|  | /* | 
|  | * Copyright (c) 2018 Yurii Hamann | 
|  | * | 
|  | * SPDX-License-Identifier: Apache-2.0 | 
|  | */ | 
|  |  | 
|  | /dts-v1/; | 
|  | #include <st/f7/stm32f746Xg.dtsi> | 
|  | #include <st/f7/stm32f746nghx-pinctrl.dtsi> | 
|  | #include "arduino_r3_connector.dtsi" | 
|  | #include <zephyr/dt-bindings/input/input-event-codes.h> | 
|  | #include <zephyr/dt-bindings/memory-attr/memory-attr.h> | 
|  | #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h> | 
|  |  | 
|  | / { | 
|  | model = "STMicroelectronics STM32F746G DISCOVERY board"; | 
|  | compatible = "st,stm32f746g-disco"; | 
|  |  | 
|  | chosen { | 
|  | zephyr,console = &usart1; | 
|  | zephyr,shell-uart = &usart1; | 
|  | zephyr,sram = &sram0; | 
|  | zephyr,flash = &flash0; | 
|  | zephyr,dtcm = &dtcm; | 
|  | zephyr,flash-controller = &n25q128a1; | 
|  | zephyr,display = <dc; | 
|  | zephyr,touch = &ft5336; | 
|  | }; | 
|  |  | 
|  | leds { | 
|  | compatible = "gpio-leds"; | 
|  |  | 
|  | green_led_1: led_1 { | 
|  | gpios = <&gpioi 1 GPIO_ACTIVE_HIGH>; | 
|  | label = "User LD1"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | gpio_keys { | 
|  | compatible = "gpio-keys"; | 
|  |  | 
|  | user_button: button { | 
|  | label = "User"; | 
|  | gpios = <&gpioi 11 GPIO_ACTIVE_HIGH>; | 
|  | zephyr,code = <INPUT_KEY_0>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | lvgl_pointer { | 
|  | compatible = "zephyr,lvgl-pointer-input"; | 
|  | input = <&ft5336>; | 
|  | }; | 
|  |  | 
|  | sdram1: sdram@c0000000 { | 
|  | compatible = "zephyr,memory-region", "mmio-sram"; | 
|  | device_type = "memory"; | 
|  | reg = <0xc0000000 DT_SIZE_M(16)>; | 
|  | zephyr,memory-region = "SDRAM1"; | 
|  | zephyr,memory-attr = <DT_MEM_ARM(ATTR_MPU_RAM)>; | 
|  | }; | 
|  |  | 
|  | /* Declare attributes for the External flash Mem to allow code execution there */ | 
|  | ext_memory: memory@90000000 { | 
|  | compatible = "zephyr,memory-region"; | 
|  | reg = <0x90000000 DT_SIZE_M(16)>; /* max addressable area */ | 
|  | zephyr,memory-region = "EXTMEM"; | 
|  | /* Override ATTR_MPU_EXTMEM with ATTR_MPU_IO to allow access */ | 
|  | zephyr,memory-attr = <DT_MEM_ARM(ATTR_MPU_IO)>; | 
|  | }; | 
|  |  | 
|  | aliases { | 
|  | led0 = &green_led_1; | 
|  | sw0 = &user_button; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &clk_lsi { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &clk_hse { | 
|  | clock-frequency = <DT_FREQ_M(25)>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &pll { | 
|  | div-m = <25>; | 
|  | mul-n = <432>; | 
|  | div-p = <2>; | 
|  | div-q = <9>; | 
|  | clocks = <&clk_hse>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &pllsai { | 
|  | div-m = <25>; | 
|  | mul-n = <384>; | 
|  | div-r = <5>; | 
|  | div-divr = <8>; | 
|  | clocks = <&clk_hse>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &rcc { | 
|  | clocks = <&pll>; | 
|  | clock-frequency = <DT_FREQ_M(216)>; | 
|  | ahb-prescaler = <1>; | 
|  | apb1-prescaler = <4>; | 
|  | apb2-prescaler = <2>; | 
|  | }; | 
|  |  | 
|  | &i2c1 { | 
|  | pinctrl-0 = <&i2c1_scl_pb8 &i2c1_sda_pb9>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  | clock-frequency = <I2C_BITRATE_FAST>; | 
|  | }; | 
|  |  | 
|  | &i2c3 { | 
|  | pinctrl-0 = <&i2c3_scl_ph7 &i2c3_sda_ph8>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  | clock-frequency = <I2C_BITRATE_FAST>; | 
|  |  | 
|  | ft5336: ft5336@38 { | 
|  | compatible = "focaltech,ft5336"; | 
|  | reg = <0x38>; | 
|  | int-gpios = <&gpioi 13 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &spi2 { | 
|  | pinctrl-0 = <&spi2_sck_pi1 &spi2_miso_pb14 &spi2_mosi_pb15>; | 
|  | pinctrl-names = "default"; | 
|  | cs-gpios = <&gpioa 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &usart1 { | 
|  | pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pb7>; | 
|  | pinctrl-names = "default"; | 
|  | current-speed = <115200>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &usart6 { | 
|  | pinctrl-0 = <&usart6_tx_pc6 &usart6_rx_pc7>; | 
|  | pinctrl-names = "default"; | 
|  | current-speed = <115200>; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | zephyr_udc0: &usbotg_fs { | 
|  | pinctrl-0 = <&usb_otg_fs_dm_pa11 &usb_otg_fs_dp_pa12>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &timers3 { | 
|  | st,prescaler = <10000>; | 
|  | status = "okay"; | 
|  |  | 
|  | pwm3: pwm { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&tim3_ch1_pb4>; | 
|  | pinctrl-names = "default"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &rtc { | 
|  | clocks = <&rcc STM32_CLOCK(APB1, 28)>, | 
|  | <&rcc STM32_SRC_LSI RTC_SEL(2)>; | 
|  | status = "okay"; | 
|  |  | 
|  | backup_regs { | 
|  | status = "okay"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &sdmmc1 { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <&sdmmc1_d0_pc8 &sdmmc1_d1_pc9 | 
|  | &sdmmc1_d2_pc10 &sdmmc1_d3_pc11 | 
|  | &sdmmc1_ck_pc12 &sdmmc1_cmd_pd2>; | 
|  | pinctrl-names = "default"; | 
|  | cd-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>; | 
|  | disk-name = "SD"; | 
|  | }; | 
|  |  | 
|  | &mac { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <ð_rxd0_pc4 | 
|  | ð_rxd1_pc5 | 
|  | ð_ref_clk_pa1 | 
|  | ð_crs_dv_pa7 | 
|  | ð_tx_en_pg11 | 
|  | ð_txd0_pg13 | 
|  | ð_txd1_pg14>; | 
|  | pinctrl-names = "default"; | 
|  | phy-connection-type = "rmii"; | 
|  | phy-handle = <ð_phy>; | 
|  | }; | 
|  |  | 
|  | &mdio { | 
|  | status = "okay"; | 
|  | pinctrl-0 = <ð_mdio_pa2 ð_mdc_pc1>; | 
|  | pinctrl-names = "default"; | 
|  |  | 
|  | eth_phy: ethernet-phy@0 { | 
|  | compatible = "ethernet-phy"; | 
|  | reg = <0x00>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &quadspi { | 
|  | pinctrl-0 = <&quadspi_clk_pb2 &quadspi_bk1_ncs_pb6 | 
|  | &quadspi_bk1_io0_pd11 &quadspi_bk1_io1_pd12 | 
|  | &quadspi_bk1_io2_pe2 &quadspi_bk1_io3_pd13>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  |  | 
|  | n25q128a1: qspi-nor-flash@0 { | 
|  | compatible = "st,stm32-qspi-nor"; | 
|  | reg = <0>; | 
|  | size = <DT_SIZE_M(128)>; /* 128 Mbits */ | 
|  | qspi-max-frequency = <72000000>; | 
|  | cs-high-time = <4>; /* >= 50 ns */ | 
|  | status = "okay"; | 
|  |  | 
|  | partitions { | 
|  | compatible = "fixed-partitions"; | 
|  | #address-cells = <1>; | 
|  | #size-cells = <1>; | 
|  |  | 
|  | slot1_partition: partition@0 { | 
|  | label = "image-1"; | 
|  | reg = <0x00000000 DT_SIZE_K(640)>; | 
|  | }; | 
|  |  | 
|  | storage_partition: partition@a0000 { | 
|  | label = "storage"; | 
|  | reg = <0x000a0000 DT_SIZE_M(15)>; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &fmc { | 
|  | pinctrl-0 = <&fmc_nbl0_pe0 &fmc_nbl1_pe1 | 
|  | &fmc_sdclk_pg8 &fmc_sdnwe_ph5 &fmc_sdcke0_pc3 | 
|  | &fmc_sdne0_ph3 &fmc_sdnras_pf11 &fmc_sdncas_pg15 | 
|  | &fmc_a0_pf0 &fmc_a1_pf1 &fmc_a2_pf2 &fmc_a3_pf3 &fmc_a4_pf4 | 
|  | &fmc_a5_pf5 &fmc_a6_pf12 &fmc_a7_pf13 &fmc_a8_pf14 | 
|  | &fmc_a9_pf15 &fmc_a10_pg0 &fmc_a11_pg1 | 
|  | &fmc_a14_pg4 &fmc_a15_pg5 &fmc_d0_pd14 &fmc_d1_pd15 | 
|  | &fmc_d2_pd0 &fmc_d3_pd1 &fmc_d4_pe7 &fmc_d5_pe8 &fmc_d6_pe9 | 
|  | &fmc_d7_pe10 &fmc_d8_pe11 &fmc_d9_pe12 &fmc_d10_pe13 | 
|  | &fmc_d11_pe14 &fmc_d12_pe15 &fmc_d13_pd8 &fmc_d14_pd9 | 
|  | &fmc_d15_pd10>; | 
|  | pinctrl-names = "default"; | 
|  | status = "okay"; | 
|  |  | 
|  | sdram { | 
|  | status = "okay"; | 
|  | power-up-delay = <100>; | 
|  | num-auto-refresh = <8>; | 
|  | mode-register = <0x220>; | 
|  | /* | 
|  | * Auto refresh command shall be issued every 15.625 us | 
|  | * and is calculated as ((15.625 * SDRAM_CLK_MHZ) - 20) | 
|  | * Note: SDRAM_CLK_MHZ = HCLK_MHZ / 2 (108 MHz) | 
|  | */ | 
|  | refresh-rate = <1667>; | 
|  |  | 
|  | bank@0 { | 
|  | reg = <0>; | 
|  | st,sdram-control = <STM32_FMC_SDRAM_NC_8 | 
|  | STM32_FMC_SDRAM_NR_12 | 
|  | STM32_FMC_SDRAM_MWID_16 | 
|  | STM32_FMC_SDRAM_NB_4 | 
|  | STM32_FMC_SDRAM_CAS_2 | 
|  | STM32_FMC_SDRAM_SDCLK_PERIOD_2 | 
|  | STM32_FMC_SDRAM_RBURST_ENABLE | 
|  | STM32_FMC_SDRAM_RPIPE_0>; | 
|  | st,sdram-timing = <2 6 4 6 2 2 2>; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | <dc { | 
|  | pinctrl-0 = <<dc_r0_pi15 <dc_r1_pj0 <dc_r2_pj1 <dc_r3_pj2 | 
|  | <dc_r4_pj3 <dc_r5_pj4 <dc_r6_pj5 <dc_r7_pj6 | 
|  | <dc_g0_pj7 <dc_g1_pj8 <dc_g2_pj9 <dc_g3_pj10 | 
|  | <dc_g4_pj11 <dc_g5_pk0 <dc_g6_pk1 <dc_g7_pk2 | 
|  | <dc_b0_pe4 <dc_b1_pj13 <dc_b2_pj14 <dc_b3_pj15 | 
|  | <dc_b4_pg12 <dc_b5_pk4 <dc_b6_pk5 <dc_b7_pk6 | 
|  | <dc_de_pk7 <dc_clk_pi14 <dc_hsync_pi10 <dc_vsync_pi9>; | 
|  | pinctrl-names = "default"; | 
|  | disp-on-gpios = <&gpioi 12 GPIO_ACTIVE_HIGH>; | 
|  | bl-ctrl-gpios = <&gpiok 3 GPIO_ACTIVE_HIGH>; | 
|  | ext-sdram = <&sdram1>; | 
|  | status = "okay"; | 
|  |  | 
|  | width = <480>; | 
|  | height = <272>; | 
|  | pixel-format = <PANEL_PIXEL_FORMAT_RGB_565>; | 
|  |  | 
|  | display-timings { | 
|  | compatible = "zephyr,panel-timing"; | 
|  | de-active = <0>; | 
|  | pixelclk-active = <0>; | 
|  | hsync-active = <0>; | 
|  | vsync-active = <0>; | 
|  | hsync-len = <1>; | 
|  | vsync-len = <10>; | 
|  | hback-porch = <43>; | 
|  | vback-porch = <12>; | 
|  | hfront-porch = <8>; | 
|  | vfront-porch = <4>; | 
|  | }; | 
|  |  | 
|  | def-back-color-red = <0xFF>; | 
|  | def-back-color-green = <0xFF>; | 
|  | def-back-color-blue = <0xFF>; | 
|  | }; |