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 --- arch/riscv/Kconfig | 5 +++++ arch/riscv/include/asm/types.h | 4 ++++ 2 files changed, 9 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index aaa3b833a5..7ab1ccff40 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -152,6 +152,11 @@ config 32BIT config 64BIT bool
+config DMA_ADDR_T_64BIT + bool + depends on 64BIT + default n + 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;