/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include extern u8 _secram[], _esecram[]; void bootblock_mainboard_init(void) { mmu_init(); /* Everything below DRAM is device memory */ mmu_config_range((void *)0, (uintptr_t)_dram, MA_DEV | MA_RW); /* Set a dummy value for DRAM. ramstage should update the mapping. */ mmu_config_range(_dram, 1 * GiB, MA_MEM | MA_RW); mmu_config_range(_ttb, REGION_SIZE(ttb), MA_MEM | MA_S | MA_RW); mmu_config_range(_bootblock, REGION_SIZE(bootblock), MA_MEM | MA_S | MA_RW); mmu_config_range(_romstage, REGION_SIZE(romstage), MA_MEM | MA_S | MA_RW); mmu_config_range(_ramstage, REGION_SIZE(ramstage), MA_MEM | MA_S | MA_RW); mmu_config_range(_secram, REGION_SIZE(secram), MA_MEM | MA_S | MA_RW); mmu_enable(); }