mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 16:31:13 +00:00
133 lines
2.7 KiB
C
133 lines
2.7 KiB
C
/*
|
|
* Copyright (C) ADMtek Incorporated.
|
|
* Creator : daniell@admtek.com.tw
|
|
* Copyright 1999, 2000 MIPS Technologies, Inc.
|
|
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
|
|
*/
|
|
|
|
#include <linux/autoconf.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <asm/reboot.h>
|
|
#include <asm/io.h>
|
|
#include <asm/time.h>
|
|
|
|
#define ADM5120_SOFTRESET 0x12000004
|
|
#define STATUS_IE 0x00000001
|
|
#define ALLINTS (IE_IRQ0 | IE_IRQ5 | STATUS_IE)
|
|
|
|
#define ADM5120_CODEREG 0x12000000
|
|
#define ADM5120_CPU_CLK_MASK 0x00300000
|
|
#define ADM5120_CPU_CLK_175 0x00000000
|
|
#define ADM5120_CPU_CLK_200 0x00100000
|
|
#define ADM5120_CPU_CLK_225 0x00200000
|
|
#define ADM5120_CPU_CLK_250 0x00300000
|
|
|
|
void mips_time_init(void);
|
|
|
|
extern unsigned int mips_counter_frequency;
|
|
|
|
void adm5120_restart(char *command)
|
|
{
|
|
*(u32*)KSEG1ADDR(ADM5120_SOFTRESET)=1;
|
|
}
|
|
|
|
|
|
void adm5120_halt(void)
|
|
{
|
|
printk(KERN_NOTICE "\n** You can safely turn off the power\n");
|
|
while (1);
|
|
}
|
|
|
|
|
|
void adm5120_power_off(void)
|
|
{
|
|
adm5120_halt();
|
|
}
|
|
|
|
void __init mips_time_init(void)
|
|
{
|
|
u32 clock;
|
|
|
|
clock = *(u32*)KSEG1ADDR(ADM5120_CODEREG);
|
|
|
|
switch (clock & ADM5120_CPU_CLK_MASK) {
|
|
case ADM5120_CPU_CLK_175:
|
|
mips_counter_frequency = 87500000;
|
|
printk("CPU clock: 175MHz\n");
|
|
break;
|
|
case ADM5120_CPU_CLK_200:
|
|
mips_counter_frequency = 100000000;
|
|
printk("CPU clock: 200MHz\n");
|
|
break;
|
|
case ADM5120_CPU_CLK_225:
|
|
mips_counter_frequency = 112500000;
|
|
printk("CPU clock: 225MHz\n");
|
|
break;
|
|
case ADM5120_CPU_CLK_250:
|
|
mips_counter_frequency = 125000000;
|
|
printk("CPU clock: 250MHz\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void __init plat_timer_setup(struct irqaction *irq)
|
|
{
|
|
/* to generate the first timer interrupt */
|
|
write_c0_compare(read_c0_count()+ mips_counter_frequency/HZ);
|
|
clear_c0_status(ST0_BEV);
|
|
set_c0_status(ALLINTS);
|
|
}
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
printk(KERN_INFO "ADM5120 board setup\n");
|
|
|
|
board_time_init = mips_time_init;
|
|
//board_timer_setup = mips_timer_setup;
|
|
|
|
_machine_restart = adm5120_restart;
|
|
_machine_halt = adm5120_halt;
|
|
pm_power_off = adm5120_power_off;
|
|
|
|
set_io_port_base(KSEG1);
|
|
}
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
return "ADM5120 Board";
|
|
}
|
|
|
|
static struct resource adm5120_hcd_resources[] = {
|
|
[0] = {
|
|
.start = 0x11200000,
|
|
.end = 0x11200084,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = 0x3,
|
|
.end = 0x3,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device adm5120hcd_device = {
|
|
.name = "adm5120-hcd",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(adm5120_hcd_resources),
|
|
.resource = adm5120_hcd_resources,
|
|
};
|
|
|
|
static struct platform_device *devices[] __initdata = {
|
|
&adm5120hcd_device,
|
|
};
|
|
|
|
static int __init adm5120_init(void)
|
|
{
|
|
return platform_add_devices(devices, ARRAY_SIZE(devices));
|
|
}
|
|
|
|
subsys_initcall(adm5120_init);
|