u-boot-brain/arch/arm/dts/rk3399-nanopi-neo4-u-boot.dtsi

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
 */

#include "rk3399-nanopi4-u-boot.dtsi"
#include "rk3399-sdram-ddr3-1866.dtsi"
rockchip: rk3399: Add Nanopi NEO4 board support Add initial support for Nanopi NEO4 board. Specification - Rockchip RK3399 - 1GB DDR3-1866 - SD card slot - eMMC Socket - RTL8211E 1Gbps - AP6212 WiFI/BT - HDMI In/Out, DP, MIPI CSI - USB 3.0, 2.0 - USB Type C power and data - GPIO expansion ports - DC 5V/3A Commit details of rk3399-nanopi-neo4.dts sync from Linux: "arm64: dts: rockchip: Add Nanopi NEO4 initial support" (sha1: 092470b537f19788d957aed12d835a179b606014) Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> 2019-05-17 19:29:39 +09:00			`// SPDX-License-Identifier: GPL-2.0+`
			`/*`
			`* Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>`
			`*/`

			`#include "rk3399-nanopi4-u-boot.dtsi"`
rockchip: dts: rk3399: nanopi-neo4: Use DDR3-1866 dtsi Use DDR3-1866 2GB ddr timings dtsi for 1GB NanoPi Neo4 board. Since sdram rk3399 support dynamic stride and rank detection it can able to detect 1GB ddr eventough the timings are meant for dual channel, 2GB size. Bootchain after and before this change are: TPL -> SPL -> U-Boot proper rkbin -> SPL -> U-Boot proper This certainly fix the second channel data training initialization since we have dynamic rank, stride where second channel capabilities are clear or memset to 0. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <Kever.yang@rock-chips.com> 2019-07-16 03:28:56 +09:00			`#include "rk3399-sdram-ddr3-1866.dtsi"`