From 2f2577a30f2a6b903e15ede7a7962e876fcad618 Mon Sep 17 00:00:00 2001
From: "Huang, Tao" <huangtao@rock-chips.com>
Date: Thu, 1 Jun 2017 18:42:13 +0800
Subject: [PATCH] ARM: rockchip: enable ZONE_DMA for non 64-bit capable
 peripherals

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.

Change-Id: I3fce3e01ba31270f066f49bc14fc2078c70d83ea
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
---
 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 ae4eb7cc4bcc..fadc2dc0c616 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -15,6 +15,7 @@ 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.
-- 
2.34.1