From mboxrd@z Thu Jan 1 00:00:00 1970 From: huangtao@rock-chips.com (Tao Huang) Date: Fri, 28 Jul 2017 14:40:02 +0800 Subject: [PATCH] ARM: rockchip: enable ZONE_DMA for non 64-bit capable peripherals Message-ID: <1501224002-9966-1-git-send-email-huangtao@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Most IP cores on ARM Rockchip platforms can only address 32 bits of physical memory for DMA. Thus ZONE_DMA should be enabled when LPAE is activated. Signed-off-by: Tao Huang --- arch/arm/mach-rockchip/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index 9ad84cd01ba0..fafd3d7f9f8c 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -16,6 +16,7 @@ config ARCH_ROCKCHIP select ROCKCHIP_TIMER select ARM_GLOBAL_TIMER select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK + select ZONE_DMA if ARM_LPAE help Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs containing the RK2928, RK30xx and RK31xx series. -- 2.7.4