b5aaf3f71c
Low level initialization code for the 523x ColdFire processor family. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/***************************************************************************/
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/*
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* linux/arch/m68knommu/platform/523x/config.c
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*
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* Sub-architcture dependant initialization code for the Freescale
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* 523x CPUs.
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*
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* Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
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* Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
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*/
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/***************************************************************************/
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/param.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <asm/dma.h>
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#include <asm/traps.h>
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#include <asm/machdep.h>
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#include <asm/coldfire.h>
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#include <asm/mcfsim.h>
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#include <asm/mcfdma.h>
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/***************************************************************************/
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void coldfire_pit_tick(void);
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void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
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unsigned long coldfire_pit_offset(void);
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void coldfire_trap_init(void);
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void coldfire_reset(void);
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/***************************************************************************/
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/*
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* DMA channel base address table.
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*/
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unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
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MCF_MBAR + MCFDMA_BASE0,
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};
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unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
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/***************************************************************************/
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void mcf_disableall(void)
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{
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*((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff;
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*((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff;
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}
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/***************************************************************************/
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void mcf_autovector(unsigned int vec)
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{
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/* Everything is auto-vectored on the 5272 */
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}
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/***************************************************************************/
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void config_BSP(char *commandp, int size)
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{
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mcf_disableall();
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#ifdef CONFIG_BOOTPARAM
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strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
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commandp[size-1] = 0;
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#else
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memset(commandp, 0, size);
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#endif
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mach_sched_init = coldfire_pit_init;
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mach_tick = coldfire_pit_tick;
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mach_gettimeoffset = coldfire_pit_offset;
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mach_trap_init = coldfire_trap_init;
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mach_reset = coldfire_reset;
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}
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/***************************************************************************/
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