law.c 1.6 KB

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  1. /*
  2. * Copyright 2008 Freescale Semiconductor, Inc.
  3. *
  4. * (C) Copyright 2000
  5. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  6. *
  7. * SPDX-License-Identifier: GPL-2.0+
  8. */
  9. #include <common.h>
  10. #include <asm/fsl_law.h>
  11. #include <asm/mmu.h>
  12. /*
  13. * LAW(Local Access Window) configuration:
  14. *
  15. * 0x0000_0000 0x0fff_ffff DDR 256M
  16. * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M
  17. * 0xa000_0000 0xbfff_ffff PCIe MEM 512M
  18. * 0xe000_0000 0xe000_ffff CCSR 1M
  19. * 0xe200_0000 0xe27f_ffff PCI1 IO 8M
  20. * 0xe280_0000 0xe2ff_ffff PCIe IO 8M
  21. * 0xec00_0000 0xefff_ffff FLASH (2nd bank) 64M
  22. * 0xf000_0000 0xf7ff_ffff SDRAM 128M
  23. * 0xf8b0_0000 0xf80f_ffff EEPROM 1M
  24. * 0xff80_0000 0xffff_ffff FLASH (boot bank) 8M
  25. *
  26. * If swapped CS0/CS6 via JP12+SW2.8:
  27. * 0xef80_0000 0xefff_ffff FLASH (2nd bank) 8M
  28. * 0xfc00_0000 0xffff_ffff FLASH (boot bank) 64M
  29. *
  30. * Notes:
  31. * CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
  32. * If flash is 8M at default position (last 8M), no LAW needed.
  33. */
  34. struct law_entry law_table[] = {
  35. #ifdef CONFIG_SYS_ALT_BOOT
  36. SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_8M, LAW_TRGT_IF_LBC),
  37. #else
  38. SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
  39. #endif
  40. #ifndef CONFIG_SPD_EEPROM
  41. SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR),
  42. #endif
  43. #ifdef CONFIG_SYS_LBC_SDRAM_BASE
  44. /* LBC window - maps 256M 0xf0000000 -> 0xffffffff */
  45. SET_LAW(CONFIG_SYS_LBC_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
  46. #else
  47. /* LBC window - maps 128M 0xf8000000 -> 0xffffffff */
  48. SET_LAW(CONFIG_SYS_EPLD_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC),
  49. #endif
  50. };
  51. int num_law_entries = ARRAY_SIZE(law_table);