1 /***************************************************************************/
4 * linux/arch/m68knommu/platform/5249/config.c
6 * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
9 /***************************************************************************/
11 #include <linux/kernel.h>
12 #include <linux/sched.h>
13 #include <linux/param.h>
14 #include <linux/init.h>
15 #include <linux/interrupt.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>
25 /***************************************************************************/
27 void coldfire_tick(void);
28 void coldfire_timer_init(irq_handler_t handler);
29 unsigned long coldfire_timer_offset(void);
30 void coldfire_reset(void);
32 /***************************************************************************/
35 * DMA channel base address table.
37 unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
38 MCF_MBAR + MCFDMA_BASE0,
39 MCF_MBAR + MCFDMA_BASE1,
40 MCF_MBAR + MCFDMA_BASE2,
41 MCF_MBAR + MCFDMA_BASE3,
44 unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
46 /***************************************************************************/
48 void mcf_autovector(unsigned int vec)
50 volatile unsigned char *mbar;
52 if ((vec >= 25) && (vec <= 31)) {
53 mbar = (volatile unsigned char *) MCF_MBAR;
54 vec = 0x1 << (vec - 24);
55 *(mbar + MCFSIM_AVR) |= vec;
56 mcf_setimr(mcf_getimr() & ~vec);
60 /***************************************************************************/
62 void mcf_settimericr(unsigned int timer, unsigned int level)
64 volatile unsigned char *icrp;
65 unsigned int icr, imr;
69 case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
70 default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
73 icrp = (volatile unsigned char *) (MCF_MBAR + icr);
74 *icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
75 mcf_setimr(mcf_getimr() & ~imr);
79 /***************************************************************************/
81 int mcf_timerirqpending(int timer)
86 case 1: imr = MCFSIM_IMR_TIMER1; break;
87 case 2: imr = MCFSIM_IMR_TIMER2; break;
90 return (mcf_getipr() & imr);
93 /***************************************************************************/
95 void config_BSP(char *commandp, int size)
97 mcf_setimr(MCFSIM_IMR_MASKALL);
98 mach_sched_init = coldfire_timer_init;
99 mach_tick = coldfire_tick;
100 mach_gettimeoffset = coldfire_timer_offset;
101 mach_reset = coldfire_reset;
104 /***************************************************************************/