mmu_operations.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/mmio.h>
#include <arch/mmu.h>
#include <symbols.h>
#include <soc/symbols.h>
#include <soc/infracfg.h>
#include <soc/mcucfg.h>
#include <soc/mmu_operations.h>
 
void mtk_soc_after_dram(void)
{
        mmu_config_range(_dram_dma, REGION_SIZE(dram_dma),
                         NONSECURE_UNCACHED_MEM);
        mtk_mmu_disable_l2c_sram();
}
 
void mtk_soc_disable_l2c_sram(void)
{
        /* Return L2C SRAM back to L2 cache. Set it to 512KiB which is the max
         * available L2 cache for A53 in MT8173. */
        write32(&mt8173_mcucfg->mp0_ca7l_cache_config, 3 << 8);
        /* turn off the l2c sram clock */
        write32(&mt8173_infracfg->infra_pdn0, L2C_SRAM_PDN);
}