From 4b08478422040ae8cb11acc15d51f1cdb0ac39c8 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 30 Aug 2013 06:01:49 -0700 Subject: Drop support for Renesas H8/300 (h8300) architecture H8/300 has been dead for several years, and the kernel for it has not compiled for ages. Drop support for it. Cc: Yoshinori Sato Acked-by: Greg Kroah-Hartman Signed-off-by: Guenter Roeck --- arch/h8300/kernel/irq.c | 165 ------------------------------------------------ 1 file changed, 165 deletions(-) delete mode 100644 arch/h8300/kernel/irq.c (limited to 'arch/h8300/kernel/irq.c') diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c deleted file mode 100644 index 2fa8ac7b79b5..000000000000 --- a/arch/h8300/kernel/irq.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * linux/arch/h8300/kernel/irq.c - * - * Copyright 2007 Yoshinori Sato - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -/*#define DEBUG*/ - -extern unsigned long *interrupt_redirect_table; -extern const int h8300_saved_vectors[]; -extern const h8300_vector h8300_trap_table[]; -int h8300_enable_irq_pin(unsigned int irq); -void h8300_disable_irq_pin(unsigned int irq); - -#define CPU_VECTOR ((unsigned long *)0x000000) -#define ADDR_MASK (0xffffff) - -static inline int is_ext_irq(unsigned int irq) -{ - return (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS)); -} - -static void h8300_enable_irq(struct irq_data *data) -{ - if (is_ext_irq(data->irq)) - IER_REGS |= 1 << (data->irq - EXT_IRQ0); -} - -static void h8300_disable_irq(struct irq_data *data) -{ - if (is_ext_irq(data->irq)) - IER_REGS &= ~(1 << (data->irq - EXT_IRQ0)); -} - -static unsigned int h8300_startup_irq(struct irq_data *data) -{ - if (is_ext_irq(data->irq)) - return h8300_enable_irq_pin(data->irq); - else - return 0; -} - -static void h8300_shutdown_irq(struct irq_data *data) -{ - if (is_ext_irq(data->irq)) - h8300_disable_irq_pin(data->irq); -} - -/* - * h8300 interrupt controller implementation - */ -struct irq_chip h8300irq_chip = { - .name = "H8300-INTC", - .irq_startup = h8300_startup_irq, - .irq_shutdown = h8300_shutdown_irq, - .irq_enable = h8300_enable_irq, - .irq_disable = h8300_disable_irq, -}; - -#if defined(CONFIG_RAMKERNEL) -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_IRQ1; 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 check */ - 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; - const int *saved_vector; - - ramvec = get_vector_address(); - if (ramvec == NULL) - panic("interrupt vector serup failed."); - else - printk(KERN_INFO "virtual vector at 0x%08lx\n",(unsigned long)ramvec); - - /* create redirect table */ - ramvec_p = ramvec; - trap_entry = h8300_trap_table; - saved_vector = h8300_saved_vectors; - for ( i = 0; i < NR_IRQS; i++) { - if (i == *saved_vector) { - ramvec_p++; - saved_vector++; - } else { - if ( i < NR_TRAPS ) { - if (*trap_entry) - *ramvec_p = VECTOR(*trap_entry); - ramvec_p++; - trap_entry++; - } else - *ramvec_p++ = REDIRECT(interrupt_entry); - } - } - interrupt_redirect_table = ramvec; -#ifdef DEBUG - ramvec_p = ramvec; - for (i = 0; i < NR_IRQS; i++) { - if ((i % 8) == 0) - printk(KERN_DEBUG "\n%p: ",ramvec_p); - printk(KERN_DEBUG "%p ",*ramvec_p); - ramvec_p++; - } - printk(KERN_DEBUG "\n"); -#endif -} -#else -#define setup_vector() do { } while(0) -#endif - -void __init init_IRQ(void) -{ - int c; - - setup_vector(); - - for (c = 0; c < NR_IRQS; c++) - irq_set_chip_and_handler(c, &h8300irq_chip, handle_simple_irq); -} - -asmlinkage void do_IRQ(int irq) -{ - irq_enter(); - generic_handle_irq(irq); - irq_exit(); -} -- cgit v1.2.3-59-g8ed1b