[MIPS] Delete unused arch/mips/gt64120/common/

Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/gt64120/common/Makefile

-#
-# Makefile for common code of gt64120-based boards.
-#
-
-obj-y	 		+= time.o

arch/mips/gt64120/common/time.c

-/*
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * Galileo Technology chip interrupt handler
- */
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <asm/irq_regs.h>
-#include <asm/gt64120.h>
-
-/*
- * These are interrupt handlers for the GT on-chip interrupts.  They all come
- * in to the MIPS on a single interrupt line, and have to be handled and ack'ed
- * differently than other MIPS interrupts.
- */
-
-static irqreturn_t gt64120_irq(int irq, void *dev_id)
-{
-	unsigned int irq_src, int_high_src, irq_src_mask, int_high_src_mask;
-	int handled = 0;
-
-	irq_src = GT_READ(GT_INTRCAUSE_OFS);
-	irq_src_mask = GT_READ(GT_INTRMASK_OFS);
-	int_high_src = GT_READ(GT_HINTRCAUSE_OFS);
-	int_high_src_mask = GT_READ(GT_HINTRMASK_OFS);
-	irq_src = irq_src & irq_src_mask;
-	int_high_src = int_high_src & int_high_src_mask;
-
-	if (irq_src & 0x00000800) {	/* Check for timer interrupt */
-		handled = 1;
-		irq_src &= ~0x00000800;
-		do_timer(1);
-#ifndef CONFIG_SMP
-		update_process_times(user_mode(get_irq_regs()));
-#endif
-	}
-
-	GT_WRITE(GT_INTRCAUSE_OFS, 0);
-	GT_WRITE(GT_HINTRCAUSE_OFS, 0);
-
-	return IRQ_HANDLED;
-}
-
-/*
- * Initializes timer using galileo's built in timer.
- */
-#ifdef CONFIG_SYSCLK_100
-#define Sys_clock (100 * 1000000)	// 100 MHz
-#endif
-#ifdef CONFIG_SYSCLK_83
-#define Sys_clock (83.333 * 1000000)	// 83.333 MHz
-#endif
-#ifdef CONFIG_SYSCLK_75
-#define Sys_clock (75 * 1000000)	// 75 MHz
-#endif
-
-/*
- * This will ignore the standard MIPS timer interrupt handler that is passed in
- * as *irq (=irq0 in ../kernel/time.c).  We will do our own timer interrupt
- * handling.
- */
-void __init plat_timer_setup(struct irqaction *irq)
-{
-	static struct irqaction timer;
-
-	/* Disable timer first */
-	GT_WRITE(GT_TC_CONTROL_OFS, 0);
-	/* Load timer value for 100 Hz */
-	GT_WRITE(GT_TC3_OFS, Sys_clock / HZ);
-
-	/*
-	 * Create the IRQ structure entry for the timer.  Since we're too early
-	 * in the boot process to use the "request_irq()" call, we'll hard-code
-	 * the values to the correct interrupt line.
-	 */
-	timer.handler = gt64120_irq;
-	timer.flags = IRQF_SHARED | IRQF_DISABLED;
-	timer.name = "timer";
-	timer.dev_id = NULL;
-	timer.next = NULL;
-	timer.mask = CPU_MASK_NONE;
-	irq_desc[GT_TIMER].action = &timer;
-
-	enable_irq(GT_TIMER);
-
-	/* Enable timer ints */
-	GT_WRITE(GT_TC_CONTROL_OFS, 0xc0);
-	/* clear Cause register first */
-	GT_WRITE(GT_INTRCAUSE_OFS, 0x0);
-	/* Unmask timer int */
-	GT_WRITE(GT_INTRMASK_OFS, 0x800);
-	/* Clear High int register */
-	GT_WRITE(GT_HINTRCAUSE_OFS, 0x0);
-	/* Mask All interrupts at High cause interrupt */
-	GT_WRITE(GT_HINTRMASK_OFS, 0x0);
-}