1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2017 Andes Technology Corporation
4 * Rick Chen, Andes Technology Corporation <rick@andestech.com>
7 #ifndef _ASM_RISCV_CACHE_H
8 #define _ASM_RISCV_CACHE_H
11 * The current upper bound for RISCV L1 data cache line sizes is 32 bytes.
12 * We use that value for aligning DMA buffers unless the board config has
13 * specified an alternate cache line size.
15 #ifdef CONFIG_SYS_CACHELINE_SIZE
16 #define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
18 #define ARCH_DMA_MINALIGN 32
21 #endif /* _ASM_RISCV_CACHE_H */