diff options
Diffstat (limited to 'arch/h8300/kernel/irq.c')
-rw-r--r-- | arch/h8300/kernel/irq.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c deleted file mode 100644 index 8ad6d702cd0b..000000000000 --- a/arch/h8300/kernel/irq.c +++ /dev/null @@ -1,99 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/kernel/irq.c - * - * Copyright 2014-2015 Yoshinori Sato <ysato@users.sourceforge.jp> - */ - -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/irqchip.h> -#include <linux/irqdomain.h> -#include <linux/of_irq.h> -#include <asm/traps.h> - -#ifdef CONFIG_RAMKERNEL -typedef void (*h8300_vector)(void); - -static const h8300_vector __initconst trap_table[] = { - 0, 0, 0, 0, - _trace_break, - 0, 0, - _nmi, - _system_call, - 0, 0, - _trace_break, -}; - -static unsigned long __init *get_vector_address(void) -{ - unsigned long *rom_vector = CPU_VECTOR; - unsigned long base, tmp; - int vec_no; - - base = rom_vector[EXT_IRQ0] & ADDR_MASK; - - /* check romvector format */ - for (vec_no = EXT_IRQ0 + 1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) { - if ((base+(vec_no - EXT_IRQ0)*4) != - (rom_vector[vec_no] & ADDR_MASK)) - return NULL; - } - - /* ramvector base address */ - base -= EXT_IRQ0*4; - - /* writerble? */ - tmp = ~(*(volatile unsigned long *)base); - (*(volatile unsigned long *)base) = tmp; - if ((*(volatile unsigned long *)base) != tmp) - return NULL; - return (unsigned long *)base; -} - -static void __init setup_vector(void) -{ - int i; - unsigned long *ramvec, *ramvec_p; - const h8300_vector *trap_entry; - - ramvec = get_vector_address(); - if (ramvec == NULL) - panic("interrupt vector serup failed."); - else - pr_debug("virtual vector at 0x%p\n", ramvec); - - /* create redirect table */ - ramvec_p = ramvec; - trap_entry = trap_table; - for (i = 0; i < NR_IRQS; i++) { - if (i < 12) { - if (*trap_entry) - *ramvec_p = VECTOR(*trap_entry); - ramvec_p++; - trap_entry++; - } else - *ramvec_p++ = REDIRECT(_interrupt_entry); - } - _interrupt_redirect_table = ramvec; -} -#else -void setup_vector(void) -{ - /* noting do */ -} -#endif - -void __init init_IRQ(void) -{ - setup_vector(); - irqchip_init(); -} - -asmlinkage void do_IRQ(int irq) -{ - irq_enter(); - generic_handle_irq(irq); - irq_exit(); -} |