1/***************************************************************************/ 2 3/* 4 * linux/arch/m68knommu/platform/523x/config.c 5 * 6 * Sub-architcture dependant initialization code for the Freescale 7 * 523x CPUs. 8 * 9 * Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com) 10 * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) 11 */ 12 13/***************************************************************************/ 14 15#include <linux/kernel.h> 16#include <linux/sched.h> 17#include <linux/param.h> 18#include <linux/init.h> 19#include <linux/interrupt.h> 20#include <asm/dma.h> 21#include <asm/traps.h> 22#include <asm/machdep.h> 23#include <asm/coldfire.h> 24#include <asm/mcfsim.h> 25#include <asm/mcfdma.h> 26 27/***************************************************************************/ 28 29void coldfire_pit_tick(void); 30void coldfire_pit_init(irq_handler_t handler); 31unsigned long coldfire_pit_offset(void); 32void coldfire_trap_init(void); 33void coldfire_reset(void); 34 35/***************************************************************************/ 36 37/* 38 * DMA channel base address table. 39 */ 40unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { 41 MCF_MBAR + MCFDMA_BASE0, 42}; 43 44unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; 45 46/***************************************************************************/ 47 48void mcf_disableall(void) 49{ 50 *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff; 51 *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff; 52} 53 54/***************************************************************************/ 55 56void mcf_autovector(unsigned int vec) 57{ 58 /* Everything is auto-vectored on the 5272 */ 59} 60 61/***************************************************************************/ 62 63void config_BSP(char *commandp, int size) 64{ 65 mcf_disableall(); 66 67#ifdef CONFIG_BOOTPARAM 68 strncpy(commandp, CONFIG_BOOTPARAM_STRING, size); 69 commandp[size-1] = 0; 70#else 71 memset(commandp, 0, size); 72#endif 73 74 mach_sched_init = coldfire_pit_init; 75 mach_tick = coldfire_pit_tick; 76 mach_gettimeoffset = coldfire_pit_offset; 77 mach_trap_init = coldfire_trap_init; 78 mach_reset = coldfire_reset; 79} 80 81/***************************************************************************/ 82