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  • only in /netgear-WNDR4500v2-V1.0.0.60_1.0.38/src/linux/linux-2.6/arch/m68knommu/platform/5206/
1/***************************************************************************/
2
3/*
4 *	linux/arch/m68knommu/platform/5206/config.c
5 *
6 *	Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
7 * 	Copyright (C) 2000-2001, Lineo Inc. (www.lineo.com)
8 */
9
10/***************************************************************************/
11
12#include <linux/kernel.h>
13#include <linux/sched.h>
14#include <linux/param.h>
15#include <linux/init.h>
16#include <linux/interrupt.h>
17#include <asm/irq.h>
18#include <asm/dma.h>
19#include <asm/traps.h>
20#include <asm/machdep.h>
21#include <asm/coldfire.h>
22#include <asm/mcftimer.h>
23#include <asm/mcfsim.h>
24#include <asm/mcfdma.h>
25
26/***************************************************************************/
27
28void coldfire_tick(void);
29void coldfire_timer_init(irq_handler_t handler);
30unsigned long coldfire_timer_offset(void);
31void coldfire_trap_init(void);
32void coldfire_reset(void);
33
34/***************************************************************************/
35
36/*
37 *	DMA channel base address table.
38 */
39unsigned int   dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
40        MCF_MBAR + MCFDMA_BASE0,
41        MCF_MBAR + MCFDMA_BASE1,
42};
43
44unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
45
46/***************************************************************************/
47
48void mcf_autovector(unsigned int vec)
49{
50	volatile unsigned char  *mbar;
51	unsigned char		icr;
52
53	if ((vec >= 25) && (vec <= 31)) {
54		vec -= 25;
55		mbar = (volatile unsigned char *) MCF_MBAR;
56		icr = MCFSIM_ICR_AUTOVEC | (vec << 3);
57		*(mbar + MCFSIM_ICR1 + vec) = icr;
58		vec = 0x1 << (vec + 1);
59		mcf_setimr(mcf_getimr() & ~vec);
60	}
61}
62
63/***************************************************************************/
64
65void mcf_settimericr(unsigned int timer, unsigned int level)
66{
67	volatile unsigned char *icrp;
68	unsigned int icr, imr;
69
70	if (timer <= 2) {
71		switch (timer) {
72		case 2:  icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
73		default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
74		}
75
76		icrp = (volatile unsigned char *) (MCF_MBAR + icr);
77		*icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
78		mcf_setimr(mcf_getimr() & ~imr);
79	}
80}
81
82/***************************************************************************/
83
84int mcf_timerirqpending(int timer)
85{
86	unsigned int imr = 0;
87
88	switch (timer) {
89	case 1:  imr = MCFSIM_IMR_TIMER1; break;
90	case 2:  imr = MCFSIM_IMR_TIMER2; break;
91	default: break;
92	}
93	return (mcf_getipr() & imr);
94}
95
96/***************************************************************************/
97
98void config_BSP(char *commandp, int size)
99{
100	mcf_setimr(MCFSIM_IMR_MASKALL);
101
102#if defined(CONFIG_BOOTPARAM)
103	strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
104	commandp[size-1] = 0;
105#else
106	memset(commandp, 0, size);
107#endif
108
109	mach_sched_init = coldfire_timer_init;
110	mach_tick = coldfire_tick;
111	mach_gettimeoffset = coldfire_timer_offset;
112	mach_trap_init = coldfire_trap_init;
113	mach_reset = coldfire_reset;
114}
115
116/***************************************************************************/
117