lkml.org 
[lkml]   [2021]   [Dec]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 7/7] arm64: dts: exynos: Add initial E850-96 board support
From
On 15/12/2021 17:09, Sam Protsenko wrote:
> E850-96 is a 96boards development board manufactured by WinLink. It
> incorporates Samsung Exynos850 SoC, and is compatible with 96boards
> mezzanine boards [1], as it follows 96boards standards.
>
> This patch adds minimal support for E850-96 board. Next features are
> enabled in board dts file and verified with minimal BusyBox rootfs:
>
> * User buttons
> * LEDs
> * Serial console
> * Watchdog timers
> * RTC
> * eMMC
>
> [1] https://www.96boards.org/products/mezzanine/
>
> Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
> ---
> arch/arm64/boot/dts/exynos/Makefile | 3 +-
> .../boot/dts/exynos/exynos850-e850-96.dts | 157 ++++++++++++++++++
> 2 files changed, 159 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm64/boot/dts/exynos/exynos850-e850-96.dts
>
> diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
> index b41e86df0a84..803548ccc537 100644
> --- a/arch/arm64/boot/dts/exynos/Makefile
> +++ b/arch/arm64/boot/dts/exynos/Makefile
> @@ -3,4 +3,5 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \
> exynos5433-tm2.dtb \
> exynos5433-tm2e.dtb \
> exynos7-espresso.dtb \
> - exynosautov9-sadk.dtb
> + exynosautov9-sadk.dtb \
> + exynos850-e850-96.dtb
> diff --git a/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts b/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts
> new file mode 100644
> index 000000000000..fd611906d81c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts
> @@ -0,0 +1,157 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * WinLink E850-96 board device tree source
> + *
> + * Copyright (C) 2018 Samsung Electronics Co., Ltd.
> + * Copyright (C) 2021 Linaro Ltd.
> + *
> + * Device tree source file for WinLink's E850-96 board which is based on
> + * Samsung Exynos850 SoC.
> + */
> +
> +/dts-v1/;
> +
> +#include "exynos850.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +
> +#define BOARD_ID 0x0
> +#define BOARD_REV 0x2
> +
> +/ {
> + model = "WinLink E850-96 board";
> + compatible = "winlink,e850-96", "samsung,exynos850";
> + board_id = <BOARD_ID>;
> + board_rev = <BOARD_REV>;
> +
> + chosen {
> + stdout-path = &serial_0;
> + };
> +

You did not define memory node. Do you expect bootloader to fill it?
Does it change between different boards?


Best regards,
Krzysztof

\
 
 \ /
  Last update: 2021-12-15 18:04    [W:0.274 / U:0.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site