#include <linux/init.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/rtc.h>
#include <linux/vt_kern.h>
#include <linux/interrupt.h>
#include <asm/setup.h>
#include <asm/bootinfo.h>
#include <asm/bootinfo-apollo.h>
#include <asm/byteorder.h>
#include <asm/pgtable.h>
#include <asm/apollohw.h>
#include <asm/irq.h>
#include <asm/machdep.h>
u_long sio01_physaddr;
u_long sio23_physaddr;
u_long rtc_physaddr;
u_long pica_physaddr;
u_long picb_physaddr;
u_long cpuctrl_physaddr;
u_long timer_physaddr;
u_long apollo_model;
extern void dn_sched_init(irq_handler_t handler);
extern void dn_init_IRQ(void);
extern u32 dn_gettimeoffset(void);
extern int dn_dummy_hwclk(int, struct rtc_time *);
extern int dn_dummy_set_clock_mmss(unsigned long);
extern void dn_dummy_reset(void);
#ifdef CONFIG_HEARTBEAT
static void dn_heartbeat(int on);
#endif
static irqreturn_t dn_timer_int(int irq,void *);
static void dn_get_model(char *model);
static const char *apollo_models[] = {
[APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
[APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
[APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
[APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
[APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
};
int __init apollo_parse_bootinfo(const struct bi_record *record)
{
int unknown = 0;
const void *data = record->data;
switch (be16_to_cpu(record->tag)) {
case BI_APOLLO_MODEL:
apollo_model = be32_to_cpup(data);
break;
default:
unknown=1;
}
return unknown;
}
static void __init dn_setup_model(void)
{
pr_info("Apollo hardware found: [%s]\n",
apollo_models[apollo_model - APOLLO_DN3000]);
switch(apollo_model) {
case APOLLO_UNKNOWN:
panic("Unknown apollo model");
break;
case APOLLO_DN3000:
case APOLLO_DN3010:
sio01_physaddr=SAU8_SIO01_PHYSADDR;
rtc_physaddr=SAU8_RTC_PHYSADDR;
pica_physaddr=SAU8_PICA;
picb_physaddr=SAU8_PICB;
cpuctrl_physaddr=SAU8_CPUCTRL;
timer_physaddr=SAU8_TIMER;
break;
case APOLLO_DN4000:
sio01_physaddr=SAU7_SIO01_PHYSADDR;
sio23_physaddr=SAU7_SIO23_PHYSADDR;
rtc_physaddr=SAU7_RTC_PHYSADDR;
pica_physaddr=SAU7_PICA;
picb_physaddr=SAU7_PICB;
cpuctrl_physaddr=SAU7_CPUCTRL;
timer_physaddr=SAU7_TIMER;
break;
case APOLLO_DN4500:
panic("Apollo model not yet supported");
break;
case APOLLO_DN3500:
sio01_physaddr=SAU7_SIO01_PHYSADDR;
sio23_physaddr=SAU7_SIO23_PHYSADDR;
rtc_physaddr=SAU7_RTC_PHYSADDR;
pica_physaddr=SAU7_PICA;
picb_physaddr=SAU7_PICB;
cpuctrl_physaddr=SAU7_CPUCTRL;
timer_physaddr=SAU7_TIMER;
break;
default:
panic("Undefined apollo model");
break;
}
}
int dn_serial_console_wait_key(struct console *co) {
while(!(sio01.srb_csrb & 1))
barrier();
return sio01.rhrb_thrb;
}
void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
{
while(count--) {
if (*str == '\n') {
sio01.rhrb_thrb = (unsigned char)'\r';
while (!(sio01.srb_csrb & 0x4))
;
}
sio01.rhrb_thrb = (unsigned char)*str++;
while (!(sio01.srb_csrb & 0x4))
;
}
}
void dn_serial_print (const char *str)
{
while (*str) {
if (*str == '\n') {
sio01.rhrb_thrb = (unsigned char)'\r';
while (!(sio01.srb_csrb & 0x4))
;
}
sio01.rhrb_thrb = (unsigned char)*str++;
while (!(sio01.srb_csrb & 0x4))
;
}
}
void __init config_apollo(void)
{
int i;
dn_setup_model();
mach_sched_init=dn_sched_init; /* */
mach_init_IRQ=dn_init_IRQ;
arch_gettimeoffset = dn_gettimeoffset;
mach_max_dma_address = 0xffffffff;
mach_hwclk = dn_dummy_hwclk; /* */
mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */
mach_reset = dn_dummy_reset; /* */
#ifdef CONFIG_HEARTBEAT
mach_heartbeat = dn_heartbeat;
#endif
mach_get_model = dn_get_model;
cpuctrl=0xaa00;
/* clear DMA translation table */
for(i=0;i<0x400;i++)
addr_xlat_map[i]=0;
}
irqreturn_t dn_timer_int(int irq, void *dev_id)
{
irq_handler_t timer_handler = dev_id;
volatile unsigned char x;
timer_handler(irq, dev_id);
x = *(volatile unsigned char *)(apollo_timer + 3);
x = *(volatile unsigned char *)(apollo_timer + 5);
return IRQ_HANDLED;
}
void dn_sched_init(irq_handler_t timer_routine)
{
/* program timer 1 */
*(volatile unsigned char *)(apollo_timer + 3) = 0x01;
*(volatile unsigned char *)(apollo_timer + 1) = 0x40;
*(volatile unsigned char *)(apollo_timer + 5) = 0x09;
*(volatile unsigned char *)(apollo_timer + 7) = 0xc4;
/* enable IRQ of PIC B */
*(volatile unsigned char *)(pica+1)&=(~8);
#if 0
pr_info("*(0x10803) %02x\n",
*(volatile unsigned char *)(apollo_timer + 0x3));
pr_info("*(0x10803) %02x\n",
*(volatile unsigned char *)(apollo_timer + 0x3));
#endif
if (request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine))
pr_err("Couldn't register timer interrupt\n");
}
u32 dn_gettimeoffset(void)
{
return 0xdeadbeef;
}
int dn_dummy_hwclk(int op, struct rtc_time *t) {
if(!op) { /* read */
t->tm_sec=rtc->second;
t->tm_min=rtc->minute;
t->tm_hour=rtc->hours;
t->tm_mday=rtc->day_of_month;
t->tm_wday=rtc->day_of_week;
t->tm_mon=rtc->month;
t->tm_year=rtc->year;
} else {
rtc->second=t->tm_sec;
rtc->minute=t->tm_min;
rtc->hours=t->tm_hour;
rtc->day_of_month=t->tm_mday;
if(t->tm_wday!=-1)
rtc->day_of_week=t->tm_wday;
rtc->month=t->tm_mon;
rtc->year=t->tm_year;
}
return 0;
}
int dn_dummy_set_clock_mmss(unsigned long nowtime)
{
pr_info("set_clock_mmss\n");
return 0;
}
void dn_dummy_reset(void) {
dn_serial_print("The end !\n");
for(;;);
}
void dn_dummy_waitbut(void) {
dn_serial_print("waitbut\n");
}
static void dn_get_model(char *model)
{
strcpy(model, "Apollo ");
if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
}
#ifdef CONFIG_HEARTBEAT
static int dn_cpuctrl=0xff00;
static void dn_heartbeat(int on) {
if(on) {
dn_cpuctrl&=~0x100;
cpuctrl=dn_cpuctrl;
}
else {
dn_cpuctrl&=~0x100;
dn_cpuctrl|=0x100;
cpuctrl=dn_cpuctrl;
}
}
#endif