Commit | Line | Data |
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1da177e4 LT |
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/config.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/sched.h> | |
28 | #include <linux/pci.h> | |
29 | #include <linux/interrupt.h> | |
30 | #include <linux/tty.h> | |
31 | #include <linux/serial.h> | |
32 | #include <linux/serial_core.h> | |
33 | ||
34 | #include <asm/time.h> | |
35 | #include <asm/cpu.h> | |
36 | #include <asm/bootinfo.h> | |
37 | #include <asm/irq.h> | |
38 | #include <asm/serial.h> | |
39 | #include <asm/lasat/lasat.h> | |
40 | #include <asm/lasat/serial.h> | |
41 | ||
42 | #ifdef CONFIG_PICVUE | |
43 | #include <linux/notifier.h> | |
44 | #endif | |
45 | ||
46 | #include "ds1603.h" | |
47 | #include <asm/lasat/ds1603.h> | |
48 | #include <asm/lasat/picvue.h> | |
49 | #include <asm/lasat/eeprom.h> | |
50 | ||
51 | #include "prom.h" | |
52 | ||
53 | int lasat_command_line = 0; | |
54 | void lasatint_init(void); | |
55 | ||
56 | extern void lasat_reboot_setup(void); | |
57 | extern void pcisetup(void); | |
58 | extern void edhac_init(void *, void *, void *); | |
59 | extern void addrflt_init(void); | |
60 | ||
61 | struct lasat_misc lasat_misc_info[N_MACHTYPES] = { | |
62 | {(void *)KSEG1ADDR(0x1c840000), (void *)KSEG1ADDR(0x1c800000), 2}, | |
63 | {(void *)KSEG1ADDR(0x11080000), (void *)KSEG1ADDR(0x11000000), 6} | |
64 | }; | |
65 | ||
66 | struct lasat_misc *lasat_misc = NULL; | |
67 | ||
68 | #ifdef CONFIG_DS1603 | |
69 | static struct ds_defs ds_defs[N_MACHTYPES] = { | |
70 | { (void *)DS1603_REG_100, (void *)DS1603_REG_100, | |
71 | DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100, | |
72 | DS1603_DATA_SHIFT_100, 0, 0 }, | |
73 | { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200, | |
74 | DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200, | |
75 | DS1603_DATA_READ_SHIFT_200, 1, 2000 } | |
76 | }; | |
77 | #endif | |
78 | ||
79 | #ifdef CONFIG_PICVUE | |
80 | #include "picvue.h" | |
81 | static struct pvc_defs pvc_defs[N_MACHTYPES] = { | |
82 | { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100, | |
83 | PVC_E_100, PVC_RW_100, PVC_RS_100 }, | |
84 | { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200, | |
85 | PVC_E_200, PVC_RW_200, PVC_RS_200 } | |
86 | }; | |
87 | #endif | |
88 | ||
89 | static int lasat_panic_display(struct notifier_block *this, | |
90 | unsigned long event, void *ptr) | |
91 | { | |
92 | #ifdef CONFIG_PICVUE | |
93 | unsigned char *string = ptr; | |
94 | if (string == NULL) | |
95 | string = "Kernel Panic"; | |
96 | pvc_dump_string(string); | |
97 | #endif | |
98 | return NOTIFY_DONE; | |
99 | } | |
100 | ||
101 | static int lasat_panic_prom_monitor(struct notifier_block *this, | |
102 | unsigned long event, void *ptr) | |
103 | { | |
104 | prom_monitor(); | |
105 | return NOTIFY_DONE; | |
106 | } | |
107 | ||
108 | static struct notifier_block lasat_panic_block[] = | |
109 | { | |
110 | { lasat_panic_display, NULL, INT_MAX }, | |
111 | { lasat_panic_prom_monitor, NULL, INT_MIN } | |
112 | }; | |
113 | ||
114 | static void lasat_time_init(void) | |
115 | { | |
116 | mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2; | |
117 | } | |
118 | ||
119 | static void lasat_timer_setup(struct irqaction *irq) | |
120 | { | |
121 | ||
122 | write_c0_compare( | |
123 | read_c0_count() + | |
124 | mips_hpt_frequency / HZ); | |
125 | change_c0_status(ST0_IM, IE_IRQ0 | IE_IRQ5); | |
126 | } | |
127 | ||
128 | #define DYNAMIC_SERIAL_INIT | |
129 | #ifdef DYNAMIC_SERIAL_INIT | |
130 | void __init serial_init(void) | |
131 | { | |
132 | #ifdef CONFIG_SERIAL_8250 | |
133 | struct uart_port s; | |
134 | ||
135 | memset(&s, 0, sizeof(s)); | |
136 | ||
137 | s.flags = STD_COM_FLAGS; | |
138 | s.iotype = SERIAL_IO_MEM; | |
139 | ||
140 | if (mips_machtype == MACH_LASAT_100) { | |
141 | s.uartclk = LASAT_BASE_BAUD_100 * 16; | |
142 | s.irq = LASATINT_UART_100; | |
143 | s.regshift = LASAT_UART_REGS_SHIFT_100; | |
144 | s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_100); | |
145 | } else { | |
146 | s.uartclk = LASAT_BASE_BAUD_200 * 16; | |
147 | s.irq = LASATINT_UART_200; | |
148 | s.regshift = LASAT_UART_REGS_SHIFT_200; | |
149 | s.membase = (char *)KSEG1ADDR(LASAT_UART_REGS_BASE_200); | |
150 | } | |
151 | ||
152 | if (early_serial_setup(&s) != 0) | |
153 | printk(KERN_ERR "Serial setup failed!\n"); | |
154 | #endif | |
155 | } | |
156 | #endif | |
157 | ||
158 | static int __init lasat_setup(void) | |
159 | { | |
160 | int i; | |
161 | lasat_misc = &lasat_misc_info[mips_machtype]; | |
162 | #ifdef CONFIG_PICVUE | |
163 | picvue = &pvc_defs[mips_machtype]; | |
164 | #endif | |
165 | ||
166 | /* Set up panic notifier */ | |
167 | for (i = 0; i < sizeof(lasat_panic_block) / sizeof(struct notifier_block); i++) | |
168 | notifier_chain_register(&panic_notifier_list, &lasat_panic_block[i]); | |
169 | ||
170 | lasat_reboot_setup(); | |
171 | ||
172 | board_time_init = lasat_time_init; | |
173 | board_timer_setup = lasat_timer_setup; | |
174 | ||
175 | #ifdef CONFIG_DS1603 | |
176 | ds1603 = &ds_defs[mips_machtype]; | |
177 | rtc_get_time = ds1603_read; | |
178 | rtc_set_time = ds1603_set; | |
179 | #endif | |
180 | ||
181 | #ifdef DYNAMIC_SERIAL_INIT | |
182 | serial_init(); | |
183 | #endif | |
184 | /* Switch from prom exception handler to normal mode */ | |
185 | change_c0_status(ST0_BEV,0); | |
186 | ||
187 | prom_printf("Lasat specific initialization complete\n"); | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
192 | early_initcall(lasat_setup); |