2 * linux/arch/sh/boards/renesas/rts7751r2d/irq.c
4 * Copyright (C) 2007 Magnus Damm
5 * Copyright (C) 2000 Kazumoto Kojima
7 * Renesas Technology Sales RTS7751R2D Support, R2D-PLUS and R2D-1.
9 * Modified for RTS7751R2D by
10 * Atom Create Engineering Co., Ltd. 2002.
12 #include <linux/init.h>
13 #include <linux/irq.h>
14 #include <linux/interrupt.h>
23 /* board specific interrupt sources (R2D-1 and R2D-PLUS) */
25 RTC_T
, RTC_A
, /* Real Time Clock */
26 AX88796
, /* Ethernet controller (R2D-1 board) */
27 KEY
, /* Key input (R2D-PLUS board) */
29 CF_CD
, CF_IDE
, /* CF Card Detect + CF IDE */
30 SM501
, /* SM501 aka Voyager */
31 PCI_INTD_RTL8139
, /* Ethernet controller */
32 PCI_INTC_PCI1520
, /* Cardbus/PCMCIA bridge */
33 PCI_INTB_RTL8139
, /* Ethernet controller with HUB (R2D-PLUS board) */
34 PCI_INTB_SLOT
, /* PCI Slot 3.3v (R2D-1 board) */
35 PCI_INTA_SLOT
, /* PCI Slot 3.3v */
39 #ifdef CONFIG_RTS7751R2D_1
41 /* Vectors for R2D-1 */
42 static struct intc_vect vectors_r2d_1
[] __initdata
= {
43 INTC_IRQ(EXT
, IRQ_EXT
),
44 INTC_IRQ(RTC_T
, IRQ_RTC_T
), INTC_IRQ(RTC_A
, IRQ_RTC_A
),
45 INTC_IRQ(AX88796
, IRQ_AX88796
), INTC_IRQ(SDCARD
, IRQ_SDCARD
),
46 INTC_IRQ(CF_CD
, IRQ_CF_CD
), INTC_IRQ(CF_IDE
, IRQ_CF_IDE
), /* ng */
47 INTC_IRQ(SM501
, IRQ_VOYAGER
),
48 INTC_IRQ(PCI_INTD_RTL8139
, IRQ_PCI_INTD
),
49 INTC_IRQ(PCI_INTC_PCI1520
, IRQ_PCI_INTC
),
50 INTC_IRQ(PCI_INTB_SLOT
, IRQ_PCI_INTB
),
51 INTC_IRQ(PCI_INTA_SLOT
, IRQ_PCI_INTA
),
55 /* IRLMSK mask register layout for R2D-1 */
56 static struct intc_mask_reg mask_registers_r2d_1
[] __initdata
= {
57 { 0xa4000000, 0, 16, /* IRLMSK */
58 { TP
, PCI_INTA_SLOT
, PCI_INTB_SLOT
,
59 PCI_INTC_PCI1520
, PCI_INTD_RTL8139
,
60 SM501
, CF_IDE
, CF_CD
, SDCARD
, AX88796
,
61 RTC_A
, RTC_T
, 0, 0, 0, EXT
} },
64 /* IRLn to IRQ table for R2D-1 */
65 static unsigned char irl2irq_r2d_1
[R2D_NR_IRL
] __initdata
= {
66 IRQ_PCI_INTD
, IRQ_CF_IDE
, IRQ_CF_CD
, IRQ_PCI_INTC
,
67 IRQ_VOYAGER
, IRQ_AX88796
, IRQ_RTC_A
, IRQ_RTC_T
,
68 IRQ_SDCARD
, IRQ_PCI_INTA
, IRQ_PCI_INTB
, IRQ_EXT
,
72 static DECLARE_INTC_DESC(intc_desc_r2d_1
, "r2d-1", vectors_r2d_1
,
73 NULL
, mask_registers_r2d_1
, NULL
, NULL
);
75 #endif /* CONFIG_RTS7751R2D_1 */
77 #ifdef CONFIG_RTS7751R2D_PLUS
79 /* Vectors for R2D-PLUS */
80 static struct intc_vect vectors_r2d_plus
[] __initdata
= {
81 INTC_IRQ(EXT
, IRQ_EXT
),
82 INTC_IRQ(RTC_T
, IRQ_RTC_T
), INTC_IRQ(RTC_A
, IRQ_RTC_A
),
83 INTC_IRQ(KEY
, IRQ_KEY
), INTC_IRQ(SDCARD
, IRQ_SDCARD
),
84 INTC_IRQ(CF_CD
, IRQ_CF_CD
), INTC_IRQ(CF_IDE
, IRQ_CF_IDE
),
85 INTC_IRQ(SM501
, IRQ_VOYAGER
),
86 INTC_IRQ(PCI_INTD_RTL8139
, IRQ_PCI_INTD
),
87 INTC_IRQ(PCI_INTC_PCI1520
, IRQ_PCI_INTC
),
88 INTC_IRQ(PCI_INTB_RTL8139
, IRQ_PCI_INTB
),
89 INTC_IRQ(PCI_INTA_SLOT
, IRQ_PCI_INTA
),
93 /* IRLMSK mask register layout for R2D-PLUS */
94 static struct intc_mask_reg mask_registers_r2d_plus
[] __initdata
= {
95 { 0xa4000000, 0, 16, /* IRLMSK */
96 { TP
, PCI_INTA_SLOT
, PCI_INTB_RTL8139
,
97 PCI_INTC_PCI1520
, PCI_INTD_RTL8139
,
98 SM501
, CF_IDE
, CF_CD
, SDCARD
, KEY
,
99 RTC_A
, RTC_T
, 0, 0, 0, EXT
} },
102 /* IRLn to IRQ table for R2D-PLUS */
103 static unsigned char irl2irq_r2d_plus
[R2D_NR_IRL
] __initdata
= {
104 IRQ_PCI_INTD
, IRQ_CF_IDE
, IRQ_CF_CD
, IRQ_PCI_INTC
,
105 IRQ_VOYAGER
, IRQ_KEY
, IRQ_RTC_A
, IRQ_RTC_T
,
106 IRQ_SDCARD
, IRQ_PCI_INTA
, IRQ_PCI_INTB
, IRQ_EXT
,
110 static DECLARE_INTC_DESC(intc_desc_r2d_plus
, "r2d-plus", vectors_r2d_plus
,
111 NULL
, mask_registers_r2d_plus
, NULL
, NULL
);
113 #endif /* CONFIG_RTS7751R2D_PLUS */
115 static unsigned char irl2irq
[R2D_NR_IRL
];
117 int rts7751r2d_irq_demux(int irq
)
119 if (irq
>= R2D_NR_IRL
|| !irl2irq
[irq
])
126 * Initialize IRQ setting
128 void __init
init_rts7751r2d_IRQ(void)
132 switch (ctrl_inw(PA_VERREG
) & 0xf0) {
133 #ifdef CONFIG_RTS7751R2D_PLUS
135 printk(KERN_INFO
"Using R2D-PLUS interrupt controller.\n");
136 d
= &intc_desc_r2d_plus
;
137 memcpy(irl2irq
, irl2irq_r2d_plus
, R2D_NR_IRL
);
140 #ifdef CONFIG_RTS7751R2D_1
141 case 0x00: /* according to manual */
142 case 0x30: /* in reality */
143 printk(KERN_INFO
"Using R2D-1 interrupt controller.\n");
144 d
= &intc_desc_r2d_1
;
145 memcpy(irl2irq
, irl2irq_r2d_1
, R2D_NR_IRL
);
149 printk(KERN_INFO
"Unknown R2D interrupt controller 0x%04x\n",
150 ctrl_inw(PA_VERREG
));
154 register_intc_controller(d
);