~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/m68k/hp300/config.c

Version: ~ [ linux-5.8-rc5 ] ~ [ linux-5.7.8 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.51 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.132 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.188 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.230 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.230 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp