Commit | Line | Data |
---|---|---|
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 | ||
1da177e4 LT |
24 | #include <linux/spinlock.h> |
25 | #include <linux/mm.h> | |
26 | #include <linux/bootmem.h> | |
27 | #include <linux/blkdev.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/kernel.h> | |
894673ee | 30 | #include <linux/screen_info.h> |
1da177e4 LT |
31 | #include <linux/initrd.h> |
32 | ||
33 | #include <asm/irq.h> | |
34 | #include <asm/io.h> | |
35 | #include <asm/bootinfo.h> | |
36 | #include <asm/mipsregs.h> | |
37 | #include <asm/reboot.h> | |
38 | #include <asm/time.h> | |
39 | #include <asm/traps.h> | |
40 | #include <asm/sibyte/sb1250.h> | |
f137e463 AI |
41 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
42 | #include <asm/sibyte/bcm1480_regs.h> | |
43 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
1da177e4 | 44 | #include <asm/sibyte/sb1250_regs.h> |
f137e463 AI |
45 | #else |
46 | #error invalid SiByte board configuation | |
47 | #endif | |
1da177e4 LT |
48 | #include <asm/sibyte/sb1250_genbus.h> |
49 | #include <asm/sibyte/board.h> | |
50 | ||
f137e463 AI |
51 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
52 | extern void bcm1480_setup(void); | |
53 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
1da177e4 | 54 | extern void sb1250_setup(void); |
f137e463 AI |
55 | #else |
56 | #error invalid SiByte board configuation | |
57 | #endif | |
1da177e4 LT |
58 | |
59 | extern int xicor_probe(void); | |
60 | extern int xicor_set_time(unsigned long); | |
61 | extern unsigned long xicor_get_time(void); | |
62 | ||
63 | extern int m41t81_probe(void); | |
64 | extern int m41t81_set_time(unsigned long); | |
65 | extern unsigned long m41t81_get_time(void); | |
66 | ||
67 | const char *get_system_type(void) | |
68 | { | |
69 | return "SiByte " SIBYTE_BOARD_NAME; | |
70 | } | |
71 | ||
a904f747 RB |
72 | void __init swarm_time_init(void) |
73 | { | |
b75d4c1d | 74 | #if defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) |
a904f747 RB |
75 | /* Setup HPT */ |
76 | sb1250_hpt_setup(); | |
b75d4c1d | 77 | #endif |
a904f747 RB |
78 | } |
79 | ||
54d0a216 | 80 | void __init plat_timer_setup(struct irqaction *irq) |
1da177e4 LT |
81 | { |
82 | /* | |
83 | * we don't set up irqaction, because we will deliver timer | |
84 | * interrupts through low-level (direct) meachanism. | |
85 | */ | |
86 | ||
87 | /* We only need to setup the generic timer */ | |
f137e463 AI |
88 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
89 | bcm1480_time_init(); | |
90 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
91 | sb1250_time_init(); | |
92 | #else | |
93 | #error invalid SiByte board configuation | |
94 | #endif | |
1da177e4 LT |
95 | } |
96 | ||
97 | int swarm_be_handler(struct pt_regs *regs, int is_fixup) | |
98 | { | |
99 | if (!is_fixup && (regs->cp0_cause & 4)) { | |
100 | /* Data bus error - print PA */ | |
6aaf7786 | 101 | printk("DBE physical address: %010Lx\n", |
1da177e4 | 102 | __read_64bit_c0_register($26, 1)); |
1da177e4 LT |
103 | } |
104 | return (is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL); | |
105 | } | |
106 | ||
2925aba4 | 107 | void __init plat_mem_setup(void) |
1da177e4 | 108 | { |
f137e463 AI |
109 | #if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80) |
110 | bcm1480_setup(); | |
111 | #elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X) | |
1da177e4 | 112 | sb1250_setup(); |
f137e463 AI |
113 | #else |
114 | #error invalid SiByte board configuation | |
115 | #endif | |
1da177e4 LT |
116 | |
117 | panic_timeout = 5; /* For debug. */ | |
118 | ||
a904f747 | 119 | board_time_init = swarm_time_init; |
1da177e4 LT |
120 | board_be_handler = swarm_be_handler; |
121 | ||
122 | if (xicor_probe()) { | |
123 | printk("swarm setup: Xicor 1241 RTC detected.\n"); | |
d23ee8fe YY |
124 | rtc_mips_get_time = xicor_get_time; |
125 | rtc_mips_set_time = xicor_set_time; | |
1da177e4 | 126 | } |
42a3b4f2 | 127 | |
1da177e4 LT |
128 | if (m41t81_probe()) { |
129 | printk("swarm setup: M41T81 RTC detected.\n"); | |
d23ee8fe YY |
130 | rtc_mips_get_time = m41t81_get_time; |
131 | rtc_mips_set_time = m41t81_set_time; | |
1da177e4 LT |
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 |