[linux-2.6-block.git] / arch / m68k / hp300 / config.c

/*
 *  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/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 unsigned long *data = record->data;

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

	case BI_HP300_UART_SCODE:
		hp300_uart_scode = *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) {
		printk(KERN_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
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/m68k/hp300/config.c
	3	*
	4	* Copyright (C) 1998 Philip Blundell <philb@gnu.org>
	5	*
	6	* This file contains the HP300-specific initialisation code. It gets
	7	* called by setup.c.
	8	*/
	9
1da177e4 LT	10	#include <linux/module.h>
	11	#include <linux/init.h>
	12	#include <linux/string.h>
	13	#include <linux/kernel.h>
	14	#include <linux/console.h>
	15
	16	#include <asm/bootinfo.h>
4c3c522b	17	#include <asm/bootinfo-hp300.h>
1da177e4 LT	18	#include <asm/machdep.h>
	19	#include <asm/blinken.h>
	20	#include <asm/io.h> /* readb() and writeb() */
	21	#include <asm/hp300hw.h>
	22	#include <asm/rtc.h>
	23
1da177e4 LT	24	#include "time.h"
	25
	26	unsigned long hp300_model;
	27	unsigned long hp300_uart_scode = -1;
f808b865 GU	28	unsigned char hp300_ledstate;
f808b865 GU	29	EXPORT_SYMBOL(hp300_ledstate);
1da177e4 LT	30
	31	static char s_hp330[] __initdata = "330";
	32	static char s_hp340[] __initdata = "340";
	33	static char s_hp345[] __initdata = "345";
	34	static char s_hp360[] __initdata = "360";
	35	static char s_hp370[] __initdata = "370";
	36	static char s_hp375[] __initdata = "375";
	37	static char s_hp380[] __initdata = "380";
	38	static char s_hp385[] __initdata = "385";
	39	static char s_hp400[] __initdata = "400";
	40	static char s_hp425t[] __initdata = "425t";
	41	static char s_hp425s[] __initdata = "425s";
	42	static char s_hp425e[] __initdata = "425e";
	43	static char s_hp433t[] __initdata = "433t";
	44	static char s_hp433s[] __initdata = "433s";
	45	static char *hp300_models[] __initdata = {
	46	[HP_320] = NULL,
	47	[HP_330] = s_hp330,
	48	[HP_340] = s_hp340,
	49	[HP_345] = s_hp345,
	50	[HP_350] = NULL,
	51	[HP_360] = s_hp360,
	52	[HP_370] = s_hp370,
	53	[HP_375] = s_hp375,
	54	[HP_380] = s_hp380,
	55	[HP_385] = s_hp385,
	56	[HP_400] = s_hp400,
	57	[HP_425T] = s_hp425t,
	58	[HP_425S] = s_hp425s,
	59	[HP_425E] = s_hp425e,
	60	[HP_433T] = s_hp433t,
	61	[HP_433S] = s_hp433s,
	62	};
	63
	64	static char hp300_model_name[13] = "HP9000/";
	65
	66	extern void hp300_reset(void);
1da177e4 LT	67	#ifdef CONFIG_SERIAL_8250_CONSOLE
	68	extern int hp300_setup_serial_console(void) __init;
	69	#endif
	70
	71	int __init hp300_parse_bootinfo(const struct bi_record *record)
	72	{
	73	int unknown = 0;
	74	const unsigned long *data = record->data;
	75
	76	switch (record->tag) {
	77	case BI_HP300_MODEL:
	78	hp300_model = *data;
	79	break;
	80
	81	case BI_HP300_UART_SCODE:
	82	hp300_uart_scode = *data;
	83	break;
	84
	85	case BI_HP300_UART_ADDR:
	86	/* serial port address: ignored here */
	87	break;
	88
	89	default:
	90	unknown = 1;
	91	}
	92
	93	return unknown;
	94	}
	95
	96	#ifdef CONFIG_HEARTBEAT
	97	static void hp300_pulse(int x)
	98	{
	99	if (x)
	100	blinken_leds(0x10, 0);
	101	else
	102	blinken_leds(0, 0x10);
	103	}
	104	#endif
	105
	106	static void hp300_get_model(char *model)
	107	{
	108	strcpy(model, hp300_model_name);
	109	}
	110
	111	#define RTCBASE 0xf0420000
	112	#define RTC_DATA 0x1
	113	#define RTC_CMD 0x3
	114
	115	#define RTC_BUSY 0x02
	116	#define RTC_DATA_RDY 0x01
	117
	118	#define rtc_busy() (in_8(RTCBASE + RTC_CMD) & RTC_BUSY)
	119	#define rtc_data_available() (in_8(RTCBASE + RTC_CMD) & RTC_DATA_RDY)
	120	#define rtc_status() (in_8(RTCBASE + RTC_CMD))
	121	#define rtc_command(x) out_8(RTCBASE + RTC_CMD, (x))
	122	#define rtc_read_data() (in_8(RTCBASE + RTC_DATA))
	123	#define rtc_write_data(x) out_8(RTCBASE + RTC_DATA, (x))
	124
	125	#define RTC_SETREG 0xe0
	126	#define RTC_WRITEREG 0xc2
	127	#define RTC_READREG 0xc3
	128
	129	#define RTC_REG_SEC2 0
	130	#define RTC_REG_SEC1 1
131	#define RTC_REG_MIN2 2
132	#define RTC_REG_MIN1 3
133	#define RTC_REG_HOUR2 4
134	#define RTC_REG_HOUR1 5
135	#define RTC_REG_WDAY 6
136	#define RTC_REG_DAY2 7
137	#define RTC_REG_DAY1 8
138	#define RTC_REG_MON2 9
139	#define RTC_REG_MON1 10
140	#define RTC_REG_YEAR2 11
141	#define RTC_REG_YEAR1 12
142
143	#define RTC_HOUR1_24HMODE 0x8
144
145	#define RTC_STAT_MASK 0xf0
146	#define RTC_STAT_RDY 0x40
147
148	static inline unsigned char hp300_rtc_read(unsigned char reg)
149	{
150	unsigned char s, ret;
151	unsigned long flags;
152
153	local_irq_save(flags);
154
155	while (rtc_busy());
156	rtc_command(RTC_SETREG);
157	while (rtc_busy());
158	rtc_write_data(reg);
159	while (rtc_busy());
160	rtc_command(RTC_READREG);
161
162	do {
163	while (!rtc_data_available());
164	s = rtc_status();
165	ret = rtc_read_data();
166	} while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
167
168	local_irq_restore(flags);
169
170	return ret;
171	}
172
173	static inline unsigned char hp300_rtc_write(unsigned char reg,
174	unsigned char val)
175	{
176	unsigned char s, ret;
177	unsigned long flags;
178
179	local_irq_save(flags);
180
181	while (rtc_busy());
182	rtc_command(RTC_SETREG);
183	while (rtc_busy());
184	rtc_write_data((val << 4) \| reg);
185	while (rtc_busy());
186	rtc_command(RTC_WRITEREG);
187	while (rtc_busy());
188	rtc_command(RTC_READREG);
189
190	do {
191	while (!rtc_data_available());
192	s = rtc_status();
193	ret = rtc_read_data();
194	} while ((s & RTC_STAT_MASK) != RTC_STAT_RDY);
195
196	local_irq_restore(flags);
197
198	return ret;
199	}
200
201	static int hp300_hwclk(int op, struct rtc_time *t)
202	{
203	if (!op) { /* read */
204	t->tm_sec = hp300_rtc_read(RTC_REG_SEC1) * 10 +
205	hp300_rtc_read(RTC_REG_SEC2);
206	t->tm_min = hp300_rtc_read(RTC_REG_MIN1) * 10 +
207	hp300_rtc_read(RTC_REG_MIN2);
208	t->tm_hour = (hp300_rtc_read(RTC_REG_HOUR1) & 3) * 10 +
209	hp300_rtc_read(RTC_REG_HOUR2);
210	t->tm_wday = -1;
211	t->tm_mday = hp300_rtc_read(RTC_REG_DAY1) * 10 +
212	hp300_rtc_read(RTC_REG_DAY2);
213	t->tm_mon = hp300_rtc_read(RTC_REG_MON1) * 10 +
214	hp300_rtc_read(RTC_REG_MON2) - 1;
215	t->tm_year = hp300_rtc_read(RTC_REG_YEAR1) * 10 +
216	hp300_rtc_read(RTC_REG_YEAR2);
217	if (t->tm_year <= 69)
218	t->tm_year += 100;
219	} else {
220	hp300_rtc_write(RTC_REG_SEC1, t->tm_sec / 10);
221	hp300_rtc_write(RTC_REG_SEC2, t->tm_sec % 10);
222	hp300_rtc_write(RTC_REG_MIN1, t->tm_min / 10);
223	hp300_rtc_write(RTC_REG_MIN2, t->tm_min % 10);
224	hp300_rtc_write(RTC_REG_HOUR1,
225	((t->tm_hour / 10) & 3) \| RTC_HOUR1_24HMODE);
226	hp300_rtc_write(RTC_REG_HOUR2, t->tm_hour % 10);
227	hp300_rtc_write(RTC_REG_DAY1, t->tm_mday / 10);
228	hp300_rtc_write(RTC_REG_DAY2, t->tm_mday % 10);
229	hp300_rtc_write(RTC_REG_MON1, (t->tm_mon + 1) / 10);
230	hp300_rtc_write(RTC_REG_MON2, (t->tm_mon + 1) % 10);
231	if (t->tm_year >= 100)
232	t->tm_year -= 100;
233	hp300_rtc_write(RTC_REG_YEAR1, t->tm_year / 10);
234	hp300_rtc_write(RTC_REG_YEAR2, t->tm_year % 10);
235	}
236
237	return 0;
238	}
239
240	static unsigned int hp300_get_ss(void)
241	{
242	return hp300_rtc_read(RTC_REG_SEC1) * 10 +
243	hp300_rtc_read(RTC_REG_SEC2);
244	}
245
35353bb8 RZ	246	static void __init hp300_init_IRQ(void)
	247	{
	248	}
	249
1da177e4 LT	250	void __init config_hp300(void)
	251	{
	252	mach_sched_init = hp300_sched_init;
	253	mach_init_IRQ = hp300_init_IRQ;
1da177e4	254	mach_get_model = hp300_get_model;
c8d5ba18	255	arch_gettimeoffset = hp300_gettimeoffset;
1da177e4 LT	256	mach_hwclk = hp300_hwclk;
	257	mach_get_ss = hp300_get_ss;
	258	mach_reset = hp300_reset;
	259	#ifdef CONFIG_HEARTBEAT
	260	mach_heartbeat = hp300_pulse;
1da177e4 LT	261	#endif
	262	mach_max_dma_address = 0xffffffff;
	263
	264	if (hp300_model >= HP_330 && hp300_model <= HP_433S && hp300_model != HP_350) {
	265	printk(KERN_INFO "Detected HP9000 model %s\n", hp300_models[hp300_model-HP_320]);
	266	strcat(hp300_model_name, hp300_models[hp300_model-HP_320]);
	267	}
	268	else {
	269	panic("Unknown HP9000 Model");
	270	}
	271	#ifdef CONFIG_SERIAL_8250_CONSOLE
	272	hp300_setup_serial_console();
	273	#endif
	274	}