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pplus.h

pplus.h 2.2 KB
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  1. /*
    2. 

  2.  * arch/ppc/platforms/pplus.h
    3. 

  3.  *
    4. 

  4.  * Definitions for Motorola MCG Falcon/Raven & HAWK North Bridge & Memory ctlr.
    5. 

  5.  *
    6. 

  6.  * Author: Mark A. Greerinclude/asm-ppc/hawk.h
    7. 

  7.  *         mgreer@mvista.com
    8. 

  8.  *
    9. 

  9.  * Modified by Randy Vinson (rvinson@mvista.com)
    10. 

  10.  *
    11. 

  11.  * 2001-2004 (c) MontaVista, Software, Inc.  This file is licensed under
    12. 

  12.  * the terms of the GNU General Public License version 2.  This program
    13. 

  13.  * is licensed "as is" without any warranty of any kind, whether express
    14. 

  14.  * or implied.
    15. 

  15.  */
    16. 

  16. 

  17. #ifndef __PPC_PPLUS_H
    18. 

  18. #define __PPC_PPLUS_H
    19. 

  19. 

  20. #include <asm/io.h>
    21. 

  21. 

  22. /*
    23. 

  23.  * Due to limiations imposed by legacy hardware (primaryily IDE controllers),
    24. 

  24.  * the PPLUS boards operate using a PReP address map.
    25. 

  25.  *
    26. 

  26.  * From Processor (physical) -> PCI:
    27. 

  27.  *   PCI Mem Space: 0xc0000000 - 0xfe000000 -> 0x00000000 - 0x3e000000 (768 MB)
    28. 

  28.  *   PCI I/O Space: 0x80000000 - 0x90000000 -> 0x00000000 - 0x10000000 (256 MB)
    29. 

  29.  *	Note: Must skip 0xfe000000-0xfe400000 for CONFIG_HIGHMEM/PKMAP area
    30. 

  30.  *
    31. 

  31.  * From PCI -> Processor (physical):
    32. 

  32.  *   System Memory: 0x80000000 -> 0x00000000
    33. 

  33.  */
    34. 

  34. 

  35. #define PPLUS_ISA_MEM_BASE		PREP_ISA_MEM_BASE
    36. 

  36. #define PPLUS_ISA_IO_BASE		PREP_ISA_IO_BASE
    37. 

  37. 

  38. /* PCI Memory space mapping info */
    39. 

  39. #define PPLUS_PCI_MEM_SIZE		0x30000000U
    40. 

  40. #define PPLUS_PROC_PCI_MEM_START	PPLUS_ISA_MEM_BASE
    41. 

  41. #define PPLUS_PROC_PCI_MEM_END		(PPLUS_PROC_PCI_MEM_START +	\
    42. 

  42. 					 PPLUS_PCI_MEM_SIZE - 1)
    43. 

  43. #define PPLUS_PCI_MEM_START		0x00000000U
    44. 

  44. #define PPLUS_PCI_MEM_END		(PPLUS_PCI_MEM_START +	\
    45. 

  45. 					 PPLUS_PCI_MEM_SIZE - 1)
    46. 

  46. 

  47. /* PCI I/O space mapping info */
    48. 

  48. #define PPLUS_PCI_IO_SIZE		0x10000000U
    49. 

  49. #define PPLUS_PROC_PCI_IO_START		PPLUS_ISA_IO_BASE
    50. 

  50. #define PPLUS_PROC_PCI_IO_END		(PPLUS_PROC_PCI_IO_START +	\
    51. 

  51. 					 PPLUS_PCI_IO_SIZE - 1)
    52. 

  52. #define PPLUS_PCI_IO_START		0x00000000U
    53. 

  53. #define PPLUS_PCI_IO_END		(PPLUS_PCI_IO_START + 	\
    54. 

  54. 					 PPLUS_PCI_IO_SIZE - 1)
    55. 

  55. /* System memory mapping info */
    56. 

  56. #define PPLUS_PCI_DRAM_OFFSET		PREP_PCI_DRAM_OFFSET
    57. 

  57. #define PPLUS_PCI_PHY_MEM_OFFSET	(PPLUS_ISA_MEM_BASE-PPLUS_PCI_MEM_START)
    58. 

  58. 

  59. /* Define base addresses for important sets of registers */
    60. 

  60. #define PPLUS_HAWK_SMC_BASE		0xfef80000U
    61. 

  61. #define PPLUS_HAWK_PPC_REG_BASE		0xfeff0000U
    62. 

  62. #define PPLUS_SYS_CONFIG_REG		0xfef80400U
    63. 

  63. #define PPLUS_L2_CONTROL_REG		0x8000081cU
    64. 

  64. 

  65. #define PPLUS_VGA_MEM_BASE		0xf0000000U
    66. 

  66. 

  67. #endif	/* __PPC_PPLUS_H */
    68.