diff options
Diffstat (limited to 'arch/m68k/68000/m68VZ328.c')
-rw-r--r-- | arch/m68k/68000/m68VZ328.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/arch/m68k/68000/m68VZ328.c b/arch/m68k/68000/m68VZ328.c new file mode 100644 index 000000000000..0e5e5a10a021 --- /dev/null +++ b/arch/m68k/68000/m68VZ328.c | |||
@@ -0,0 +1,190 @@ | |||
1 | /***************************************************************************/ | ||
2 | |||
3 | /* | ||
4 | * m68VZ328.c - 68VZ328 specific config | ||
5 | * | ||
6 | * Copyright (C) 1993 Hamish Macdonald | ||
7 | * Copyright (C) 1999 D. Jeff Dionne | ||
8 | * Copyright (C) 2001 Georges Menie, Ken Desmet | ||
9 | * | ||
10 | * This file is subject to the terms and conditions of the GNU General Public | ||
11 | * License. See the file COPYING in the main directory of this archive | ||
12 | * for more details. | ||
13 | */ | ||
14 | |||
15 | /***************************************************************************/ | ||
16 | |||
17 | #include <linux/init.h> | ||
18 | #include <linux/types.h> | ||
19 | #include <linux/kernel.h> | ||
20 | #include <linux/kd.h> | ||
21 | #include <linux/netdevice.h> | ||
22 | #include <linux/interrupt.h> | ||
23 | #include <linux/irq.h> | ||
24 | #include <linux/rtc.h> | ||
25 | |||
26 | #include <asm/pgtable.h> | ||
27 | #include <asm/machdep.h> | ||
28 | #include <asm/MC68VZ328.h> | ||
29 | #include <asm/bootstd.h> | ||
30 | |||
31 | #ifdef CONFIG_INIT_LCD | ||
32 | #include "bootlogo-vz.h" | ||
33 | #endif | ||
34 | |||
35 | /***************************************************************************/ | ||
36 | |||
37 | int m68328_hwclk(int set, struct rtc_time *t); | ||
38 | |||
39 | /***************************************************************************/ | ||
40 | /* Init Drangon Engine hardware */ | ||
41 | /***************************************************************************/ | ||
42 | #if defined(CONFIG_DRAGEN2) | ||
43 | |||
44 | static void m68vz328_reset(void) | ||
45 | { | ||
46 | local_irq_disable(); | ||
47 | |||
48 | #ifdef CONFIG_INIT_LCD | ||
49 | PBDATA |= 0x20; /* disable CCFL light */ | ||
50 | PKDATA |= 0x4; /* disable LCD controller */ | ||
51 | LCKCON = 0; | ||
52 | #endif | ||
53 | |||
54 | __asm__ __volatile__( | ||
55 | "reset\n\t" | ||
56 | "moveal #0x04000000, %a0\n\t" | ||
57 | "moveal 0(%a0), %sp\n\t" | ||
58 | "moveal 4(%a0), %a0\n\t" | ||
59 | "jmp (%a0)" | ||
60 | ); | ||
61 | } | ||
62 | |||
63 | static void __init init_hardware(char *command, int size) | ||
64 | { | ||
65 | #ifdef CONFIG_DIRECT_IO_ACCESS | ||
66 | SCR = 0x10; /* allow user access to internal registers */ | ||
67 | #endif | ||
68 | |||
69 | /* CSGB Init */ | ||
70 | CSGBB = 0x4000; | ||
71 | CSB = 0x1a1; | ||
72 | |||
73 | /* CS8900 init */ | ||
74 | /* PK3: hardware sleep function pin, active low */ | ||
75 | PKSEL |= PK(3); /* select pin as I/O */ | ||
76 | PKDIR |= PK(3); /* select pin as output */ | ||
77 | PKDATA |= PK(3); /* set pin high */ | ||
78 | |||
79 | /* PF5: hardware reset function pin, active high */ | ||
80 | PFSEL |= PF(5); /* select pin as I/O */ | ||
81 | PFDIR |= PF(5); /* select pin as output */ | ||
82 | PFDATA &= ~PF(5); /* set pin low */ | ||
83 | |||
84 | /* cs8900 hardware reset */ | ||
85 | PFDATA |= PF(5); | ||
86 | { int i; for (i = 0; i < 32000; ++i); } | ||
87 | PFDATA &= ~PF(5); | ||
88 | |||
89 | /* INT1 enable (cs8900 IRQ) */ | ||
90 | PDPOL &= ~PD(1); /* active high signal */ | ||
91 | PDIQEG &= ~PD(1); | ||
92 | PDIRQEN |= PD(1); /* IRQ enabled */ | ||
93 | |||
94 | #ifdef CONFIG_INIT_LCD | ||
95 | /* initialize LCD controller */ | ||
96 | LSSA = (long) screen_bits; | ||
97 | LVPW = 0x14; | ||
98 | LXMAX = 0x140; | ||
99 | LYMAX = 0xef; | ||
100 | LRRA = 0; | ||
101 | LPXCD = 3; | ||
102 | LPICF = 0x08; | ||
103 | LPOLCF = 0; | ||
104 | LCKCON = 0x80; | ||
105 | PCPDEN = 0xff; | ||
106 | PCSEL = 0; | ||
107 | |||
108 | /* Enable LCD controller */ | ||
109 | PKDIR |= 0x4; | ||
110 | PKSEL |= 0x4; | ||
111 | PKDATA &= ~0x4; | ||
112 | |||
113 | /* Enable CCFL backlighting circuit */ | ||
114 | PBDIR |= 0x20; | ||
115 | PBSEL |= 0x20; | ||
116 | PBDATA &= ~0x20; | ||
117 | |||
118 | /* contrast control register */ | ||
119 | PFDIR |= 0x1; | ||
120 | PFSEL &= ~0x1; | ||
121 | PWMR = 0x037F; | ||
122 | #endif | ||
123 | } | ||
124 | |||
125 | /***************************************************************************/ | ||
126 | /* Init RT-Control uCdimm hardware */ | ||
127 | /***************************************************************************/ | ||
128 | #elif defined(CONFIG_UCDIMM) | ||
129 | |||
130 | static void m68vz328_reset(void) | ||
131 | { | ||
132 | local_irq_disable(); | ||
133 | asm volatile ( | ||
134 | "moveal #0x10c00000, %a0;\n\t" | ||
135 | "moveb #0, 0xFFFFF300;\n\t" | ||
136 | "moveal 0(%a0), %sp;\n\t" | ||
137 | "moveal 4(%a0), %a0;\n\t" | ||
138 | "jmp (%a0);\n" | ||
139 | ); | ||
140 | } | ||
141 | |||
142 | unsigned char *cs8900a_hwaddr; | ||
143 | static int errno; | ||
144 | |||
145 | _bsc0(char *, getserialnum) | ||
146 | _bsc1(unsigned char *, gethwaddr, int, a) | ||
147 | _bsc1(char *, getbenv, char *, a) | ||
148 | |||
149 | static void __init init_hardware(char *command, int size) | ||
150 | { | ||
151 | char *p; | ||
152 | |||
153 | printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum()); | ||
154 | p = cs8900a_hwaddr = gethwaddr(0); | ||
155 | printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", | ||
156 | p[0], p[1], p[2], p[3], p[4], p[5]); | ||
157 | p = getbenv("APPEND"); | ||
158 | if (p) | ||
159 | strcpy(p, command); | ||
160 | else | ||
161 | command[0] = 0; | ||
162 | } | ||
163 | |||
164 | /***************************************************************************/ | ||
165 | #else | ||
166 | |||
167 | static void m68vz328_reset(void) | ||
168 | { | ||
169 | } | ||
170 | |||
171 | static void __init init_hardware(char *command, int size) | ||
172 | { | ||
173 | } | ||
174 | |||
175 | /***************************************************************************/ | ||
176 | #endif | ||
177 | /***************************************************************************/ | ||
178 | |||
179 | void __init config_BSP(char *command, int size) | ||
180 | { | ||
181 | printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n"); | ||
182 | |||
183 | init_hardware(command, size); | ||
184 | |||
185 | mach_sched_init = hw_timer_init; | ||
186 | mach_hwclk = m68328_hwclk; | ||
187 | mach_reset = m68vz328_reset; | ||
188 | } | ||
189 | |||
190 | /***************************************************************************/ | ||