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authorSungbo Eo <mans0n@gorani.run>2020-01-12 21:36:23 +0900
committerPetr Štetiar <ynezz@true.cz>2020-07-08 23:22:30 +0200
commit358aec77756d6bf850a533272f2685a45220dc0c (patch)
tree6d28b534f25267ab28af866abb92ec92b057f3a9 /target
parentdc61e3b7ffdc2e3873af238a9100d44ee685578c (diff)
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ath79: add support for Arduino Yun
Arduino Yun is a microcontroller development board, based on Atmel ATmega32u4 and Atheros AR9331. Specifications: - MCU: ATmega32U4 - SoC: AR9331 - RAM: DDR2 64MB - Flash: SPI NOR 16MB - WiFi: - 2.4GHz: SoC internal - Ethernet: 1x 10/100Mbps - USB: 1x 2.0 - MicroSD: 1x SDHC Notes: - Stock firmware is based on OpenWrt AA. - The SoC UART can be accessed only through the MCU. YunSerialTerminal is recommended for access to serial console. - Stock firmware uses non-standard 250000 baudrate by default. - The MCU can be reprogrammed from the SoC with avrdude linuxgpio. Installation: 1. Update U-Boot environment variables to adapt to new partition scheme. > setenv bootcmd "run addboard; run addtty; run addparts; run addrootfs; bootm 0x9f050000 || bootm 0x9fea0000" > setenv mtdparts "spi0.0:256k(u-boot)ro,64k(u-boot-env),15936k(firmware),64k(nvram),64k(art)ro" > saveenv 2. Boot into stock firmware normally and perform sysupgrade with sysupgrade image. # sysupgrade -n -F /tmp/sysupgrade.bin Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Diffstat (limited to 'target')
-rw-r--r--target/linux/ath79/dts/ar9331_arduino_yun.dts223
-rwxr-xr-xtarget/linux/ath79/generic/base-files/etc/board.d/02_network6
-rw-r--r--target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration3
-rw-r--r--target/linux/ath79/image/generic.mk11
-rw-r--r--target/linux/ath79/patches-4.19/921-serial-core-add-support-for-boot-console-with-arbitr.patch54
-rw-r--r--target/linux/ath79/patches-5.4/921-serial-core-add-support-for-boot-console-with-arbitr.patch54
6 files changed, 351 insertions, 0 deletions
diff --git a/target/linux/ath79/dts/ar9331_arduino_yun.dts b/target/linux/ath79/dts/ar9331_arduino_yun.dts
new file mode 100644
index 0000000000..0237fe58bf
--- /dev/null
+++ b/target/linux/ath79/dts/ar9331_arduino_yun.dts
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar9331.dtsi"
+
+/ {
+ model = "Arduino Yun";
+ compatible = "arduino,yun", "qca,ar9331";
+
+ aliases {
+ serial0 = &uart;
+ };
+
+ chosen {
+ bootargs = "console=ttyATH0,250000";
+ };
+
+ ahb {
+ apb {
+ pinmux_extended: pinmux@18040030 {
+ compatible = "pinctrl-single";
+ reg = <0x18040030 0x4>;
+
+ pinctrl-single,bit-per-mux;
+ pinctrl-single,register-width = <32>;
+ pinctrl-single,function-mask = <0x1>;
+ #pinctrl-cells = <2>;
+
+ enable_gpio11: pinmux_enable_gpio11 {
+ pinctrl-single,bits = <0x0 0x200 0x200>;
+ };
+ };
+
+ pinmux_bootstrap: pinmux@180600ac {
+ compatible = "pinctrl-single";
+ reg = <0x180600ac 0x4>;
+
+ pinctrl-single,bit-per-mux;
+ pinctrl-single,register-width = <32>;
+ pinctrl-single,function-mask = <0x1>;
+ #pinctrl-cells = <2>;
+
+ enable_gpio26_gpio27: pinmux_enable_gpio26_gpio27 {
+ pinctrl-single,bits = <0x0 0x40000 0x40000>;
+ };
+ };
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ wlan {
+ label = "yun:blue:wlan";
+ gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "phy0tpt";
+ };
+
+ usb {
+ label = "yun:white:usb";
+ gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&hub_port1>;
+ linux,default-trigger = "usbport";
+ };
+ };
+
+ keys {
+ compatible = "gpio-keys";
+
+ config {
+ label = "config";
+ linux,code = <BTN_0>;
+ gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-export {
+ compatible = "gpio-export";
+
+ gpio_spi_enable {
+ gpio-export,name = "yun:oe:spi";
+ gpio-export,output = <0>;
+ gpios = <&gpio 21 GPIO_ACTIVE_HIGH>;
+ };
+
+ gpio_handshake_enable {
+ gpio-export,name = "yun:oe:hs";
+ gpio-export,output = <0>;
+ gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
+ };
+
+ gpio_uart_enable {
+ gpio-export,name = "yun:oe:uart";
+ gpio-export,output = <0>;
+ gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ reg_usb_vbus: reg_usb_vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ enable-active-high;
+ };
+};
+
+&uart {
+ status = "okay";
+};
+
+&gpio {
+ status = "okay";
+};
+
+&pinmux {
+ pinctrl-names = "default";
+ pinctrl-0 = <&jtag_disable_pins &switch_led_disable_pins>;
+};
+
+&switch_led_disable_pins {
+ pinctrl-single,bits = <0x0 0x80 0xf8>;
+};
+
+&pinmux_extended {
+ pinctrl-names = "default";
+ pinctrl-0 = <&enable_gpio11>;
+};
+
+&pinmux_bootstrap {
+ pinctrl-names = "default";
+ pinctrl-0 = <&enable_gpio26_gpio27>;
+};
+
+&usb {
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ dr_mode = "host";
+ vbus-supply = <&reg_usb_vbus>;
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ #trigger-source-cells = <0>;
+
+ hub_port1: port@1 {
+ reg = <1>;
+ #trigger-source-cells = <0>;
+ };
+ };
+};
+
+&usb_phy {
+ status = "okay";
+};
+
+&spi {
+ status = "okay";
+
+ num-cs = <1>;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0x0 0x40000>;
+ read-only;
+ };
+
+ partition@40000 {
+ label = "u-boot-env";
+ reg = <0x40000 0x10000>;
+ };
+
+ partition@50000 {
+ compatible = "denx,uimage";
+ label = "firmware";
+ reg = <0x50000 0xf90000>;
+ };
+
+ partition@fe0000 {
+ label = "nvram";
+ reg = <0xfe0000 0x10000>;
+ };
+
+ art: partition@ff0000 {
+ label = "art";
+ reg = <0xff0000 0x10000>;
+ read-only;
+ };
+ };
+ };
+};
+
+&eth0 {
+ status = "okay";
+};
+
+&eth1 {
+ status = "okay";
+
+ compatible = "syscon", "simple-mfd";
+};
+
+&wmac {
+ status = "okay";
+
+ mtd-cal-data = <&art 0x1000>;
+};
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 4580f3ab4e..eb43788fce 100755
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -12,6 +12,7 @@ ath79_setup_interfaces()
adtran,bsap1800-v2|\
adtran,bsap1840|\
alfa-network,ap121f|\
+ arduino,yun|\
aruba,ap-105|\
avm,fritz1750e|\
avm,fritz300e|\
@@ -361,6 +362,11 @@ ath79_setup_macs()
alfa-network,ap121f)
label_mac=$(mtd_get_mac_binary art 0x1002)
;;
+ arduino,yun)
+ base_mac=$(mtd_get_mac_binary art 0x1002)
+ lan_mac=$(macaddr_setbit $base_mac 29)
+ [ $lan_mac = $base_mac ] && lan_mac=$(macaddr_unsetbit $base_mac 29)
+ ;;
avm,fritz1750e|\
avm,fritz450e|\
avm,fritzdvbc)
diff --git a/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration b/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
index 757b0c9974..23a9c8282f 100644
--- a/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
+++ b/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
@@ -5,6 +5,9 @@ board=$(board_name)
boardonly="${board##*,}"
case "$board" in
+arduino,yun)
+ migrate_leds "arduino:=yun:"
+ ;;
engenius,epg5000)
migrate_leds ":wlan-2g=:wlan2g" ":wlan-5g=:wlan5g"
;;
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 14e72140dc..46a8705b85 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -210,6 +210,17 @@ define Device/alfa-network_ap121f
endef
TARGET_DEVICES += alfa-network_ap121f
+define Device/arduino_yun
+ SOC := ar9331
+ DEVICE_VENDOR := Arduino
+ DEVICE_MODEL := Yun
+ DEVICE_PACKAGES := kmod-usb2 kmod-usb-chipidea2 kmod-usb-ledtrig-usbport \
+ kmod-usb-storage block-mount -swconfig
+ IMAGE_SIZE := 15936k
+ SUPPORTED_DEVICES += arduino-yun
+endef
+TARGET_DEVICES += arduino_yun
+
define Device/aruba_ap-105
SOC := ar7161
DEVICE_VENDOR := Aruba
diff --git a/target/linux/ath79/patches-4.19/921-serial-core-add-support-for-boot-console-with-arbitr.patch b/target/linux/ath79/patches-4.19/921-serial-core-add-support-for-boot-console-with-arbitr.patch
new file mode 100644
index 0000000000..f726b05200
--- /dev/null
+++ b/target/linux/ath79/patches-4.19/921-serial-core-add-support-for-boot-console-with-arbitr.patch
@@ -0,0 +1,54 @@
+From 4d3c17975c7814884a721fe693b3adf5c426d759 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Tue, 10 Nov 2015 22:18:39 +0100
+Subject: [RFC] serial: core: add support for boot console with arbitrary
+ baud rates
+
+The Arduino Yun uses a baud rate of 250000 by default. The serial is
+going over the Atmel ATmega and is used to connect to this chip.
+Without this patch Linux wants to switch the console to 9600 Baud.
+
+With this patch Linux will use the configured baud rate and not a
+default one specified in uart_register_driver().
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+[rebased to 4.14, slightly reworded commit message]
+Signed-off-by: Sungbo Eo <mans0n@gorani.run>
+---
+ drivers/tty/serial/serial_core.c | 6 +++++-
+ include/linux/console.h | 1 +
+ 2 files changed, 6 insertions(+), 1 deletions(-)
+
+--- a/drivers/tty/serial/serial_core.c
++++ b/drivers/tty/serial/serial_core.c
+@@ -219,6 +219,8 @@ static int uart_port_startup(struct tty_
+ if (retval == 0) {
+ if (uart_console(uport) && uport->cons->cflag) {
+ tty->termios.c_cflag = uport->cons->cflag;
++ tty->termios.c_ospeed = uport->cons->baud;
++ tty->termios.c_ispeed = uport->cons->baud;
+ uport->cons->cflag = 0;
+ }
+ /*
+@@ -2058,8 +2060,10 @@ uart_set_options(struct uart_port *port,
+ * Allow the setting of the UART parameters with a NULL console
+ * too:
+ */
+- if (co)
++ if (co) {
+ co->cflag = termios.c_cflag;
++ co->baud = baud;
++ }
+
+ return 0;
+ }
+--- a/include/linux/console.h
++++ b/include/linux/console.h
+@@ -153,6 +153,7 @@ struct console {
+ short flags;
+ short index;
+ int cflag;
++ int baud;
+ void *data;
+ struct console *next;
+ };
diff --git a/target/linux/ath79/patches-5.4/921-serial-core-add-support-for-boot-console-with-arbitr.patch b/target/linux/ath79/patches-5.4/921-serial-core-add-support-for-boot-console-with-arbitr.patch
new file mode 100644
index 0000000000..dc863a511b
--- /dev/null
+++ b/target/linux/ath79/patches-5.4/921-serial-core-add-support-for-boot-console-with-arbitr.patch
@@ -0,0 +1,54 @@
+From 4d3c17975c7814884a721fe693b3adf5c426d759 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Tue, 10 Nov 2015 22:18:39 +0100
+Subject: [RFC] serial: core: add support for boot console with arbitrary
+ baud rates
+
+The Arduino Yun uses a baud rate of 250000 by default. The serial is
+going over the Atmel ATmega and is used to connect to this chip.
+Without this patch Linux wants to switch the console to 9600 Baud.
+
+With this patch Linux will use the configured baud rate and not a
+default one specified in uart_register_driver().
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+[rebased to 4.14, slightly reworded commit message]
+Signed-off-by: Sungbo Eo <mans0n@gorani.run>
+---
+ drivers/tty/serial/serial_core.c | 6 +++++-
+ include/linux/console.h | 1 +
+ 2 files changed, 6 insertions(+), 1 deletions(-)
+
+--- a/drivers/tty/serial/serial_core.c
++++ b/drivers/tty/serial/serial_core.c
+@@ -220,6 +220,8 @@ static int uart_port_startup(struct tty_
+ if (retval == 0) {
+ if (uart_console(uport) && uport->cons->cflag) {
+ tty->termios.c_cflag = uport->cons->cflag;
++ tty->termios.c_ospeed = uport->cons->baud;
++ tty->termios.c_ispeed = uport->cons->baud;
+ uport->cons->cflag = 0;
+ }
+ /*
+@@ -2104,8 +2106,10 @@ uart_set_options(struct uart_port *port,
+ * Allow the setting of the UART parameters with a NULL console
+ * too:
+ */
+- if (co)
++ if (co) {
+ co->cflag = termios.c_cflag;
++ co->baud = baud;
++ }
+
+ return 0;
+ }
+--- a/include/linux/console.h
++++ b/include/linux/console.h
+@@ -153,6 +153,7 @@ struct console {
+ short flags;
+ short index;
+ int cflag;
++ int baud;
+ void *data;
+ struct console *next;
+ };