config.c 2.0 KB

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