board/sbc8548/law.c

   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
  10 #include <common.h>
  11 #include <asm/fsl_law.h>
  12 #include <asm/mmu.h>
  13
  14 /*
  15  * LAW(Local Access Window) configuration:
  16  *
  17  * 0x0000_0000  0x0fff_ffff     DDR                     256M
  18  * 0x8000_0000  0x9fff_ffff     PCI1 MEM                512M
  19  * 0xa000_0000  0xbfff_ffff     PCIe MEM                512M
  20  * 0xe000_0000  0xe000_ffff     CCSR                    1M
  21  * 0xe200_0000  0xe27f_ffff     PCI1 IO                 8M
  22  * 0xe280_0000  0xe2ff_ffff     PCIe IO                 8M
  23  * 0xec00_0000  0xefff_ffff     FLASH (2nd bank)        64M
  24  * 0xf000_0000  0xf7ff_ffff     SDRAM                   128M
  25  * 0xf8b0_0000  0xf80f_ffff     EEPROM                  1M
  26  * 0xff80_0000  0xffff_ffff     FLASH (boot bank)       8M
  27  *
  28  * If swapped CS0/CS6 via JP12+SW2.8:
  29  * 0xef80_0000  0xefff_ffff     FLASH (2nd bank)        8M
  30  * 0xfc00_0000  0xffff_ffff     FLASH (boot bank)       64M
  31  *
  32  * Notes:
  33  *      CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
  34  *      If flash is 8M at default position (last 8M), no LAW needed.
  35  */
  36
  37 struct law_entry law_table[] = {
  38 #ifdef CONFIG_SYS_ALT_BOOT
  39         SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_8M, LAW_TRGT_IF_LBC),
  40 #else
  41         SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
  42 #endif
  43 #ifndef CONFIG_SPD_EEPROM
  44         SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR),
  45 #endif
  46 #ifdef CONFIG_SYS_LBC_SDRAM_BASE
  47         /* LBC window - maps 256M 0xf0000000 -> 0xffffffff */
  48         SET_LAW(CONFIG_SYS_LBC_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
  49 #else
  50         /* LBC window - maps 128M 0xf8000000 -> 0xffffffff */
  51         SET_LAW(CONFIG_SYS_EPLD_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC),
  52 #endif
  53 };
  54
  55 int num_law_entries = ARRAY_SIZE(law_table);