aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sh/boards/snapgear/setup.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/boards/snapgear/setup.c')
-rw-r--r--arch/sh/boards/snapgear/setup.c115
1 files changed, 8 insertions, 107 deletions
diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c
index f1f7c70c9402..f5e98c56b530 100644
--- a/arch/sh/boards/snapgear/setup.c
+++ b/arch/sh/boards/snapgear/setup.c
@@ -1,5 +1,4 @@
1/****************************************************************************/ 1/*
2/*
3 * linux/arch/sh/boards/snapgear/setup.c 2 * linux/arch/sh/boards/snapgear/setup.c
4 * 3 *
5 * Copyright (C) 2002 David McCullough <davidm@snapgear.com> 4 * Copyright (C) 2002 David McCullough <davidm@snapgear.com>
@@ -12,8 +11,6 @@
12 * Modified for 7751 Solution Engine by 11 * Modified for 7751 Solution Engine by
13 * Ian da Silva and Jeremy Siegel, 2001. 12 * Ian da Silva and Jeremy Siegel, 2001.
14 */ 13 */
15/****************************************************************************/
16
17#include <linux/init.h> 14#include <linux/init.h>
18#include <linux/irq.h> 15#include <linux/irq.h>
19#include <linux/interrupt.h> 16#include <linux/interrupt.h>
@@ -21,14 +18,13 @@
21#include <linux/delay.h> 18#include <linux/delay.h>
22#include <linux/module.h> 19#include <linux/module.h>
23#include <linux/sched.h> 20#include <linux/sched.h>
24
25#include <asm/machvec.h> 21#include <asm/machvec.h>
26#include <asm/mach/io.h> 22#include <asm/snapgear.h>
27#include <asm/irq.h> 23#include <asm/irq.h>
28#include <asm/io.h> 24#include <asm/io.h>
25#include <asm/rtc.h>
29#include <asm/cpu/timer.h> 26#include <asm/cpu/timer.h>
30 27
31extern void (*board_time_init)(void);
32extern void secureedge5410_rtc_init(void); 28extern void secureedge5410_rtc_init(void);
33extern void pcibios_init(void); 29extern void pcibios_init(void);
34 30
@@ -85,101 +81,20 @@ static void __init init_snapgear_IRQ(void)
85 make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); 81 make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY);
86} 82}
87 83
88/****************************************************************************/
89/*
90 * Fast poll interrupt simulator.
91 */
92
93/* 84/*
94 * Leave all of the fast timer/fast poll stuff commented out for now, since 85 * Initialize the board
95 * it's not clear whether it actually works or not. Since it wasn't being used
96 * at all in 2.4, we'll assume it's not sane for 2.6 either.. -- PFM
97 */
98#if 0
99#define FAST_POLL 1000
100//#define FAST_POLL_INTR
101
102#define FASTTIMER_IRQ 17
103#define FASTTIMER_IPR_ADDR INTC_IPRA
104#define FASTTIMER_IPR_POS 2
105#define FASTTIMER_PRIORITY 3
106
107#ifdef FAST_POLL_INTR
108#define TMU1_TCR_INIT 0x0020
109#else
110#define TMU1_TCR_INIT 0
111#endif
112#define TMU_TSTR_INIT 1
113#define TMU1_TCR_CALIB 0x0000
114
115
116#ifdef FAST_POLL_INTR
117static void fast_timer_irq(int irq, void *dev_instance, struct pt_regs *regs)
118{
119 unsigned long timer_status;
120 timer_status = ctrl_inw(TMU1_TCR);
121 timer_status &= ~0x100;
122 ctrl_outw(timer_status, TMU1_TCR);
123}
124#endif
125
126/*
127 * return the current ticks on the fast timer
128 */
129
130unsigned long fast_timer_count(void)
131{
132 return(ctrl_inl(TMU1_TCNT));
133}
134
135/*
136 * setup a fast timer for profiling etc etc
137 */ 86 */
138 87static void __init snapgear_setup(char **cmdline_p)
139static void setup_fast_timer()
140{
141 unsigned long interval;
142
143#ifdef FAST_POLL_INTR
144 interval = (current_cpu_data.module_clock/4 + FAST_POLL/2) / FAST_POLL;
145
146 make_ipr_irq(FASTTIMER_IRQ, FASTTIMER_IPR_ADDR, FASTTIMER_IPR_POS,
147 FASTTIMER_PRIORITY);
148
149 printk("SnapGear: %dHz fast timer on IRQ %d\n",FAST_POLL,FASTTIMER_IRQ);
150
151 if (request_irq(FASTTIMER_IRQ, fast_timer_irq, 0, "SnapGear fast timer",
152 NULL) != 0)
153 printk("%s(%d): request_irq() failed?\n", __FILE__, __LINE__);
154#else
155 printk("SnapGear: fast timer running\n",FAST_POLL,FASTTIMER_IRQ);
156 interval = 0xffffffff;
157#endif
158
159 ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x2, TMU_TSTR); /* disable timer 1 */
160 ctrl_outw(TMU1_TCR_INIT, TMU1_TCR);
161 ctrl_outl(interval, TMU1_TCOR);
162 ctrl_outl(interval, TMU1_TCNT);
163 ctrl_outb(ctrl_inb(TMU_TSTR) | 0x2, TMU_TSTR); /* enable timer 1 */
164
165 printk("Timer count 1 = 0x%x\n", fast_timer_count());
166 udelay(1000);
167 printk("Timer count 2 = 0x%x\n", fast_timer_count());
168}
169#endif
170
171/****************************************************************************/
172
173const char *get_system_type(void)
174{ 88{
175 return "SnapGear SecureEdge5410"; 89 board_time_init = secureedge5410_rtc_init;
176} 90}
177 91
178/* 92/*
179 * The Machine Vector 93 * The Machine Vector
180 */ 94 */
181
182struct sh_machine_vector mv_snapgear __initmv = { 95struct sh_machine_vector mv_snapgear __initmv = {
96 .mv_name = "SnapGear SecureEdge5410",
97 .mv_setup = snapgear_setup,
183 .mv_nr_irqs = 72, 98 .mv_nr_irqs = 72,
184 99
185 .mv_inb = snapgear_inb, 100 .mv_inb = snapgear_inb,
@@ -196,20 +111,6 @@ struct sh_machine_vector mv_snapgear __initmv = {
196 .mv_outw_p = snapgear_outw, 111 .mv_outw_p = snapgear_outw,
197 .mv_outl_p = snapgear_outl, 112 .mv_outl_p = snapgear_outl,
198 113
199 .mv_isa_port2addr = snapgear_isa_port2addr,
200
201 .mv_init_irq = init_snapgear_IRQ, 114 .mv_init_irq = init_snapgear_IRQ,
202}; 115};
203ALIAS_MV(snapgear) 116ALIAS_MV(snapgear)
204
205/*
206 * Initialize the board
207 */
208
209int __init platform_setup(void)
210{
211 board_time_init = secureedge5410_rtc_init;
212
213 return 0;
214}
215