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bootloader/u-boot_2015_04/board/lwmon5/init.S 2.64 KB
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  /*
   * (C) Copyright 2007
   * Stefan Roese, DENX Software Engineering, sr@denx.de.
   *
   *  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <asm-offsets.h>
  #include <ppc_asm.tmpl>
  #include <config.h>
  #include <asm/mmu.h>
  
  /**************************************************************************
   * TLB TABLE
   *
   * This table is used by the cpu boot code to setup the initial tlb
   * entries. Rather than make broad assumptions in the cpu source tree,
   * this table lets each board set things up however they like.
   *
   *  Pointer to the table is returned in r1
   *
   *************************************************************************/
  	.section .bootpg,"ax"
  	.globl tlbtab
  
  tlbtab:
  	tlbtab_start
  
  	/*
  	 * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
  	 * speed up boot process. It is patched after relocation to enable SA_I
  	 */
  	tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 1, AC_RWX | SA_G)
  
  	/*
  	 * TLB entries for SDRAM are not needed on this platform.
  	 * They are dynamically generated in the SPD DDR(2) detection
  	 * routine.
  	 */
  
  #ifdef CONFIG_SYS_INIT_RAM_DCACHE
  	/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
  	tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_4K, CONFIG_SYS_INIT_RAM_ADDR, 0, AC_RWX | SA_G)
  #endif
  
  	/* TLB-entry for PCI Memory */
  	tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, CONFIG_SYS_PCI_MEMBASE, 1, AC_RW | SA_IG)
  	tlbentry(CONFIG_SYS_PCI_MEMBASE1, SZ_256M, CONFIG_SYS_PCI_MEMBASE1, 1, AC_RW | SA_IG)
  	tlbentry(CONFIG_SYS_PCI_MEMBASE2, SZ_256M, CONFIG_SYS_PCI_MEMBASE2, 1, AC_RW | SA_IG)
  	tlbentry(CONFIG_SYS_PCI_MEMBASE3, SZ_256M, CONFIG_SYS_PCI_MEMBASE3, 1, AC_RW | SA_IG)
  
  	/* TLB-entry for the FPGA Chip select 2 */
  	tlbentry(CONFIG_SYS_FPGA_BASE_0, SZ_1M, CONFIG_SYS_FPGA_BASE_0, 1, AC_RWX | SA_I|SA_G)
  
  	/* TLB-entry for the FPGA Chip select 3 */
  	tlbentry(CONFIG_SYS_FPGA_BASE_1, SZ_1M, CONFIG_SYS_FPGA_BASE_1, 1,AC_RWX | SA_I|SA_G)
  
  	/* TLB-entry for the LIME Controller */
  	tlbentry(CONFIG_SYS_LIME_BASE_0, SZ_16M, CONFIG_SYS_LIME_BASE_0, 1, AC_RWX | SA_I|SA_G)
  	tlbentry(CONFIG_SYS_LIME_BASE_1, SZ_16M, CONFIG_SYS_LIME_BASE_1, 1, AC_RWX | SA_I|SA_G)
  	tlbentry(CONFIG_SYS_LIME_BASE_2, SZ_16M, CONFIG_SYS_LIME_BASE_2, 1, AC_RWX | SA_I|SA_G)
  	tlbentry(CONFIG_SYS_LIME_BASE_3, SZ_16M, CONFIG_SYS_LIME_BASE_3, 1, AC_RWX | SA_I|SA_G)
  
  	/* TLB-entry for Internal Registers & OCM */
  	tlbentry(0xe0000000, SZ_16M, 0xe0000000, 0,  AC_RWX | SA_I)
  
  	/*TLB-entry PCI registers*/
  	tlbentry(0xEEC00000, SZ_1K, 0xEEC00000, 1,  AC_RWX | SA_IG)
  
  	/* TLB-entry for peripherals */
  	tlbentry(0xEF000000, SZ_16M, 0xEF000000, 1, AC_RWX | SA_IG)
  
  	tlbtab_end