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Implement and use set_memory_registers_enable_mmu

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TuxSH
2018-02-28 13:32:18 +01:00
parent 64c8612342
commit e5f293e004
6 changed files with 73 additions and 24 deletions
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19
exosphere/src/coldboot_init.c
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@@ -9,10 +9,10 @@ extern const uint8_t __main_start__[], __main_end__[], __main_lma__[];
extern const uint8_t __pk2ldr_start__[], __pk2ldr_end__[], __pk2ldr_lma__[];
extern const uint8_t __vectors_start__[], __vectors_end__[], __vectors_lma__[];
extern void flush_dcache_all_tzram_pa(void);
extern void invalidate_icache_all_tzram_pa(void);
uintptr_t get_coldboot_crt0_stack_address(void);
/* warmboot_init.c */
void set_memory_registers_enable_mmu(void);
void flush_dcache_all_tzram_pa(void);
void invalidate_icache_all_tzram_pa(void);
static void identity_map_all_mappings(uintptr_t *mmu_l1_tbl, uintptr_t *mmu_l3_tbl) {
static const uintptr_t addrs[] = { TUPLE_FOLD_LEFT_0(EVAL(IDENTIY_MAPPING_ID_MAX), _MMAPID, COMMA) };
@@ -123,16 +123,15 @@ __attribute__((target("cmodel=large"), noinline)) static void copy_other_section
void coldboot_init(void) {
/* TODO: Set NX BOOTLOADER clock time field */
copy_warmboot_crt0();
/* TODO: set some mmio regs, etc. */
/* TODO: initialize DMA controllers */
/* At this point, we can (and will) access functions located in .warm_crt0 */
/* TODO: initialize DMA controllers, etc. */
configure_ttbls();
copy_other_sections();
/* TODO: set the MMU regs & tlbi & enable MMU */
set_memory_registers_enable_mmu();
flush_dcache_all_tzram_pa();
invalidate_icache_all_tzram_pa();
/* At this point we can access the mapped segments */
/* At this point we can access all the mapped segments */
/* TODO: zero-initialize the cpu context */
/* Nintendo clears the (emtpy) pk2ldr's BSS section, but we embed it 0-filled in the binary */
/* Nintendo clears the (emtpy) pk2ldr's BSS section here , but we embed it 0-filled in the binary */
}