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-rw-r--r--arch/sh/boards/sh03/Makefile6
-rw-r--r--arch/sh/boards/sh03/led.c49
-rw-r--r--arch/sh/boards/sh03/rtc.c144
-rw-r--r--arch/sh/boards/sh03/setup.c72
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 @@
1#
2# Makefile for the Interface (CTP/PCI-SH03) specific parts of the kernel
3#
4
5obj-y := setup.o rtc.o
6obj-$(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 @@
1/*
2 * linux/arch/sh/boards/sh03/led.c
3 *
4 * Copyright (C) 2004 Saito.K Interface Corporation.
5 *
6 * This file contains Interface CTP/PCI-SH03 specific LED code.
7 */
8
9#include <linux/config.h>
10#include <linux/sched.h>
11
12/* Cycle the LED's in the clasic Knightrider/Sun pattern */
13void heartbeat_sh03(void)
14{
15 static unsigned int cnt = 0, period = 0;
16 volatile unsigned char* p = (volatile unsigned char*)0xa0800000;
17 static unsigned bit = 0, up = 1;
18
19 cnt += 1;
20 if (cnt < period) {
21 return;
22 }
23
24 cnt = 0;
25
26 /* Go through the points (roughly!):
27 * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
28 */
29 period = 110 - ( (300<<FSHIFT)/
30 ((avenrun[0]/5) + (3<<FSHIFT)) );
31
32 if (up) {
33 if (bit == 7) {
34 bit--;
35 up=0;
36 } else {
37 bit ++;
38 }
39 } else {
40 if (bit == 0) {
41 bit++;
42 up=1;
43 } else {
44 bit--;
45 }
46 }
47 *p = 1<<bit;
48
49}
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 @@
1/*
2 * linux/arch/sh/boards/sh03/rtc.c -- CTP/PCI-SH03 on-chip RTC support
3 *
4 * Copyright (C) 2004 Saito.K & Jeanne(ksaito@interface.co.jp)
5 *
6 */
7
8#include <linux/init.h>
9#include <linux/kernel.h>
10#include <linux/sched.h>
11#include <linux/time.h>
12#include <asm/io.h>
13#include <linux/rtc.h>
14#include <linux/spinlock.h>
15
16#define RTC_BASE 0xb0000000
17#define RTC_SEC1 (RTC_BASE + 0)
18#define RTC_SEC10 (RTC_BASE + 1)
19#define RTC_MIN1 (RTC_BASE + 2)
20#define RTC_MIN10 (RTC_BASE + 3)
21#define RTC_HOU1 (RTC_BASE + 4)
22#define RTC_HOU10 (RTC_BASE + 5)
23#define RTC_WEE1 (RTC_BASE + 6)
24#define RTC_DAY1 (RTC_BASE + 7)
25#define RTC_DAY10 (RTC_BASE + 8)
26#define RTC_MON1 (RTC_BASE + 9)
27#define RTC_MON10 (RTC_BASE + 10)
28#define RTC_YEA1 (RTC_BASE + 11)
29#define RTC_YEA10 (RTC_BASE + 12)
30#define RTC_YEA100 (RTC_BASE + 13)
31#define RTC_YEA1000 (RTC_BASE + 14)
32#define RTC_CTL (RTC_BASE + 15)
33#define RTC_BUSY 1
34#define RTC_STOP 2
35
36#ifndef BCD_TO_BIN
37#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
38#endif
39
40#ifndef BIN_TO_BCD
41#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
42#endif
43
44extern void (*rtc_get_time)(struct timespec *);
45extern int (*rtc_set_time)(const time_t);
46extern spinlock_t rtc_lock;
47
48unsigned long get_cmos_time(void)
49{
50 unsigned int year, mon, day, hour, min, sec;
51 int i;
52
53 spin_lock(&rtc_lock);
54 again:
55 for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
56 if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
57 break;
58 do {
59 sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10;
60 min = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10;
61 hour = (ctrl_inb(RTC_HOU1) & 0xf) + (ctrl_inb(RTC_HOU10) & 0xf) * 10;
62 day = (ctrl_inb(RTC_DAY1) & 0xf) + (ctrl_inb(RTC_DAY10) & 0xf) * 10;
63 mon = (ctrl_inb(RTC_MON1) & 0xf) + (ctrl_inb(RTC_MON10) & 0xf) * 10;
64 year = (ctrl_inb(RTC_YEA1) & 0xf) + (ctrl_inb(RTC_YEA10) & 0xf) * 10
65 + (ctrl_inb(RTC_YEA100 ) & 0xf) * 100
66 + (ctrl_inb(RTC_YEA1000) & 0xf) * 1000;
67 } while (sec != (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10);
68 if (year == 0 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
69 hour > 23 || min > 59 || sec > 59) {
70 printk(KERN_ERR
71 "SH-03 RTC: invalid value, resetting to 1 Jan 2000\n");
72 printk("year=%d, mon=%d, day=%d, hour=%d, min=%d, sec=%d\n",
73 year, mon, day, hour, min, sec);
74
75 ctrl_outb(0, RTC_SEC1); ctrl_outb(0, RTC_SEC10);
76 ctrl_outb(0, RTC_MIN1); ctrl_outb(0, RTC_MIN10);
77 ctrl_outb(0, RTC_HOU1); ctrl_outb(0, RTC_HOU10);
78 ctrl_outb(6, RTC_WEE1);
79 ctrl_outb(1, RTC_DAY1); ctrl_outb(0, RTC_DAY10);
80 ctrl_outb(1, RTC_MON1); ctrl_outb(0, RTC_MON10);
81 ctrl_outb(0, RTC_YEA1); ctrl_outb(0, RTC_YEA10);
82 ctrl_outb(0, RTC_YEA100);
83 ctrl_outb(2, RTC_YEA1000);
84 ctrl_outb(0, RTC_CTL);
85 goto again;
86 }
87
88 spin_unlock(&rtc_lock);
89 return mktime(year, mon, day, hour, min, sec);
90}
91
92void sh03_rtc_gettimeofday(struct timespec *tv)
93{
94
95 tv->tv_sec = get_cmos_time();
96 tv->tv_nsec = 0;
97}
98
99static int set_rtc_mmss(unsigned long nowtime)
100{
101 int retval = 0;
102 int real_seconds, real_minutes, cmos_minutes;
103 int i;
104
105 /* gets recalled with irq locally disabled */
106 spin_lock(&rtc_lock);
107 for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
108 if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
109 break;
110 cmos_minutes = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10;
111 real_seconds = nowtime % 60;
112 real_minutes = nowtime / 60;
113 if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
114 real_minutes += 30; /* correct for half hour time zone */
115 real_minutes %= 60;
116
117 if (abs(real_minutes - cmos_minutes) < 30) {
118 ctrl_outb(real_seconds % 10, RTC_SEC1);
119 ctrl_outb(real_seconds / 10, RTC_SEC10);
120 ctrl_outb(real_minutes % 10, RTC_MIN1);
121 ctrl_outb(real_minutes / 10, RTC_MIN10);
122 } else {
123 printk(KERN_WARNING
124 "set_rtc_mmss: can't update from %d to %d\n",
125 cmos_minutes, real_minutes);
126 retval = -1;
127 }
128 spin_unlock(&rtc_lock);
129
130 return retval;
131}
132
133int sh03_rtc_settimeofday(const time_t secs)
134{
135 unsigned long nowtime = secs;
136
137 return set_rtc_mmss(nowtime);
138}
139
140void sh03_time_init(void)
141{
142 rtc_get_time = sh03_rtc_gettimeofday;
143 rtc_set_time = sh03_rtc_settimeofday;
144}
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 @@
1/*
2 * linux/arch/sh/boards/sh03/setup.c
3 *
4 * Copyright (C) 2004 Interface Co.,Ltd. Saito.K
5 *
6 */
7
8#include <linux/config.h>
9#include <linux/init.h>
10#include <linux/irq.h>
11#include <linux/hdreg.h>
12#include <linux/ide.h>
13#include <asm/io.h>
14#include <asm/sh03/io.h>
15#include <asm/sh03/sh03.h>
16#include <asm/addrspace.h>
17#include "../../drivers/pci/pci-sh7751.h"
18
19extern void (*board_time_init)(void);
20
21const char *get_system_type(void)
22{
23 return "Interface CTP/PCI-SH03)";
24}
25
26void init_sh03_IRQ(void)
27{
28 ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
29
30 make_ipr_irq(IRL0_IRQ, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY);
31 make_ipr_irq(IRL1_IRQ, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY);
32 make_ipr_irq(IRL2_IRQ, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY);
33 make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY);
34}
35
36extern void *cf_io_base;
37
38unsigned long sh03_isa_port2addr(unsigned long port)
39{
40 if (PXSEG(port))
41 return port;
42 /* CompactFlash (IDE) */
43 if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) {
44 return (unsigned long)cf_io_base + port;
45 }
46 return port + SH7751_PCI_IO_BASE;
47}
48
49/*
50 * The Machine Vector
51 */
52
53struct sh_machine_vector mv_sh03 __initmv = {
54 .mv_nr_irqs = 48,
55 .mv_isa_port2addr = sh03_isa_port2addr,
56 .mv_init_irq = init_sh03_IRQ,
57
58#ifdef CONFIG_HEARTBEAT
59 .mv_heartbeat = heartbeat_sh03,
60#endif
61};
62
63ALIAS_MV(sh03)
64
65/* arch/sh/boards/sh03/rtc.c */
66void sh03_time_init(void);
67
68int __init platform_setup(void)
69{
70 board_time_init = sh03_time_init;
71 return 0;
72}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 10:08:57 -0500