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bootloader/u-boot_2015_04/board/sbc8548/tlb.c 3.41 KB
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  /*
   * Copyright 2008 Freescale Semiconductor, Inc.
   *
   * (C) Copyright 2000
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <asm/mmu.h>
  
  struct fsl_e_tlb_entry tlb_table[] = {
  	/* TLB 0 - for temp stack in cache */
  	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR, CONFIG_SYS_INIT_RAM_ADDR,
  		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
  		      0, 0, BOOKE_PAGESZ_4K, 0),
  	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
  		      CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
  		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
  		      0, 0, BOOKE_PAGESZ_4K, 0),
  	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
  		      CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
  		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
  		      0, 0, BOOKE_PAGESZ_4K, 0),
  	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
  		      CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
  		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
  		      0, 0, BOOKE_PAGESZ_4K, 0),
  
  	/*
  	 * TLB 0:	64M	Non-cacheable, guarded
  	 * 0xfc000000	56M	unused
  	 * 0xff800000	8M	boot FLASH
  	 *	.... or ....
  	 * 0xfc000000	64M	user flash
  	 *
  	 * Out of reset this entry is only 4K.
  	 */
  	SET_TLB_ENTRY(1, 0xfc000000, 0xfc000000,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 0, BOOKE_PAGESZ_64M, 1),
  
  	/*
  	 * TLB 1:	1G	Non-cacheable, guarded
  	 * 0x80000000	512M	PCI1 MEM
  	 * 0xa0000000	512M	PCIe MEM
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_PCI1_MEM_VIRT, CONFIG_SYS_PCI1_MEM_PHYS,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 1, BOOKE_PAGESZ_1G, 1),
  
  	/*
  	 * TLB 2:	64M	Non-cacheable, guarded
  	 * 0xe0000000	1M	CCSRBAR
  	 * 0xe2000000	8M	PCI1 IO
  	 * 0xe2800000	8M	PCIe IO
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 2, BOOKE_PAGESZ_64M, 1),
  
  #ifdef CONFIG_SYS_LBC_SDRAM_BASE
  	/*
  	 * TLB 3:	64M	Cacheable, non-guarded
  	 * 0xf0000000	64M	LBC SDRAM First half
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE, CONFIG_SYS_LBC_SDRAM_BASE,
  		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
  		      0, 3, BOOKE_PAGESZ_64M, 1),
  
  	/*
  	 * TLB 4:	64M	Cacheable, non-guarded
  	 * 0xf4000000	64M	LBC SDRAM Second half
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
  		      CONFIG_SYS_LBC_SDRAM_BASE + 0x4000000,
  		      MAS3_SX|MAS3_SW|MAS3_SR, 0,
  		      0, 4, BOOKE_PAGESZ_64M, 1),
  #endif
  
  	/*
  	 * TLB 5:	16M	Cacheable, non-guarded
  	 * 0xf8000000	1M	7-segment LED display
  	 * 0xf8100000	1M	User switches
  	 * 0xf8300000	1M	Board revision
  	 * 0xf8b00000	1M	EEPROM
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_EPLD_BASE, CONFIG_SYS_EPLD_BASE,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 5, BOOKE_PAGESZ_16M, 1),
  
  #ifndef CONFIG_SYS_ALT_BOOT
  	/*
  	 * TLB 6:	64M	Non-cacheable, guarded
  	 * 0xec000000	64M	64MB user FLASH
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 6, BOOKE_PAGESZ_64M, 1),
  #else
  	/*
  	 * TLB 6:	4M	Non-cacheable, guarded
  	 * 0xef800000	4M	1st 1/2 8MB soldered FLASH
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH, CONFIG_SYS_ALT_FLASH,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 6, BOOKE_PAGESZ_4M, 1),
  
  	/*
  	 * TLB 7:	4M	Non-cacheable, guarded
  	 * 0xefc00000	4M	2nd half 8MB soldered FLASH
  	 */
  	SET_TLB_ENTRY(1, CONFIG_SYS_ALT_FLASH + 0x400000,
  		      CONFIG_SYS_ALT_FLASH + 0x400000,
  		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
  		      0, 7, BOOKE_PAGESZ_4M, 1),
  #endif
  
  };
  
  int num_tlb_entries = ARRAY_SIZE(tlb_table);