/* * This file is part of the coreboot project. * * Copyright (C) 2018, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #define CACHED_RAM (MA_MEM | MA_S | MA_RW) #define UNCACHED_RAM (MA_MEM | MA_S | MA_RW | MA_MEM_NC) #define DEV_MEM (MA_DEV | MA_S | MA_RW) void sdm845_mmu_init(void) { mmu_init(); mmu_config_range((void *)(4 * KiB), ((4UL * GiB) - (4 * KiB)), DEV_MEM); mmu_config_range((void *)_ssram, REGION_SIZE(ssram), CACHED_RAM); mmu_config_range((void *)_bsram, REGION_SIZE(bsram), CACHED_RAM); mmu_config_range((void *)_dma_coherent, REGION_SIZE(dma_coherent), UNCACHED_RAM); mmu_enable(); }