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#include <linux/config.h>
#include <linux/init.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <asm/cpu.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <asm/serial.h>
#include <asm/io.h>
#include <asm/time.h>
#include <prom.h>
#include <platform.h>
#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/percpu.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/notifier.h>
#include <linux/thread_info.h>
#include <linux/time.h>
#include <linux/jiffies.h>
#include <linux/posix-timers.h>
#include <linux/cpu.h>
#include <linux/syscalls.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <asm/div64.h>
#include <asm/timex.h>
#include <asm/io.h>
static void __init serial_init(void);
#if 0
static void __init rtl8652_time_init(void);
static void rtl8652_timer_ack(void);
/*
* Called from the timer interrupt handler to charge one tick to the current
* process. user_tick is 1 if the tick is user time, 0 for system.
*/
void local_timer_interrupt(int irq, void *dev_id)
{
// profile_tick(CPU_PROFILING);
account_process_tick(current, user_mode(get_irq_regs()));
}
/*
* High-level timer interrupt service routines. This function
* is set as irqaction->handler and is invoked through do_IRQ.
*/
irqreturn_t timer_interrupt(int irq, void *dev_id)
{
write_seqlock(&xtime_lock);
//Add for update flash check
rtl8652_timer_ack();
/*
* call the generic timer interrupt handling
*/
do_timer(1);
write_sequnlock(&xtime_lock);
/*
* In UP mode, we call local_timer_interrupt() to do profiling
* and process accouting.
*
* In SMP mode, local_timer_interrupt() is invoked by appropriate
* low-level local timer interrupt handler.
*/
local_timer_interrupt(irq, dev_id);
return IRQ_HANDLED;
}
#endif
const char *get_system_type(void)
{
return "RTL8652";
}
void __init prom_init(void)
{
prom_console_init();
prom_meminit();
}
void __init plat_mem_setup(void)
{
/* Platform Specific Setup */
/* define io/mem region */
ioport_resource.start = 0x18000000;
ioport_resource.end = 0x1fffffff;
iomem_resource.start = 0x18000000;
iomem_resource.end = 0x1fffffff;
serial_init();
// board_time_init = rtl8652_time_init;
// mips_timer_ack = rtl8652_timer_ack;
}
#if 0
static void rtl8652_timer_ack(void)
{
REG32(TCIR) |= TC0IP;
}
static void __init rtl8652_time_init(void)
{
}
#endif
extern int rtl_clockevent_init(int irq);
//void __init plat_time_init(struct irqaction *irq)
void __init plat_time_init(void)
{
/* Setup Timer0 */
/* Clear Timer IP status */
if (REG32(TCIR) & TC0IP)
REG32(TCIR) |= TC0IP;
/* Here irq->handler is passed from outside */
// irq->handler = timer_interrupt;
//setup_irq(TC0_IRQ, irq);
REG32(TCCNR) = 0; /* disable timer before setting CDBR */
/* extend timer base to 4 times for wireless init process */
#if 0
REG32(CDBR) = (DIVISOR) << DIVF_OFFSET;
REG32(TC0DATA) = (MHZ * (1000 / HZ)) << TCD_OFFSET;
#else
REG32(CDBR)=(DIVISOR*4) << DIVF_OFFSET;
REG32(TC0DATA) = ((MHZ * 250) / HZ) << TCD_OFFSET;
#endif
rtl_clockevent_init(TC0_IRQ);
/* enable timer */
REG32(TCCNR) = TC0EN | TC0MODE_TIMER;
REG32(TCIR) = TC0IE;
#ifdef CONFIG_RTL865X_WTDOG
*(volatile unsigned long *)(0xb800311C)=0x00600000;
#endif
}
extern int __init early_serial_setup(struct uart_port *port);
static void __init serial_init(void)
{
#ifdef CONFIG_SERIAL_8250
struct uart_port s;
memset(&s, 0, sizeof(s));
s.line = 0;
s.type = PORT_16550A;
//s.membase = (unsigned char *) UART0_BASE;
s.mapbase = UART0_MAP_BASE;
s.membase = ioremap_nocache(s.mapbase, 0x20);
s.irq = UART0_IRQ;
//s.uartclk = SYSCLK - BAUDRATE * 24;
s.uartclk = 200000000;
//s.flags = UPF_SKIP_TEST | UPF_LOW_LATENCY | UPF_SPD_CUST;
s.flags = UPF_SKIP_TEST | UPF_LOW_LATENCY;
s.iotype = UPIO_MEM;
s.regshift = 2;
//s.fifosize = 1;
s.fifosize = 16;
// s.custom_divisor = SYSCLK / (BAUDRATE * 16) - 1;
/* Call early_serial_setup() here, to set up 8250 console driver */
if (early_serial_setup(&s) != 0) {
panic("Serial setup failed!\n");
}
#endif
}
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