a79626604b
The boot loader on the MOD5272 board doesn't set the register maping, so set it in the 5272 init code. There was code in there to support this, but we had never needed to use it before. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
146 lines
3.8 KiB
C
146 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/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/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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