dma_addr_t holds any valid DMA address. If the DMA API only uses 32/64-bit addresses, dma_addr_t need only be 32/64 bits wide.
Signed-off-by: Padmarao Begari padmarao.begari@microchip.com Reviewed-by: Anup Patel anup.patel@wdc.com Reviewed-by: Bin Meng bin.meng@windriver.com Reviewed-by: Rick Chen rick@andestech.com --- arch/riscv/Kconfig | 4 ++++ arch/riscv/include/asm/types.h | 4 ++++ 2 files changed, 8 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 30b05408b1..55eaee2da6 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -152,6 +152,10 @@ config 32BIT config 64BIT bool
+config DMA_ADDR_T_64BIT + bool + default y if 64BIT + config SIFIVE_CLINT bool depends on RISCV_MMODE || SPL_RISCV_MMODE diff --git a/arch/riscv/include/asm/types.h b/arch/riscv/include/asm/types.h index 403cf9a48f..b800b2d221 100644 --- a/arch/riscv/include/asm/types.h +++ b/arch/riscv/include/asm/types.h @@ -29,7 +29,11 @@ typedef unsigned short umode_t;
#include <stddef.h>
+#ifdef CONFIG_DMA_ADDR_T_64BIT +typedef u64 dma_addr_t; +#else typedef u32 dma_addr_t; +#endif
typedef unsigned long phys_addr_t; typedef unsigned long phys_size_t;