diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/sh/boards/snapgear/setup.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/sh/boards/snapgear/setup.c')
-rw-r--r-- | arch/sh/boards/snapgear/setup.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c new file mode 100644 index 00000000000..08fc98342a0 --- /dev/null +++ b/arch/sh/boards/snapgear/setup.c | |||
@@ -0,0 +1,216 @@ | |||
1 | /****************************************************************************/ | ||
2 | /* | ||
3 | * linux/arch/sh/boards/snapgear/setup.c | ||
4 | * | ||
5 | * Copyright (C) 2002 David McCullough <davidm@snapgear.com> | ||
6 | * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> | ||
7 | * | ||
8 | * Based on files with the following comments: | ||
9 | * | ||
10 | * Copyright (C) 2000 Kazumoto Kojima | ||
11 | * | ||
12 | * Modified for 7751 Solution Engine by | ||
13 | * Ian da Silva and Jeremy Siegel, 2001. | ||
14 | */ | ||
15 | /****************************************************************************/ | ||
16 | |||
17 | #include <linux/config.h> | ||
18 | #include <linux/init.h> | ||
19 | #include <linux/irq.h> | ||
20 | #include <linux/interrupt.h> | ||
21 | #include <linux/timer.h> | ||
22 | #include <linux/delay.h> | ||
23 | #include <linux/module.h> | ||
24 | #include <linux/sched.h> | ||
25 | |||
26 | #include <asm/machvec.h> | ||
27 | #include <asm/mach/io.h> | ||
28 | #include <asm/irq.h> | ||
29 | #include <asm/io.h> | ||
30 | #include <asm/cpu/timer.h> | ||
31 | |||
32 | extern void (*board_time_init)(void); | ||
33 | extern void secureedge5410_rtc_init(void); | ||
34 | extern void pcibios_init(void); | ||
35 | |||
36 | /****************************************************************************/ | ||
37 | /* | ||
38 | * EraseConfig handling functions | ||
39 | */ | ||
40 | |||
41 | static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id, struct pt_regs *regs) | ||
42 | { | ||
43 | volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000; | ||
44 | |||
45 | printk("SnapGear: erase switch interrupt!\n"); | ||
46 | |||
47 | return IRQ_HANDLED; | ||
48 | } | ||
49 | |||
50 | static int __init eraseconfig_init(void) | ||
51 | { | ||
52 | printk("SnapGear: EraseConfig init\n"); | ||
53 | /* Setup "EraseConfig" switch on external IRQ 0 */ | ||
54 | if (request_irq(IRL0_IRQ, eraseconfig_interrupt, SA_INTERRUPT, | ||
55 | "Erase Config", NULL)) | ||
56 | printk("SnapGear: failed to register IRQ%d for Reset witch\n", | ||
57 | IRL0_IRQ); | ||
58 | else | ||
59 | printk("SnapGear: registered EraseConfig switch on IRQ%d\n", | ||
60 | IRL0_IRQ); | ||
61 | return(0); | ||
62 | } | ||
63 | |||
64 | module_init(eraseconfig_init); | ||
65 | |||
66 | /****************************************************************************/ | ||
67 | /* | ||
68 | * Initialize IRQ setting | ||
69 | * | ||
70 | * IRL0 = erase switch | ||
71 | * IRL1 = eth0 | ||
72 | * IRL2 = eth1 | ||
73 | * IRL3 = crypto | ||
74 | */ | ||
75 | |||
76 | static void __init init_snapgear_IRQ(void) | ||
77 | { | ||
78 | /* enable individual interrupt mode for externals */ | ||
79 | ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); | ||
80 | |||
81 | printk("Setup SnapGear IRQ/IPR ...\n"); | ||
82 | |||
83 | make_ipr_irq(IRL0_IRQ, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY); | ||
84 | make_ipr_irq(IRL1_IRQ, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY); | ||
85 | make_ipr_irq(IRL2_IRQ, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY); | ||
86 | make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); | ||
87 | } | ||
88 | |||
89 | /****************************************************************************/ | ||
90 | /* | ||
91 | * Fast poll interrupt simulator. | ||
92 | */ | ||
93 | |||
94 | /* | ||
95 | * Leave all of the fast timer/fast poll stuff commented out for now, since | ||
96 | * it's not clear whether it actually works or not. Since it wasn't being used | ||
97 | * at all in 2.4, we'll assume it's not sane for 2.6 either.. -- PFM | ||
98 | */ | ||
99 | #if 0 | ||
100 | #define FAST_POLL 1000 | ||
101 | //#define FAST_POLL_INTR | ||
102 | |||
103 | #define FASTTIMER_IRQ 17 | ||
104 | #define FASTTIMER_IPR_ADDR INTC_IPRA | ||
105 | #define FASTTIMER_IPR_POS 2 | ||
106 | #define FASTTIMER_PRIORITY 3 | ||
107 | |||
108 | #ifdef FAST_POLL_INTR | ||
109 | #define TMU1_TCR_INIT 0x0020 | ||
110 | #else | ||
111 | #define TMU1_TCR_INIT 0 | ||
112 | #endif | ||
113 | #define TMU_TSTR_INIT 1 | ||
114 | #define TMU1_TCR_CALIB 0x0000 | ||
115 | |||
116 | |||
117 | #ifdef FAST_POLL_INTR | ||
118 | static void fast_timer_irq(int irq, void *dev_instance, struct pt_regs *regs) | ||
119 | { | ||
120 | unsigned long timer_status; | ||
121 | timer_status = ctrl_inw(TMU1_TCR); | ||
122 | timer_status &= ~0x100; | ||
123 | ctrl_outw(timer_status, TMU1_TCR); | ||
124 | } | ||
125 | #endif | ||
126 | |||
127 | /* | ||
128 | * return the current ticks on the fast timer | ||
129 | */ | ||
130 | |||
131 | unsigned long fast_timer_count(void) | ||
132 | { | ||
133 | return(ctrl_inl(TMU1_TCNT)); | ||
134 | } | ||
135 | |||
136 | /* | ||
137 | * setup a fast timer for profiling etc etc | ||
138 | */ | ||
139 | |||
140 | static void setup_fast_timer() | ||
141 | { | ||
142 | unsigned long interval; | ||
143 | |||
144 | #ifdef FAST_POLL_INTR | ||
145 | interval = (current_cpu_data.module_clock/4 + FAST_POLL/2) / FAST_POLL; | ||
146 | |||
147 | make_ipr_irq(FASTTIMER_IRQ, FASTTIMER_IPR_ADDR, FASTTIMER_IPR_POS, | ||
148 | FASTTIMER_PRIORITY); | ||
149 | |||
150 | printk("SnapGear: %dHz fast timer on IRQ %d\n",FAST_POLL,FASTTIMER_IRQ); | ||
151 | |||
152 | if (request_irq(FASTTIMER_IRQ, fast_timer_irq, 0, "SnapGear fast timer", | ||
153 | NULL) != 0) | ||
154 | printk("%s(%d): request_irq() failed?\n", __FILE__, __LINE__); | ||
155 | #else | ||
156 | printk("SnapGear: fast timer running\n",FAST_POLL,FASTTIMER_IRQ); | ||
157 | interval = 0xffffffff; | ||
158 | #endif | ||
159 | |||
160 | ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x2, TMU_TSTR); /* disable timer 1 */ | ||
161 | ctrl_outw(TMU1_TCR_INIT, TMU1_TCR); | ||
162 | ctrl_outl(interval, TMU1_TCOR); | ||
163 | ctrl_outl(interval, TMU1_TCNT); | ||
164 | ctrl_outb(ctrl_inb(TMU_TSTR) | 0x2, TMU_TSTR); /* enable timer 1 */ | ||
165 | |||
166 | printk("Timer count 1 = 0x%x\n", fast_timer_count()); | ||
167 | udelay(1000); | ||
168 | printk("Timer count 2 = 0x%x\n", fast_timer_count()); | ||
169 | } | ||
170 | #endif | ||
171 | |||
172 | /****************************************************************************/ | ||
173 | |||
174 | const char *get_system_type(void) | ||
175 | { | ||
176 | return "SnapGear SecureEdge5410"; | ||
177 | } | ||
178 | |||
179 | /* | ||
180 | * The Machine Vector | ||
181 | */ | ||
182 | |||
183 | struct sh_machine_vector mv_snapgear __initmv = { | ||
184 | .mv_nr_irqs = 72, | ||
185 | |||
186 | .mv_inb = snapgear_inb, | ||
187 | .mv_inw = snapgear_inw, | ||
188 | .mv_inl = snapgear_inl, | ||
189 | .mv_outb = snapgear_outb, | ||
190 | .mv_outw = snapgear_outw, | ||
191 | .mv_outl = snapgear_outl, | ||
192 | |||
193 | .mv_inb_p = snapgear_inb_p, | ||
194 | .mv_inw_p = snapgear_inw, | ||
195 | .mv_inl_p = snapgear_inl, | ||
196 | .mv_outb_p = snapgear_outb_p, | ||
197 | .mv_outw_p = snapgear_outw, | ||
198 | .mv_outl_p = snapgear_outl, | ||
199 | |||
200 | .mv_isa_port2addr = snapgear_isa_port2addr, | ||
201 | |||
202 | .mv_init_irq = init_snapgear_IRQ, | ||
203 | }; | ||
204 | ALIAS_MV(snapgear) | ||
205 | |||
206 | /* | ||
207 | * Initialize the board | ||
208 | */ | ||
209 | |||
210 | int __init platform_setup(void) | ||
211 | { | ||
212 | board_time_init = secureedge5410_rtc_init; | ||
213 | |||
214 | return 0; | ||
215 | } | ||
216 | |||