Firebee/FireBee_SVN
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

changed locked TLB pages to the last two megabytes of RAM

Browse Source
This commit is contained in:
Markus Fröschle
2013-08-07 04:33:10 +00:00
parent 35ce06a57c
commit d51caf50ee
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
BaS_gcc/sources/mmu.S
View File

@@ -163,14 +163,14 @@ _mmu_init:
move.l d3,MCF_MMU_MMUOR // mapped to ffffxxx, precise, move.l d3,MCF_MMU_MMUOR // mapped to ffffxxx, precise,
// 1fe0'0000 locked // 1fe0'0000 locked
move.l #0x1FE00000|std_mmutr,d0 // last megabyte of RAM. Reserved for BaS in RAM and BaS in ROM/data+bss move.l #0x1FE00000|std_mmutr,d0 // last two megabytes of RAM. Reserved for BaS in RAM and BaS in ROM/data+bss
move.l #0x1FE00000|copyback_mmudr|MCF_MMU_MMUDR_LK,d1 move.l #0x1FE00000|copyback_mmudr|MCF_MMU_MMUDR_LK,d1
move.l d0,MCF_MMU_MMUTR move.l d0,MCF_MMU_MMUTR
move.l d1,MCF_MMU_MMUDR move.l d1,MCF_MMU_MMUDR
move.l d2,MCF_MMU_MMUOR // setzen data move.l d2,MCF_MMU_MMUOR // setzen data
move.l d3,MCF_MMU_MMUOR // setzen instr move.l d3,MCF_MMU_MMUOR // setzen instr
// 1ff0'0000 locked (FIXME: why is this?) // 1ff0'0000 locked
move.l #0x1FF00000|std_mmutr,d0 move.l #0x1FF00000|std_mmutr,d0
move.l #0x1FF00000|copyback_mmudr|MCF_MMU_MMUDR_LK,d1 move.l #0x1FF00000|copyback_mmudr|MCF_MMU_MMUDR_LK,d1
move.l d0,MCF_MMU_MMUTR move.l d0,MCF_MMU_MMUTR