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-rw-r--r--arch/m68knommu/platform/68328/config.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/68328/config.c b/arch/m68knommu/platform/68328/config.c
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1/*
2 * linux/arch/$(ARCH)/platform/$(PLATFORM)/config.c
3 *
4 * Copyright (C) 1993 Hamish Macdonald
5 * Copyright (C) 1999 D. Jeff Dionne
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file COPYING in the main directory of this archive
9 * for more details.
10 *
11 * VZ Support/Fixes Evan Stawnyczy <e@lineo.ca>
12 */
13
14#include <asm/dbg.h>
15#include <stdarg.h>
16#include <linux/config.h>
17#include <linux/types.h>
18#include <linux/kernel.h>
19#include <linux/mm.h>
20#include <linux/tty.h>
21#include <linux/console.h>
22#include <linux/interrupt.h>
23#include <asm/current.h>
24
25#include <asm/setup.h>
26#include <asm/system.h>
27#include <asm/pgtable.h>
28#include <asm/irq.h>
29#include <asm/machdep.h>
30#include <asm/MC68328.h>
31
32
33void BSP_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *))
34{
35
36#ifdef CONFIG_XCOPILOT_BUGS
37 /*
38 * The only thing I know is that CLK32 is not available on Xcopilot
39 * I have little idea about what frequency SYSCLK has on Xcopilot.
40 * The values for prescaler and compare registers were simply
41 * taken from the original source
42 */
43
44 /* Restart mode, Enable int, SYSCLK, Enable timer */
45 TCTL2 = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_SYSCLK | TCTL_TEN;
46 /* Set prescaler */
47 TPRER2 = 2;
48 /* Set compare register */
49 TCMP2 = 0xd7e4;
50#else
51 /* Restart mode, Enable int, 32KHz, Enable timer */
52 TCTL2 = TCTL_OM | TCTL_IRQEN | TCTL_CLKSOURCE_32KHZ | TCTL_TEN;
53 /* Set prescaler (Divide 32KHz by 32)*/
54 TPRER2 = 31;
55 /* Set compare register 32Khz / 32 / 10 = 100 */
56 TCMP2 = 10;
57#endif
58
59 request_irq(TMR2_IRQ_NUM, timer_routine, IRQ_FLG_LOCK, "timer", NULL);
60}
61
62void BSP_tick(void)
63{
64 /* Reset Timer2 */
65 TSTAT2 &= 0;
66}
67
68unsigned long BSP_gettimeoffset (void)
69{
70 return 0;
71}
72
73void BSP_gettod (int *yearp, int *monp, int *dayp,
74 int *hourp, int *minp, int *secp)
75{
76}
77
78int BSP_hwclk(int op, struct hwclk_time *t)
79{
80 if (!op) {
81 /* read */
82 } else {
83 /* write */
84 }
85 return 0;
86}
87
88int BSP_set_clock_mmss (unsigned long nowtime)
89{
90#if 0
91 short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
92
93 tod->second1 = real_seconds / 10;
94 tod->second2 = real_seconds % 10;
95 tod->minute1 = real_minutes / 10;
96 tod->minute2 = real_minutes % 10;
97#endif
98 return 0;
99}
100
101void BSP_reset (void)
102{
103 local_irq_disable();
104 asm volatile ("moveal #0x10c00000, %a0;\n\t"
105 "moveb #0, 0xFFFFF300;\n\t"
106 "moveal 0(%a0), %sp;\n\t"
107 "moveal 4(%a0), %a0;\n\t"
108 "jmp (%a0);");
109}
110
111void config_BSP(char *command, int len)
112{
113 printk(KERN_INFO "\n68328 support D. Jeff Dionne <jeff@uclinux.org>\n");
114 printk(KERN_INFO "68328 support Kenneth Albanowski <kjahds@kjshds.com>\n");
115 printk(KERN_INFO "68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n");
116
117 mach_sched_init = BSP_sched_init;
118 mach_tick = BSP_tick;
119 mach_gettimeoffset = BSP_gettimeoffset;
120 mach_gettod = BSP_gettod;
121 mach_hwclk = NULL;
122 mach_set_clock_mmss = NULL;
123 mach_reset = BSP_reset;
124 *command = '\0';
125}