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17#include <linux/types.h>
18#include <linux/kernel.h>
19#include <linux/mm.h>
20#include <linux/seq_file.h>
21#include <linux/tty.h>
22#include <linux/console.h>
23#include <linux/linkage.h>
24#include <linux/init.h>
25#include <linux/major.h>
26#include <linux/genhd.h>
27#include <linux/rtc.h>
28#include <linux/interrupt.h>
29#include <linux/module.h>
30
31#include <asm/bootinfo.h>
32#include <asm/system.h>
33#include <asm/pgtable.h>
34#include <asm/setup.h>
35#include <asm/irq.h>
36#include <asm/traps.h>
37#include <asm/rtc.h>
38#include <asm/machdep.h>
39#include <asm/mvme16xhw.h>
40
41extern t_bdid mvme_bdid;
42
43static MK48T08ptr_t volatile rtc = (MK48T08ptr_t)MVME_RTC_BASE;
44
45static void mvme16x_get_model(char *model);
46extern void mvme16x_sched_init(irq_handler_t handler);
47extern unsigned long mvme16x_gettimeoffset (void);
48extern int mvme16x_hwclk (int, struct rtc_time *);
49extern int mvme16x_set_clock_mmss (unsigned long);
50extern void mvme16x_reset (void);
51
52int bcd2int (unsigned char b);
53
54
55
56
57static irq_handler_t tick_handler;
58
59
60unsigned short mvme16x_config;
61EXPORT_SYMBOL(mvme16x_config);
62
63
64int mvme16x_parse_bootinfo(const struct bi_record *bi)
65{
66 if (bi->tag == BI_VME_TYPE || bi->tag == BI_VME_BRDINFO)
67 return 0;
68 else
69 return 1;
70}
71
72void mvme16x_reset(void)
73{
74 printk ("\r\n\nCalled mvme16x_reset\r\n"
75 "\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r");
76
77
78 *(volatile char *)0xfff40107 = 0x80;
79}
80
81static void mvme16x_get_model(char *model)
82{
83 p_bdid p = &mvme_bdid;
84 char suf[4];
85
86 suf[1] = p->brdsuffix[0];
87 suf[2] = p->brdsuffix[1];
88 suf[3] = '\0';
89 suf[0] = suf[1] ? '-' : '\0';
90
91 sprintf(model, "Motorola MVME%x%s", p->brdno, suf);
92}
93
94
95static void mvme16x_get_hardware_list(struct seq_file *m)
96{
97 p_bdid p = &mvme_bdid;
98
99 if (p->brdno == 0x0162 || p->brdno == 0x0172)
100 {
101 unsigned char rev = *(unsigned char *)MVME162_VERSION_REG;
102
103 seq_printf (m, "VMEchip2 %spresent\n",
104 rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : "");
105 seq_printf (m, "SCSI interface %spresent\n",
106 rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : "");
107 seq_printf (m, "Ethernet i/f %spresent\n",
108 rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : "");
109 }
110}
111
112
113
114
115
116
117
118static void __init mvme16x_init_IRQ (void)
119{
120 m68k_setup_user_interrupt(VEC_USER, 192, NULL);
121}
122
123#define pcc2chip ((volatile u_char *)0xfff42000)
124#define PccSCCMICR 0x1d
125#define PccSCCTICR 0x1e
126#define PccSCCRICR 0x1f
127
128void __init config_mvme16x(void)
129{
130 p_bdid p = &mvme_bdid;
131 char id[40];
132
133 mach_max_dma_address = 0xffffffff;
134 mach_sched_init = mvme16x_sched_init;
135 mach_init_IRQ = mvme16x_init_IRQ;
136 mach_gettimeoffset = mvme16x_gettimeoffset;
137 mach_hwclk = mvme16x_hwclk;
138 mach_set_clock_mmss = mvme16x_set_clock_mmss;
139 mach_reset = mvme16x_reset;
140 mach_get_model = mvme16x_get_model;
141 mach_get_hardware_list = mvme16x_get_hardware_list;
142
143
144
145 if (strncmp("BDID", p->bdid, 4))
146 {
147 printk ("\n\nBug call .BRD_ID returned garbage - giving up\n\n");
148 while (1)
149 ;
150 }
151
152 if (vme_brdtype == 0)
153 vme_brdtype = p->brdno;
154
155 mvme16x_get_model(id);
156 printk ("\nBRD_ID: %s BUG %x.%x %02x/%02x/%02x\n", id, p->rev>>4,
157 p->rev&0xf, p->yr, p->mth, p->day);
158 if (p->brdno == 0x0162 || p->brdno == 0x172)
159 {
160 unsigned char rev = *(unsigned char *)MVME162_VERSION_REG;
161
162 mvme16x_config = rev | MVME16x_CONFIG_GOT_SCCA;
163
164 printk ("MVME%x Hardware status:\n", p->brdno);
165 printk (" CPU Type 68%s040\n",
166 rev & MVME16x_CONFIG_GOT_FPU ? "" : "LC");
167 printk (" CPU clock %dMHz\n",
168 rev & MVME16x_CONFIG_SPEED_32 ? 32 : 25);
169 printk (" VMEchip2 %spresent\n",
170 rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : "");
171 printk (" SCSI interface %spresent\n",
172 rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : "");
173 printk (" Ethernet interface %spresent\n",
174 rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : "");
175 }
176 else
177 {
178 mvme16x_config = MVME16x_CONFIG_GOT_LP | MVME16x_CONFIG_GOT_CD2401;
179
180
181
182
183 pcc2chip[PccSCCMICR] = 0x10;
184 pcc2chip[PccSCCTICR] = 0x10;
185 pcc2chip[PccSCCRICR] = 0x10;
186 }
187}
188
189static irqreturn_t mvme16x_abort_int (int irq, void *dev_id)
190{
191 p_bdid p = &mvme_bdid;
192 unsigned long *new = (unsigned long *)vectors;
193 unsigned long *old = (unsigned long *)0xffe00000;
194 volatile unsigned char uc, *ucp;
195
196 if (p->brdno == 0x0162 || p->brdno == 0x172)
197 {
198 ucp = (volatile unsigned char *)0xfff42043;
199 uc = *ucp | 8;
200 *ucp = uc;
201 }
202 else
203 {
204 *(volatile unsigned long *)0xfff40074 = 0x40000000;
205 }
206 *(new+4) = *(old+4);
207 *(new+9) = *(old+9);
208 *(new+47) = *(old+47);
209
210 if (p->brdno == 0x0162 || p->brdno == 0x172)
211 *(new+0x5e) = *(old+0x5e);
212 else
213 *(new+0x6e) = *(old+0x6e);
214 return IRQ_HANDLED;
215}
216
217static irqreturn_t mvme16x_timer_int (int irq, void *dev_id)
218{
219 *(volatile unsigned char *)0xfff4201b |= 8;
220 return tick_handler(irq, dev_id);
221}
222
223void mvme16x_sched_init (irq_handler_t timer_routine)
224{
225 p_bdid p = &mvme_bdid;
226 int irq;
227
228 tick_handler = timer_routine;
229
230 *(volatile unsigned long *)0xfff42008 = 0;
231 *(volatile unsigned long *)0xfff42004 = 10000;
232 *(volatile unsigned char *)0xfff42017 |= 3;
233 *(volatile unsigned char *)0xfff4201b = 0x16;
234 if (request_irq(MVME16x_IRQ_TIMER, mvme16x_timer_int, 0,
235 "timer", mvme16x_timer_int))
236 panic ("Couldn't register timer int");
237
238 if (p->brdno == 0x0162 || p->brdno == 0x172)
239 irq = MVME162_IRQ_ABORT;
240 else
241 irq = MVME167_IRQ_ABORT;
242 if (request_irq(irq, mvme16x_abort_int, 0,
243 "abort", mvme16x_abort_int))
244 panic ("Couldn't register abort int");
245}
246
247
248
249unsigned long mvme16x_gettimeoffset (void)
250{
251 return (*(volatile unsigned long *)0xfff42008);
252}
253
254int bcd2int (unsigned char b)
255{
256 return ((b>>4)*10 + (b&15));
257}
258
259int mvme16x_hwclk(int op, struct rtc_time *t)
260{
261#warning check me!
262 if (!op) {
263 rtc->ctrl = RTC_READ;
264 t->tm_year = bcd2int (rtc->bcd_year);
265 t->tm_mon = bcd2int (rtc->bcd_mth);
266 t->tm_mday = bcd2int (rtc->bcd_dom);
267 t->tm_hour = bcd2int (rtc->bcd_hr);
268 t->tm_min = bcd2int (rtc->bcd_min);
269 t->tm_sec = bcd2int (rtc->bcd_sec);
270 rtc->ctrl = 0;
271 }
272 return 0;
273}
274
275int mvme16x_set_clock_mmss (unsigned long nowtime)
276{
277 return 0;
278}
279
280
