arm64: dts: rockchip: increase atomic coherent pool size for rk3399/rk3328

The Seagate Expansion Portable Drive HDD (ext4 file system,
idVendor=0bc2, idProduct=2321) is reported to fail to work
on the rk3399/rk3328 platforms USB 3.0 interface with the
following error message when do read/write operation by dd
command:

xhci-hcd xhci-hcd.11.auto: Ring expansion failed

It's because that xHCI use the dma_pool_alloc() to allocate
DMA buffer for segment_pool with GFP_ATOMIC flag, however,
the default 256 KiB coherent pool is too small for the USB
HDD, so increase it to 1024 KiB to make sure that devices
will be able to allocate their DMA buffers with GFP_ATOMIC
flag.

Change-Id: Ic94c9ceeeb4adabe860af46546550aa8f73f11ca
Signed-off-by: William Wu <william.wu@rock-chips.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp-avb.dts b/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp-avb.dts
index 2e3acc91a581..3d7bd0c4c2c7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp-avb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp-avb.dts
@@ -10,7 +10,7 @@
 	model = "Rockchip RK3399 Excavator Board edp avb (Android)";
 	compatible = "rockchip,android", "rockchip,rk3399-excavator-edp-avb", "rockchip,rk3399";
 	chosen {
-	bootargs = "earlycon=uart8250,mmio32,0xff1a0000 swiotlb=1 console=ttyFIQ0 androidboot.baseband=N/A androidboot.veritymode=enforcing androidboot.hardware=rk30board androidboot.console=ttyFIQ0 init=/init initrd=0x62000001,0x00800000";
+	bootargs = "earlycon=uart8250,mmio32,0xff1a0000 swiotlb=1 console=ttyFIQ0 androidboot.baseband=N/A androidboot.veritymode=enforcing androidboot.hardware=rk30board androidboot.console=ttyFIQ0 init=/init initrd=0x62000001,0x00800000 coherent_pool=1m";
 	};
 
 };