mirror of
https://github.com/AsahiLinux/u-boot
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97 lines
3 KiB
ArmAsm
97 lines
3 KiB
ArmAsm
/*
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* (C) Copyright 2009
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* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
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*
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* Based on board/amcc/canyonlands/init.S
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* (C) Copyright 2008
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <ppc_asm.tmpl>
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#include <config.h>
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#include <asm-ppc/mmu.h>
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/**************************************************************************
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* TLB TABLE
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*
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* This table is used by the cpu boot code to setup the initial tlb
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* entries. Rather than make broad assumptions in the cpu source tree,
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* this table lets each board set things up however they like.
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*
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* Pointer to the table is returned in r1
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*
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*************************************************************************/
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.section .bootpg,"ax"
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.globl tlbtab
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tlbtab:
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tlbtab_start
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/*
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* BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to
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* use the speed up boot process. It is patched after relocation to
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* enable SA_I
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*/
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tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR,
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4, AC_R|AC_W|AC_X|SA_G) /* TLB 0 */
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/*
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* TLB entries for SDRAM are not needed on this platform.
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* They are dynamically generated in the SPD DDR(2) detection
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* routine.
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*/
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#ifdef CONFIG_SYS_INIT_RAM_DCACHE
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/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
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tlbentry(CONFIG_SYS_INIT_RAM_ADDR, SZ_4K, CONFIG_SYS_INIT_RAM_ADDR,
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0, AC_R|AC_W|AC_X|SA_G)
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#endif
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tlbentry(CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 0xC,
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AC_R|AC_W|SA_G|SA_I)
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tlbentry(CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x20000000, 0xC,
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AC_R|AC_W|SA_G|SA_I)
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/* TLB-entry for NVRAM */
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tlbentry(CONFIG_SYS_NVRAM_BASE, SZ_1M, CONFIG_SYS_NVRAM_BASE, 4,
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AC_R|AC_W|SA_G|SA_I)
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/* TLB-entry for UART */
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tlbentry(CONFIG_SYS_UART_BASE, SZ_16K, CONFIG_SYS_UART_BASE, 4,
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AC_R|AC_W|SA_G|SA_I)
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/* TLB-entry for IO */
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tlbentry(CONFIG_SYS_IO_BASE, SZ_16K, CONFIG_SYS_IO_BASE, 4,
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AC_R|AC_W|SA_G|SA_I)
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/* TLB-entry for OCM */
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tlbentry(CONFIG_SYS_OCM_BASE, SZ_1M, 0x00000000, 4,
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AC_R|AC_W|AC_X|SA_I)
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/* TLB-entry for Local Configuration registers => peripherals */
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tlbentry(CONFIG_SYS_LOCAL_CONF_REGS, SZ_16M, CONFIG_SYS_LOCAL_CONF_REGS,
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4, AC_R|AC_W|AC_X|SA_G|SA_I)
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/* AHB: Internal USB Peripherals (USB, SATA) */
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tlbentry(CONFIG_SYS_AHB_BASE, SZ_1M, 0xbff00000, 4,
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AC_R|AC_W|AC_X|SA_G|SA_I)
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tlbtab_end
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