Unverified Commit 94f68f3a authored Aug 21, 2019 by Sunil Mohan Adapa Committed by Maxime Ripard Aug 23, 2019

arm64: dts: allwinner: a64: Add A64 OlinuXino board (with eMMC)

A64 OLinuXino board from Olimex has three variants with onboard eMMC:
A64-OLinuXino-1Ge16GW, A64-OLinuXino-1Ge4GW and A64-OLinuXino-2Ge8G-IND. In
addition, there are two variants without eMMC. One without eMMC and one with SPI
flash. This suggests the need for separate device tree for the three eMMC
variants.

This patch has been tested on A64-OLinuXino-1Ge16GW with Linux 5.0 from Debain.
Basic benchmarks using Flexible IO Tester show reasonable performance from the
eMMC.

eMMC - Random Write: 21.3MiB/s
eMMC - Sequential Write: 68.2MiB/s
SD Card - Random Write: 1690KiB/s
SD Card - Sequential Write: 11.0MiB/s

Changes:

  v3: Separate dts for eMMC variants

  v2: Fix descriptions for VCC and VCCQ

Link: https://github.com/armbian/build/commit/174953de1eb09e6aa1ef7075066b573dba625398


Signed-off-by: Martin Ayotte <martinayotte@gmail.com>
[sunil@medhas.org Fix descriptions for VCC and VCCQ, separate dts for eMMC]
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Tested-by: Sunil Mohan Adapa <sunil@medhas.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

parent 20632886

arch/arm64/boot/dts/allwinner/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-bananapi-m64.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-nanopi-a64.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-oceanic-5205-5inmfd.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-olinuxino.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-olinuxino-emmc.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-orangepi-win.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pine64-lts.dtb
		dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pine64-plus.dtb sun50i-a64-pine64.dtb

arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts

0 → 100644

+23 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
		/*
		* Copyright (C) 2018 Martin Ayotte <martinayotte@gmail.com>
		* Copyright (C) 2019 Sunil Mohan Adapa <sunil@medhas.org>
		*/

		#include "sun50i-a64-olinuxino.dts"

		/ {
		model = "Olimex A64-Olinuxino-eMMC";
		compatible = "olimex,a64-olinuxino-emmc", "allwinner,sun50i-a64";
		};

		&mmc2 {
		pinctrl-names = "default";
		pinctrl-0 = <&mmc2_pins>;
		vmmc-supply = <&reg_dcdc1>;
		vqmmc-supply = <&reg_dcdc1>;
		bus-width = <8>;
		non-removable;
		cap-mmc-hw-reset;
		status = "okay";
		};

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