1 /***************************************************************************/
4 * linux/arch/m68knommu/platform/5249/config.c
6 * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
9 /***************************************************************************/
11 #include <linux/config.h>
12 #include <linux/kernel.h>
13 #include <linux/sched.h>
14 #include <linux/param.h>
15 #include <linux/init.h>
18 #include <asm/traps.h>
19 #include <asm/machdep.h>
20 #include <asm/coldfire.h>
21 #include <asm/mcftimer.h>
22 #include <asm/mcfsim.h>
23 #include <asm/mcfdma.h>
24 #include <asm/delay.h>
26 /***************************************************************************/
28 void coldfire_tick(void);
29 void coldfire_timer_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
30 unsigned long coldfire_timer_offset(void);
31 void coldfire_trap_init(void);
32 void coldfire_reset(void);
34 /***************************************************************************/
37 * DMA channel base address table.
39 unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
40 MCF_MBAR + MCFDMA_BASE0,
41 MCF_MBAR + MCFDMA_BASE1,
42 MCF_MBAR + MCFDMA_BASE2,
43 MCF_MBAR + MCFDMA_BASE3,
46 unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
48 /***************************************************************************/
50 void mcf_autovector(unsigned int vec)
52 volatile unsigned char *mbar;
54 if ((vec >= 25) && (vec <= 31)) {
55 mbar = (volatile unsigned char *) MCF_MBAR;
56 vec = 0x1 << (vec - 24);
57 *(mbar + MCFSIM_AVR) |= vec;
58 mcf_setimr(mcf_getimr() & ~vec);
62 /***************************************************************************/
64 void mcf_settimericr(unsigned int timer, unsigned int level)
66 volatile unsigned char *icrp;
67 unsigned int icr, imr;
71 case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
72 default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
75 icrp = (volatile unsigned char *) (MCF_MBAR + icr);
76 *icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
77 mcf_setimr(mcf_getimr() & ~imr);
81 /***************************************************************************/
83 int mcf_timerirqpending(int timer)
88 case 1: imr = MCFSIM_IMR_TIMER1; break;
89 case 2: imr = MCFSIM_IMR_TIMER2; break;
92 return (mcf_getipr() & imr);
95 /***************************************************************************/
97 void config_BSP(char *commandp, int size)
99 mcf_setimr(MCFSIM_IMR_MASKALL);
101 #if defined(CONFIG_BOOTPARAM)
102 strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
103 commandp[size-1] = 0;
105 memset(commandp, 0, size);
108 mach_sched_init = coldfire_timer_init;
109 mach_tick = coldfire_tick;
110 mach_gettimeoffset = coldfire_timer_offset;
111 mach_trap_init = coldfire_trap_init;
112 mach_reset = coldfire_reset;
115 /***************************************************************************/