ARM: am335x: Add phyBOARD REGOR support
phyBOARD-REGOR is based on phyCORE AM335x R2 SoM (PCL060).
CPU : AM335X-GP rev 2.1
Model: Phytec AM335x phyBOARD-REGOR
DRAM: 512 MiB
NAND: 512 MiB
MMC: OMAP SD/MMC: 0
eth0: ethernet@4a100000
Working:
- Eth0
- i2C
- MMC/SD
- NAND
- UART
- USB (host)
Device trees were taken from Linux mainline:
commit c4d6fe731176 ("Linux 5.9.0")
Signed-off-by: Parthiban Nallathambi <parthiban@linumiz.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 5308713..4319207 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -350,7 +350,8 @@
am335x-sl50.dtb \
am335x-base0033.dtb \
am335x-guardian.dtb \
- am335x-wega-rdk.dtb
+ am335x-wega-rdk.dtb \
+ am335x-regor-rdk.dtb
dtb-$(CONFIG_AM43XX) += am437x-gp-evm.dtb am437x-sk-evm.dtb \
am43x-epos-evm.dtb \
am437x-idk-evm.dtb \
diff --git a/arch/arm/dts/am335x-regor-rdk-u-boot.dtsi b/arch/arm/dts/am335x-regor-rdk-u-boot.dtsi
new file mode 100644
index 0000000..1ddd715
--- /dev/null
+++ b/arch/arm/dts/am335x-regor-rdk-u-boot.dtsi
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 Linumiz
+ */
+
+/ {
+ chosen {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ bootargs = "console=ttyO0,115200 earlyprintk";
+ stdout-path = &uart0;
+ };
+
+ ocp {
+ u-boot,dm-pre-reloc;
+ };
+};
+
+&i2c0 {
+ u-boot,dm-pre-reloc;
+};
+
+&uart0 {
+ u-boot,dm-pre-reloc;
+};
+
+&mmc1 {
+ u-boot,dm-pre-reloc;
+ cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+};
diff --git a/arch/arm/dts/am335x-regor-rdk.dts b/arch/arm/dts/am335x-regor-rdk.dts
new file mode 100644
index 0000000..66a1360
--- /dev/null
+++ b/arch/arm/dts/am335x-regor-rdk.dts
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Phytec Messtechnik GmbH
+ * Author: Teresa Remmet <t.remmet@phytec.de>
+ *
+ */
+
+/dts-v1/;
+
+#include "am335x-phycore-som.dtsi"
+#include "am335x-regor.dtsi"
+
+/* SoM */
+&gpmc {
+ status = "okay";
+};
+
+&i2c_eeprom {
+ status = "okay";
+};
+
+&serial_flash {
+ status = "okay";
+};
diff --git a/arch/arm/dts/am335x-regor.dtsi b/arch/arm/dts/am335x-regor.dtsi
new file mode 100644
index 0000000..86b3f07
--- /dev/null
+++ b/arch/arm/dts/am335x-regor.dtsi
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Phytec Messtechnik GmbH
+ * Author: Teresa Remmet <t.remmet@phytec.de>
+ *
+ */
+
+/ {
+ model = "Phytec AM335x phyBOARD-REGOR";
+ compatible = "phytec,am335x-regor", "phytec,am335x-phycore-som", "ti,am33xx";
+
+ vcc3v3: fixedregulator@1 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ };
+
+ /* User IO */
+ user_leds: user_leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&user_leds_pins>;
+
+ run_stop-led {
+ gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "gpio";
+ default-state = "off";
+ };
+
+ error-led {
+ gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "gpio";
+ default-state = "off";
+ };
+ };
+};
+
+/* User Leds */
+&am33xx_pinmux {
+ user_leds_pins: pinmux_user_leds {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x8E0, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* lcd_hsync.gpio2_22 */
+ AM33XX_IOPAD(0x994, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* mcasp0_fsx.gpio3_15 */
+ >;
+ };
+};
+
+/* CAN Busses */
+&am33xx_pinmux {
+ dcan1_pins: pinmux_dcan1 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x968, PIN_OUTPUT_PULLUP | MUX_MODE2) /* uart0_ctsn.d_can1_tx */
+ AM33XX_IOPAD(0x96C, PIN_INPUT_PULLUP | MUX_MODE2) /* uart0_rtsn.d_can1_rx */
+ >;
+ };
+};
+
+&dcan1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&dcan1_pins>;
+ status = "okay";
+};
+
+/* Ethernet */
+&am33xx_pinmux {
+ ethernet1_pins: pinmux_ethernet1 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x840, PIN_OUTPUT | MUX_MODE1) /* gpmc_a0.mii2_txen */
+ AM33XX_IOPAD(0x844, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a1.mii2_rxdv */
+ AM33XX_IOPAD(0x848, PIN_OUTPUT | MUX_MODE1) /* gpmc_a2.mii2_txd3 */
+ AM33XX_IOPAD(0x84C, PIN_OUTPUT | MUX_MODE1) /* gpmc_a3.mii2_txd2 */
+ AM33XX_IOPAD(0x850, PIN_OUTPUT | MUX_MODE1) /* gpmc_a4.mii2_txd1 */
+ AM33XX_IOPAD(0x854, PIN_OUTPUT | MUX_MODE1) /* gpmc_a5.mii2_txd0 */
+ AM33XX_IOPAD(0x858, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a6.mii2_txclk */
+ AM33XX_IOPAD(0x85C, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a7.mii2_rxclk */
+ AM33XX_IOPAD(0x860, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a8.mii2_rxd3 */
+ AM33XX_IOPAD(0x864, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a9.mii2_rxd2 */
+ AM33XX_IOPAD(0x868, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a10.mii2_rxd1 */
+ AM33XX_IOPAD(0x86C, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_a11.mii2_rxd0 */
+ AM33XX_IOPAD(0x874, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_wpn.mii2_rxerr */
+ AM33XX_IOPAD(0x878, PIN_INPUT_PULLDOWN | MUX_MODE1) /* gpmc_ben1.mii2_col */
+ >;
+ };
+};
+
+&cpsw_emac1 {
+ phy-handle = <&phy1>;
+ phy-mode = "mii";
+ dual_emac_res_vlan = <2>;
+};
+
+&davinci_mdio {
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+};
+
+&mac {
+ slaves = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <ðernet0_pins ðernet1_pins>;
+ dual_emac = <1>;
+};
+
+/* GPIOs */
+&am33xx_pinmux {
+ pinctrl-names = "default";
+ pinctrl-0 = <&user_gpios_pins>;
+
+ user_gpios_pins: pinmux_user_gpios {
+ pinctrl-single,pins = <
+ /* DIGIN 1-4 */
+ AM33XX_IOPAD(0x82C, PIN_INPUT | MUX_MODE7) /* gpmc_ad11.gpio0_27 */
+ AM33XX_IOPAD(0x828, PIN_INPUT | MUX_MODE7) /* gpmc_ad10.gpio0_26 */
+ AM33XX_IOPAD(0x824, PIN_INPUT | MUX_MODE7) /* gpmc_ad9.gpio0_23 */
+ AM33XX_IOPAD(0x820, PIN_INPUT | MUX_MODE7) /* gpmc_ad8.gpio0_22 */
+ /* DIGOUT 1-4 */
+ AM33XX_IOPAD(0x83C, PIN_OUTPUT | MUX_MODE7) /* gpmc_ad15.gpio1_15 */
+ AM33XX_IOPAD(0x838, PIN_OUTPUT | MUX_MODE7) /* gpmc_ad14.gpio1_14 */
+ AM33XX_IOPAD(0x834, PIN_OUTPUT | MUX_MODE7) /* gpmc_ad13.gpio1_13 */
+ AM33XX_IOPAD(0x830, PIN_OUTPUT | MUX_MODE7) /* gpmc_ad12.gpio1_12 */
+ >;
+ };
+};
+
+/* MMC */
+&am33xx_pinmux {
+ mmc1_pins: pinmux_mmc1 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x8F0, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x8F4, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x8F8, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x8FC, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x900, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x960, PIN_INPUT_PULLUP | MUX_MODE7) /* spi0_cs1.mmc0_sdcd */
+ >;
+ };
+};
+
+&mmc1 {
+ vmmc-supply = <&vcc3v3>;
+ bus-width = <4>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins>;
+ cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+/* RTC */
+&i2c_rtc {
+ status = "okay";
+};
+
+/* UARTs */
+&am33xx_pinmux {
+ uart0_pins: pinmux_uart0 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+ >;
+ };
+
+ uart2_pins: pinmux_uart2 {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x92C, PIN_INPUT_PULLUP | MUX_MODE1) /* mii1_tx_clk.uart2_rxd */
+ AM33XX_IOPAD(0x930, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mii1_rx_clk.uart2_txd */
+ >;
+ };
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pins>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+ status = "okay";
+};
+
+/* RS485 - UART1 */
+&am33xx_pinmux {
+ uart1_rs485_pins: pinmux_uart1_rs485_pins {
+ pinctrl-single,pins = <
+ AM33XX_IOPAD(0x980, PIN_INPUT_PULLUP | MUX_MODE0)
+ AM33XX_IOPAD(0x984, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+ AM33XX_IOPAD(0x97C, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ >;
+ };
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_rs485_pins>;
+ status = "okay";
+ linux,rs485-enabled-at-boot-time;
+};