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Diffstat (limited to 'platform/generic/include/andes/andes45_pma.h')
| -rw-r--r-- | platform/generic/include/andes/andes45_pma.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/platform/generic/include/andes/andes45_pma.h b/platform/generic/include/andes/andes45_pma.h new file mode 100644 index 0000000..37ec77c --- /dev/null +++ b/platform/generic/include/andes/andes45_pma.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 Renesas Electronics Corp. + */ + +#ifndef _ANDES45_PMA_H_ +#define _ANDES45_PMA_H_ + +#include <sbi/sbi_types.h> + +#define ANDES45_MAX_PMA_REGIONS 16 + +/* Naturally aligned power of 2 region */ +#define ANDES45_PMACFG_ETYP_NAPOT 3 + +/* Memory, Non-cacheable, Bufferable */ +#define ANDES45_PMACFG_MTYP_MEM_NON_CACHE_BUF (3 << 2) + +/** + * struct andes45_pma_region - Describes PMA regions + * + * @pa: Address to be configured in the PMA + * @size: Size of the region + * @flags: Flags to be set for the PMA region + * @dt_populate: Boolean flag indicating if the DT entry should be + * populated for the given PMA region + * @shared_dma: Boolean flag if set "shared-dma-pool" property will + * be set in the DT node + * @no_map: Boolean flag if set "no-map" property will be set in the + * DT node + * @dma_default: Boolean flag if set "linux,dma-default" property will + * be set in the DT node. Note Linux expects single node + * with this property set. + */ +struct andes45_pma_region { + unsigned long pa; + unsigned long size; + u8 flags:7; + bool dt_populate; + bool shared_dma; + bool no_map; + bool dma_default; +}; + +int andes45_pma_setup_regions(const struct andes45_pma_region *pma_regions, + unsigned int pma_regions_count); + +#endif /* _ANDES45_PMA_H_ */ |