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-rw-r--r--arch/h8300/platform/h8s/ints.c304
1 files changed, 0 insertions, 304 deletions
diff --git a/arch/h8300/platform/h8s/ints.c b/arch/h8300/platform/h8s/ints.c
deleted file mode 100644
index ac10b978385..00000000000
--- a/arch/h8300/platform/h8s/ints.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * linux/arch/h8300/platform/h8s/ints.c
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * Based on linux/arch/$(ARCH)/platform/$(PLATFORM)/ints.c
- *
- * 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.
- *
- * Copyright 1996 Roman Zippel
- * Copyright 1999 D. Jeff Dionne <jeff@rt-control.com>
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/bootmem.h>
-#include <linux/random.h>
-#include <linux/hardirq.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/traps.h>
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/gpio.h>
-#include <asm/regs267x.h>
-#include <asm/errno.h>
-
-/*
- * This structure has only 4 elements for speed reasons
- */
-typedef struct irq_handler {
- irqreturn_t (*handler)(int, void *, struct pt_regs *);
- int flags;
- int count;
- void *dev_id;
- const char *devname;
-} irq_handler_t;
-
-static irq_handler_t *irq_list[NR_IRQS];
-
-/* IRQ pin assignment */
-struct irq_pins {
- unsigned char port_no;
- unsigned char bit_no;
-};
-/* ISTR = 0 */
-static const struct irq_pins irq_assign_table0[16]={
- {H8300_GPIO_P5,H8300_GPIO_B0},{H8300_GPIO_P5,H8300_GPIO_B1},
- {H8300_GPIO_P5,H8300_GPIO_B2},{H8300_GPIO_P5,H8300_GPIO_B3},
- {H8300_GPIO_P5,H8300_GPIO_B4},{H8300_GPIO_P5,H8300_GPIO_B5},
- {H8300_GPIO_P5,H8300_GPIO_B6},{H8300_GPIO_P5,H8300_GPIO_B7},
- {H8300_GPIO_P6,H8300_GPIO_B0},{H8300_GPIO_P6,H8300_GPIO_B1},
- {H8300_GPIO_P6,H8300_GPIO_B2},{H8300_GPIO_P6,H8300_GPIO_B3},
- {H8300_GPIO_P6,H8300_GPIO_B4},{H8300_GPIO_P6,H8300_GPIO_B5},
- {H8300_GPIO_PF,H8300_GPIO_B1},{H8300_GPIO_PF,H8300_GPIO_B2},
-};
-/* ISTR = 1 */
-static const struct irq_pins irq_assign_table1[16]={
- {H8300_GPIO_P8,H8300_GPIO_B0},{H8300_GPIO_P8,H8300_GPIO_B1},
- {H8300_GPIO_P8,H8300_GPIO_B2},{H8300_GPIO_P8,H8300_GPIO_B3},
- {H8300_GPIO_P8,H8300_GPIO_B4},{H8300_GPIO_P8,H8300_GPIO_B5},
- {H8300_GPIO_PH,H8300_GPIO_B2},{H8300_GPIO_PH,H8300_GPIO_B3},
- {H8300_GPIO_P2,H8300_GPIO_B0},{H8300_GPIO_P2,H8300_GPIO_B1},
- {H8300_GPIO_P2,H8300_GPIO_B2},{H8300_GPIO_P2,H8300_GPIO_B3},
- {H8300_GPIO_P2,H8300_GPIO_B4},{H8300_GPIO_P2,H8300_GPIO_B5},
- {H8300_GPIO_P2,H8300_GPIO_B6},{H8300_GPIO_P2,H8300_GPIO_B7},
-};
-
-static short use_kmalloc = 0;
-
-extern unsigned long *interrupt_redirect_table;
-
-#define CPU_VECTOR ((unsigned long *)0x000000)
-#define ADDR_MASK (0xffffff)
-
-static inline unsigned long *get_vector_address(void)
-{
- volatile 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_IRQ15; 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 = ~(*(unsigned long *)base);
- (*(unsigned long *)base) = tmp;
- if ((*(unsigned long *)base) != tmp)
- return NULL;
- return (unsigned long *)base;
-}
-
-void __init init_IRQ(void)
-{
-#if defined(CONFIG_RAMKERNEL)
- int i;
- unsigned long *ramvec,*ramvec_p;
- unsigned long break_vec;
-
- ramvec = get_vector_address();
- if (ramvec == NULL)
- panic("interrupt vector serup failed.");
- else
- printk("virtual vector at 0x%08lx\n",(unsigned long)ramvec);
-
-#if defined(CONFIG_GDB_DEBUG)
- /* save original break vector */
- break_vec = ramvec[TRAP3_VEC];
-#else
- break_vec = VECTOR(trace_break);
-#endif
-
- /* create redirect table */
- for (ramvec_p = ramvec, i = 0; i < NR_IRQS; i++)
- *ramvec_p++ = REDIRECT(interrupt_entry);
-
- /* set special vector */
- ramvec[TRAP0_VEC] = VECTOR(system_call);
- ramvec[TRAP3_VEC] = break_vec;
- interrupt_redirect_table = ramvec;
-#ifdef DUMP_VECTOR
- ramvec_p = ramvec;
- for (i = 0; i < NR_IRQS; i++) {
- if ((i % 8) == 0)
- printk("\n%p: ",ramvec_p);
- printk("%p ",*ramvec_p);
- ramvec_p++;
- }
- printk("\n");
-#endif
-#endif
-}
-
-int request_irq(unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long flags, const char *devname, void *dev_id)
-{
- unsigned short ptn = 1 << (irq - EXT_IRQ0);
- irq_handler_t *irq_handle;
- if (irq < 0 || irq >= NR_IRQS) {
- printk("Incorrect IRQ %d from %s\n", irq, devname);
- return -EINVAL;
- }
- if (irq_list[irq])
- return -EBUSY; /* already used */
- if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
- /* initialize IRQ pin */
- unsigned int port_no,bit_no;
- if (*(volatile unsigned short *)ITSR & ptn) {
- port_no = irq_assign_table1[irq - EXT_IRQ0].port_no;
- bit_no = irq_assign_table1[irq - EXT_IRQ0].bit_no;
- } else {
- port_no = irq_assign_table0[irq - EXT_IRQ0].port_no;
- bit_no = irq_assign_table0[irq - EXT_IRQ0].bit_no;
- }
- if (H8300_GPIO_RESERVE(port_no, bit_no) == 0)
- return -EBUSY; /* pin already use */
- H8300_GPIO_DDR(port_no, bit_no, H8300_GPIO_INPUT);
- *(volatile unsigned short *)ISR &= ~ptn; /* ISR clear */
- }
-
- if (use_kmalloc)
- irq_handle = kmalloc(sizeof(irq_handler_t), GFP_ATOMIC);
- else {
- /* use bootmem allocator */
- irq_handle = (irq_handler_t *)alloc_bootmem(sizeof(irq_handler_t));
- irq_handle = (irq_handler_t *)((unsigned long)irq_handle | 0x80000000);
- }
-
- if (irq_handle == NULL)
- return -ENOMEM;
-
- irq_handle->handler = handler;
- irq_handle->flags = flags;
- irq_handle->count = 0;
- irq_handle->dev_id = dev_id;
- irq_handle->devname = devname;
- irq_list[irq] = irq_handle;
- if (irq_handle->flags & IRQF_SAMPLE_RANDOM)
- rand_initialize_irq(irq);
-
- /* enable interrupt */
- /* compatible i386 */
- if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15)
- *(volatile unsigned short *)IER |= ptn;
- return 0;
-}
-
-EXPORT_SYMBOL(request_irq);
-
-void free_irq(unsigned int irq, void *dev_id)
-{
- if (irq >= NR_IRQS)
- return;
- if (irq_list[irq]->dev_id != dev_id)
- printk("%s: Removing probably wrong IRQ %d from %s\n",
- __FUNCTION__, irq, irq_list[irq]->devname);
- if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
- /* disable interrupt & release IRQ pin */
- unsigned short port_no,bit_no;
- *(volatile unsigned short *)ISR &= ~(1 << (irq - EXT_IRQ0));
- *(volatile unsigned short *)IER |= 1 << (irq - EXT_IRQ0);
- if (*(volatile unsigned short *)ITSR & (1 << (irq - EXT_IRQ0))) {
- port_no = irq_assign_table1[irq - EXT_IRQ0].port_no;
- bit_no = irq_assign_table1[irq - EXT_IRQ0].bit_no;
- } else {
- port_no = irq_assign_table0[irq - EXT_IRQ0].port_no;
- bit_no = irq_assign_table0[irq - EXT_IRQ0].bit_no;
- }
- H8300_GPIO_FREE(port_no, bit_no);
- }
- if (((unsigned long)irq_list[irq] & 0x80000000) == 0) {
- kfree(irq_list[irq]);
- irq_list[irq] = NULL;
- }
-}
-
-EXPORT_SYMBOL(free_irq);
-
-unsigned long probe_irq_on (void)
-{
- return 0;
-}
-
-EXPORT_SYMBOL(probe_irq_on);
-
-int probe_irq_off (unsigned long irqs)
-{
- return 0;
-}
-
-EXPORT_SYMBOL(probe_irq_off);
-
-void enable_irq(unsigned int irq)
-{
- if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15)
- *(volatile unsigned short *)IER |= 1 << (irq - EXT_IRQ0);
-}
-
-void disable_irq(unsigned int irq)
-{
- if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15)
- *(volatile unsigned short *)IER &= ~(1 << (irq - EXT_IRQ0));
-}
-
-asmlinkage void process_int(unsigned long vec, struct pt_regs *fp)
-{
- irq_enter();
- /* ISR clear */
- /* compatible i386 */
- if (vec >= EXT_IRQ0 && vec <= EXT_IRQ15)
- *(volatile unsigned short *)ISR &= ~(1 << (vec - EXT_IRQ0));
- if (vec < NR_IRQS) {
- if (irq_list[vec]) {
- irq_list[vec]->handler(vec, irq_list[vec]->dev_id, fp);
- irq_list[vec]->count++;
- if (irq_list[vec]->flags & IRQF_SAMPLE_RANDOM)
- add_interrupt_randomness(vec);
- }
- } else {
- BUG();
- }
- irq_exit();
-}
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i = *(loff_t *) v;
-
- if ((i < NR_IRQS) && (irq_list[i] !=NULL)) {
- seq_printf(p, "%3d: %10u ",i,irq_list[i]->count);
- seq_printf(p, "%s\n", irq_list[i]->devname);
- }
-
- return 0;
-}
-
-void init_irq_proc(void)
-{
-}
-
-static int __init enable_kmalloc(void)
-{
- use_kmalloc = 1;
- return 0;
-}
-core_initcall(enable_kmalloc);
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