145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/***************************************************************************/
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/*
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* linux/arch/m68knommu/platform/5272/config.c
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*
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* Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
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* Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com)
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*/
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/***************************************************************************/
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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/irq.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/mcftimer.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_tick(void);
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void coldfire_timer_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
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unsigned long coldfire_timer_offset(void);
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void coldfire_trap_init(void);
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void coldfire_reset(void);
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extern unsigned int mcf_timervector;
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extern unsigned int mcf_profilevector;
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extern unsigned int mcf_timerlevel;
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/***************************************************************************/
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/*
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* Some platforms need software versions of the GPIO data registers.
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*/
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unsigned short ppdata;
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unsigned char ledbank = 0xff;
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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 *icrp;
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icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
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icrp[0] = 0x88888888;
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icrp[1] = 0x88888888;
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icrp[2] = 0x88888888;
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icrp[3] = 0x88888888;
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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 mcf_settimericr(int timer, int level)
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{
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volatile unsigned long *icrp;
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if ((timer >= 1 ) && (timer <= 4)) {
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icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
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*icrp = (0x8 | level) << ((4 - timer) * 4);
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}
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}
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/***************************************************************************/
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int mcf_timerirqpending(int timer)
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{
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volatile unsigned long *icrp;
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if ((timer >= 1 ) && (timer <= 4)) {
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icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
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return (*icrp & (0x8 << ((4 - timer) * 4)));
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}
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return 0;
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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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#if defined (CONFIG_MOD5272)
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volatile unsigned char *pivrp;
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/* Set base of device vectors to be 64 */
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pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR);
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*pivrp = 0x40;
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#endif
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mcf_disableall();
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#if defined(CONFIG_BOOTPARAM)
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strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
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commandp[size-1] = 0;
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#elif defined(CONFIG_NETtel) || defined(CONFIG_SCALES)
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/* Copy command line from FLASH to local buffer... */
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memcpy(commandp, (char *) 0xf0004000, size);
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commandp[size-1] = 0;
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#elif defined(CONFIG_MTD_KeyTechnology)
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/* Copy command line from FLASH to local buffer... */
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memcpy(commandp, (char *) 0xffe06000, size);
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commandp[size-1] = 0;
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#elif defined(CONFIG_CANCam)
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/* Copy command line from FLASH to local buffer... */
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memcpy(commandp, (char *) 0xf0010000, 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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mcf_timervector = 69;
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mcf_profilevector = 70;
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mach_sched_init = coldfire_timer_init;
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mach_tick = coldfire_tick;
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mach_gettimeoffset = coldfire_timer_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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