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3c6abb97f343aec1df1f1cc213886ccfd2f38c6b
android_kernel_xiaomi_sm8450/arch/arm/boot/dts/lpc4357-ea4357-devkit.dts
Joachim Eastwood 3c6abb97f3 ARM: dts: lpc4357-ea4357: add emc pins and static memory devices 
Setup the emc pins used by external memory devices and add
configuration for the devices found on the EA4357 devkit.

The EA4357 devkit has a NOR Flash attached to chip select 0
and a D-type flip-flop used for LEDs on chip select 2.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05 19:30:20 +02:00

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/*
* Embedded Artist LPC4357 Developer's Kit
*
* Copyright 2015 Joachim Eastwood <manabian@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 "lpc4357.dtsi"
#include "dt-bindings/input/input.h"
#include "dt-bindings/gpio/gpio.h"
/ {
model = "Embedded Artists' LPC4357 Developer's Kit";
compatible = "ea,lpc4357-developers-kit", "nxp,lpc4357", "nxp,lpc4350";
aliases {
serial0 = &uart0;
serial1 = &uart1;
serial2 = &uart2;
serial3 = &uart3;
};
chosen {
stdout-path = &uart0;
};
memory {
device_type = "memory";
reg = <0x28000000 0x2000000>; /* 32 MB */
};
/* vmmc is controlled by sdmmc host internally */
vmmc: vmmc_fixed {
compatible = "regulator-fixed";
regulator-name = "vmmc-supply";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
gpio_joystick {
compatible = "gpio-keys-polled";
pinctrl-names = "default";
pinctrl-0 = <&gpio_joystick_pins>;
#address-cells = <1>;
#size-cells = <0>;
poll-interval = <100>;
autorepeat;
button@0 {
label = "joy_enter";
linux,code = <KEY_ENTER>;
gpios = <&gpio LPC_GPIO(4,8) GPIO_ACTIVE_LOW>;
};
button@1 {
label = "joy_left";
linux,code = <KEY_LEFT>;
gpios = <&gpio LPC_GPIO(4,9) GPIO_ACTIVE_LOW>;
};
button@2 {
label = "joy_up";
linux,code = <KEY_UP>;
gpios = <&gpio LPC_GPIO(4,10) GPIO_ACTIVE_LOW>;
};
button@3 {
label = "joy_right";
linux,code = <KEY_RIGHT>;
gpios = <&gpio LPC_GPIO(4,12) GPIO_ACTIVE_LOW>;
};
button@4 {
label = "joy_down";
linux,code = <KEY_DOWN>;
gpios = <&gpio LPC_GPIO(4,13) GPIO_ACTIVE_LOW>;
};
};
};
&pinctrl {
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_31_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",
"pd_2", "pd_3", "pd_4", "pd_5",
"pd_6", "pd_7", "pd_8", "pd_9",
"pe_5", "pe_6", "pe_7", "pe_8",
"pe_9", "pe_10", "pe_11", "pe_12";
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_3_cfg {
pins = "p1_5", "p6_3", "pd_12", "pd_11";
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_rmii_pins: enet-rmii-pins {
enet_rmii_rxd_cfg {
pins = "p1_15", "p0_0";
function = "enet";
slew-rate = <1>;
bias-disable;
input-enable;
input-schmitt-disable;
};
enet_rmii_txd_cfg {
pins = "p1_18", "p1_20";
function = "enet";
slew-rate = <1>;
bias-disable;
input-enable;
input-schmitt-disable;
};
enet_rmii_rx_dv_cfg {
pins = "p1_16";
function = "enet";
bias-disable;
input-enable;
input-schmitt-disable;
};
enet_rmii_tx_en_cfg {
pins = "p0_1";
function = "enet";
bias-disable;
input-enable;
input-schmitt-disable;
};
enet_ref_clk_cfg {
pins = "p1_19";
function = "enet";
slew-rate = <1>;
bias-disable;
input-enable;
input-schmitt-disable;
};
enet_mdio_cfg {
pins = "p1_17";
function = "enet";
bias-disable;
input-enable;
input-schmitt-disable;
};
enet_mdc_cfg {
pins = "pc_1";
function = "enet";
slew-rate = <1>;
bias-disable;
input-enable;
input-schmitt-disable;
};
};
gpio_joystick_pins: gpio-joystick-pins {
gpio_joystick_cfg {
pins = "p9_0", "p9_1", "pa_1", "pa_2", "pa_3";
function = "gpio";
input-enable;
bias-disable;
};
};
sdmmc_pins: sdmmc-pins {
sdmmc_clk_cfg {
pins = "pc_0";
function = "sdmmc";
slew-rate = <1>;
bias-pull-down;
};
sdmmc_cmd_dat0_3_cfg {
pins = "pc_4", "pc_5", "pc_6", "pc_7", "pc_10";
function = "sdmmc";
slew-rate = <1>;
bias-disable;
input-enable;
input-schmitt-disable;
};
sdmmc_cd_cfg {
pins = "pc_8";
function = "sdmmc";
bias-pull-down;
input-enable;
};
sdmmc_pow_cfg {
pins = "pc_9";
function = "sdmmc";
bias-pull-down;
};
};
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;
};
};
uart3_pins: uart3-pins {
uart3_rx_cfg {
pins = "p2_4";
function = "uart3";
input-schmitt-disable;
bias-disable;
input-enable;
};
uart3_tx_cfg {
pins = "p9_3";
function = "uart3";
bias-pull-down;
};
};
usb0_pins: usb0-pins {
usb0_pwr_enable {
pins = "p2_3";
function = "usb0";
};
usb0_pwr_fault {
pins = "p8_0";
function = "usb0";
bias-disable;
input-enable;
};
};
};
&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>;
mmio_leds: gpio@2,0 {
compatible = "ti,7416374";
reg = <2 0 0x2>;
gpio-controller;
#gpio-cells = <2>;
};
};
};
&enet_tx_clk {
clock-frequency = <50000000>;
};
&mac {
status = "okay";
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&enet_rmii_pins>;
};
&mmcsd {
status = "okay";
bus-width = <4>;
vmmc-supply = <&vmmc>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_pins>;
};
&uart0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins>;
};
&uart3 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&uart3_pins>;
};
&usb0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&usb0_pins>;
};
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