diff options
Diffstat (limited to 'arch/powerpc/mach-mpc85xx/include/mach/mmu.h')
| -rw-r--r-- | arch/powerpc/mach-mpc85xx/include/mach/mmu.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/powerpc/mach-mpc85xx/include/mach/mmu.h b/arch/powerpc/mach-mpc85xx/include/mach/mmu.h new file mode 100644 index 0000000000..e2ecc62ef0 --- /dev/null +++ b/arch/powerpc/mach-mpc85xx/include/mach/mmu.h @@ -0,0 +1,52 @@ +/* + * Copyright 2012 GE Intelligent Platforms, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#ifndef _MPC85XX_MMU_H_ +#define _MPC85XX_MMU_H_ + +#ifdef CONFIG_E500 +#include <asm/mmu.h> + +#ifndef __ASSEMBLY__ +extern int e500_find_free_tlbcam(void); +extern void e500_read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, + unsigned long *epn, phys_addr_t *rpn); +extern void e500_read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, + unsigned long *epn, phys_addr_t *rpn); +extern void e500_set_tlb(u8 tlb, u32 epn, u64 rpn, u8 perms, u8 wimge, + u8 ts, u8 esel, u8 tsize, u8 iprot); +extern void e500_disable_tlb(u8 esel); +extern void e500_invalidate_tlb(u8 tlb); +extern void e500_init_tlbs(void); +extern int e500_find_tlb_idx(void *addr, u8 tlbsel); +extern void e500_init_used_tlb_cams(void); + +extern unsigned int e500_setup_ddr_tlbs(unsigned int memsize_in_meg); +extern void e500_write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, + u32 _mas7); + +#define FSL_SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz,\ + _iprot) \ + { .mas0 = FSL_BOOKE_MAS0(_tlb, _esel, 0), \ + .mas1 = FSL_BOOKE_MAS1(1, _iprot, 0, _ts, _sz), \ + .mas2 = FSL_BOOKE_MAS2(_epn, _wimge), \ + .mas3 = FSL_BOOKE_MAS3(_rpn, 0, _perms), \ + .mas7 = FSL_BOOKE_MAS7(_rpn), } + +struct fsl_e_tlb_entry { + u32 mas0; + u32 mas1; + u32 mas2; + u32 mas3; + u32 mas7; +}; +extern struct fsl_e_tlb_entry tlb_table[]; +extern int num_tlb_entries; +#endif +#endif +#endif /* _MPC85XX_MMU_H_ */ |