Commit | Line | Data |
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1da177e4 | 1 | /* |
f137e463 | 2 | * Copyright (C) 2000, 2001, 2002, 2003, 2004 Broadcom Corporation |
1da177e4 LT |
3 | * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Setup code for the SWARM board | |
22 | */ | |
23 | ||
24 | #include <linux/config.h> | |
25 | #include <linux/spinlock.h> | |
26 | #include <linux/mm.h> | |
27 | #include <linux/bootmem.h> | |
28 | #include <linux/blkdev.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/kernel.h> | |
31 | #include <linux/tty.h> | |
32 | #include <linux/initrd.h> | |
33 | ||
34 | #include <asm/irq.h> | |
35 | #include <asm/io.h> | |
36 | #include <asm/bootinfo.h> | |
37 | #include <asm/mipsregs.h> | |
38 | #include <asm/reboot.h> | |
39 | #include <asm/time.h> | |
40 | #include <asm/traps.h> | |
41 | #include <asm/sibyte/sb1250.h> | |
f137e463 AI |
42 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
43 | #include <asm/sibyte/bcm1480_regs.h> | |
44 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
1da177e4 | 45 | #include <asm/sibyte/sb1250_regs.h> |
f137e463 AI |
46 | #else |
47 | #error invalid SiByte board configuation | |
48 | #endif | |
1da177e4 LT |
49 | #include <asm/sibyte/sb1250_genbus.h> |
50 | #include <asm/sibyte/board.h> | |
51 | ||
f137e463 AI |
52 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
53 | extern void bcm1480_setup(void); | |
54 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
1da177e4 | 55 | extern void sb1250_setup(void); |
f137e463 AI |
56 | #else |
57 | #error invalid SiByte board configuation | |
58 | #endif | |
1da177e4 LT |
59 | |
60 | extern int xicor_probe(void); | |
61 | extern int xicor_set_time(unsigned long); | |
62 | extern unsigned long xicor_get_time(void); | |
63 | ||
64 | extern int m41t81_probe(void); | |
65 | extern int m41t81_set_time(unsigned long); | |
66 | extern unsigned long m41t81_get_time(void); | |
67 | ||
68 | const char *get_system_type(void) | |
69 | { | |
70 | return "SiByte " SIBYTE_BOARD_NAME; | |
71 | } | |
72 | ||
a904f747 RB |
73 | void __init swarm_time_init(void) |
74 | { | |
75 | /* Setup HPT */ | |
76 | sb1250_hpt_setup(); | |
77 | } | |
78 | ||
1da177e4 LT |
79 | void __init swarm_timer_setup(struct irqaction *irq) |
80 | { | |
81 | /* | |
82 | * we don't set up irqaction, because we will deliver timer | |
83 | * interrupts through low-level (direct) meachanism. | |
84 | */ | |
85 | ||
86 | /* We only need to setup the generic timer */ | |
f137e463 AI |
87 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
88 | bcm1480_time_init(); | |
89 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
90 | sb1250_time_init(); | |
91 | #else | |
92 | #error invalid SiByte board configuation | |
93 | #endif | |
1da177e4 LT |
94 | } |
95 | ||
96 | int swarm_be_handler(struct pt_regs *regs, int is_fixup) | |
97 | { | |
98 | if (!is_fixup && (regs->cp0_cause & 4)) { | |
99 | /* Data bus error - print PA */ | |
6aaf7786 | 100 | printk("DBE physical address: %010Lx\n", |
1da177e4 | 101 | __read_64bit_c0_register($26, 1)); |
1da177e4 LT |
102 | } |
103 | return (is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL); | |
104 | } | |
105 | ||
c83cfc9c | 106 | void __init plat_setup(void) |
1da177e4 | 107 | { |
f137e463 AI |
108 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
109 | bcm1480_setup(); | |
110 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
1da177e4 | 111 | sb1250_setup(); |
f137e463 AI |
112 | #else |
113 | #error invalid SiByte board configuation | |
114 | #endif | |
1da177e4 LT |
115 | |
116 | panic_timeout = 5; /* For debug. */ | |
117 | ||
a904f747 | 118 | board_time_init = swarm_time_init; |
1da177e4 LT |
119 | board_timer_setup = swarm_timer_setup; |
120 | board_be_handler = swarm_be_handler; | |
121 | ||
122 | if (xicor_probe()) { | |
123 | printk("swarm setup: Xicor 1241 RTC detected.\n"); | |
124 | rtc_get_time = xicor_get_time; | |
125 | rtc_set_time = xicor_set_time; | |
126 | } | |
42a3b4f2 | 127 | |
1da177e4 LT |
128 | if (m41t81_probe()) { |
129 | printk("swarm setup: M41T81 RTC detected.\n"); | |
130 | rtc_get_time = m41t81_get_time; | |
131 | rtc_set_time = m41t81_set_time; | |
132 | } | |
133 | ||
134 | printk("This kernel optimized for " | |
135 | #ifdef CONFIG_SIMULATION | |
136 | "simulation" | |
137 | #else | |
138 | "board" | |
139 | #endif | |
140 | " runs " | |
141 | #ifdef CONFIG_SIBYTE_CFE | |
142 | "with" | |
143 | #else | |
144 | "without" | |
145 | #endif | |
146 | " CFE\n"); | |
147 | ||
148 | #ifdef CONFIG_VT | |
149 | screen_info = (struct screen_info) { | |
150 | 0, 0, /* orig-x, orig-y */ | |
151 | 0, /* unused */ | |
152 | 52, /* orig_video_page */ | |
153 | 3, /* orig_video_mode */ | |
154 | 80, /* orig_video_cols */ | |
155 | 4626, 3, 9, /* unused, ega_bx, unused */ | |
156 | 25, /* orig_video_lines */ | |
157 | 0x22, /* orig_video_isVGA */ | |
158 | 16 /* orig_video_points */ | |
159 | }; | |
160 | /* XXXKW for CFE, get lines/cols from environment */ | |
161 | #endif | |
1da177e4 LT |
162 | } |
163 | ||
1da177e4 LT |
164 | #ifdef LEDS_PHYS |
165 | ||
166 | #ifdef CONFIG_SIBYTE_CARMEL | |
167 | /* XXXKW need to detect Monterey/LittleSur/etc */ | |
168 | #undef LEDS_PHYS | |
169 | #define LEDS_PHYS MLEDS_PHYS | |
170 | #endif | |
171 | ||
172 | #define setled(index, c) \ | |
173 | ((unsigned char *)(IOADDR(LEDS_PHYS)+0x20))[(3-(index))<<3] = (c) | |
174 | void setleds(char *str) | |
175 | { | |
176 | int i; | |
177 | for (i = 0; i < 4; i++) { | |
178 | if (!str[i]) { | |
179 | setled(i, ' '); | |
180 | } else { | |
181 | setled(i, str[i]); | |
182 | } | |
183 | } | |
184 | } | |
185 | #endif |