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Subject[PATCH 2/3] ARM: dts: am335x: Add DTS for ChiliSOM module
Date
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>
---
arch/arm/boot/dts/am335x-chilisom.dtsi | 239 +++++++++++++++++++++++++++++++++
1 file changed, 239 insertions(+)
create mode 100644 arch/arm/boot/dts/am335x-chilisom.dtsi

diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi
new file mode 100644
index 0000000..54c0c10
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-chilisom.dtsi
@@ -0,0 +1,239 @@
+/*
+ * 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 0x01000000>; /* CS0 */
+ 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>;
+ };
+};
--
2.1.0


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