platform: generic: metanoia/mt2824: configure PMA for DSP memory regions 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>
diff --git a/platform/generic/metanoia/mt2824/mt2824.c b/platform/generic/metanoia/mt2824/mt2824.c index a34304b..79641dd 100644 --- a/platform/generic/metanoia/mt2824/mt2824.c +++ b/platform/generic/metanoia/mt2824/mt2824.c
@@ -6,13 +6,60 @@ * Jun Chang <jun.chang@metanoia-comm.com> */ +#include <andes/andes_pma.h> #include <andes/andes_pmu.h> #include <andes/andes_sbi.h> #include <platform_override.h> +#include <sbi_utils/fdt/fdt_helper.h> + +#define MT2824_XOR_RAM_BASE 0x00100000ULL +#define MT2824_XOR_RAM_SIZE 0x00040000ULL + +#define MT2824_MRAS_MEM_BASE 0x60000000ULL +#define MT2824_MRAS_MEM_SIZE 0x20000000ULL + +#define MT2824_RSCTABLE_BASE 0x81000000ULL +#define MT2824_RSCTABLE_SIZE 0x00010000ULL + +static const struct andes_pma_region metanoia_mt2824_pma_regions[] = { + { + .pa = MT2824_XOR_RAM_BASE, + .size = MT2824_XOR_RAM_SIZE, + .flags = ANDES_PMACFG_ETYP_NAPOT | + ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF, + }, + { + .pa = MT2824_MRAS_MEM_BASE, + .size = MT2824_MRAS_MEM_SIZE, + .flags = ANDES_PMACFG_ETYP_NAPOT | + ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF, + }, + { + .pa = MT2824_RSCTABLE_BASE, + .size = MT2824_RSCTABLE_SIZE, + .flags = ANDES_PMACFG_ETYP_NAPOT | + ANDES_PMACFG_MTYP_MEM_NON_CACHE_BUF, + }, +}; + +static int metanoia_mt2824_final_init(bool cold_boot) +{ + void *fdt = fdt_get_address_rw(); + int rc; + + /* Set the DSP memory regions attributes */ + rc = andes_pma_setup_regions(fdt, metanoia_mt2824_pma_regions, + array_size(metanoia_mt2824_pma_regions)); + if (rc) + return rc; + + return generic_final_init(cold_boot); +} static int metanoia_mt2824_platform_init(const void *fdt, int nodeoff, const struct fdt_match *match) { + generic_platform_ops.final_init = metanoia_mt2824_final_init; generic_platform_ops.extensions_init = andes_pmu_extensions_init; generic_platform_ops.pmu_init = andes_pmu_init; generic_platform_ops.vendor_ext_provider = andes_sbi_vendor_ext_provider;