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| author | Wolfgang Denk <wd@denx.de> | 2010-10-05 14:37:25 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-10-05 14:37:25 +0200 |
| commit | db682a0b59b2e97b24275214f1837197a73fdb03 (patch) | |
| tree | 6e5f5c445023a71f78c8f166358339c3b72085f4 /board/amcc/bluestone/init.S | |
| parent | bbf2abc0f5a5be0b8081ae8587fa90b376160444 (diff) | |
| parent | 709d9481e99f9f42625a48d0517a8877382995a3 (diff) | |
Merge branch 'master' of git://git.denx.de/u-boot-ppc4xx
Diffstat (limited to 'board/amcc/bluestone/init.S')
| -rw-r--r-- | board/amcc/bluestone/init.S | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/board/amcc/bluestone/init.S b/board/amcc/bluestone/init.S new file mode 100644 index 0000000000..e969fcfd90 --- /dev/null +++ b/board/amcc/bluestone/init.S @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2010, Applied Micro Circuits Corporation + * Author: Tirumala R Marri <tmarri@apm.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <ppc_asm.tmpl> +#include <config.h> +#include <asm/mmu.h> +#include <asm/ppc4xx.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 + + /* TLB 0 */ + tlbentry(CONFIG_SYS_BOOT_BASE_ADDR, SZ_16M, CONFIG_SYS_BOOT_BASE_ADDR, + 4, AC_RWX | SA_G) + + /* 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) + + /* TLB-entry for OCM */ + tlbentry(CONFIG_SYS_OCM_BASE, SZ_64K, 0x00040000, 4, + AC_RWX | SA_I) + + /* TLB-entry for Local Configuration registers => peripherals */ + tlbentry(CONFIG_SYS_PERIPHERAL_BASE, SZ_16K, + CONFIG_SYS_PERIPHERAL_BASE, 4, AC_RWX | SA_IG) + tlbtab_end |