mmu.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <symbols.h>
#include <soc/addressmap.h>
#include <soc/mmu.h>
#include <soc/sdram.h>
#include <arch/mmu.h>
 
void soc_mmu_init(void)
{
        const unsigned long devmem = MA_DEV | MA_S | MA_RW;
        const unsigned long secure_mem = MA_MEM | MA_S | MA_RW;
 
        mmu_init();
 
        /*
         * Need to use secure mem attribute, as firmware is running in ARM TZ
         * region.
         */
        mmu_config_range((void *)_ttb, REGION_SIZE(ttb), secure_mem);
        mmu_config_range((void *)_dram, sdram_size_mb() * MiB, secure_mem);
        /* IO space has the MSB set and is divided into 4 sub-regions:
         * * NCB
         * * SLI
         * * RSL
         * * AP
         */
        mmu_config_range((void *)IO_SPACE_START, IO_SPACE_SIZE, devmem);
 
        mmu_enable();
}