diff options
Diffstat (limited to 'qemu/roms/u-boot/board/sandburst/metrobox/init.S')
| -rw-r--r-- | qemu/roms/u-boot/board/sandburst/metrobox/init.S | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/sandburst/metrobox/init.S b/qemu/roms/u-boot/board/sandburst/metrobox/init.S new file mode 100644 index 000000000..13e340eec --- /dev/null +++ b/qemu/roms/u-boot/board/sandburst/metrobox/init.S @@ -0,0 +1,37 @@ +/* +* Copyright (C) 2005 +* Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com + * SPDX-License-Identifier: GPL-2.0+ +*/ + +#include <ppc_asm.tmpl> +#include <asm/mmu.h> +#include <config.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 + tlbentry( 0xf0000000, SZ_256M, 0xf0000000, 1, AC_RWX | SA_IG) + tlbentry( CONFIG_SYS_PERIPHERAL_BASE, SZ_256M, 0x40000000, 1, AC_RW | SA_IG) + tlbentry( CONFIG_SYS_ISRAM_BASE, SZ_256K, 0x80000000, 0, AC_RWX | SA_IG) + tlbentry( CONFIG_SYS_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_RWX | SA_IG ) + tlbentry( CONFIG_SYS_SDRAM_BASE+0x10000000, SZ_256M, 0x10000000, 0, AC_RWX | SA_IG ) + tlbentry( CONFIG_SYS_SDRAM_BASE+0x20000000, SZ_256M, 0x20000000, 0, AC_RWX | SA_IG ) + tlbentry( CONFIG_SYS_SDRAM_BASE+0x30000000, SZ_256M, 0x30000000, 0, AC_RWX | SA_IG ) + tlbentry( CONFIG_SYS_PCI_BASE, SZ_256M, 0x00000000, 2, AC_RW | SA_IG ) + tlbentry( CONFIG_SYS_PCI_MEMBASE, SZ_256M, 0x00000000, 3, AC_RW | SA_IG ) + tlbtab_end |