1 /***************************************************************************/
4 * linux/arch/m68knommu/platform/5407/config.c
6 * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
7 * Copyright (C) 2000, Lineo (www.lineo.com)
10 /***************************************************************************/
12 #include <linux/config.h>
13 #include <linux/kernel.h>
14 #include <linux/sched.h>
15 #include <linux/param.h>
16 #include <linux/init.h>
17 #include <linux/interrupt.h>
20 #include <asm/traps.h>
21 #include <asm/machdep.h>
22 #include <asm/coldfire.h>
23 #include <asm/mcftimer.h>
24 #include <asm/mcfsim.h>
25 #include <asm/mcfdma.h>
26 #include <asm/delay.h>
28 /***************************************************************************/
30 void coldfire_tick(void);
31 void coldfire_timer_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
32 unsigned long coldfire_timer_offset(void);
33 void coldfire_trap_init(void);
34 void coldfire_reset(void);
36 extern unsigned int mcf_timervector;
37 extern unsigned int mcf_profilevector;
38 extern unsigned int mcf_timerlevel;
40 /***************************************************************************/
43 * DMA channel base address table.
45 unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
46 MCF_MBAR + MCFDMA_BASE0,
47 MCF_MBAR + MCFDMA_BASE1,
48 MCF_MBAR + MCFDMA_BASE2,
49 MCF_MBAR + MCFDMA_BASE3,
52 unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
54 /***************************************************************************/
56 void mcf_autovector(unsigned int vec)
58 volatile unsigned char *mbar;
60 if ((vec >= 25) && (vec <= 31)) {
61 mbar = (volatile unsigned char *) MCF_MBAR;
62 vec = 0x1 << (vec - 24);
63 *(mbar + MCFSIM_AVR) |= vec;
64 mcf_setimr(mcf_getimr() & ~vec);
68 /***************************************************************************/
70 void mcf_settimericr(unsigned int timer, unsigned int level)
72 volatile unsigned char *icrp;
73 unsigned int icr, imr;
77 case 2: icr = MCFSIM_TIMER2ICR; imr = MCFSIM_IMR_TIMER2; break;
78 default: icr = MCFSIM_TIMER1ICR; imr = MCFSIM_IMR_TIMER1; break;
81 icrp = (volatile unsigned char *) (MCF_MBAR + icr);
82 *icrp = MCFSIM_ICR_AUTOVEC | (level << 2) | MCFSIM_ICR_PRI3;
83 mcf_setimr(mcf_getimr() & ~imr);
87 /***************************************************************************/
89 int mcf_timerirqpending(int timer)
94 case 1: imr = MCFSIM_IMR_TIMER1; break;
95 case 2: imr = MCFSIM_IMR_TIMER2; break;
98 return (mcf_getipr() & imr);
101 /***************************************************************************/
103 void config_BSP(char *commandp, int size)
105 mcf_setimr(MCFSIM_IMR_MASKALL);
107 #if defined(CONFIG_BOOTPARAM)
108 strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
109 commandp[size-1] = 0;
111 memset(commandp, 0, size);
114 #if defined(CONFIG_CLEOPATRA)
115 /* Different timer setup - to prevent device clash */
116 mcf_timervector = 30;
117 mcf_profilevector = 31;
121 mach_sched_init = coldfire_timer_init;
122 mach_tick = coldfire_tick;
123 mach_gettimeoffset = coldfire_timer_offset;
124 mach_trap_init = coldfire_trap_init;
125 mach_reset = coldfire_reset;
128 /***************************************************************************/