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