xref: /openbmc/linux/arch/powerpc/sysdev/ipic.h (revision 2874c5fd)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * IPIC private definitions and structure.
4  *
5  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
6  *
7  * Copyright 2005 Freescale Semiconductor, Inc
8  */
9 #ifndef __IPIC_H__
10 #define __IPIC_H__
11 
12 #include <asm/ipic.h>
13 
14 #define NR_IPIC_INTS 128
15 
16 /* External IRQS */
17 #define IPIC_IRQ_EXT0 48
18 #define IPIC_IRQ_EXT1 17
19 #define IPIC_IRQ_EXT7 23
20 
21 /* Default Priority Registers */
22 #define IPIC_PRIORITY_DEFAULT 0x05309770
23 
24 /* System Global Interrupt Configuration Register */
25 #define	SICFR_IPSA	0x00010000
26 #define	SICFR_IPSB	0x00020000
27 #define	SICFR_IPSC	0x00040000
28 #define	SICFR_IPSD	0x00080000
29 #define	SICFR_MPSA	0x00200000
30 #define	SICFR_MPSB	0x00400000
31 
32 /* System External Interrupt Mask Register */
33 #define	SEMSR_SIRQ0	0x00008000
34 
35 /* System Error Control Register */
36 #define SERCR_MCPR	0x00000001
37 
38 struct ipic {
39 	volatile u32 __iomem	*regs;
40 
41 	/* The remapper for this IPIC */
42 	struct irq_domain		*irqhost;
43 };
44 
45 struct ipic_info {
46 	u8	ack;		/* pending register offset from base if the irq
47 				   supports ack operation */
48 	u8	mask;		/* mask register offset from base */
49 	u8	prio;		/* priority register offset from base */
50 	u8	force;		/* force register offset from base */
51 	u8	bit;		/* register bit position (as per doc)
52 				   bit mask = 1 << (31 - bit) */
53 	u8	prio_mask;	/* priority mask value */
54 };
55 
56 #endif /* __IPIC_H__ */
57