blob: 1ca49e29288a04795cb93f1db7e89ee1fe540559 (
plain) (
tree)
|
|
#ifndef __ASM_SH64_IRQ_H
#define __ASM_SH64_IRQ_H
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* include/asm-sh64/irq.h
*
* Copyright (C) 2000, 2001 Paolo Alberelli
*
*/
/*
* Encoded IRQs are not considered worth to be supported.
* Main reason is that there's no per-encoded-interrupt
* enable/disable mechanism (as there was in SH3/4).
* An all enabled/all disabled is worth only if there's
* a cascaded IC to disable/enable/ack on. Until such
* IC is available there's no such support.
*
* Presumably Encoded IRQs may use extra IRQs beyond 64,
* below. Some logic must be added to cope with IRQ_IRL?
* in an exclusive way.
*
* Priorities are set at Platform level, when IRQ_IRL0-3
* are set to 0 Encoding is allowed. Otherwise it's not
* allowed.
*/
/* Independent IRQs */
#define IRQ_IRL0 0
#define IRQ_IRL1 1
#define IRQ_IRL2 2
#define IRQ_IRL3 3
#define IRQ_INTA 4
#define IRQ_INTB 5
#define IRQ_INTC 6
#define IRQ_INTD 7
#define IRQ_SERR 12
#define IRQ_ERR 13
#define IRQ_PWR3 14
#define IRQ_PWR2 15
#define IRQ_PWR1 16
#define IRQ_PWR0 17
#define IRQ_DMTE0 18
#define IRQ_DMTE1 19
#define IRQ_DMTE2 20
#define IRQ_DMTE3 21
#define IRQ_DAERR 22
#define IRQ_TUNI0 32
#define IRQ_TUNI1 33
#define IRQ_TUNI2 34
#define IRQ_TICPI2 35
#define IRQ_ATI 36
#define IRQ_PRI 37
#define IRQ_CUI 38
#define IRQ_ERI 39
#define IRQ_RXI 40
#define IRQ_BRI 41
#define IRQ_TXI 42
#define IRQ_ITI 63
#define NR_INTC_IRQS 64
#ifdef CONFIG_SH_CAYMAN
#define NR_EXT_IRQS 32
#define START_EXT_IRQS 64
/* PCI bus 2 uses encoded external interrupts on the Cayman board */
#define IRQ_P2INTA (START_EXT_IRQS + (3*8) + 0)
#define IRQ_P2INTB (START_EXT_IRQS + (3*8) + 1)
#define IRQ_P2INTC (START_EXT_IRQS + (3*8) + 2)
#define IRQ_P2INTD (START_EXT_IRQS + (3*8) + 3)
#define I8042_KBD_IRQ (START_EXT_IRQS + 2)
#define I8042_AUX_IRQ (START_EXT_IRQS + 6)
#define IRQ_CFCARD (START_EXT_IRQS + 7)
#define IRQ_PCMCIA (0)
#else
#define NR_EXT_IRQS 0
#endif
#define NR_IRQS (NR_INTC_IRQS+NR_EXT_IRQS)
/* Default IRQs, fixed */
#define TIMER_IRQ IRQ_TUNI0
#define RTC_IRQ IRQ_CUI
/* Default Priorities, Platform may choose differently */
#define NO_PRIORITY 0 /* Disabled */
#define TIMER_PRIORITY 2
#define RTC_PRIORITY TIMER_PRIORITY
#define SCIF_PRIORITY 3
#define INTD_PRIORITY 3
#define IRL3_PRIORITY 4
#define INTC_PRIORITY 6
#define IRL2_PRIORITY 7
#define INTB_PRIORITY 9
#define IRL1_PRIORITY 10
#define INTA_PRIORITY 12
#define IRL0_PRIORITY 13
#define TOP_PRIORITY 15
extern void disable_irq(unsigned int);
extern void disable_irq_nosync(unsigned int);
extern void enable_irq(unsigned int);
extern int intc_evt_to_irq[(0xE20/0x20)+1];
int intc_irq_describe(char* p, int irq);
#define irq_canonicalize(irq) (irq)
#ifdef CONFIG_SH_CAYMAN
int cayman_irq_demux(int evt);
int cayman_irq_describe(char* p, int irq);
#define irq_demux(x) cayman_irq_demux(x)
#define irq_describe(p, x) cayman_irq_describe(p, x)
#else
#define irq_demux(x) (intc_evt_to_irq[x])
#define irq_describe(p, x) intc_irq_describe(p, x)
#endif
/*
* Function for "on chip support modules".
*/
/*
* SH-5 supports Priority based interrupts only.
* Interrupt priorities are defined at platform level.
*/
#define set_ipr_data(a, b, c, d)
#define make_ipr_irq(a)
#define make_imask_irq(a)
#endif /* __ASM_SH64_IRQ_H */
|
