diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc750/mmu/bat.c')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc750/mmu/bat.c | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc750/mmu/bat.c b/c/src/lib/libcpu/powerpc/mpc750/mmu/bat.c deleted file mode 100644 index e39ab96ec5..0000000000 --- a/c/src/lib/libcpu/powerpc/mpc750/mmu/bat.c +++ /dev/null @@ -1,64 +0,0 @@ -/* - * bat.c - * - * This file contains the implementation of C function to - * Instanciate 60x/7xx ppc Block Address Translation (BAT) registers. - * More detailled information can be found on motorola - * site and more precisely in the following book : - * - * MPC750 - * Risc Microporcessor User's Manual - * Mtorola REF : MPC750UM/AD 8/97 - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in found in the file LICENSE in this distribution or at - * http://www.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#include <libcpu/bat.h> - -typedef union { /* BAT register values to be loaded */ - BAT bat; - unsigned int word[2]; -}ubat; - -typedef struct batrange { /* stores address ranges mapped by BATs */ - unsigned long start; - unsigned long limit; - unsigned long phys; -}batrange; - -batrange bat_addrs[4]; - -void setdbat(int bat_index, unsigned long virt, unsigned long phys, - unsigned int size, int flags) -{ - unsigned int bl; - int wimgxpp; - ubat bat; - - bl = (size >> 17) - 1; - /* 603, 604, etc. */ - wimgxpp = flags & (_PAGE_WRITETHRU | _PAGE_NO_CACHE - | _PAGE_COHERENT | _PAGE_GUARDED); - wimgxpp |= (flags & _PAGE_RW)? BPP_RW: BPP_RX; - bat.word[0] = virt | (bl << 2) | 2; /* Vs=1, Vp=0 */ - bat.word[1] = phys | wimgxpp; - if (flags & _PAGE_USER) - bat.bat.batu.vp = 1; - bat_addrs[bat_index].start = virt; - bat_addrs[bat_index].limit = virt + ((bl + 1) << 17) - 1; - bat_addrs[bat_index].phys = phys; - switch (bat_index) { - case 1 : asm_setdbat1(bat.word[0], bat.word[1]); break; - case 2 : asm_setdbat2(bat.word[0], bat.word[1]); break; - case 3 : asm_setdbat3(bat.word[0], bat.word[1]); break; - default: printk("bat.c : invalid BAT bat_index\n"); - } -} - |