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linux/arch/arm/boot/dts/am335x-chilisom.dtsi

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ARM: dts: am335x: Add DTS for ChiliSOM module Since this is a SOM (System on Module) that will be part of another embedded board (and can't really exist on its own) define it as a "dtsi" that will be included in the Device tree describing the whole system later on. Hardware specification: * AM335x SoC * up to 512 MB RAM * NAND Flash (8x interface, cs0) * UART0 * PMIC * I2C0 (for PMIC) * 1x Ethernet MAC Signed-off-by: Rostislav Lisovy <lisovy@jablotron.cz> [tony@atomide.com: updated nand io size to be just 4] Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-02-09 22:48:04 +08:00
/*
* Copyright (C) 2015 Jablotron s.r.o. -- http://www.jablotron.com/
* Author: Rostislav Lisovy <lisovy@jablotron.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "am33xx.dtsi"
/ {
model = "Grinn AM335x ChiliSOM";
compatible = "grinn,am335x-chilisom", "ti,am33xx";
cpus {
cpu@0 {
cpu0-supply = <&dcdc2_reg>;
};
};
memory {
device_type = "memory";
reg = <0x80000000 0x20000000>; /* 512 MB */
};
};
&am33xx_pinmux {
pinctrl-names = "default";
i2c0_pins: pinmux_i2c0_pins {
pinctrl-single,pins = <
0x188 (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */
0x18c (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */
>;
};
uart0_pins: pinmux_uart0_pins {
pinctrl-single,pins = <
0x170 (PIN_INPUT_PULLUP | MUX_MODE0) /* uart0_rxd.uart0_rxd */
0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
>;
};
cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 1 */
0x10c (PIN_INPUT_PULLDOWN | MUX_MODE1) /* mii1_crs.rmii1_crs */
0x110 (PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_rxerr.rmii1_rxerr */
0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_txen.rmii1_txen */
0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_txd1.rmii1_txd1 */
0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_txd0.rmii1_txd0 */
0x13c (PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_rxd1.rmii1_rxd1 */
0x140 (PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_rxd0.rmii1_rxd0 */
0x144 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* rmii1_ref_clk.rmii_ref_clk */
>;
};
cpsw_sleep: cpsw_sleep {
pinctrl-single,pins = <
/* Slave 1 reset value */
0x10c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x144 (PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
davinci_mdio_default: davinci_mdio_default {
pinctrl-single,pins = <
/* mdio_data.mdio_data */
0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)
/* mdio_clk.mdio_clk */
0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)
>;
};
davinci_mdio_sleep: davinci_mdio_sleep {
pinctrl-single,pins = <
/* MDIO reset value */
0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
nandflash_pins: nandflash_pins {
pinctrl-single,pins = <
0x00 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad0.gpmc_ad0 */
0x04 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad1.gpmc_ad1 */
0x08 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad2.gpmc_ad2 */
0x0c (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad3.gpmc_ad3 */
0x10 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad4.gpmc_ad4 */
0x14 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad5.gpmc_ad5 */
0x18 (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad6.gpmc_ad6 */
0x1c (PIN_INPUT_PULLDOWN | MUX_MODE0) /* gpmc_ad7.gpmc_ad7 */
0x70 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_wait0.gpmc_wait0 */
0x7c (PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_csn0.gpmc_csn0 */
0x90 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_advn_ale.gpmc_advn_ale */
0x94 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_oen_ren.gpmc_oen_ren */
0x98 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_wen.gpmc_wen */
0x9c (PIN_OUTPUT_PULLUP | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
>;
};
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins>;
status = "okay";
};
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "okay";
clock-frequency = <400000>;
tps: tps@24 {
reg = <0x24>;
};
};
/include/ "tps65217.dtsi"
&tps {
regulators {
dcdc1_reg: regulator@0 {
regulator-name = "vdds_dpr";
regulator-always-on;
};
dcdc2_reg: regulator@1 {
/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
regulator-name = "vdd_mpu";
regulator-min-microvolt = <925000>;
regulator-max-microvolt = <1325000>;
regulator-boot-on;
regulator-always-on;
};
dcdc3_reg: regulator@2 {
/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
regulator-name = "vdd_core";
regulator-min-microvolt = <925000>;
regulator-max-microvolt = <1150000>;
regulator-boot-on;
regulator-always-on;
};
ldo1_reg: regulator@3 {
regulator-name = "vio,vrtc,vdds";
regulator-boot-on;
regulator-always-on;
};
ldo2_reg: regulator@4 {
regulator-name = "vdd_3v3aux";
regulator-boot-on;
regulator-always-on;
};
ldo3_reg: regulator@5 {
regulator-name = "vdd_1v8";
regulator-boot-on;
regulator-always-on;
};
ldo4_reg: regulator@6 {
regulator-name = "vdd_3v3d";
regulator-boot-on;
regulator-always-on;
};
};
};
/* Ethernet MAC */
&mac {
slaves = <1>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
status = "okay";
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
status = "okay";
};
/* NAND Flash */
&elm {
status = "okay";
};
&gpmc {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&nandflash_pins>;
ranges = <0 0 0x08000000 0x01000000>; /* CS0 0 @addr 0x08000000, size 0x01000000 */
nand@0,0 {
reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
ti,nand-ecc-opt = "bch8";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
gpmc,device-width = <1>;
gpmc,sync-clk-ps = <0>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <44>;
gpmc,cs-wr-off-ns = <44>;
gpmc,adv-on-ns = <6>;
gpmc,adv-rd-off-ns = <34>;
gpmc,adv-wr-off-ns = <44>;
gpmc,we-on-ns = <0>;
gpmc,we-off-ns = <40>;
gpmc,oe-on-ns = <0>;
gpmc,oe-off-ns = <54>;
gpmc,access-ns = <64>;
gpmc,rd-cycle-ns = <82>;
gpmc,wr-cycle-ns = <82>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
};
};