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-rw-r--r--arch/sh/boards/se/770x/irq.c108
1 files changed, 74 insertions, 34 deletions
diff --git a/arch/sh/boards/se/770x/irq.c b/arch/sh/boards/se/770x/irq.c
index fcd7cd7fa05f..307ca5da6232 100644
--- a/arch/sh/boards/se/770x/irq.c
+++ b/arch/sh/boards/se/770x/irq.c
@@ -2,56 +2,96 @@
2 * linux/arch/sh/boards/se/770x/irq.c 2 * linux/arch/sh/boards/se/770x/irq.c
3 * 3 *
4 * Copyright (C) 2000 Kazumoto Kojima 4 * Copyright (C) 2000 Kazumoto Kojima
5 * Copyright (C) 2006 Nobuhiro Iwamatsu
5 * 6 *
6 * Hitachi SolutionEngine Support. 7 * Hitachi SolutionEngine Support.
7 * 8 *
8 */ 9 */
9 10
10#include <linux/init.h> 11#include <linux/init.h>
12#include <linux/interrupt.h>
11#include <linux/irq.h> 13#include <linux/irq.h>
12#include <asm/irq.h> 14#include <asm/irq.h>
13#include <asm/io.h> 15#include <asm/io.h>
14#include <asm/se.h> 16#include <asm/se.h>
15 17
18/*
19 * If the problem of make_ipr_irq is solved,
20 * this code will become unnecessary. :-)
21 */
22static void se770x_disable_ipr_irq(unsigned int irq)
23{
24 struct ipr_data *p = get_irq_chip_data(irq);
25
26 ctrl_outw(ctrl_inw(p->addr) & (0xffff ^ (0xf << p->shift)), p->addr);
27}
28
29static void se770x_enable_ipr_irq(unsigned int irq)
30{
31 struct ipr_data *p = get_irq_chip_data(irq);
32
33 ctrl_outw(ctrl_inw(p->addr) | (p->priority << p->shift), p->addr);
34}
35
36static struct irq_chip se770x_irq_chip = {
37 .name = "MS770xSE-FPGA",
38 .mask = se770x_disable_ipr_irq,
39 .unmask = se770x_enable_ipr_irq,
40 .mask_ack = se770x_disable_ipr_irq,
41};
42
43void make_se770x_irq(struct ipr_data *table, unsigned int nr_irqs)
44{
45 int i;
46
47 for (i = 0; i < nr_irqs; i++) {
48 unsigned int irq = table[i].irq;
49 disable_irq_nosync(irq);
50 set_irq_chip_and_handler_name(irq, &se770x_irq_chip,
51 handle_level_irq, "level");
52 set_irq_chip_data(irq, &table[i]);
53 se770x_enable_ipr_irq(irq);
54 }
55}
56
16static struct ipr_data se770x_ipr_map[] = { 57static struct ipr_data se770x_ipr_map[] = {
17#if defined(CONFIG_CPU_SUBTYPE_SH7705) 58#if defined(CONFIG_CPU_SUBTYPE_SH7705)
18 /* This is default value */ 59 /* This is default value */
19 { 0xf-0x2, BCR_ILCRA, 2, 0x2 }, 60 { 0xf-0x2, 0, 8, 0x2 , BCR_ILCRA},
20 { 0xf-0xa, BCR_ILCRA, 1, 0xa }, 61 { 0xf-0xa, 0, 4, 0xa , BCR_ILCRA},
21 { 0xf-0x5, BCR_ILCRB, 0, 0x5 }, 62 { 0xf-0x5, 0, 0, 0x5 , BCR_ILCRB},
22 { 0xf-0x8, BCR_ILCRC, 1, 0x8 }, 63 { 0xf-0x8, 0, 4, 0x8 , BCR_ILCRC},
23 { 0xf-0xc, BCR_ILCRC, 0, 0xc }, 64 { 0xf-0xc, 0, 0, 0xc , BCR_ILCRC},
24 { 0xf-0xe, BCR_ILCRD, 3, 0xe }, 65 { 0xf-0xe, 0, 12, 0xe , BCR_ILCRD},
25 { 0xf-0x3, BCR_ILCRD, 1, 0x3 }, /* LAN */ 66 { 0xf-0x3, 0, 4, 0x3 , BCR_ILCRD}, /* LAN */
26 { 0xf-0xd, BCR_ILCRE, 2, 0xd }, 67 { 0xf-0xd, 0, 8, 0xd , BCR_ILCRE},
27 { 0xf-0x9, BCR_ILCRE, 1, 0x9 }, 68 { 0xf-0x9, 0, 4, 0x9 , BCR_ILCRE},
28 { 0xf-0x1, BCR_ILCRE, 0, 0x1 }, 69 { 0xf-0x1, 0, 0, 0x1 , BCR_ILCRE},
29 { 0xf-0xf, BCR_ILCRF, 3, 0xf }, 70 { 0xf-0xf, 0, 12, 0xf , BCR_ILCRF},
30 { 0xf-0xb, BCR_ILCRF, 1, 0xb }, 71 { 0xf-0xb, 0, 4, 0xb , BCR_ILCRF},
31 { 0xf-0x7, BCR_ILCRG, 3, 0x7 }, 72 { 0xf-0x7, 0, 12, 0x7 , BCR_ILCRG},
32 { 0xf-0x6, BCR_ILCRG, 2, 0x6 }, 73 { 0xf-0x6, 0, 8, 0x6 , BCR_ILCRG},
33 { 0xf-0x4, BCR_ILCRG, 1, 0x4 }, 74 { 0xf-0x4, 0, 4, 0x4 , BCR_ILCRG},
34#else 75#else
35 { 14, BCR_ILCRA, 2, 0x0f-14 }, 76 { 14, 0, 8, 0x0f-14 ,BCR_ILCRA},
36 { 12, BCR_ILCRA, 1, 0x0f-12 }, 77 { 12, 0, 4, 0x0f-12 ,BCR_ILCRA},
37 { 8, BCR_ILCRB, 1, 0x0f- 8 }, 78 { 8, 0, 4, 0x0f- 8 ,BCR_ILCRB},
38 { 6, BCR_ILCRC, 3, 0x0f- 6 }, 79 { 6, 0, 12, 0x0f- 6 ,BCR_ILCRC},
39 { 5, BCR_ILCRC, 2, 0x0f- 5 }, 80 { 5, 0, 8, 0x0f- 5 ,BCR_ILCRC},
40 { 4, BCR_ILCRC, 1, 0x0f- 4 }, 81 { 4, 0, 4, 0x0f- 4 ,BCR_ILCRC},
41 { 3, BCR_ILCRC, 0, 0x0f- 3 }, 82 { 3, 0, 0, 0x0f- 3 ,BCR_ILCRC},
42 { 1, BCR_ILCRD, 3, 0x0f- 1 }, 83 { 1, 0, 12, 0x0f- 1 ,BCR_ILCRD},
43 84 /* ST NIC */
44 { 10, BCR_ILCRD, 1, 0x0f-10 }, /* LAN */ 85 { 10, 0, 4, 0x0f-10 ,BCR_ILCRD}, /* LAN */
45 86 /* MRSHPC IRQs setting */
46 { 0, BCR_ILCRE, 3, 0x0f- 0 }, /* PCIRQ3 */ 87 { 0, 0, 12, 0x0f- 0 ,BCR_ILCRE}, /* PCIRQ3 */
47 { 11, BCR_ILCRE, 2, 0x0f-11 }, /* PCIRQ2 */ 88 { 11, 0, 8, 0x0f-11 ,BCR_ILCRE}, /* PCIRQ2 */
48 { 9, BCR_ILCRE, 1, 0x0f- 9 }, /* PCIRQ1 */ 89 { 9, 0, 4, 0x0f- 9 ,BCR_ILCRE}, /* PCIRQ1 */
49 { 7, BCR_ILCRE, 0, 0x0f- 7 }, /* PCIRQ0 */ 90 { 7, 0, 0, 0x0f- 7 ,BCR_ILCRE}, /* PCIRQ0 */
50
51 /* #2, #13 are allocated for SLOT IRQ #1 and #2 (for now) */ 91 /* #2, #13 are allocated for SLOT IRQ #1 and #2 (for now) */
52 /* NOTE: #2 and #13 are not used on PC */ 92 /* NOTE: #2 and #13 are not used on PC */
53 { 13, BCR_ILCRG, 1, 0x0f-13 }, /* SLOTIRQ2 */ 93 { 13, 0, 4, 0x0f-13 ,BCR_ILCRG}, /* SLOTIRQ2 */
54 { 2, BCR_ILCRG, 0, 0x0f- 2 }, /* SLOTIRQ1 */ 94 { 2, 0, 0, 0x0f- 2 ,BCR_ILCRG}, /* SLOTIRQ1 */
55#endif 95#endif
56}; 96};
57 97
@@ -81,5 +121,5 @@ void __init init_se_IRQ(void)
81 ctrl_outw(0, BCR_ILCRF); 121 ctrl_outw(0, BCR_ILCRF);
82 ctrl_outw(0, BCR_ILCRG); 122 ctrl_outw(0, BCR_ILCRG);
83#endif 123#endif
84 make_ipr_irq(se770x_ipr_map, ARRAY_SIZE(se770x_ipr_map)); 124 make_se770x_irq(se770x_ipr_map, ARRAY_SIZE(se770x_ipr_map));
85} 125}