lock);
|
|
}
|
|
|
|
static struct irq_chip sable_lynx_irq_type = {
|
|
.name = "SABLE/LYNX",
|
|
.startup = sable_lynx_startup_irq,
|
|
.shutdown = sable_lynx_disable_irq,
|
|
.enable = sable_lynx_enable_irq,
|
|
.disable = sable_lynx_disable_irq,
|
|
.ack = sable_lynx_mask_and_ack_irq,
|
|
.end = sable_lynx_end_irq,
|
|
};
|
|
|
|
static void
|
|
sable_lynx_srm_device_interrupt(unsigned long vector)
|
|
{
|
|
/* Note that the vector reported by the SRM PALcode corresponds
|
|
to the interrupt mask bits, but we have to manage via the
|
|
so-called legacy IRQs for many common devices. */
|
|
|
|
int bit, irq;
|
|
|
|
bit = (vector - 0x800) >> 4;
|
|
irq = sable_lynx_irq_swizzle->mask_to_irq[bit];
|
|
#if 0
|
|
printk("%s: vector 0x%lx bit 0x%x irq 0x%x\n",
|
|
__func__, vector, bit, irq);
|
|
#endif
|
|
handle_irq(irq);
|
|
}
|
|
|
|
static void __init
|
|
sable_lynx_init_irq(int nr_of_irqs)
|
|
{
|
|
long i;
|
|
|
|
for (i = 0; i < nr_of_irqs; ++i) {
|
|
irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL;
|
|
irq_desc[i].chip = &sable_lynx_irq_type;
|
|
}
|
|
|
|
common_init_isa_dma();
|
|
}
|
|
|
|
static void __init
|
|
sable_lynx_init_pci(void)
|
|
{
|
|
common_init_pci();
|
|
}
|
|
|
|
/*****************************************************************/
|
|
/*
|
|
* The System Vectors
|
|
*
|
|
* In order that T2_HAE_ADDRESS should be a constant, we play
|
|
* these games with GAMMA_BIAS.
|
|
*/
|
|
|
|
#if defined(CONFIG_ALPHA_GENERIC) || \
|
|
(defined(CONFIG_ALPHA_SABLE) && !defined(CONFIG_ALPHA_GAMMA))
|
|
#undef GAMMA_BIAS
|
|
#define GAMMA_BIAS 0
|
|
struct alpha_machine_vector sable_mv __initmv = {
|
|
.vector_name = "Sable",
|
|
DO_EV4_MMU,
|
|
DO_DEFAULT_RTC,
|
|
DO_T2_IO,
|
|
.machine_check = t2_machine_check,
|
|
.max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
|
|
.min_io_address = EISA_DEFAULT_IO_BASE,
|
|
.min_mem_address = T2_DEFAULT_MEM_BASE,
|
|
|
|
.nr_irqs = 40,
|
|
.device_interrupt = sable_lynx_srm_device_interrupt,
|
|
|
|
.init_arch = t2_init_arch,
|
|
.init_irq = sable_init_irq,
|
|
.init_rtc = common_init_rtc,
|
|
.init_pci = sable_lynx_init_pci,
|
|
.kill_arch = t2_kill_arch,
|
|
.pci_map_irq = sable_map_irq,
|
|
.pci_swizzle = common_swizzle,
|
|
|
|
.sys = { .t2 = {
|
|
.gamma_bias = 0
|
|
} }
|
|
};
|
|
ALIAS_MV(sable)
|
|
#endif /* GENERIC || (SABLE && !GAMMA) */
|
|
|
|
#if defined(CONFIG_ALPHA_GENERIC) || \
|
|
(defined(CONFIG_ALPHA_SABLE) && defined(CONFIG_ALPHA_GAMMA))
|
|
#undef GAMMA_BIAS
|
|
#define GAMMA_BIAS _GAMMA_BIAS
|
|
struct alpha_machine_vector sable_gamma_mv __initmv = {
|
|
.vector_name = "Sable-Gamma",
|
|
DO_EV5_MMU,
|
|
DO_DEFAULT_RTC,
|
|
DO_T2_IO,
|
|
.machine_check = t2_machine_check,
|
|
.max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
|
|
.min_io_address = EISA_DEFAULT_IO_BASE,
|
|
.min_mem_address = T2_DEFAULT_MEM_BASE,
|
|
|
|
.nr_irqs = 40,
|
|
.device_interrupt = sable_lynx_srm_device_interrupt,
|
|
|
|
.init_arch = t2_init_arch,
|
|
.init_irq = sable_init_irq,
|
|
.init_rtc = common_init_rtc,
|
|
.init_pci = sable_lynx_init_pci,
|
|
.kill_arch = t2_kill_arch,
|
|
.pci_map_irq = sable_map_irq,
|
|
.pci_swizzle = common_swizzle,
|
|
|
|
.sys = { .t2 = {
|
|
.gamma_bias = _GAMMA_BIAS
|
|
} }
|
|
};
|
|
ALIAS_MV(sable_gamma)
|
|
#endif /* GENERIC || (SABLE && GAMMA) */
|
|
|
|
#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX)
|
|
#undef GAMMA_BIAS
|
|
#define GAMMA_BIAS _GAMMA_BIAS
|
|
struct alpha_machine_vector lynx_mv __initmv = {
|
|
.vector_name = "Lynx",
|
|
DO_EV4_MMU,
|
|
DO_DEFAULT_RTC,
|
|
DO_T2_IO,
|
|
.machine_check = t2_machine_check,
|
|
.max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
|
|
.min_io_address = EISA_DEFAULT_IO_BASE,
|
|
.min_mem_address = T2_DEFAULT_MEM_BASE,
|
|
|
|
.nr_irqs = 64,
|
|
.device_interrupt = sable_lynx_srm_device_interrupt,
|
|
|
|
.init_arch = t2_init_arch,
|
|
.init_irq = lynx_init_irq,
|
|
.init_rtc = common_init_rtc,
|
|
.init_pci = sable_lynx_init_pci,
|
|
.kill_arch = t2_kill_arch,
|
|
.pci_map_irq = lynx_map_irq,
|
|
.pci_swizzle = lynx_swizzle,
|
|
|
|
.sys = { .t2 = {
|
|
.gamma_bias = _GAMMA_BIAS
|
|
} }
|
|
};
|
|
ALIAS_MV(lynx)
|
|
#endif /* GENERIC || LYNX */
|