arch/m68knommu/platform/528x/config.c

   1 /***************************************************************************/
   2
   3 /*
   4  *      linux/arch/m68knommu/platform/528x/config.c
   5  *
   6  *      Sub-architcture dependant initialization code for the Motorola
   7  *      5280 and 5282 CPUs.
   8  *
   9  *      Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com)
  10  *      Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
  11  */
  12
  13 /***************************************************************************/
  14
  15 #include <linux/config.h>
  16 #include <linux/kernel.h>
  17 #include <linux/sched.h>
  18 #include <linux/param.h>
  19 #include <linux/init.h>
  20 #include <linux/interrupt.h>
  21 #include <asm/dma.h>
  22 #include <asm/traps.h>
  23 #include <asm/machdep.h>
  24 #include <asm/coldfire.h>
  25 #include <asm/mcfsim.h>
  26 #include <asm/mcfdma.h>
  27
  28 /***************************************************************************/
  29
  30 void coldfire_pit_tick(void);
  31 void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
  32 unsigned long coldfire_pit_offset(void);
  33 void coldfire_trap_init(void);
  34 void coldfire_reset(void);
  35
  36 /***************************************************************************/
  37
  38 /*
  39  *      DMA channel base address table.
  40  */
  41 unsigned int   dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
  42         MCF_MBAR + MCFDMA_BASE0,
  43 };
  44
  45 unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
  46
  47 /***************************************************************************/
  48
  49 void mcf_disableall(void)
  50 {
  51         *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH)) = 0xffffffff;
  52         *((volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRL)) = 0xffffffff;
  53 }
  54
  55 /***************************************************************************/
  56
  57 void mcf_autovector(unsigned int vec)
  58 {
  59         /* Everything is auto-vectored on the 5272 */
  60 }
  61
  62 /***************************************************************************/
  63
  64 void config_BSP(char *commandp, int size)
  65 {
  66         mcf_disableall();
  67
  68 #ifdef CONFIG_BOOTPARAM
  69         strncpy(commandp, CONFIG_BOOTPARAM_STRING, size);
  70         commandp[size-1] = 0;
  71 #else
  72         memset(commandp, 0, size);
  73 #endif
  74
  75         mach_sched_init = coldfire_pit_init;
  76         mach_tick = coldfire_pit_tick;
  77         mach_gettimeoffset = coldfire_pit_offset;
  78         mach_trap_init = coldfire_trap_init;
  79         mach_reset = coldfire_reset;
  80 }
  81
  82 /***************************************************************************/