diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 20 | ||||
| -rw-r--r-- | arch/powerpc/mm/fsl_booke_mmu.c | 6 |
2 files changed, 16 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 7aecb39a5a45..d9cc2c288d9e 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -73,8 +73,8 @@ _ENTRY(_start); /* We try to not make any assumptions about how the boot loader * setup or used the TLBs. We invalidate all mappings from the * boot loader and load a single entry in TLB1[0] to map the - * first 16M of kernel memory. Any boot info passed from the - * bootloader needs to live in this first 16M. + * first 64M of kernel memory. Any boot info passed from the + * bootloader needs to live in this first 64M. * * Requirement on bootloader: * - The page we're executing in needs to reside in TLB1 and @@ -167,7 +167,7 @@ skpinv: addi r6,r6,1 /* Increment */ mtspr SPRN_MAS0,r7 tlbre - /* Just modify the entry ID and EPN for the temp mapping */ + /* Just modify the entry ID, EPN and RPN for the temp mapping */ lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */ rlwimi r7,r5,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r5) */ mtspr SPRN_MAS0,r7 @@ -177,9 +177,12 @@ skpinv: addi r6,r6,1 /* Increment */ ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_4K))@l mtspr SPRN_MAS1,r6 mfspr r6,SPRN_MAS2 - li r7,0 /* temp EPN = 0 */ + lis r7,PHYSICAL_START@h rlwimi r7,r6,0,20,31 mtspr SPRN_MAS2,r7 + mfspr r6,SPRN_MAS3 + rlwimi r7,r6,0,20,31 + mtspr SPRN_MAS3,r7 tlbwe xori r6,r4,1 @@ -222,11 +225,11 @@ skpinv: addi r6,r6,1 /* Increment */ lis r6,0x1000 /* Set MAS0(TLBSEL) = TLB1(1), ESEL = 0 */ mtspr SPRN_MAS0,r6 lis r6,(MAS1_VALID|MAS1_IPROT)@h - ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_16M))@l + ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_64M))@l mtspr SPRN_MAS1,r6 li r7,0 - lis r6,KERNELBASE@h - ori r6,r6,KERNELBASE@l + lis r6,PAGE_OFFSET@h + ori r6,r6,PAGE_OFFSET@l rlwimi r6,r7,0,20,31 mtspr SPRN_MAS2,r6 li r7,(MAS3_SX|MAS3_SW|MAS3_SR) @@ -234,6 +237,9 @@ skpinv: addi r6,r6,1 /* Increment */ tlbwe /* 7. Jump to KERNELBASE mapping */ + lis r6,KERNELBASE@h + ori r6,r6,KERNELBASE@l + rlwimi r6,r7,0,20,31 lis r7,MSR_KERNEL@h ori r7,r7,MSR_KERNEL@l bl 1f /* Find our address */ diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c index 17139daeaff4..c93a966b7e4b 100644 --- a/arch/powerpc/mm/fsl_booke_mmu.c +++ b/arch/powerpc/mm/fsl_booke_mmu.c @@ -165,15 +165,15 @@ void invalidate_tlbcam_entry(int index) void __init cam_mapin_ram(unsigned long cam0, unsigned long cam1, unsigned long cam2) { - settlbcam(0, KERNELBASE, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0); + settlbcam(0, PAGE_OFFSET, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0); tlbcam_index++; if (cam1) { tlbcam_index++; - settlbcam(1, KERNELBASE+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0); + settlbcam(1, PAGE_OFFSET+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0); } if (cam2) { tlbcam_index++; - settlbcam(2, KERNELBASE+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0); + settlbcam(2, PAGE_OFFSET+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0); } } |