mirror of
https://github.com/riscv-software-src/opensbi.git
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Benoît Monin
6ad246a149
Set up the memory attribute for the XOR RAM, MRAS memory, and RSC table used by the DSPs as non-cacheable and bufferable during final init. Signed-off-by: Benoît Monin <benoit.monin@bootlin.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20260902-mt2824-pma-v1-1-ada8f836365d@bootlin.com Signed-off-by: Anup Patel <anup@brainfault.org>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
// SPDX-License-Identifier: BSD-2-Clause
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/*
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* Copyright (C) 2026 Metanoia Communication Inc.
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*
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* Authors:
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* Jun Chang <jun.chang@metanoia-comm.com>
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*/
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#include <andes/andes_pma.h>
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#include <andes/andes_pmu.h>
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#include <andes/andes_sbi.h>
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#include <platform_override.h>
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#include <sbi_utils/fdt/fdt_helper.h>
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#define MT2824_XOR_RAM_BASE 0x00100000ULL
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#define MT2824_XOR_RAM_SIZE 0x00040000ULL
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#define MT2824_MRAS_MEM_BASE 0x60000000ULL
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#define MT2824_MRAS_MEM_SIZE 0x20000000ULL
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#define MT2824_RSCTABLE_BASE 0x81000000ULL
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#define MT2824_RSCTABLE_SIZE 0x00010000ULL
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static const struct andes_pma_region metanoia_mt2824_pma_regions[] = {
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{
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.pa = MT2824_XOR_RAM_BASE,
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.size = MT2824_XOR_RAM_SIZE,
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.flags = ANDES_PMACFG_ETYP_NAPOT |
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ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF,
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},
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{
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.pa = MT2824_MRAS_MEM_BASE,
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.size = MT2824_MRAS_MEM_SIZE,
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.flags = ANDES_PMACFG_ETYP_NAPOT |
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ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF,
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},
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{
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.pa = MT2824_RSCTABLE_BASE,
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.size = MT2824_RSCTABLE_SIZE,
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.flags = ANDES_PMACFG_ETYP_NAPOT |
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ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF,
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},
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};
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static int metanoia_mt2824_final_init(bool cold_boot)
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{
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void *fdt = fdt_get_address_rw();
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int rc;
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/* Set the DSP memory regions attributes */
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rc = andes_pma_setup_regions(fdt, metanoia_mt2824_pma_regions,
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array_size(metanoia_mt2824_pma_regions));
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if (rc)
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return rc;
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return generic_final_init(cold_boot);
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}
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static int metanoia_mt2824_platform_init(const void *fdt, int nodeoff,
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const struct fdt_match *match)
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{
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generic_platform_ops.final_init = metanoia_mt2824_final_init;
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generic_platform_ops.extensions_init = andes_pmu_extensions_init;
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generic_platform_ops.pmu_init = andes_pmu_init;
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generic_platform_ops.vendor_ext_provider = andes_sbi_vendor_ext_provider;
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return 0;
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}
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static const struct fdt_match metanoia_mt2824_match[] = {
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{ .compatible = "metanoia,mt2824" },
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{ /* sentinel */ }
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};
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const struct fdt_driver metanoia_mt2824 = {
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.match_table = metanoia_mt2824_match,
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.init = metanoia_mt2824_platform_init,
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};
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