1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * arch/arm/mach-footbridge/include/mach/irqs.h
4  *
5  * Copyright (C) 1998 Russell King
6  * Copyright (C) 1998 Phil Blundell
7  *
8  * Changelog:
9  *  20-Jan-1998	RMK	Started merge of EBSA286, CATS and NetWinder
10  *  01-Feb-1999	PJB	ISA IRQs start at 0 not 16
11  */
12 #include <asm/mach-types.h>
13 
14 #define NR_IRQS			36
15 #define NR_DC21285_IRQS		16
16 
17 #define _ISA_IRQ(x)		(0 + (x))
18 #define _ISA_INR(x)		((x) - 0)
19 #define _DC21285_IRQ(x)		(16 + (x))
20 #define _DC21285_INR(x)		((x) - 16)
21 
22 /*
23  * This is a list of all interrupts that the 21285
24  * can generate and we handle.
25  */
26 #define IRQ_CONRX		_DC21285_IRQ(0)
27 #define IRQ_CONTX		_DC21285_IRQ(1)
28 #define IRQ_TIMER1		_DC21285_IRQ(2)
29 #define IRQ_TIMER2		_DC21285_IRQ(3)
30 #define IRQ_TIMER3		_DC21285_IRQ(4)
31 #define IRQ_IN0			_DC21285_IRQ(5)
32 #define IRQ_IN1			_DC21285_IRQ(6)
33 #define IRQ_IN2			_DC21285_IRQ(7)
34 #define IRQ_IN3			_DC21285_IRQ(8)
35 #define IRQ_DOORBELLHOST	_DC21285_IRQ(9)
36 #define IRQ_DMA1		_DC21285_IRQ(10)
37 #define IRQ_DMA2		_DC21285_IRQ(11)
38 #define IRQ_PCI			_DC21285_IRQ(12)
39 #define IRQ_SDRAMPARITY		_DC21285_IRQ(13)
40 #define IRQ_I2OINPOST		_DC21285_IRQ(14)
41 #define IRQ_PCI_ABORT		_DC21285_IRQ(15)
42 #define IRQ_PCI_SERR		_DC21285_IRQ(16)
43 #define IRQ_DISCARD_TIMER	_DC21285_IRQ(17)
44 #define IRQ_PCI_DPERR		_DC21285_IRQ(18)
45 #define IRQ_PCI_PERR		_DC21285_IRQ(19)
46 
47 #define IRQ_ISA_TIMER		_ISA_IRQ(0)
48 #define IRQ_ISA_KEYBOARD	_ISA_IRQ(1)
49 #define IRQ_ISA_CASCADE		_ISA_IRQ(2)
50 #define IRQ_ISA_UART2		_ISA_IRQ(3)
51 #define IRQ_ISA_UART		_ISA_IRQ(4)
52 #define IRQ_ISA_FLOPPY		_ISA_IRQ(6)
53 #define IRQ_ISA_PRINTER		_ISA_IRQ(7)
54 #define IRQ_ISA_RTC_ALARM	_ISA_IRQ(8)
55 #define IRQ_ISA_2		_ISA_IRQ(9)
56 #define IRQ_ISA_PS2MOUSE	_ISA_IRQ(12)
57 #define IRQ_ISA_HARDDISK1	_ISA_IRQ(14)
58 #define IRQ_ISA_HARDDISK2	_ISA_IRQ(15)
59 
60 #define IRQ_MASK_UART_RX	(1 << 2)
61 #define IRQ_MASK_UART_TX	(1 << 3)
62 #define IRQ_MASK_TIMER1		(1 << 4)
63 #define IRQ_MASK_TIMER2		(1 << 5)
64 #define IRQ_MASK_TIMER3		(1 << 6)
65 #define IRQ_MASK_IN0		(1 << 8)
66 #define IRQ_MASK_IN1		(1 << 9)
67 #define IRQ_MASK_IN2		(1 << 10)
68 #define IRQ_MASK_IN3		(1 << 11)
69 #define IRQ_MASK_DOORBELLHOST	(1 << 15)
70 #define IRQ_MASK_DMA1		(1 << 16)
71 #define IRQ_MASK_DMA2		(1 << 17)
72 #define IRQ_MASK_PCI		(1 << 18)
73 #define IRQ_MASK_SDRAMPARITY	(1 << 24)
74 #define IRQ_MASK_I2OINPOST	(1 << 25)
75 #define IRQ_MASK_PCI_ABORT	((1 << 29) | (1 << 30))
76 #define IRQ_MASK_PCI_SERR	(1 << 23)
77 #define IRQ_MASK_DISCARD_TIMER	(1 << 27)
78 #define IRQ_MASK_PCI_DPERR	(1 << 28)
79 #define IRQ_MASK_PCI_PERR	(1 << 31)
80 
81 /*
82  * Netwinder interrupt allocations
83  */
84 #define IRQ_NETWINDER_ETHER10	IRQ_IN0
85 #define IRQ_NETWINDER_ETHER100	IRQ_IN1
86 #define IRQ_NETWINDER_VIDCOMP	IRQ_IN2
87 #define IRQ_NETWINDER_PS2MOUSE	_ISA_IRQ(5)
88 #define IRQ_NETWINDER_IR	_ISA_IRQ(6)
89 #define IRQ_NETWINDER_BUTTON	_ISA_IRQ(10)
90 #define IRQ_NETWINDER_VGA	_ISA_IRQ(11)
91 #define IRQ_NETWINDER_SOUND	_ISA_IRQ(12)
92 
93 #define I8042_KBD_IRQ	IRQ_ISA_KEYBOARD
94 #define I8042_AUX_IRQ	(machine_is_netwinder() ? IRQ_NETWINDER_PS2MOUSE : IRQ_ISA_PS2MOUSE)
95 #define IRQ_FLOPPYDISK	IRQ_ISA_FLOPPY
96 
97 #define irq_canonicalize(_i)	(((_i) == IRQ_ISA_CASCADE) ? IRQ_ISA_2 : _i)
98