diff options
Diffstat (limited to 'target/linux/realtek/files/arch/mips/rtl8196c/setup.c')
| -rw-r--r-- | target/linux/realtek/files/arch/mips/rtl8196c/setup.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/target/linux/realtek/files/arch/mips/rtl8196c/setup.c b/target/linux/realtek/files/arch/mips/rtl8196c/setup.c new file mode 100644 index 000000000..7a2598495 --- /dev/null +++ b/target/linux/realtek/files/arch/mips/rtl8196c/setup.c @@ -0,0 +1,191 @@ +#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 +} |