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Release 4.14 arch/m68k/hp300/config.c

Directory: arch/m68k/hp300
// SPDX-License-Identifier: GPL-2.0
/*
 *  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 <linux/rtc.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 "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; }

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

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

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#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; }

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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; }

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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; }

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

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static void __init hp300_init_IRQ(void) { }

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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 }

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Total105100.00%6100.00%


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Arnd Bergmann30.24%18.33%
Greg Kroah-Hartman10.08%18.33%
Stephen Warren10.08%18.33%
Fabian Frederick10.08%18.33%
Total1230100.00%12100.00%
Directory: arch/m68k/hp300
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