diff options
Diffstat (limited to 'arch/sh/boards/sh03')
| -rw-r--r-- | arch/sh/boards/sh03/Makefile | 6 | ||||
| -rw-r--r-- | arch/sh/boards/sh03/led.c | 49 | ||||
| -rw-r--r-- | arch/sh/boards/sh03/rtc.c | 144 | ||||
| -rw-r--r-- | arch/sh/boards/sh03/setup.c | 72 |
4 files changed, 271 insertions, 0 deletions
diff --git a/arch/sh/boards/sh03/Makefile b/arch/sh/boards/sh03/Makefile new file mode 100644 index 000000000000..321be50e36a5 --- /dev/null +++ b/arch/sh/boards/sh03/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for the Interface (CTP/PCI-SH03) specific parts of the kernel +# + +obj-y := setup.o rtc.o +obj-$(CONFIG_HEARTBEAT) += led.o diff --git a/arch/sh/boards/sh03/led.c b/arch/sh/boards/sh03/led.c new file mode 100644 index 000000000000..c851b0bec80f --- /dev/null +++ b/arch/sh/boards/sh03/led.c @@ -0,0 +1,49 @@ +/* + * linux/arch/sh/boards/sh03/led.c + * + * Copyright (C) 2004 Saito.K Interface Corporation. + * + * This file contains Interface CTP/PCI-SH03 specific LED code. + */ + +#include <linux/config.h> +#include <linux/sched.h> + +/* Cycle the LED's in the clasic Knightrider/Sun pattern */ +void heartbeat_sh03(void) +{ + static unsigned int cnt = 0, period = 0; + volatile unsigned char* p = (volatile unsigned char*)0xa0800000; + static unsigned bit = 0, up = 1; + + cnt += 1; + if (cnt < period) { + return; + } + + cnt = 0; + + /* Go through the points (roughly!): + * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 + */ + period = 110 - ( (300<<FSHIFT)/ + ((avenrun[0]/5) + (3<<FSHIFT)) ); + + if (up) { + if (bit == 7) { + bit--; + up=0; + } else { + bit ++; + } + } else { + if (bit == 0) { + bit++; + up=1; + } else { + bit--; + } + } + *p = 1<<bit; + +} diff --git a/arch/sh/boards/sh03/rtc.c b/arch/sh/boards/sh03/rtc.c new file mode 100644 index 000000000000..cbeca7037ba5 --- /dev/null +++ b/arch/sh/boards/sh03/rtc.c @@ -0,0 +1,144 @@ +/* + * linux/arch/sh/boards/sh03/rtc.c -- CTP/PCI-SH03 on-chip RTC support + * + * Copyright (C) 2004 Saito.K & Jeanne(ksaito@interface.co.jp) + * + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/time.h> +#include <asm/io.h> +#include <linux/rtc.h> +#include <linux/spinlock.h> + +#define RTC_BASE 0xb0000000 +#define RTC_SEC1 (RTC_BASE + 0) +#define RTC_SEC10 (RTC_BASE + 1) +#define RTC_MIN1 (RTC_BASE + 2) +#define RTC_MIN10 (RTC_BASE + 3) +#define RTC_HOU1 (RTC_BASE + 4) +#define RTC_HOU10 (RTC_BASE + 5) +#define RTC_WEE1 (RTC_BASE + 6) +#define RTC_DAY1 (RTC_BASE + 7) +#define RTC_DAY10 (RTC_BASE + 8) +#define RTC_MON1 (RTC_BASE + 9) +#define RTC_MON10 (RTC_BASE + 10) +#define RTC_YEA1 (RTC_BASE + 11) +#define RTC_YEA10 (RTC_BASE + 12) +#define RTC_YEA100 (RTC_BASE + 13) +#define RTC_YEA1000 (RTC_BASE + 14) +#define RTC_CTL (RTC_BASE + 15) +#define RTC_BUSY 1 +#define RTC_STOP 2 + +#ifndef BCD_TO_BIN +#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) +#endif + +#ifndef BIN_TO_BCD +#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) +#endif + +extern void (*rtc_get_time)(struct timespec *); +extern int (*rtc_set_time)(const time_t); +extern spinlock_t rtc_lock; + +unsigned long get_cmos_time(void) +{ + unsigned int year, mon, day, hour, min, sec; + int i; + + spin_lock(&rtc_lock); + again: + for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ + if (!(ctrl_inb(RTC_CTL) & RTC_BUSY)) + break; + do { + sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10; + min = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10; + hour = (ctrl_inb(RTC_HOU1) & 0xf) + (ctrl_inb(RTC_HOU10) & 0xf) * 10; + day = (ctrl_inb(RTC_DAY1) & 0xf) + (ctrl_inb(RTC_DAY10) & 0xf) * 10; + mon = (ctrl_inb(RTC_MON1) & 0xf) + (ctrl_inb(RTC_MON10) & 0xf) * 10; + year = (ctrl_inb(RTC_YEA1) & 0xf) + (ctrl_inb(RTC_YEA10) & 0xf) * 10 + + (ctrl_inb(RTC_YEA100 ) & 0xf) * 100 + + (ctrl_inb(RTC_YEA1000) & 0xf) * 1000; + } while (sec != (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10); + if (year == 0 || mon < 1 || mon > 12 || day > 31 || day < 1 || + hour > 23 || min > 59 || sec > 59) { + printk(KERN_ERR + "SH-03 RTC: invalid value, resetting to 1 Jan 2000\n"); + printk("year=%d, mon=%d, day=%d, hour=%d, min=%d, sec=%d\n", + year, mon, day, hour, min, sec); + + ctrl_outb(0, RTC_SEC1); ctrl_outb(0, RTC_SEC10); + ctrl_outb(0, RTC_MIN1); ctrl_outb(0, RTC_MIN10); + ctrl_outb(0, RTC_HOU1); ctrl_outb(0, RTC_HOU10); + ctrl_outb(6, RTC_WEE1); + ctrl_outb(1, RTC_DAY1); ctrl_outb(0, RTC_DAY10); + ctrl_outb(1, RTC_MON1); ctrl_outb(0, RTC_MON10); + ctrl_outb(0, RTC_YEA1); ctrl_outb(0, RTC_YEA10); + ctrl_outb(0, RTC_YEA100); + ctrl_outb(2, RTC_YEA1000); + ctrl_outb(0, RTC_CTL); + goto again; + } + + spin_unlock(&rtc_lock); + return mktime(year, mon, day, hour, min, sec); +} + +void sh03_rtc_gettimeofday(struct timespec *tv) +{ + + tv->tv_sec = get_cmos_time(); + tv->tv_nsec = 0; +} + +static int set_rtc_mmss(unsigned long nowtime) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + int i; + + /* gets recalled with irq locally disabled */ + spin_lock(&rtc_lock); + for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ + if (!(ctrl_inb(RTC_CTL) & RTC_BUSY)) + break; + cmos_minutes = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10; + real_seconds = nowtime % 60; + real_minutes = nowtime / 60; + if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) + real_minutes += 30; /* correct for half hour time zone */ + real_minutes %= 60; + + if (abs(real_minutes - cmos_minutes) < 30) { + ctrl_outb(real_seconds % 10, RTC_SEC1); + ctrl_outb(real_seconds / 10, RTC_SEC10); + ctrl_outb(real_minutes % 10, RTC_MIN1); + ctrl_outb(real_minutes / 10, RTC_MIN10); + } else { + printk(KERN_WARNING + "set_rtc_mmss: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + spin_unlock(&rtc_lock); + + return retval; +} + +int sh03_rtc_settimeofday(const time_t secs) +{ + unsigned long nowtime = secs; + + return set_rtc_mmss(nowtime); +} + +void sh03_time_init(void) +{ + rtc_get_time = sh03_rtc_gettimeofday; + rtc_set_time = sh03_rtc_settimeofday; +} diff --git a/arch/sh/boards/sh03/setup.c b/arch/sh/boards/sh03/setup.c new file mode 100644 index 000000000000..d2a08ca5eb85 --- /dev/null +++ b/arch/sh/boards/sh03/setup.c @@ -0,0 +1,72 @@ +/* + * linux/arch/sh/boards/sh03/setup.c + * + * Copyright (C) 2004 Interface Co.,Ltd. Saito.K + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/hdreg.h> +#include <linux/ide.h> +#include <asm/io.h> +#include <asm/sh03/io.h> +#include <asm/sh03/sh03.h> +#include <asm/addrspace.h> +#include "../../drivers/pci/pci-sh7751.h" + +extern void (*board_time_init)(void); + +const char *get_system_type(void) +{ + return "Interface CTP/PCI-SH03)"; +} + +void init_sh03_IRQ(void) +{ + ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); + + make_ipr_irq(IRL0_IRQ, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY); + make_ipr_irq(IRL1_IRQ, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY); + make_ipr_irq(IRL2_IRQ, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY); + make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); +} + +extern void *cf_io_base; + +unsigned long sh03_isa_port2addr(unsigned long port) +{ + if (PXSEG(port)) + return port; + /* CompactFlash (IDE) */ + if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) { + return (unsigned long)cf_io_base + port; + } + return port + SH7751_PCI_IO_BASE; +} + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_sh03 __initmv = { + .mv_nr_irqs = 48, + .mv_isa_port2addr = sh03_isa_port2addr, + .mv_init_irq = init_sh03_IRQ, + +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_sh03, +#endif +}; + +ALIAS_MV(sh03) + +/* arch/sh/boards/sh03/rtc.c */ +void sh03_time_init(void); + +int __init platform_setup(void) +{ + board_time_init = sh03_time_init; + return 0; +} |