1// SPDX-License-Identifier: GPL-2.0
2/*
3 *	linux/arch/alpha/kernel/sys_sable.c
4 *
5 *	Copyright (C) 1995 David A Rusling
6 *	Copyright (C) 1996 Jay A Estabrook
7 *	Copyright (C) 1998, 1999 Richard Henderson
8 *
9 * Code supporting the Sable, Sable-Gamma, and Lynx systems.
10 */
11
12#include <linux/kernel.h>
13#include <linux/types.h>
14#include <linux/mm.h>
15#include <linux/sched.h>
16#include <linux/pci.h>
17#include <linux/init.h>
18
19#include <asm/ptrace.h>
20#include <asm/dma.h>
21#include <asm/irq.h>
22#include <asm/mmu_context.h>
23#include <asm/io.h>
24#include <asm/core_t2.h>
25#include <asm/tlbflush.h>
26
27#include "proto.h"
28#include "irq_impl.h"
29#include "pci_impl.h"
30#include "machvec_impl.h"
31
32DEFINE_SPINLOCK(sable_lynx_irq_lock);
33
34typedef struct irq_swizzle_struct
35{
36	char irq_to_mask[64];
37	char mask_to_irq[64];
38
39	/* Note mask bit is true for DISABLED irqs.  */
40	unsigned long shadow_mask;
41
42	void (*update_irq_hw)(unsigned long bit, unsigned long mask);
43	void (*ack_irq_hw)(unsigned long bit);
44
45} irq_swizzle_t;
46
47static irq_swizzle_t *sable_lynx_irq_swizzle;
48
49static void sable_lynx_init_irq(int nr_of_irqs);
50
51#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE)
52
53/***********************************************************************/
54/*
55 *   For SABLE, which is really baroque, we manage 40 IRQ's, but the
56 *   hardware really only supports 24, not via normal ISA PIC,
57 *   but cascaded custom 8259's, etc.
58 *	 0-7  (char at 536)
59 *	 8-15 (char at 53a)
60 *	16-23 (char at 53c)
61 *
62 * Summary Registers (536/53a/53c):
63 *
64 * Bit      Meaning               Kernel IRQ
65 *------------------------------------------
66 * 0        PCI slot 0			34
67 * 1        NCR810 (builtin)		33
68 * 2        TULIP (builtin)		32
69 * 3        mouse			12
70 * 4        PCI slot 1			35
71 * 5        PCI slot 2			36
72 * 6        keyboard			1
73 * 7        floppy			6
74 * 8        COM2			3
75 * 9        parallel port		7
76 *10        EISA irq 3			-
77 *11        EISA irq 4			-
78 *12        EISA irq 5			5
79 *13        EISA irq 6			-
80 *14        EISA irq 7			-
81 *15        COM1			4
82 *16        EISA irq 9			9
83 *17        EISA irq 10			10
84 *18        EISA irq 11			11
85 *19        EISA irq 12			-
86 *20        EISA irq 13			-
87 *21        EISA irq 14			14
88 *22        NC				15
89 *23        IIC				-
90 */
91
92static void
93sable_update_irq_hw(unsigned long bit, unsigned long mask)
94{
95	int port = 0x537;
96
97	if (bit >= 16) {
98		port = 0x53d;
99		mask >>= 16;
100	} else if (bit >= 8) {
101		port = 0x53b;
102		mask >>= 8;
103	}
104
105	outb(mask, port);
106}
107
108static void
109sable_ack_irq_hw(unsigned long bit)
110{
111	int port, val1, val2;
112
113	if (bit >= 16) {
114		port = 0x53c;
115		val1 = 0xE0 | (bit - 16);
116		val2 = 0xE0 | 4;
117	} else if (bit >= 8) {
118		port = 0x53a;
119		val1 = 0xE0 | (bit - 8);
120		val2 = 0xE0 | 3;
121	} else {
122		port = 0x536;
123		val1 = 0xE0 | (bit - 0);
124		val2 = 0xE0 | 1;
125	}
126
127	outb(val1, port);	/* ack the slave */
128	outb(val2, 0x534);	/* ack the master */
129}
130
131static irq_swizzle_t sable_irq_swizzle = {
132	{
133		-1,  6, -1,  8, 15, 12,  7,  9,	/* pseudo PIC  0-7  */
134		-1, 16, 17, 18,  3, -1, 21, 22,	/* pseudo PIC  8-15 */
135		-1, -1, -1, -1, -1, -1, -1, -1,	/* pseudo EISA 0-7  */
136		-1, -1, -1, -1, -1, -1, -1, -1,	/* pseudo EISA 8-15  */
137		 2,  1,  0,  4,  5, -1, -1, -1,	/* pseudo PCI */
138		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
139		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
140		-1, -1, -1, -1, -1, -1, -1, -1 	/*  */
141	},
142	{
143		34, 33, 32, 12, 35, 36,  1,  6,	/* mask 0-7  */
144		 3,  7, -1, -1,  5, -1, -1,  4,	/* mask 8-15  */
145		 9, 10, 11, -1, -1, 14, 15, -1,	/* mask 16-23  */
146		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
147		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
148		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
149		-1, -1, -1, -1, -1, -1, -1, -1,	/*  */
150		-1, -1, -1, -1, -1, -1, -1, -1	/*  */
151	},
152	-1,
153	sable_update_irq_hw,
154	sable_ack_irq_hw
155};
156
157static void __init
158sable_init_irq(void)
159{
160	outb(-1, 0x537);	/* slave 0 */
161	outb(-1, 0x53b);	/* slave 1 */
162	outb(-1, 0x53d);	/* slave 2 */
163	outb(0x44, 0x535);	/* enable cascades in master */
164
165	sable_lynx_irq_swizzle = &sable_irq_swizzle;
166	sable_lynx_init_irq(40);
167}
168
169/*
170 * PCI Fixup configuration for ALPHA SABLE (2100).
171 *
172 * The device to slot mapping looks like:
173 *
174 * Slot     Device
175 *  0       TULIP
176 *  1       SCSI
177 *  2       PCI-EISA bridge
178 *  3       none
179 *  4       none
180 *  5       none
181 *  6       PCI on board slot 0
182 *  7       PCI on board slot 1
183 *  8       PCI on board slot 2
184 *
185 *
186 * This two layered interrupt approach means that we allocate IRQ 16 and
187 * above for PCI interrupts.  The IRQ relates to which bit the interrupt
188 * comes in on.  This makes interrupt processing much easier.
189 */
190/*
191 * NOTE: the IRQ assignments below are arbitrary, but need to be consistent
192 * with the values in the irq swizzling tables above.
193 */
194
195static int
196sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
197{
198	static char irq_tab[9][5] = {
199		/*INT    INTA   INTB   INTC   INTD */
200		{ 32+0,  32+0,  32+0,  32+0,  32+0},  /* IdSel 0,  TULIP  */
201		{ 32+1,  32+1,  32+1,  32+1,  32+1},  /* IdSel 1,  SCSI   */
202		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 2,  SIO   */
203		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 3,  none   */
204		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 4,  none   */
205		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 5,  none   */
206		{ 32+2,  32+2,  32+2,  32+2,  32+2},  /* IdSel 6,  slot 0 */
207		{ 32+3,  32+3,  32+3,  32+3,  32+3},  /* IdSel 7,  slot 1 */
208		{ 32+4,  32+4,  32+4,  32+4,  32+4}   /* IdSel 8,  slot 2 */
209	};
210	long min_idsel = 0, max_idsel = 8, irqs_per_slot = 5;
211	return COMMON_TABLE_LOOKUP;
212}
213#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) */
214
215#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX)
216
217/***********************************************************************/
218/* LYNX hardware specifics
219 */
220/*
221 *   For LYNX, which is also baroque, we manage 64 IRQs, via a custom IC.
222 *
223 * Bit      Meaning               Kernel IRQ
224 *------------------------------------------
225 * 0
226 * 1
227 * 2
228 * 3        mouse			12
229 * 4
230 * 5
231 * 6        keyboard			1
232 * 7        floppy			6
233 * 8        COM2			3
234 * 9        parallel port		7
235 *10        EISA irq 3			-
236 *11        EISA irq 4			-
237 *12        EISA irq 5			5
238 *13        EISA irq 6			-
239 *14        EISA irq 7			-
240 *15        COM1			4
241 *16        EISA irq 9			9
242 *17        EISA irq 10			10
243 *18        EISA irq 11			11
244 *19        EISA irq 12			-
245 *20
246 *21        EISA irq 14			14
247 *22        EISA irq 15			15
248 *23        IIC				-
249 *24        VGA (builtin)               -
250 *25
251 *26
252 *27
253 *28        NCR810 (builtin)		28
254 *29
255 *30
256 *31
257 *32        PCI 0 slot 4 A primary bus  32
258 *33        PCI 0 slot 4 B primary bus  33
259 *34        PCI 0 slot 4 C primary bus  34
260 *35        PCI 0 slot 4 D primary bus
261 *36        PCI 0 slot 5 A primary bus
262 *37        PCI 0 slot 5 B primary bus
263 *38        PCI 0 slot 5 C primary bus
264 *39        PCI 0 slot 5 D primary bus
265 *40        PCI 0 slot 6 A primary bus
266 *41        PCI 0 slot 6 B primary bus
267 *42        PCI 0 slot 6 C primary bus
268 *43        PCI 0 slot 6 D primary bus
269 *44        PCI 0 slot 7 A primary bus
270 *45        PCI 0 slot 7 B primary bus
271 *46        PCI 0 slot 7 C primary bus
272 *47        PCI 0 slot 7 D primary bus
273 *48        PCI 0 slot 0 A secondary bus
274 *49        PCI 0 slot 0 B secondary bus
275 *50        PCI 0 slot 0 C secondary bus
276 *51        PCI 0 slot 0 D secondary bus
277 *52        PCI 0 slot 1 A secondary bus
278 *53        PCI 0 slot 1 B secondary bus
279 *54        PCI 0 slot 1 C secondary bus
280 *55        PCI 0 slot 1 D secondary bus
281 *56        PCI 0 slot 2 A secondary bus
282 *57        PCI 0 slot 2 B secondary bus
283 *58        PCI 0 slot 2 C secondary bus
284 *59        PCI 0 slot 2 D secondary bus
285 *60        PCI 0 slot 3 A secondary bus
286 *61        PCI 0 slot 3 B secondary bus
287 *62        PCI 0 slot 3 C secondary bus
288 *63        PCI 0 slot 3 D secondary bus
289 */
290
291static void
292lynx_update_irq_hw(unsigned long bit, unsigned long mask)
293{
294	/*
295	 * Write the AIR register on the T3/T4 with the
296	 * address of the IC mask register (offset 0x40)
297	 */
298	*(vulp)T2_AIR = 0x40;
299	mb();
300	*(vulp)T2_AIR; /* re-read to force write */
301	mb();
302	*(vulp)T2_DIR = mask;
303	mb();
304	mb();
305}
306
307static void
308lynx_ack_irq_hw(unsigned long bit)
309{
310	*(vulp)T2_VAR = (u_long) bit;
311	mb();
312	mb();
313}
314
315static irq_swizzle_t lynx_irq_swizzle = {
316	{ /* irq_to_mask */
317		-1,  6, -1,  8, 15, 12,  7,  9,	/* pseudo PIC  0-7  */
318		-1, 16, 17, 18,  3, -1, 21, 22,	/* pseudo PIC  8-15 */
319		-1, -1, -1, -1, -1, -1, -1, -1,	/* pseudo */
320		-1, -1, -1, -1, 28, -1, -1, -1,	/* pseudo */
321		32, 33, 34, 35, 36, 37, 38, 39,	/* mask 32-39 */
322		40, 41, 42, 43, 44, 45, 46, 47,	/* mask 40-47 */
323		48, 49, 50, 51, 52, 53, 54, 55,	/* mask 48-55 */
324		56, 57, 58, 59, 60, 61, 62, 63	/* mask 56-63 */
325	},
326	{ /* mask_to_irq */
327		-1, -1, -1, 12, -1, -1,  1,  6,	/* mask 0-7   */
328		 3,  7, -1, -1,  5, -1, -1,  4,	/* mask 8-15  */
329		 9, 10, 11, -1, -1, 14, 15, -1,	/* mask 16-23 */
330		-1, -1, -1, -1, 28, -1, -1, -1,	/* mask 24-31 */
331		32, 33, 34, 35, 36, 37, 38, 39,	/* mask 32-39 */
332		40, 41, 42, 43, 44, 45, 46, 47,	/* mask 40-47 */
333		48, 49, 50, 51, 52, 53, 54, 55,	/* mask 48-55 */
334		56, 57, 58, 59, 60, 61, 62, 63	/* mask 56-63 */
335	},
336	-1,
337	lynx_update_irq_hw,
338	lynx_ack_irq_hw
339};
340
341static void __init
342lynx_init_irq(void)
343{
344	sable_lynx_irq_swizzle = &lynx_irq_swizzle;
345	sable_lynx_init_irq(64);
346}
347
348/*
349 * PCI Fixup configuration for ALPHA LYNX (2100A)
350 *
351 * The device to slot mapping looks like:
352 *
353 * Slot     Device
354 *  0       none
355 *  1       none
356 *  2       PCI-EISA bridge
357 *  3       PCI-PCI bridge
358 *  4       NCR 810 (Demi-Lynx only)
359 *  5       none
360 *  6       PCI on board slot 4
361 *  7       PCI on board slot 5
362 *  8       PCI on board slot 6
363 *  9       PCI on board slot 7
364 *
365 * And behind the PPB we have:
366 *
367 * 11       PCI on board slot 0
368 * 12       PCI on board slot 1
369 * 13       PCI on board slot 2
370 * 14       PCI on board slot 3
371 */
372/*
373 * NOTE: the IRQ assignments below are arbitrary, but need to be consistent
374 * with the values in the irq swizzling tables above.
375 */
376
377static int
378lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
379{
380	static char irq_tab[19][5] = {
381		/*INT    INTA   INTB   INTC   INTD */
382		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 13,  PCEB   */
383		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 14,  PPB    */
384		{   28,    28,    28,    28,    28},  /* IdSel 15,  NCR demi */
385		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 16,  none   */
386		{   32,    32,    33,    34,    35},  /* IdSel 17,  slot 4 */
387		{   36,    36,    37,    38,    39},  /* IdSel 18,  slot 5 */
388		{   40,    40,    41,    42,    43},  /* IdSel 19,  slot 6 */
389		{   44,    44,    45,    46,    47},  /* IdSel 20,  slot 7 */
390		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 22,  none   */
391		/* The following are actually behind the PPB. */
392		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 16   none */
393		{   28,    28,    28,    28,    28},  /* IdSel 17   NCR lynx */
394		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 18   none */
395		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 19   none */
396		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 20   none */
397		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 21   none */
398		{   48,    48,    49,    50,    51},  /* IdSel 22   slot 0 */
399		{   52,    52,    53,    54,    55},  /* IdSel 23   slot 1 */
400		{   56,    56,    57,    58,    59},  /* IdSel 24   slot 2 */
401		{   60,    60,    61,    62,    63}   /* IdSel 25   slot 3 */
402	};
403	const long min_idsel = 2, max_idsel = 20, irqs_per_slot = 5;
404	return COMMON_TABLE_LOOKUP;
405}
406
407static u8
408lynx_swizzle(struct pci_dev *dev, u8 *pinp)
409{
410	int slot, pin = *pinp;
411
412	if (dev->bus->number == 0) {
413		slot = PCI_SLOT(dev->devfn);
414	}
415	/* Check for the built-in bridge */
416	else if (PCI_SLOT(dev->bus->self->devfn) == 3) {
417		slot = PCI_SLOT(dev->devfn) + 11;
418	}
419	else
420	{
421		/* Must be a card-based bridge.  */
422		do {
423			if (PCI_SLOT(dev->bus->self->devfn) == 3) {
424				slot = PCI_SLOT(dev->devfn) + 11;
425				break;
426			}
427			pin = pci_swizzle_interrupt_pin(dev, pin);
428
429			/* Move up the chain of bridges.  */
430			dev = dev->bus->self;
431			/* Slot of the next bridge.  */
432			slot = PCI_SLOT(dev->devfn);
433		} while (dev->bus->self);
434	}
435	*pinp = pin;
436	return slot;
437}
438
439#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) */
440
441/***********************************************************************/
442/* GENERIC irq routines */
443
444static inline void
445sable_lynx_enable_irq(struct irq_data *d)
446{
447	unsigned long bit, mask;
448
449	bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq];
450	spin_lock(&sable_lynx_irq_lock);
451	mask = sable_lynx_irq_swizzle->shadow_mask &= ~(1UL << bit);
452	sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
453	spin_unlock(&sable_lynx_irq_lock);
454#if 0
455	printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n",
456	       __func__, mask, bit, irq);
457#endif
458}
459
460static void
461sable_lynx_disable_irq(struct irq_data *d)
462{
463	unsigned long bit, mask;
464
465	bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq];
466	spin_lock(&sable_lynx_irq_lock);
467	mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit;
468	sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
469	spin_unlock(&sable_lynx_irq_lock);
470#if 0
471	printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n",
472	       __func__, mask, bit, irq);
473#endif
474}
475
476static void
477sable_lynx_mask_and_ack_irq(struct irq_data *d)
478{
479	unsigned long bit, mask;
480
481	bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq];
482	spin_lock(&sable_lynx_irq_lock);
483	mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit;
484	sable_lynx_irq_swizzle->update_irq_hw(bit, mask);
485	sable_lynx_irq_swizzle->ack_irq_hw(bit);
486	spin_unlock(&sable_lynx_irq_lock);
487}
488
489static struct irq_chip sable_lynx_irq_type = {
490	.name		= "SABLE/LYNX",
491	.irq_unmask	= sable_lynx_enable_irq,
492	.irq_mask	= sable_lynx_disable_irq,
493	.irq_mask_ack	= sable_lynx_mask_and_ack_irq,
494};
495
496static void
497sable_lynx_srm_device_interrupt(unsigned long vector)
498{
499	/* Note that the vector reported by the SRM PALcode corresponds
500	   to the interrupt mask bits, but we have to manage via the
501	   so-called legacy IRQs for many common devices.  */
502
503	int bit, irq;
504
505	bit = (vector - 0x800) >> 4;
506	irq = sable_lynx_irq_swizzle->mask_to_irq[bit];
507#if 0
508	printk("%s: vector 0x%lx bit 0x%x irq 0x%x\n",
509	       __func__, vector, bit, irq);
510#endif
511	handle_irq(irq);
512}
513
514static void __init
515sable_lynx_init_irq(int nr_of_irqs)
516{
517	long i;
518
519	for (i = 0; i < nr_of_irqs; ++i) {
520		irq_set_chip_and_handler(i, &sable_lynx_irq_type,
521					 handle_level_irq);
522		irq_set_status_flags(i, IRQ_LEVEL);
523	}
524
525	common_init_isa_dma();
526}
527
528static void __init
529sable_lynx_init_pci(void)
530{
531	common_init_pci();
532}
533
534/*****************************************************************/
535/*
536 * The System Vectors
537 *
538 * In order that T2_HAE_ADDRESS should be a constant, we play
539 * these games with GAMMA_BIAS.
540 */
541
542#if defined(CONFIG_ALPHA_GENERIC) || \
543    (defined(CONFIG_ALPHA_SABLE) && !defined(CONFIG_ALPHA_GAMMA))
544#undef GAMMA_BIAS
545#define GAMMA_BIAS 0
546struct alpha_machine_vector sable_mv __initmv = {
547	.vector_name		= "Sable",
548	DO_EV4_MMU,
549	DO_DEFAULT_RTC,
550	DO_T2_IO,
551	.machine_check		= t2_machine_check,
552	.max_isa_dma_address	= ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
553	.min_io_address		= EISA_DEFAULT_IO_BASE,
554	.min_mem_address	= T2_DEFAULT_MEM_BASE,
555
556	.nr_irqs		= 40,
557	.device_interrupt	= sable_lynx_srm_device_interrupt,
558
559	.init_arch		= t2_init_arch,
560	.init_irq		= sable_init_irq,
561	.init_rtc		= common_init_rtc,
562	.init_pci		= sable_lynx_init_pci,
563	.kill_arch		= t2_kill_arch,
564	.pci_map_irq		= sable_map_irq,
565	.pci_swizzle		= common_swizzle,
566
567	.sys = { .t2 = {
568	    .gamma_bias		= 0
569	} }
570};
571ALIAS_MV(sable)
572#endif /* GENERIC || (SABLE && !GAMMA) */
573
574#if defined(CONFIG_ALPHA_GENERIC) || \
575    (defined(CONFIG_ALPHA_SABLE) && defined(CONFIG_ALPHA_GAMMA))
576#undef GAMMA_BIAS
577#define GAMMA_BIAS _GAMMA_BIAS
578struct alpha_machine_vector sable_gamma_mv __initmv = {
579	.vector_name		= "Sable-Gamma",
580	DO_EV5_MMU,
581	DO_DEFAULT_RTC,
582	DO_T2_IO,
583	.machine_check		= t2_machine_check,
584	.max_isa_dma_address	= ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
585	.min_io_address		= EISA_DEFAULT_IO_BASE,
586	.min_mem_address	= T2_DEFAULT_MEM_BASE,
587
588	.nr_irqs		= 40,
589	.device_interrupt	= sable_lynx_srm_device_interrupt,
590
591	.init_arch		= t2_init_arch,
592	.init_irq		= sable_init_irq,
593	.init_rtc		= common_init_rtc,
594	.init_pci		= sable_lynx_init_pci,
595	.kill_arch		= t2_kill_arch,
596	.pci_map_irq		= sable_map_irq,
597	.pci_swizzle		= common_swizzle,
598
599	.sys = { .t2 = {
600	    .gamma_bias		= _GAMMA_BIAS
601	} }
602};
603ALIAS_MV(sable_gamma)
604#endif /* GENERIC || (SABLE && GAMMA) */
605
606#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX)
607#undef GAMMA_BIAS
608#define GAMMA_BIAS _GAMMA_BIAS
609struct alpha_machine_vector lynx_mv __initmv = {
610	.vector_name		= "Lynx",
611	DO_EV4_MMU,
612	DO_DEFAULT_RTC,
613	DO_T2_IO,
614	.machine_check		= t2_machine_check,
615	.max_isa_dma_address	= ALPHA_SABLE_MAX_ISA_DMA_ADDRESS,
616	.min_io_address		= EISA_DEFAULT_IO_BASE,
617	.min_mem_address	= T2_DEFAULT_MEM_BASE,
618
619	.nr_irqs		= 64,
620	.device_interrupt	= sable_lynx_srm_device_interrupt,
621
622	.init_arch		= t2_init_arch,
623	.init_irq		= lynx_init_irq,
624	.init_rtc		= common_init_rtc,
625	.init_pci		= sable_lynx_init_pci,
626	.kill_arch		= t2_kill_arch,
627	.pci_map_irq		= lynx_map_irq,
628	.pci_swizzle		= lynx_swizzle,
629
630	.sys = { .t2 = {
631	    .gamma_bias		= _GAMMA_BIAS
632	} }
633};
634ALIAS_MV(lynx)
635#endif /* GENERIC || LYNX */
636