91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
/*
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* linux/arch/mips/tx4938/common/setup.c
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*
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* common tx4938 setup routines
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*
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* 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
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* terms of the GNU General Public License version 2. This program is
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* licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*
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* Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
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*/
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/kernel_stat.h>
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#include <linux/module.h>
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/timex.h>
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#include <linux/slab.h>
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#include <linux/random.h>
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#include <linux/irq.h>
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#include <asm/bitops.h>
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#include <asm/bootinfo.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/mipsregs.h>
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#include <asm/system.h>
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#include <asm/time.h>
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#include <asm/time.h>
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#include <asm/tx4938/rbtx4938.h>
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extern void toshiba_rbtx4938_setup(void);
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extern void rbtx4938_time_init(void);
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void __init tx4938_setup(void);
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void __init tx4938_time_init(void);
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void __init tx4938_timer_setup(struct irqaction *irq);
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void dump_cp0(char *key);
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void (*__wbflush) (void);
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static void
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tx4938_write_buffer_flush(void)
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{
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mmiowb();
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__asm__ __volatile__(
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".set push\n\t"
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".set noreorder\n\t"
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"lw $0,%0\n\t"
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"nop\n\t"
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".set pop"
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: /* no output */
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: "m" (*(int *)KSEG1)
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: "memory");
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}
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void __init
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plat_setup(void)
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{
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board_time_init = tx4938_time_init;
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board_timer_setup = tx4938_timer_setup;
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__wbflush = tx4938_write_buffer_flush;
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toshiba_rbtx4938_setup();
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}
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void __init
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tx4938_time_init(void)
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{
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rbtx4938_time_init();
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}
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void __init
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tx4938_timer_setup(struct irqaction *irq)
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{
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u32 count;
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u32 c1;
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u32 c2;
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setup_irq(TX4938_IRQ_CPU_TIMER, irq);
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c1 = read_c0_count();
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count = c1 + (mips_hpt_frequency / HZ);
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write_c0_compare(count);
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c2 = read_c0_count();
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}
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