| 190,20 → 190,33 |
|---|
| DEBUG_segments |
| |
| # initially fill segment registers |
| |
| li r31, 16 |
| mtctr r31 |
| |
| li r31, 0 |
| li r30, 0x2000 |
| |
| li r29, 8 |
| mtctr r29 |
| li r30, 0 |
| |
| seg_fill: |
| seg_fill_uspace: |
| |
| mtsrin r30, r31 |
| addi r30, r30, 0x111 |
| addi r30, r30, 1 |
| addis r31, r31, 0x1000 # move to next SR |
| |
| bdnz seg_fill |
| bdnz seg_fill_uspace |
| |
| li r29, 8 |
| mtctr r29 |
| li r30, 0x4000 |
| |
| seg_fill_kernel: |
| |
| mtsrin r30, r31 |
| addi r30, r30, 1 |
| addis r31, r31, 0x1000 # move to next SR |
| |
| bdnz seg_fill_kernel |
| |
| # invalidate block address translation registers |
| |
| DEBUG_bat |
| 241,10 → 254,34 |
|---|
| lis r31, 0x07ff |
| ori r31, r31, 0x0000 |
| |
| li r30, 0x4000 |
| li r29, 0 |
| |
| pht_clear: |
| |
| stw r29, 0(r31) |
| |
| addi r31, r31, 4 |
| subi r30, r30, 4 |
| |
| cmpwi r30, 0 |
| beq clear_end |
| |
| bdnz pht_clear |
| |
| DEBUG_end_pht_clear |
| |
| clear_end: |
| |
| lis r31, 0x07ff |
| ori r31, r31, 0x0000 |
| |
| mtsdr1 r31 |
| |
| # create identity mapping |
| |
| #ifdef CONFIG_BAT |
| |
| DEBUG_mapping |
| |
| # FIXME: map exactly the size of RAM |
| 260,6 → 297,8 |
|---|
| |
| mtspr dbat0u, r31 |
| mtspr dbat0l, r30 |
| |
| #endif |
| |
| DEBUG_tlb |
| |
| 270,7 → 309,11 |
|---|
| |
| # start the kernel |
| # |
| # pc = KERNEL_START_ADDR |
| # r3 = bootinfo (pa) |
| # sprg0 = KA2PA(KERNEL_START_ADDR) |
| # sprg3 = physical memory size |
| # sp = 0 (pa) |
| |
| lis r31, KERNEL_START_ADDR@ha |
| addi r31, r31, KERNEL_START_ADDR@l |
| 277,6 → 320,14 |
|---|
| |
| mtspr srr0, r31 |
| |
| subis r31, r31, 0x8000 |
| mtsprg0 r31 |
| |
| lwz r31, 0(r3) |
| mtsprg3 r31 |
| |
| li sp, 0 |
| |
| mfmsr r31 |
| ori r31, r31, (msr_ir | msr_dr)@l |
| mtspr srr1, r31 |