mirror of
https://github.com/AsahiLinux/u-boot
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95 lines
3.1 KiB
ArmAsm
95 lines
3.1 KiB
ArmAsm
/*
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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 <asm-ppc/mmu.h>
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#include <config.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 use the
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* speed up boot process. It is patched after relocation to enable SA_I
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*/
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tlbentry( 0xF0000000, SZ_256M, 0xF0000000, 1, AC_R|AC_W|AC_X|SA_G )
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/*
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* TLB entries for SDRAM are not needed on this platform. They are
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* generated dynamically in the SPD DDR2 detection 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_64K, CONFIG_SYS_INIT_RAM_ADDR, 0,
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AC_R|AC_W|AC_X|SA_G )
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#endif
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/* TLB-entry for PCI Memory */
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tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x00000000, SZ_256M,
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CONFIG_SYS_PCI_MEMBASE + 0x00000000, 1, AC_R|AC_W|SA_G|SA_I )
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tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x10000000, SZ_256M,
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CONFIG_SYS_PCI_MEMBASE + 0x10000000, 1, AC_R|AC_W|SA_G|SA_I )
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tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x20000000, SZ_256M,
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CONFIG_SYS_PCI_MEMBASE + 0x20000000, 1, AC_R|AC_W|SA_G|SA_I )
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tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x30000000, SZ_256M,
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CONFIG_SYS_PCI_MEMBASE + 0x30000000, 1, AC_R|AC_W|SA_G|SA_I )
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/* TLB-entry for EBC */
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tlbentry( CONFIG_SYS_CPLD_BASE, SZ_1K, CONFIG_SYS_CPLD_BASE, 1, AC_R|AC_W|SA_G|SA_I )
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/* TLB-entry for Internal Registers & OCM */
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/* I wonder why this must be executable -- lrj@acm.org 2007-10-08 */
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tlbentry( 0xE0000000, SZ_16M, 0xE0000000, 0, AC_R|AC_W|AC_X|SA_I )
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/*TLB-entry PCI registers*/
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tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_R|AC_W|SA_G|SA_I )
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/* TLB-entry for peripherals */
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tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|SA_G|SA_I)
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/* TLB-entry PCI IO Space - from sr@denx.de */
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tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_R|AC_W|SA_G|SA_I)
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tlbtab_end
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#if defined(CONFIG_KORAT_PERMANENT)
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.globl korat_branch_absolute
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korat_branch_absolute:
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mtlr r3
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blr
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#endif
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