/* *  arch/mips/ddb5074/setup.c -- NEC DDB Vrc-5074 setup routines * *  Copyright (C) 2000 Geert Uytterhoeven <geert@sonycom.com> *                     Sony Software Development Center Europe (SDCE), Brussels */#include <linux/config.h>#include <linux/init.h>#include <linux/kbd_ll.h>#include <linux/kernel.h>#include <linux/kdev_t.h>#include <linux/types.h>#include <linux/sched.h>#include <linux/pci.h>#include <linux/ide.h>#include <linux/ioport.h>#include <linux/irq.h>#include <asm/addrspace.h>#include <asm/bcache.h>#include <asm/irq.h>#include <asm/reboot.h>#include <asm/gdb-stub.h>#include <asm/time.h>#include <asm/nile4.h>#include <asm/ddb5xxx/ddb5074.h>#include <asm/ddb5xxx/ddb5xxx.h>#ifdef CONFIG_KGDBextern void rs_kgdb_hook(int);extern void breakpoint(void);#endifstatic void (*back_to_prom) (void) = (void (*)(void)) 0xbfc00000;static void ddb_machine_restart(char *command){	u32 t;	/* PCI cold reset */	t = nile4_in32(NILE4_PCICTRL + 4);	t |= 0x40000000;	nile4_out32(NILE4_PCICTRL + 4, t);	/* CPU cold reset */	t = nile4_in32(NILE4_CPUSTAT);	t |= 1;	nile4_out32(NILE4_CPUSTAT, t);	/* Call the PROM */	back_to_prom();}static void ddb_machine_halt(void){	printk("DDB Vrc-5074 halted.\n");	do {	} while (1);}static void ddb_machine_power_off(void){	printk("DDB Vrc-5074 halted. Please turn off the power.\n");	do {	} while (1);}extern void ddb_irq_setup(void);extern void rtc_ds1386_init(unsigned long base);extern void (*board_timer_setup) (struct irqaction * irq);static void __init ddb_timer_init(struct irqaction *irq){	/* set the clock to 1 Hz */	nile4_out32(NILE4_T2CTRL, 1000000);	/* enable the General-Purpose Timer */	nile4_out32(NILE4_T2CTRL + 4, 0x00000001);	/* reset timer */	nile4_out32(NILE4_T2CNTR, 0);	/* enable interrupt */	setup_irq(nile4_to_irq(NILE4_INT_GPT), irq);	nile4_enable_irq(nile4_to_irq(NILE4_INT_GPT));	change_c0_status(ST0_IM,		          IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4);}static void __init ddb_time_init(void){	/* we have ds1396 RTC chip */	rtc_ds1386_init(KSEG1ADDR(DDB_PCI_MEM_BASE));}static void __init ddb5074_setup(void){	extern int panic_timeout;	irq_setup = ddb_irq_setup;	set_io_port_base(NILE4_PCI_IO_BASE);	isa_slot_offset = NILE4_PCI_MEM_BASE;	board_timer_setup = ddb_timer_init;	board_time_init = ddb_time_init;	_machine_restart = ddb_machine_restart;	_machine_halt = ddb_machine_halt;	_machine_power_off = ddb_machine_power_off;	ddb_out32(DDB_BAR0, 0);	ddb_set_pmr(DDB_PCIINIT0, DDB_PCICMD_IO, 0, 0x10);	ddb_set_pmr(DDB_PCIINIT1, DDB_PCICMD_MEM, DDB_PCI_MEM_BASE , 0x10);	/* Reboot on panic */	panic_timeout = 180;}early_initcall(ddb5074_setup);#define USE_NILE4_SERIAL	0#if USE_NILE4_SERIAL#define ns16550_in(reg)		nile4_in8((reg)*8)#define ns16550_out(reg, val)	nile4_out8((reg)*8, (val))#else#define NS16550_BASE		(NILE4_PCI_IO_BASE+0x03f8)static inline u8 ns16550_in(u32 reg){	return *(volatile u8 *) (NS16550_BASE + reg);}static inline void ns16550_out(u32 reg, u8 val){	*(volatile u8 *) (NS16550_BASE + reg) = val;}#endif#define NS16550_RBR		0#define NS16550_THR		0#define NS16550_DLL		0#define NS16550_IER		1#define NS16550_DLM		1#define NS16550_FCR		2#define NS16550_IIR		2#define NS16550_LCR		3#define NS16550_MCR		4#define NS16550_LSR		5#define NS16550_MSR		6#define NS16550_SCR		7#define NS16550_LSR_DR		0x01	/* Data ready */#define NS16550_LSR_OE		0x02	/* Overrun */#define NS16550_LSR_PE		0x04	/* Parity error */#define NS16550_LSR_FE		0x08	/* Framing error */#define NS16550_LSR_BI		0x10	/* Break */#define NS16550_LSR_THRE	0x20	/* Xmit holding register empty */#define NS16550_LSR_TEMT	0x40	/* Xmitter empty */#define NS16550_LSR_ERR		0x80	/* Error */void _serinit(void){#if USE_NILE4_SERIAL	ns16550_out(NS16550_LCR, 0x80);	ns16550_out(NS16550_DLM, 0x00);	ns16550_out(NS16550_DLL, 0x36);	/* 9600 baud */	ns16550_out(NS16550_LCR, 0x00);	ns16550_out(NS16550_LCR, 0x03);	ns16550_out(NS16550_FCR, 0x47);#else	/* done by PMON */#endif}void _putc(char c){	while (!(ns16550_in(NS16550_LSR) & NS16550_LSR_THRE));	ns16550_out(NS16550_THR, c);	if (c == '\n') {		while (!(ns16550_in(NS16550_LSR) & NS16550_LSR_THRE));		ns16550_out(NS16550_THR, '\r');	}}void _puts(const char *s){	char c;	while ((c = *s++))		_putc(c);}char _getc(void){	while (!(ns16550_in(NS16550_LSR) & NS16550_LSR_DR));	return ns16550_in(NS16550_RBR);}int _testc(void){	return (ns16550_in(NS16550_LSR) & NS16550_LSR_DR) != 0;}/* *  Hexadecimal 7-segment LED */void ddb5074_led_hex(int hex){	outb(hex, 0x80);}/* *  LEDs D2 and D3, connected to the GPIO pins of the PMU in the ALi M1543 */struct pci_dev *pci_pmu = NULL;void ddb5074_led_d2(int on){	u8 t;	if (pci_pmu) {		pci_read_config_byte(pci_pmu, 0x7e, &t);		if (on)			t &= 0x7f;		else			t |= 0x80;		pci_write_config_byte(pci_pmu, 0x7e, t);	}}void ddb5074_led_d3(int on){	u8 t;	if (pci_pmu) {		pci_read_config_byte(pci_pmu, 0x7e, &t);		if (on)			t &= 0xbf;		else			t |= 0x40;		pci_write_config_byte(pci_pmu, 0x7e, t);	}}