On Fri, 17 Dec 2021 at 03:30, Sam Protsenko <semen.protsenko@xxxxxxxxxx> 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@xxxxxxxxxx> > --- > Changes in v2: > - Removed board_id and board_rev properties > - Removed BOARD_ID and BOARD_REV constants > - Put dtb in alphabetical order in Makefile > - Added "color" and "function" properties to LED nodes > - Sorted all phandle overrides by phandle name > - Removed 'broken-cd' property in eMMC node > - Added memory node > > arch/arm64/boot/dts/exynos/Makefile | 1 + > .../boot/dts/exynos/exynos850-e850-96.dts | 175 ++++++++++++++++++ > 2 files changed, 176 insertions(+) > 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..be9df8e85c59 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 \ > + exynos850-e850-96.dtb \ > exynosautov9-sadk.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..952a47c417d4 > --- /dev/null > +++ b/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts > @@ -0,0 +1,175 @@ > +// 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> > +#include <dt-bindings/leds/common.h> > + > +/ { > + model = "WinLink E850-96 board"; > + compatible = "winlink,e850-96", "samsung,exynos850"; > + > + chosen { > + stdout-path = &serial_0; > + }; > + > + /* > + * 4 GiB eMCP: > + * - 2 GiB at 0x80000000 > + * - 2 GiB at 0x880000000 > + * > + * 0xbab00000..0xbfffffff: secure memory (85 MiB). > + */ > + memory@80000000 { > + device_type = "memory"; > + reg = <0x0 0x80000000 0x3ab00000>, > + <0x0 0xc0000000 0x40000000>, > + <0x8 0x80000000 0x80000000>; > + }; > + > + gpio-keys { > + compatible = "gpio-keys"; > + pinctrl-names = "default"; > + pinctrl-0 = <&key_voldown_pins &key_volup_pins>; > + > + volume-down-key { > + label = "Volume Down"; > + linux,code = <KEY_VOLUMEDOWN>; > + gpios = <&gpa1 0 GPIO_ACTIVE_LOW>; > + }; > + > + volume-up-key { > + label = "Volume Up"; > + linux,code = <KEY_VOLUMEUP>; > + gpios = <&gpa0 7 GPIO_ACTIVE_LOW>; > + }; > + }; > + > + leds { > + compatible = "gpio-leds"; > + > + /* HEART_BEAT_LED */ > + user_led1: led-1 { > + label = "yellow:user1"; > + gpios = <&gpg2 2 GPIO_ACTIVE_HIGH>; > + color = <LED_COLOR_ID_YELLOW>; > + function = LED_FUNCTION_HEARTBEAT; > + linux,default-trigger = "heartbeat"; > + }; > + > + /* eMMC_LED */ > + user_led2: led-2 { > + label = "yellow:user2"; > + gpios = <&gpg2 3 GPIO_ACTIVE_HIGH>; > + color = <LED_COLOR_ID_YELLOW>; > + linux,default-trigger = "mmc0"; > + }; > + > + /* SD_LED */ > + user_led3: led-3 { > + label = "white:user3"; > + gpios = <&gpg2 4 GPIO_ACTIVE_HIGH>; > + color = <LED_COLOR_ID_WHITE>; > + function = LED_FUNCTION_SD; > + linux,default-trigger = "mmc2"; > + }; > + > + /* WIFI_LED */ > + wlan_active_led: led-4 { > + label = "yellow:wlan"; > + gpios = <&gpg2 6 GPIO_ACTIVE_HIGH>; > + color = <LED_COLOR_ID_YELLOW>; > + function = LED_FUNCTION_WLAN; > + linux,default-trigger = "phy0tx"; > + default-state = "off"; > + }; > + > + /* BLUETOOTH_LED */ > + bt_active_led: led-5 { > + label = "blue:bt"; > + gpios = <&gpg2 7 GPIO_ACTIVE_HIGH>; > + color = <LED_COLOR_ID_BLUE>; > + function = LED_FUNCTION_BLUETOOTH; > + linux,default-trigger = "hci0rx"; > + default-state = "off"; > + }; > + }; > +}; > + > +&mmc_0 { > + status = "okay"; > + mmc-hs200-1_8v; > + mmc-hs400-1_8v; > + cap-mmc-highspeed; > + non-removable; > + mmc-hs400-enhanced-strobe; > + card-detect-delay = <200>; > + clock-frequency = <800000000>; > + bus-width = <8>; > + samsung,dw-mshc-ciu-div = <3>; > + samsung,dw-mshc-sdr-timing = <0 4>; > + samsung,dw-mshc-ddr-timing = <2 4>; > + samsung,dw-mshc-hs400-timing = <0 2>; > + > + pinctrl-names = "default"; > + pinctrl-0 = <&sd0_clk_pins &sd0_cmd_pins &sd0_rdqs_pins &sd0_nreset_pins > + &sd0_bus1_pins &sd0_bus4_pins &sd0_bus8_pins>; > +}; > + > +&oscclk { > + clock-frequency = <26000000>; > +}; > + > +&rtc { > + status = "okay"; > +}; > + > +&rtcclk { > + clock-frequency = <32768>; > +}; > + > +&serial_0 { > + status = "okay"; > + pinctrl-names = "default"; > + pinctrl-0 = <&uart1_pins>; > +}; > + > +&usi_uart { > + samsung,clkreq-on; /* needed for UART mode */ > + status = "okay"; > +}; > + > +&watchdog_cl0 { > + status = "okay"; > +}; > + > +&watchdog_cl1 { > + status = "okay"; > +}; > + > +&pinctrl_alive { Forgot to order pinctrl node. Will send v3 soon, sorry for the noise. > + key_voldown_pins: key-voldown-pins { > + samsung,pins = "gpa1-0"; > + samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>; > + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; > + }; > + > + key_volup_pins: key-volup-pins { > + samsung,pins = "gpa0-7"; > + samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>; > + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; > + samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>; > + }; > +}; > -- > 2.30.2 >
