1 /*
2  * Defines for the MSP interrupt controller.
3  *
4  * Copyright (C) 1999 MIPS Technologies, Inc.  All rights reserved.
5  * Author: Carsten Langgaard, carstenl@mips.com
6  *
7  * ########################################################################
8  *
9  *  This program is free software; you can distribute it and/or modify it
10  *  under the terms of the GNU General Public License (Version 2) as
11  *  published by the Free Software Foundation.
12  *
13  *  This program is distributed in the hope it will be useful, but WITHOUT
14  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16  *  for more details.
17  *
18  *  You should have received a copy of the GNU General Public License along
19  *  with this program; if not, write to the Free Software Foundation, Inc.,
20  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
21  *
22  * ########################################################################
23  */
24 
25 #ifndef _MSP_SLP_INT_H
26 #define _MSP_SLP_INT_H
27 
28 /*
29  * The PMC-Sierra SLP interrupts are arranged in a 3 level cascaded
30  * hierarchical system.  The first level are the direct MIPS interrupts
31  * and are assigned the interrupt range 0-7.  The second level is the SLM
32  * interrupt controller and is assigned the range 8-39.  The third level
33  * comprises the Peripherial block, the PCI block, the PCI MSI block and
34  * the SLP.  The PCI interrupts and the SLP errors are handled by the
35  * relevant subsystems so the core interrupt code needs only concern
36  * itself with the Peripheral block.  These are assigned interrupts in
37  * the range 40-71.
38  */
39 
40 /*
41  * IRQs directly connected to CPU
42  */
43 #define MSP_MIPS_INTBASE	0
44 #define MSP_INT_SW0		0  /* IRQ for swint0,         C_SW0  */
45 #define MSP_INT_SW1		1  /* IRQ for swint1,         C_SW1  */
46 #define MSP_INT_MAC0 		2  /* IRQ for MAC 0,          C_IRQ0 */
47 #define MSP_INT_MAC1		3  /* IRQ for MAC 1,          C_IRQ1 */
48 #define MSP_INT_C_IRQ2		4  /* Wired off,              C_IRQ2 */
49 #define MSP_INT_VE		5  /* IRQ for Voice Engine,   C_IRQ3 */
50 #define MSP_INT_SLP		6  /* IRQ for SLM block,      C_IRQ4 */
51 #define MSP_INT_TIMER		7  /* IRQ for the MIPS timer, C_IRQ5 */
52 
53 /*
54  * IRQs cascaded on CPU interrupt 4 (CAUSE bit 12, C_IRQ4)
55  * These defines should be tied to the register definition for the SLM
56  * interrupt routine.  For now, just use hard-coded values.
57  */
58 #define MSP_SLP_INTBASE		(MSP_MIPS_INTBASE + 8)
59 #define MSP_INT_EXT0		(MSP_SLP_INTBASE + 0)
60 					/* External interrupt 0         */
61 #define MSP_INT_EXT1		(MSP_SLP_INTBASE + 1)
62 					/* External interrupt 1         */
63 #define MSP_INT_EXT2		(MSP_SLP_INTBASE + 2)
64 					/* External interrupt 2         */
65 #define MSP_INT_EXT3		(MSP_SLP_INTBASE + 3)
66 					/* External interrupt 3         */
67 /* Reserved					   4-7                  */
68 
69 /*
70  *************************************************************************
71  * DANGER/DANGER/DANGER/DANGER/DANGER/DANGER/DANGER/DANGER/DANGER/DANGER *
72  * Some MSP produces have this interrupt labelled as Voice and some are  *
73  * SEC mbox ...                                                          *
74  *************************************************************************
75  */
76 #define MSP_INT_SLP_VE		(MSP_SLP_INTBASE + 8)
77 					/* Cascaded IRQ for Voice Engine*/
78 #define MSP_INT_SLP_TDM		(MSP_SLP_INTBASE + 9)
79 					/* TDM interrupt                */
80 #define MSP_INT_SLP_MAC0	(MSP_SLP_INTBASE + 10)
81 					/* Cascaded IRQ for MAC 0       */
82 #define MSP_INT_SLP_MAC1	(MSP_SLP_INTBASE + 11)
83 					/* Cascaded IRQ for MAC 1       */
84 #define MSP_INT_SEC		(MSP_SLP_INTBASE + 12)
85 					/* IRQ for security engine      */
86 #define	MSP_INT_PER		(MSP_SLP_INTBASE + 13)
87 					/* Peripheral interrupt         */
88 #define	MSP_INT_TIMER0		(MSP_SLP_INTBASE + 14)
89 					/* SLP timer 0                  */
90 #define	MSP_INT_TIMER1		(MSP_SLP_INTBASE + 15)
91 					/* SLP timer 1                  */
92 #define	MSP_INT_TIMER2		(MSP_SLP_INTBASE + 16)
93 					/* SLP timer 2                  */
94 #define	MSP_INT_SLP_TIMER	(MSP_SLP_INTBASE + 17)
95 					/* Cascaded MIPS timer          */
96 #define MSP_INT_BLKCP		(MSP_SLP_INTBASE + 18)
97 					/* Block Copy                   */
98 #define MSP_INT_UART0		(MSP_SLP_INTBASE + 19)
99 					/* UART 0                       */
100 #define MSP_INT_PCI		(MSP_SLP_INTBASE + 20)
101 					/* PCI subsystem                */
102 #define MSP_INT_PCI_DBELL	(MSP_SLP_INTBASE + 21)
103 					/* PCI doorbell                 */
104 #define MSP_INT_PCI_MSI		(MSP_SLP_INTBASE + 22)
105 					/* PCI Message Signal           */
106 #define MSP_INT_PCI_BC0		(MSP_SLP_INTBASE + 23)
107 					/* PCI Block Copy 0             */
108 #define MSP_INT_PCI_BC1		(MSP_SLP_INTBASE + 24)
109 					/* PCI Block Copy 1             */
110 #define MSP_INT_SLP_ERR		(MSP_SLP_INTBASE + 25)
111 					/* SLP error condition          */
112 #define MSP_INT_MAC2		(MSP_SLP_INTBASE + 26)
113 					/* IRQ for MAC2                 */
114 /* Reserved					   26-31                */
115 
116 /*
117  * IRQs cascaded on SLP PER interrupt (MSP_INT_PER)
118  */
119 #define MSP_PER_INTBASE		(MSP_SLP_INTBASE + 32)
120 /* Reserved					   0-1                  */
121 #define MSP_INT_UART1		(MSP_PER_INTBASE + 2)
122 					/* UART 1                       */
123 /* Reserved					   3-5                  */
124 #define MSP_INT_2WIRE		(MSP_PER_INTBASE + 6)
125 					/* 2-wire                       */
126 #define MSP_INT_TM0		(MSP_PER_INTBASE + 7)
127 					/* Peripheral timer block out 0 */
128 #define MSP_INT_TM1		(MSP_PER_INTBASE + 8)
129 					/* Peripheral timer block out 1 */
130 /* Reserved					   9                    */
131 #define MSP_INT_SPRX		(MSP_PER_INTBASE + 10)
132 					/* SPI RX complete              */
133 #define MSP_INT_SPTX		(MSP_PER_INTBASE + 11)
134 					/* SPI TX complete              */
135 #define MSP_INT_GPIO		(MSP_PER_INTBASE + 12)
136 					/* GPIO                         */
137 #define MSP_INT_PER_ERR		(MSP_PER_INTBASE + 13)
138 					/* Peripheral error             */
139 /* Reserved					   14-31                */
140 
141 #endif /* !_MSP_SLP_INT_H */
142