Re: [PATCH v2 2/2] arm64: dts: Add Mediatek X20 Development Board support
From: Matthias Brugger <matthias.bgg@gmail.com>
Date: 2018-07-16 13:24:52
Also in:
linux-arm-kernel, linux-mediatek, lkml
Hi Manivanna, On 05/06/18 18:34, Manivannan Sadhasivam wrote:
quoted hunk ↗ jump to hunk
Add initial device tree support for Mediatek X20 Development Board based on MT6797 Deca core SoC. This board is one of the 96Boards Consumer Edition platform. Signed-off-by: Manivannan Sadhasivam <redacted> --- arch/arm64/boot/dts/mediatek/Makefile | 1 + .../boot/dts/mediatek/mt6797-x20-dev.dts | 33 +++++++++++++++++++ 2 files changed, 34 insertions(+) create mode 100644 arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dtsdiff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile index ac17f60f998c..5b7fd6ad96e4 100644 --- a/arch/arm64/boot/dts/mediatek/Makefile +++ b/arch/arm64/boot/dts/mediatek/Makefile@@ -3,5 +3,6 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt2712-evb.dtb dtb-$(CONFIG_ARCH_MEDIATEK) += mt6755-evb.dtb dtb-$(CONFIG_ARCH_MEDIATEK) += mt6795-evb.dtb dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-evb.dtb +dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-x20-dev.dtb dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-evb.dtbdiff --git a/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts b/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts new file mode 100644 index 000000000000..2c09ca95d9e2 --- /dev/null +++ b/arch/arm64/boot/dts/mediatek/mt6797-x20-dev.dts@@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree Source for MediaTek X20 Development Board + * + * Copyright (C) 2018, Linaro Ltd. + * + */ + +/dts-v1/; + +#include "mt6797.dtsi" + +/ { + model = "Mediatek X20 Development Board"; + compatible = "archermind,mt6797-x20-dev", "mediatek,mt6797"; + + aliases { + serial0 = &uart1; + };
Sorry for the late answer. Why did you use uart1 instead of uart0? I know that uart0 is used by the bootloader, but because of their exotic flash procedure I find it quite useful to see this messages in my serial connection. Of course you can only use 921600 baudrate then.
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x1e605000>;How comes this strange number for the memory size? BTW do you know the differences between the EVB board and the x20 one? I used the evb dts for booting up to now. Best regards, Matthias
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+};
+
+&uart1 {
+ status = "okay";
+};