diff options
Diffstat (limited to 'bsps/powerpc/include/mpc8260/mmu.h')
| -rw-r--r-- | bsps/powerpc/include/mpc8260/mmu.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/bsps/powerpc/include/mpc8260/mmu.h b/bsps/powerpc/include/mpc8260/mmu.h new file mode 100644 index 0000000000..9445dde3bc --- /dev/null +++ b/bsps/powerpc/include/mpc8260/mmu.h @@ -0,0 +1,47 @@ +/* + * mmu.h + * + * This include file contains definitions pertaining + * to the MMU on the MPC8xx. + * + * Copyright (c) 1999, National Research Council of Canada + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef _MPC8260_MMU_H +#define _MPC8260_MMU_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * The MMU_TLB_table is used to statically initialize the Table Lookaside + * Buffers in the MMU of an MPC8260. + */ +typedef struct { + uint32_t mmu_epn; /* Effective Page Number */ + uint32_t mmu_twc; /* Tablewalk Control Register */ + uint32_t mmu_rpn; /* Real Page Number */ +} MMU_TLB_table_t; + +/* + * The MMU_TLB_table and its size, MMU_N_TLB_Table_Entries, must be + * supplied by the BSP. + */ +extern MMU_TLB_table_t MMU_TLB_table[]; /* MMU TLB table supplied by BSP */ +extern int MMU_N_TLB_Table_Entries; /* Number of entries in MMU TLB table */ + +/* Functions */ + +void mmu_init( void ); + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ |