Initial import

1 files changed, 276 insertions, 0 deletions

diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c
new file mode 100644
index 000000000..a9befe65a
--- /dev/null
+++ b/arch/m68k/hp300/config.c
@@ -0,0 +1,276 @@
+/*
+ *  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
+}