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