Hi Arnd, Kevin, Olof, forgot that I had another kconfig option for LPAE support sitting in my tree when sending the devicetree pulls. So please find below enablement of ARCH_DMA_ADDR_T_64BIT for LPAE builds. Thanks Heiko The following changes since commit bf3c4b517c2e2217e6cd53bc7a44e321bb799d75: ARM: rockchip: enable ZONE_DMA for non 64-bit capable peripherals (2017-08-01 00:57:59 +0200) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git tags/v4.14-rockchip-soc32-2 for you to fetch changes up to 58ed5e5733b293f03a302612d395ac747021b946: ARM: rockchip: select ARCH_DMA_ADDR_T_64BIT for LPAE (2017-08-06 13:06:05 +0200) ---------------------------------------------------------------- Enable the ARCH_DMA_ADDR_T_64BIT kconfig option for LPAE builds, as some peripherals like the Mali gpu do support 64bit dma addresses. ---------------------------------------------------------------- Tao Huang (1): ARM: rockchip: select ARCH_DMA_ADDR_T_64BIT for LPAE arch/arm/mach-rockchip/Kconfig | 1 + 1 file changed, 1 insertion(+)