1 /*
2 * Carsten Langgaard, carstenl@mips.com
3 * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved.
4 *
5 * Thomas Horsten <thh@lasat.com>
6 * Copyright (C) 2000 LASAT Networks A/S.
7 *
8 * Brian Murphy <brian@murphy.dk>
9 *
10 * This program is free software; you can distribute it and/or modify it
11 * under the terms of the GNU General Public License (Version 2) as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 * for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
22 *
23 * Lasat specific setup.
24 */
25 #include <linux/init.h>
26 #include <linux/sched.h>
27 #include <linux/pci.h>
28 #include <linux/interrupt.h>
29 #include <linux/tty.h>
30
31 #include <asm/time.h>
32 #include <asm/cpu.h>
33 #include <asm/bootinfo.h>
34 #include <asm/irq.h>
35 #include <asm/lasat/lasat.h>
36 #include <asm/lasat/serial.h>
37
38 #ifdef CONFIG_PICVUE
39 #include <linux/notifier.h>
40 #endif
41
42 #include "ds1603.h"
43 #include <asm/lasat/ds1603.h>
44 #include <asm/lasat/picvue.h>
45 #include <asm/lasat/eeprom.h>
46
47 #include "prom.h"
48
49 int lasat_command_line;
50 void lasatint_init(void);
51
52 extern void lasat_reboot_setup(void);
53 extern void pcisetup(void);
54 extern void edhac_init(void *, void *, void *);
55 extern void addrflt_init(void);
56
57 struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
58 {
59 .reset_reg = (void *)KSEG1ADDR(0x1c840000),
60 .flash_wp_reg = (void *)KSEG1ADDR(0x1c800000), 2
61 }, {
62 .reset_reg = (void *)KSEG1ADDR(0x11080000),
63 .flash_wp_reg = (void *)KSEG1ADDR(0x11000000), 6
64 }
65 };
66
67 struct lasat_misc *lasat_misc;
68
69 #ifdef CONFIG_DS1603
70 static struct ds_defs ds_defs[N_MACHTYPES] = {
71 { (void *)DS1603_REG_100, (void *)DS1603_REG_100,
72 DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
73 DS1603_DATA_SHIFT_100, 0, 0 },
74 { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
75 DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
76 DS1603_DATA_READ_SHIFT_200, 1, 2000 }
77 };
78 #endif
79
80 #ifdef CONFIG_PICVUE
81 #include "picvue.h"
82 static struct pvc_defs pvc_defs[N_MACHTYPES] = {
83 { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
84 PVC_E_100, PVC_RW_100, PVC_RS_100 },
85 { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
86 PVC_E_200, PVC_RW_200, PVC_RS_200 }
87 };
88 #endif
89
lasat_panic_display(struct notifier_block * this,unsigned long event,void * ptr)90 static int lasat_panic_display(struct notifier_block *this,
91 unsigned long event, void *ptr)
92 {
93 #ifdef CONFIG_PICVUE
94 unsigned char *string = ptr;
95 if (string == NULL)
96 string = "Kernel Panic";
97 pvc_dump_string(string);
98 #endif
99 return NOTIFY_DONE;
100 }
101
lasat_panic_prom_monitor(struct notifier_block * this,unsigned long event,void * ptr)102 static int lasat_panic_prom_monitor(struct notifier_block *this,
103 unsigned long event, void *ptr)
104 {
105 prom_monitor();
106 return NOTIFY_DONE;
107 }
108
109 static struct notifier_block lasat_panic_block[] =
110 {
111 {
112 .notifier_call = lasat_panic_display,
113 .priority = INT_MAX
114 }, {
115 .notifier_call = lasat_panic_prom_monitor,
116 .priority = INT_MIN
117 }
118 };
119
plat_time_init(void)120 void __init plat_time_init(void)
121 {
122 mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2;
123
124 change_c0_status(ST0_IM, IE_IRQ0);
125 }
126
plat_mem_setup(void)127 void __init plat_mem_setup(void)
128 {
129 int i;
130 int lasat_type = IS_LASAT_200() ? 1 : 0;
131
132 lasat_misc = &lasat_misc_info[lasat_type];
133 #ifdef CONFIG_PICVUE
134 picvue = &pvc_defs[lasat_type];
135 #endif
136
137 /* Set up panic notifier */
138 for (i = 0; i < ARRAY_SIZE(lasat_panic_block); i++)
139 atomic_notifier_chain_register(&panic_notifier_list,
140 &lasat_panic_block[i]);
141
142 lasat_reboot_setup();
143
144 #ifdef CONFIG_DS1603
145 ds1603 = &ds_defs[lasat_type];
146 #endif
147
148 #ifdef DYNAMIC_SERIAL_INIT
149 serial_init();
150 #endif
151
152 pr_info("Lasat specific initialization complete\n");
153 }
154