arch/m68k/hp300/config.c - arm/linux-arm64-legacy - Git at Google

 /*
  *  linux/arch/m68k/hp300/config.c
  *
  *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
  *
  *  This file contains the HP300-specific initialisation code.  It gets
  *  called by setup.c.
  */

 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/console.h>

 #include <asm/bootinfo.h>
 #include <asm/bootinfo-hp300.h>
 #include <asm/byteorder.h>
 #include <asm/machdep.h>
 #include <asm/blinken.h>
 #include <asm/io.h>                               /* readb() and writeb() */
 #include <asm/hp300hw.h>
 #include <asm/rtc.h>

 #include "time.h"

 unsigned long hp300_model;
 unsigned long hp300_uart_scode = -1;
 unsigned char hp300_ledstate;
 EXPORT_SYMBOL(hp300_ledstate);

 static char s_hp330[] __initdata = "330";
 static char s_hp340[] __initdata = "340";
 static char s_hp345[] __initdata = "345";
 static char s_hp360[] __initdata = "360";
 static char s_hp370[] __initdata = "370";
 static char s_hp375[] __initdata = "375";
 static char s_hp380[] __initdata = "380";
 static char s_hp385[] __initdata = "385";
 static char s_hp400[] __initdata = "400";
 static char s_hp425t[] __initdata = "425t";
 static char s_hp425s[] __initdata = "425s";
 static char s_hp425e[] __initdata = "425e";
 static char s_hp433t[] __initdata = "433t";
 static char s_hp433s[] __initdata = "433s";
 static char *hp300_models[] __initdata = {
 	[HP_320]	= NULL,
 	[HP_330]	= s_hp330,
 	[HP_340]	= s_hp340,
 	[HP_345]	= s_hp345,
 	[HP_350]	= NULL,
 	[HP_360]	= s_hp360,
 	[HP_370]	= s_hp370,
 	[HP_375]	= s_hp375,
 	[HP_380]	= s_hp380,
 	[HP_385]	= s_hp385,
 	[HP_400]	= s_hp400,
 	[HP_425T]	= s_hp425t,
 	[HP_425S]	= s_hp425s,
 	[HP_425E]	= s_hp425e,
 	[HP_433T]	= s_hp433t,
 	[HP_433S]	= s_hp433s,
 };

 static char hp300_model_name[13] = "HP9000/";

 extern void hp300_reset(void);
 #ifdef CONFIG_SERIAL_8250_CONSOLE
 extern int hp300_setup_serial_console(void) __init;
 #endif

 int __init hp300_parse_bootinfo(const struct bi_record *record)
 {
 	int unknown = 0;
 	const void *data = record->data;

 	switch (be16_to_cpu(record->tag)) {
 	case BI_HP300_MODEL:
 		hp300_model = be32_to_cpup(data);
 		break;

 	case BI_HP300_UART_SCODE:
 		hp300_uart_scode = be32_to_cpup(data);
 		break;

 	case BI_HP300_UART_ADDR:
 		/* serial port address: ignored here */
 		break;

 	default:
 		unknown = 1;
 	}

 	return unknown;
 }

 #ifdef CONFIG_HEARTBEAT
 static void hp300_pulse(int x)
 {
 	if (x)
 		blinken_leds(0x10, 0);
 	else
 		blinken_leds(0, 0x10);
 }
 #endif

 static void hp300_get_model(char *model)
 {
 	strcpy(model, hp300_model_name);
 }

 #define RTCBASE			0xf0420000
 #define RTC_DATA		0x1
 #define RTC_CMD			0x3

 #define	RTC_BUSY		0x02
 #define	RTC_DATA_RDY		0x01

 #define rtc_busy()		(in_8(RTCBASE + RTC_CMD) & RTC_BUSY)
 #define rtc_data_available()	(in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY)
 #define rtc_status()		(in_8(RTCBASE + RTC_CMD))
 #define rtc_command(x)		out_8(RTCBASE + RTC_CMD, (x))
 #define rtc_read_data()		(in_8(RTCBASE + RTC_DATA))
 #define rtc_write_data(x)	out_8(RTCBASE + RTC_DATA, (x))

 #define RTC_SETREG	0xe0
 #define RTC_WRITEREG	0xc2
 #define RTC_READREG	0xc3

 #define RTC_REG_SEC2	0
 #define RTC_REG_SEC1	1
 #define RTC_REG_MIN2	2
 #define RTC_REG_MIN1	3
 #define RTC_REG_HOUR2	4
 #define RTC_REG_HOUR1	5
 #define RTC_REG_WDAY	6
 #define RTC_REG_DAY2	7
 #define RTC_REG_DAY1	8
 #define RTC_REG_MON2	9
 #define RTC_REG_MON1	10
 #define RTC_REG_YEAR2	11
 #define RTC_REG_YEAR1	12

 #define RTC_HOUR1_24HMODE 0x8

 #define RTC_STAT_MASK	0xf0
 #define RTC_STAT_RDY	0x40

 static inline unsigned char hp300_rtc_read(unsigned char reg)
 {
 	unsigned char s, ret;
 	unsigned long flags;

 	local_irq_save(flags);

 	while (rtc_busy());
 	rtc_command(RTC_SETREG);
 	while (rtc_busy());
 	rtc_write_data(reg);
 	while (rtc_busy());
 	rtc_command(RTC_READREG);

 	do {
 		while (!rtc_data_available());
 		s = rtc_status();
 		ret = rtc_read_data();
 	} while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);

 	local_irq_restore(flags);

 	return ret;
 }

 static inline unsigned char hp300_rtc_write(unsigned char reg,
 					    unsigned char val)
 {
 	unsigned char s, ret;
 	unsigned long flags;

 	local_irq_save(flags);

 	while (rtc_busy());
 	rtc_command(RTC_SETREG);
 	while (rtc_busy());
 	rtc_write_data((val << 4) | reg);
 	while (rtc_busy());
 	rtc_command(RTC_WRITEREG);
 	while (rtc_busy());
 	rtc_command(RTC_READREG);

 	do {
 		while (!rtc_data_available());
 		s = rtc_status();
 		ret = rtc_read_data();
 	} while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);

 	local_irq_restore(flags);

 	return ret;
 }

 static int hp300_hwclk(int op, struct rtc_time *t)
 {
 	if (!op) { /* read */
 		t->tm_sec  = hp300_rtc_read(RTC_REG_SEC1) * 10 +
 			hp300_rtc_read(RTC_REG_SEC2);
 		t->tm_min  = hp300_rtc_read(RTC_REG_MIN1) * 10 +
 			hp300_rtc_read(RTC_REG_MIN2);
 		t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 +
 			hp300_rtc_read(RTC_REG_HOUR2);
 		t->tm_wday = -1;
 		t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 +
 			hp300_rtc_read(RTC_REG_DAY2);
 		t->tm_mon  = hp300_rtc_read(RTC_REG_MON1) * 10 +
 			hp300_rtc_read(RTC_REG_MON2) - 1;
 		t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 +
 			hp300_rtc_read(RTC_REG_YEAR2);
 		if (t->tm_year <= 69)
 			t->tm_year += 100;
 	} else {
 		hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10);
 		hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10);
 		hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10);
 		hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10);
 		hp300_rtc_write(RTC_REG_HOUR1,
 				((t->tm_hour / 10) & 3) | RTC_HOUR1_24HMODE);
 		hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10);
 		hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10);
 		hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10);
 		hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10);
 		hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10);
 		if (t->tm_year >= 100)
 			t->tm_year -= 100;
 		hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10);
 		hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10);
 	}

 	return 0;
 }

 static unsigned int hp300_get_ss(void)
 {
 	return hp300_rtc_read(RTC_REG_SEC1) * 10 +
 		hp300_rtc_read(RTC_REG_SEC2);
 }

 static void __init hp300_init_IRQ(void)
 {
 }

 void __init config_hp300(void)
 {
 	mach_sched_init      = hp300_sched_init;
 	mach_init_IRQ        = hp300_init_IRQ;
 	mach_get_model       = hp300_get_model;
 	arch_gettimeoffset   = hp300_gettimeoffset;
 	mach_hwclk	     = hp300_hwclk;
 	mach_get_ss	     = hp300_get_ss;
 	mach_reset           = hp300_reset;
 #ifdef CONFIG_HEARTBEAT
 	mach_heartbeat       = hp300_pulse;
 #endif
 	mach_max_dma_address = 0xffffffff;

 	if (hp300_model >= HP_330 && hp300_model <= HP_433S &&
 	    hp300_model != HP_350) {
 		pr_info("Detected HP9000 model %s\n",
 			hp300_models[hp300_model-HP_320]);
 		strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
 	} else {
 		panic("Unknown HP9000 Model");
 	}
 #ifdef CONFIG_SERIAL_8250_CONSOLE
 	hp300_setup_serial_console();
 #endif
 }
	/*
	* linux/arch/m68k/hp300/config.c
	*
	* Copyright (C) 1998 Philip Blundell <philb@gnu.org>
	*
	* This file contains the HP300-specific initialisation code. It gets
	* called by setup.c.
	*/

	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/string.h>
	#include <linux/kernel.h>
	#include <linux/console.h>

	#include <asm/bootinfo.h>
	#include <asm/bootinfo-hp300.h>
	#include <asm/byteorder.h>
	#include <asm/machdep.h>
	#include <asm/blinken.h>
	#include <asm/io.h> /* readb() and writeb() */
	#include <asm/hp300hw.h>
	#include <asm/rtc.h>

	#include "time.h"

	unsigned long hp300_model;
	unsigned long hp300_uart_scode = -1;
	unsigned char hp300_ledstate;
	EXPORT_SYMBOL(hp300_ledstate);

	static char s_hp330[] __initdata = "330";
	static char s_hp340[] __initdata = "340";
	static char s_hp345[] __initdata = "345";
	static char s_hp360[] __initdata = "360";
	static char s_hp370[] __initdata = "370";
	static char s_hp375[] __initdata = "375";
	static char s_hp380[] __initdata = "380";
	static char s_hp385[] __initdata = "385";
	static char s_hp400[] __initdata = "400";
	static char s_hp425t[] __initdata = "425t";
	static char s_hp425s[] __initdata = "425s";
	static char s_hp425e[] __initdata = "425e";
	static char s_hp433t[] __initdata = "433t";
	static char s_hp433s[] __initdata = "433s";
	static char *hp300_models[] __initdata = {
	[HP_320] = NULL,
	[HP_330] = s_hp330,
	[HP_340] = s_hp340,
	[HP_345] = s_hp345,
	[HP_350] = NULL,
	[HP_360] = s_hp360,
	[HP_370] = s_hp370,
	[HP_375] = s_hp375,
	[HP_380] = s_hp380,
	[HP_385] = s_hp385,
	[HP_400] = s_hp400,
	[HP_425T] = s_hp425t,
	[HP_425S] = s_hp425s,
	[HP_425E] = s_hp425e,
	[HP_433T] = s_hp433t,
	[HP_433S] = s_hp433s,
	};

	static char hp300_model_name[13] = "HP9000/";

	extern void hp300_reset(void);
	#ifdef CONFIG_SERIAL_8250_CONSOLE
	extern int hp300_setup_serial_console(void) __init;
	#endif

	int __init hp300_parse_bootinfo(const struct bi_record *record)
	{
	int unknown = 0;
	const void *data = record->data;

	switch (be16_to_cpu(record->tag)) {
	case BI_HP300_MODEL:
	hp300_model = be32_to_cpup(data);
	break;

	case BI_HP300_UART_SCODE:
	hp300_uart_scode = be32_to_cpup(data);
	break;

	case BI_HP300_UART_ADDR:
	/* serial port address: ignored here */
	break;

	default:
	unknown = 1;
	}

	return unknown;
	}

	#ifdef CONFIG_HEARTBEAT
	static void hp300_pulse(int x)
	{
	if (x)
	blinken_leds(0x10, 0);
	else
	blinken_leds(0, 0x10);
	}
	#endif

	static void hp300_get_model(char *model)
	{
	strcpy(model, hp300_model_name);
	}

	#define RTCBASE 0xf0420000
	#define RTC_DATA 0x1
	#define RTC_CMD 0x3

	#define RTC_BUSY 0x02
	#define RTC_DATA_RDY 0x01

	#define rtc_busy() (in_8(RTCBASE + RTC_CMD) & RTC_BUSY)
	#define rtc_data_available() (in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY)
	#define rtc_status() (in_8(RTCBASE + RTC_CMD))
	#define rtc_command(x) out_8(RTCBASE + RTC_CMD, (x))
	#define rtc_read_data() (in_8(RTCBASE + RTC_DATA))
	#define rtc_write_data(x) out_8(RTCBASE + RTC_DATA, (x))

	#define RTC_SETREG 0xe0
	#define RTC_WRITEREG 0xc2
	#define RTC_READREG 0xc3

	#define RTC_REG_SEC2 0
	#define RTC_REG_SEC1 1
	#define RTC_REG_MIN2 2
	#define RTC_REG_MIN1 3
	#define RTC_REG_HOUR2 4
	#define RTC_REG_HOUR1 5
	#define RTC_REG_WDAY 6
	#define RTC_REG_DAY2 7
	#define RTC_REG_DAY1 8
	#define RTC_REG_MON2 9
	#define RTC_REG_MON1 10
	#define RTC_REG_YEAR2 11
	#define RTC_REG_YEAR1 12

	#define RTC_HOUR1_24HMODE 0x8

	#define RTC_STAT_MASK 0xf0
	#define RTC_STAT_RDY 0x40

	static inline unsigned char hp300_rtc_read(unsigned char reg)
	{
	unsigned char s, ret;
	unsigned long flags;

	local_irq_save(flags);

	while (rtc_busy());
	rtc_command(RTC_SETREG);
	while (rtc_busy());
	rtc_write_data(reg);
	while (rtc_busy());
	rtc_command(RTC_READREG);

	do {
	while (!rtc_data_available());
	s = rtc_status();
	ret = rtc_read_data();
	} while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);

	local_irq_restore(flags);

	return ret;
	}

	static inline unsigned char hp300_rtc_write(unsigned char reg,
	unsigned char val)
	{
	unsigned char s, ret;
	unsigned long flags;

	local_irq_save(flags);

	while (rtc_busy());
	rtc_command(RTC_SETREG);
	while (rtc_busy());
	rtc_write_data((val << 4) \| reg);
	while (rtc_busy());
	rtc_command(RTC_WRITEREG);
	while (rtc_busy());
	rtc_command(RTC_READREG);

	do {
	while (!rtc_data_available());
	s = rtc_status();
	ret = rtc_read_data();
	} while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);

	local_irq_restore(flags);

	return ret;
	}

	static int hp300_hwclk(int op, struct rtc_time *t)
	{
	if (!op) { /* read */
	t->tm_sec = hp300_rtc_read(RTC_REG_SEC1) * 10 +
	hp300_rtc_read(RTC_REG_SEC2);
	t->tm_min = hp300_rtc_read(RTC_REG_MIN1) * 10 +
	hp300_rtc_read(RTC_REG_MIN2);
	t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 +
	hp300_rtc_read(RTC_REG_HOUR2);
	t->tm_wday = -1;
	t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 +
	hp300_rtc_read(RTC_REG_DAY2);
	t->tm_mon = hp300_rtc_read(RTC_REG_MON1) * 10 +
	hp300_rtc_read(RTC_REG_MON2) - 1;
	t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 +
	hp300_rtc_read(RTC_REG_YEAR2);
	if (t->tm_year <= 69)
	t->tm_year += 100;
	} else {
	hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10);
	hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10);
	hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10);
	hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10);
	hp300_rtc_write(RTC_REG_HOUR1,
	((t->tm_hour / 10) & 3) \| RTC_HOUR1_24HMODE);
	hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10);
	hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10);
	hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10);
	hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10);
	hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10);
	if (t->tm_year >= 100)
	t->tm_year -= 100;
	hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10);
	hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10);
	}

	return 0;
	}

	static unsigned int hp300_get_ss(void)
	{
	return hp300_rtc_read(RTC_REG_SEC1) * 10 +
	hp300_rtc_read(RTC_REG_SEC2);
	}

	static void __init hp300_init_IRQ(void)
	{
	}

	void __init config_hp300(void)
	{
	mach_sched_init = hp300_sched_init;
	mach_init_IRQ = hp300_init_IRQ;
	mach_get_model = hp300_get_model;
	arch_gettimeoffset = hp300_gettimeoffset;
	mach_hwclk = hp300_hwclk;
	mach_get_ss = hp300_get_ss;
	mach_reset = hp300_reset;
	#ifdef CONFIG_HEARTBEAT
	mach_heartbeat = hp300_pulse;
	#endif
	mach_max_dma_address = 0xffffffff;

	if (hp300_model >= HP_330 && hp300_model <= HP_433S &&
	hp300_model != HP_350) {
	pr_info("Detected HP9000 model %s\n",
	hp300_models[hp300_model-HP_320]);
	strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
	} else {
	panic("Unknown HP9000 Model");
	}
	#ifdef CONFIG_SERIAL_8250_CONSOLE
	hp300_setup_serial_console();
	#endif
	}