|  | /* | 
|  | * Hitex LPC4350 Evaluation Board | 
|  | * | 
|  | * Copyright 2015 Ariel D'Alessandro <ariel.dalessandro@gmail.com> | 
|  | * | 
|  | * This code is released using a dual license strategy: BSD/GPL | 
|  | * You can choose the licence that better fits your requirements. | 
|  | * | 
|  | * Released under the terms of 3-clause BSD License | 
|  | * Released under the terms of GNU General Public License Version 2.0 | 
|  | * | 
|  | */ | 
|  | /dts-v1/; | 
|  |  | 
|  | #include "lpc18xx.dtsi" | 
|  | #include "lpc4350.dtsi" | 
|  |  | 
|  | #include "dt-bindings/input/input.h" | 
|  | #include "dt-bindings/gpio/gpio.h" | 
|  |  | 
|  | / { | 
|  | model = "Hitex LPC4350 Evaluation Board"; | 
|  | compatible = "hitex,lpc4350-eval-board", "nxp,lpc4350"; | 
|  |  | 
|  | aliases { | 
|  | serial0 = &uart0; | 
|  | serial1 = &uart1; | 
|  | serial2 = &uart2; | 
|  | serial3 = &uart3; | 
|  | }; | 
|  |  | 
|  | chosen { | 
|  | stdout-path = &uart0; | 
|  | }; | 
|  |  | 
|  | memory@28000000 { | 
|  | device_type = "memory"; | 
|  | reg = <0x28000000 0x800000>; /* 8 MB */ | 
|  | }; | 
|  |  | 
|  | pca_buttons { | 
|  | compatible = "gpio-keys-polled"; | 
|  | poll-interval = <100>; | 
|  | autorepeat; | 
|  |  | 
|  | button0 { | 
|  | label = "joy:right"; | 
|  | linux,code = <KEY_RIGHT>; | 
|  | gpios = <&pca_gpio 8 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | button1 { | 
|  | label = "joy:up"; | 
|  | linux,code = <KEY_UP>; | 
|  | gpios = <&pca_gpio 9 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  |  | 
|  | button2 { | 
|  | label = "joy:enter"; | 
|  | linux,code = <KEY_ENTER>; | 
|  | gpios = <&pca_gpio 10 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | button3 { | 
|  | label = "joy:left"; | 
|  | linux,code = <KEY_LEFT>; | 
|  | gpios = <&pca_gpio 11 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | button4 { | 
|  | label = "joy:down"; | 
|  | linux,code = <KEY_DOWN>; | 
|  | gpios = <&pca_gpio 12 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | button5 { | 
|  | label = "user:sw3"; | 
|  | linux,code = <KEY_F1>; | 
|  | gpios = <&pca_gpio 13 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | button6 { | 
|  | label = "user:sw4"; | 
|  | linux,code = <KEY_F2>; | 
|  | gpios = <&pca_gpio 14 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | button7 { | 
|  | label = "user:sw5"; | 
|  | linux,code = <KEY_F3>; | 
|  | gpios = <&pca_gpio 15 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | pca_leds { | 
|  | compatible = "gpio-leds"; | 
|  |  | 
|  | led0 { | 
|  | label = "ext:led0"; | 
|  | gpios = <&pca_gpio 0 GPIO_ACTIVE_LOW>; | 
|  | linux,default-trigger = "heartbeat"; | 
|  | }; | 
|  |  | 
|  | led1 { | 
|  | label = "ext:led1"; | 
|  | gpios = <&pca_gpio 1 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | led2 { | 
|  | label = "ext:led2"; | 
|  | gpios = <&pca_gpio 2 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  |  | 
|  | led3 { | 
|  | label = "ext:led3"; | 
|  | gpios = <&pca_gpio 3 GPIO_ACTIVE_LOW>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | vcc: vcc_fixed { | 
|  | compatible = "regulator-fixed"; | 
|  | regulator-name = "3v3io"; | 
|  | regulator-min-microvolt = <3300000>; | 
|  | regulator-max-microvolt = <3300000>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &pinctrl { | 
|  | adc1_pins: adc1-pins { | 
|  | adc1_pins_cfg { | 
|  | pins = "pf_9"; | 
|  | function = "adc"; | 
|  | input-disable; | 
|  | bias-disable; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | emc_pins: emc-pins { | 
|  | emc_addr0_23_cfg { | 
|  | pins =	"p2_9",  "p2_10", "p2_11", "p2_12", | 
|  | "p2_13", "p1_0",  "p1_1",  "p1_2", | 
|  | "p2_8",  "p2_7",  "p2_6",  "p2_2", | 
|  | "p2_1",  "p2_0",  "p6_8",  "p6_7", | 
|  | "pd_16", "pd_15", "pe_0",  "pe_1", | 
|  | "pe_2",  "pe_3",  "pe_4",  "pa_4"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_data0_15_cfg { | 
|  | pins =	"p1_7",  "p1_8",  "p1_9",  "p1_10", | 
|  | "p1_11", "p1_12", "p1_13", "p1_14", | 
|  | "p5_4",  "p5_5",  "p5_6",  "p5_7", | 
|  | "p5_0",  "p5_1",  "p5_2",  "p5_3"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_we_oe_cfg { | 
|  | pins = "p1_6", "p1_3"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_bls0_3_cfg { | 
|  | pins = "p1_4", "p6_6", "pd_13", "pd_10"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_cs0_cs2_cfg { | 
|  | pins = "p1_5", "pd_12"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_sdram_dqm0_3_cfg { | 
|  | pins = "p6_12", "p6_10", "pd_0", "pe_13"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_sdram_ras_cas_cfg { | 
|  | pins = "p6_5", "p6_4"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_sdram_dycs0_cfg { | 
|  | pins = "p6_9"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_sdram_cke_cfg { | 
|  | pins = "p6_11"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | emc_sdram_clock_cfg { | 
|  | pins = "clk0", "clk1", "clk2", "clk3"; | 
|  | function = "emc"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | enet_mii_pins: enet-mii-pins { | 
|  | enet_mii_rxd0_3_cfg { | 
|  | pins = "p1_15", "p0_0", "p9_3", "p9_2"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | }; | 
|  |  | 
|  | enet_mii_txd0_3_cfg { | 
|  | pins = "p1_18", "p1_20", "p9_4", "p9_5"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | }; | 
|  |  | 
|  | enet_mii_crs_col_cfg { | 
|  | pins = "p9_0", "p9_6"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | }; | 
|  |  | 
|  | enet_mii_rx_clk_dv_er_cfg { | 
|  | pins = "pc_0", "p1_16", "p9_1"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | }; | 
|  |  | 
|  | enet_mii_tx_clk_en_cfg { | 
|  | pins = "p1_19", "p0_1"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | }; | 
|  |  | 
|  | enet_mdio_cfg { | 
|  | pins = "p1_17"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | }; | 
|  |  | 
|  | enet_mdc_cfg { | 
|  | pins = "pc_1"; | 
|  | function = "enet"; | 
|  | bias-disable; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | i2c0_pins: i2c0-pins { | 
|  | i2c0_pins_cfg { | 
|  | pins = "i2c0_scl", "i2c0_sda"; | 
|  | function = "i2c0"; | 
|  | input-enable; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | spifi_pins: spifi-pins { | 
|  | spifi_clk_cfg { | 
|  | pins = "p3_3"; | 
|  | function = "spifi"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | spifi_mosi_miso_sio2_3_cfg { | 
|  | pins = "p3_7", "p3_6", "p3_5", "p3_4"; | 
|  | function = "spifi"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  |  | 
|  | spifi_cs_cfg { | 
|  | pins = "p3_8"; | 
|  | function = "spifi"; | 
|  | slew-rate = <1>; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | input-schmitt-disable; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | uart0_pins: uart0-pins { | 
|  | uart0_rx_cfg { | 
|  | pins = "pf_11"; | 
|  | function = "uart0"; | 
|  | input-schmitt-disable; | 
|  | bias-disable; | 
|  | input-enable; | 
|  | }; | 
|  |  | 
|  | uart0_tx_cfg { | 
|  | pins = "pf_10"; | 
|  | function = "uart0"; | 
|  | bias-pull-down; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &adc1 { | 
|  | status = "okay"; | 
|  | vref-supply = <&vcc>; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&adc1_pins>; | 
|  | }; | 
|  |  | 
|  | &emc { | 
|  | status = "okay"; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&emc_pins>; | 
|  |  | 
|  | cs0 { | 
|  | #address-cells = <2>; | 
|  | #size-cells = <1>; | 
|  | ranges; | 
|  |  | 
|  | mpmc,cs = <0>; | 
|  | mpmc,memory-width = <16>; | 
|  | mpmc,byte-lane-low; | 
|  | mpmc,write-enable-delay = <0>; | 
|  | mpmc,output-enable-delay = <0>; | 
|  | mpmc,read-access-delay = <70>; | 
|  | mpmc,page-mode-read-delay = <70>; | 
|  |  | 
|  | flash@0,0 { | 
|  | compatible = "sst,sst39vf320", "cfi-flash"; | 
|  | reg = <0 0 0x400000>; | 
|  | bank-width = <2>; | 
|  | #address-cells = <1>; | 
|  | #size-cells = <1>; | 
|  |  | 
|  | partition@0 { | 
|  | label = "bootloader"; | 
|  | reg = <0x000000 0x040000>; /* 256 KiB */ | 
|  | }; | 
|  |  | 
|  | partition@1 { | 
|  | label = "kernel"; | 
|  | reg = <0x040000 0x2C0000>; /* 2.75 MiB */ | 
|  | }; | 
|  |  | 
|  | partition@2 { | 
|  | label = "rootfs"; | 
|  | reg = <0x300000 0x100000>; /* 1 MiB */ | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | cs2 { | 
|  | #address-cells = <2>; | 
|  | #size-cells = <1>; | 
|  | ranges; | 
|  |  | 
|  | mpmc,cs = <2>; | 
|  | mpmc,memory-width = <16>; | 
|  | mpmc,byte-lane-low; | 
|  | mpmc,write-enable-delay = <0>; | 
|  | mpmc,output-enable-delay = <30>; | 
|  | mpmc,read-access-delay = <90>; | 
|  | mpmc,page-mode-read-delay = <55>; | 
|  | mpmc,write-access-delay = <55>; | 
|  | mpmc,turn-round-delay = <55>; | 
|  |  | 
|  | ext_sram: sram@2,0 { | 
|  | compatible = "mmio-sram"; | 
|  | reg = <2 0 0x80000>; /* 512 KiB SRAM on IS62WV25616 */ | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &enet_tx_clk { | 
|  | clock-frequency = <25000000>; | 
|  | }; | 
|  |  | 
|  | &i2c0 { | 
|  | status = "okay"; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&i2c0_pins>; | 
|  | clock-frequency = <400000>; | 
|  |  | 
|  | /* NXP SE97BTP with temperature sensor + eeprom */ | 
|  | sensor@18 { | 
|  | compatible = "nxp,se97", "jedec,jc-42.4-temp"; | 
|  | reg = <0x18>; | 
|  | }; | 
|  |  | 
|  | eeprom@50 { | 
|  | compatible = "nxp,24c02", "atmel,24c02"; | 
|  | reg = <0x50>; | 
|  | }; | 
|  |  | 
|  | pca_gpio: gpio@24 { | 
|  | compatible = "nxp,pca9673"; | 
|  | reg = <0x24>; | 
|  | gpio-controller; | 
|  | #gpio-cells = <2>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &mac { | 
|  | status = "okay"; | 
|  | phy-mode = "mii"; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&enet_mii_pins>; | 
|  | }; | 
|  |  | 
|  | &spifi { | 
|  | status = "okay"; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&spifi_pins>; | 
|  |  | 
|  | flash { | 
|  | compatible = "jedec,spi-nor"; | 
|  | spi-rx-bus-width = <4>; | 
|  | #address-cells = <1>; | 
|  | #size-cells = <1>; | 
|  |  | 
|  | partition@0 { | 
|  | label = "bootloader"; | 
|  | reg = <0x000000 0x040000>; /* 256 KiB */ | 
|  | }; | 
|  |  | 
|  | partition@1 { | 
|  | label = "kernel"; | 
|  | reg = <0x040000 0x2c0000>; /* 2.75 MiB */ | 
|  | }; | 
|  |  | 
|  | partition@2 { | 
|  | label = "rootfs"; | 
|  | reg = <0x300000 0x500000>; /* 5 MiB */ | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &uart0 { | 
|  | status = "okay"; | 
|  | pinctrl-names = "default"; | 
|  | pinctrl-0 = <&uart0_pins>; | 
|  | }; |