Hi,
On 01/11/2015 15:15, Hauke Mehrtens wrote:
> This is based on patches from Federico Fissore <f.fiss...@arduino.cc>
> especially this one:
> https://github.com/arduino/openwrt-yun/commit/7e2976fa83fb0d72a955574499178c387a1b3c92
>
> The console is running with 250000 baud which is a non standard baud
> rate and needs an extra patch to be applied, I will try to get this
> patch upstream or something else which accomplish the same.
that patch and the gpio one need to commited separatley with a proper
description. i would also remove the Lininio from the patches name.
>
> Some upstream code looks like there are many different versions of this
> SoC, are these only internal versions and all versions on the consumer
> market are the same? I saw different GPIO configuration and flash sizes
> of 8MB and 16MB?
hehe and a shield adapter that does not work with normal 2,54mil
> Should I name it Arduino Yun or Genuino Yun or Linino Yun? My device
> has Arduino Yun printed on it so I would prefer that.
arduino i guess
John
>
> Signed-off-by: Hauke Mehrtens <ha...@hauke-m.de>
> CC: Federico Fissore <f.fiss...@arduino.cc>
> ---
> .../ar71xx/base-files/etc/uci-defaults/01_leds | 5 +
> .../ar71xx/base-files/etc/uci-defaults/02_network | 1 +
> target/linux/ar71xx/base-files/lib/ar71xx.sh | 3 +
> .../ar71xx/base-files/lib/upgrade/platform.sh | 1 +
> target/linux/ar71xx/config-4.1 | 5 +-
> .../files/arch/mips/ath79/mach-arduino-yun.c | 137
> +++++++++++++++++++++
> target/linux/ar71xx/generic/profiles/linino.mk | 18 +++
> target/linux/ar71xx/image/Makefile | 5 +
> .../700-MIPS-ath79-openwrt-machines.patch | 2 +-
> .../817-MIPS-ath79-Linino-gpio-support.patch | 68 ++++++++++
> .../818-MIPS-ath79-Linino-uart-fix-baudrate.patch | 57 +++++++++
> .../819-MIPS-ath79-Linino-support.patch | 42 +++++++
> 12 files changed, 342 insertions(+), 2 deletions(-)
> create mode 100644
> target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c
> create mode 100644 target/linux/ar71xx/generic/profiles/linino.mk
> create mode 100644
> target/linux/ar71xx/patches-4.1/817-MIPS-ath79-Linino-gpio-support.patch
> create mode 100644
> target/linux/ar71xx/patches-4.1/818-MIPS-ath79-Linino-uart-fix-baudrate.patch
> create mode 100644
> target/linux/ar71xx/patches-4.1/819-MIPS-ath79-Linino-support.patch
>
> diff --git a/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
> b/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
> index abed456..8c1a0bc 100644
> --- a/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
> +++ b/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
> @@ -43,6 +43,11 @@ antminer-s3)
> ucidef_set_led_default "lan" "LAN" "antminer-s3:yellow:lan" "0"
> ;;
>
> +arduino-yun)
> + ucidef_set_led_wlan "wlan" "WLAN" "arduino:blue:wlan" "phy0tpt"
> + ucidef_set_led_usbdev "usb" "USB" "arduino:white:usb" "1-1.1"
> + ;;
> +
> ap113)
> ucidef_set_led_usbdev "usb" "USB" "ap113:green:usb" "1-1"
> ;;
> diff --git a/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
> b/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
> index f6ac891..c729594 100644
> --- a/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
> +++ b/target/linux/ar71xx/base-files/etc/uci-defaults/02_network
> @@ -386,6 +386,7 @@ wp543)
> ucidef_set_interface_lan "eth0"
> ;;
>
> +arduino-yun | \
> dir-505-a1)
> ucidef_set_interface_lan "eth1"
> ;;
> diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh
> b/target/linux/ar71xx/base-files/lib/ar71xx.sh
> index 5f02e4e..5a0c322 100755
> --- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
> +++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
> @@ -359,6 +359,9 @@ ar71xx_board_detect() {
> *Antminer-S3)
> name="antminer-s3"
> ;;
> + *"Arduino Yun")
> + name="arduino-yun"
> + ;;
> *AP113)
> name="ap113"
> ;;
> diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
> b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
> index a464fee..987e4cf 100755
> --- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
> +++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
> @@ -173,6 +173,7 @@ platform_check_image() {
> ;;
> alfa-ap96 | \
> alfa-nx | \
> + arduino-yun | \
> ap113 | \
> ap121 | \
> ap121-mini | \
> diff --git a/target/linux/ar71xx/config-4.1 b/target/linux/ar71xx/config-4.1
> index 6d31f67..30f22e6 100644
> --- a/target/linux/ar71xx/config-4.1
> +++ b/target/linux/ar71xx/config-4.1
> @@ -46,6 +46,7 @@ CONFIG_ATH79_MACH_AP81=y
> CONFIG_ATH79_MACH_AP83=y
> CONFIG_ATH79_MACH_AP96=y
> CONFIG_ATH79_MACH_ARCHER_C7=y
> +CONFIG_ATH79_MACH_ARDUINO_YUN=y
> CONFIG_ATH79_MACH_AW_NR580=y
> CONFIG_ATH79_MACH_BHU_BXU2000N2_A=y
> CONFIG_ATH79_MACH_BSB=y
> @@ -192,6 +193,8 @@ CONFIG_CPU_R4K_FPU=y
> CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
> CONFIG_CPU_SUPPORTS_HIGHMEM=y
> CONFIG_CPU_SUPPORTS_MSA=y
> +CONFIG_CRYPTO_RNG2=y
> +CONFIG_CRYPTO_WORKQUEUE=y
> CONFIG_CSRC_R4K=y
> CONFIG_DMA_NONCOHERENT=y
> CONFIG_EARLY_PRINTK=y
> @@ -333,7 +336,7 @@ CONFIG_SOC_AR933X=y
> CONFIG_SOC_AR934X=y
> CONFIG_SOC_QCA953X=y
> CONFIG_SOC_QCA955X=y
> -# CONFIG_SOC_QCA956X is not set
> +CONFIG_SOC_QCA956X=y
> CONFIG_SPI=y
> CONFIG_SPI_AP83=y
> CONFIG_SPI_ATH79=y
> diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c
> b/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c
> new file mode 100644
> index 0000000..fbe1f99
> --- /dev/null
> +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c
> @@ -0,0 +1,137 @@
> +/*
> + * Arduino Yun support
> + *
> + * Copyright (C) 2011-2012 Gabor Juhos <juh...@openwrt.org>
> + * Copyright (C) 2015 Hauke Mehrtens <ha...@hauke-m.de>
> + *
> + * 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 "dev-eth.h"
> +#include "dev-gpio-buttons.h"
> +#include "dev-leds-gpio.h"
> +#include "dev-m25p80.h"
> +#include "dev-spi.h"
> +#include "dev-usb.h"
> +#include "dev-wmac.h"
> +#include "machtypes.h"
> +#include <asm/mach-ath79/ar71xx_regs.h>
> +#include <asm/mach-ath79/ath79.h>
> +#include "common.h"
> +#include "gpio.h"
> +#include "linux/gpio.h"
> +
> +// Uncomment to have reset on gpio18 instead of gipo7
> +#define DS2_B
> +
> +#define DS_GPIO_LED_WLAN 0
> +#define DS_GPIO_LED_USB 1
> +
> +#define DS_GPIO_OE 21
> +#define DS_GPIO_AVR_RESET 18
> +
> +// Maintained to have the console in the previous version of DS2 working
> +#define DS_GPIO_AVR_RESET_DS2 7
> +
> +#define DS_GPIO_OE2 22
> +#define DS_GPIO_UART_ENA 23
> +#define DS_GPIO_CONF_BTN 20
> +
> +#define DS_KEYS_POLL_INTERVAL 20 /* msecs */
> +#define DS_KEYS_DEBOUNCE_INTERVAL (3 * DS_KEYS_POLL_INTERVAL)
> +
> +#define DS_MAC0_OFFSET 0x0000
> +#define DS_MAC1_OFFSET 0x0006
> +#define DS_CALDATA_OFFSET 0x1000
> +#define DS_WMAC_MAC_OFFSET 0x1002
> +
> +
> +static struct gpio_led ds_leds_gpio[] __initdata = {
> + {
> + .name = "arduino:white:usb",
> + .gpio = DS_GPIO_LED_USB,
> + .active_low = 0,
> + },
> + {
> + .name = "arduino:blue:wlan",
> + .gpio = DS_GPIO_LED_WLAN,
> + .active_low = 0,
> + },
> +};
> +
> +static void __init ds_common_setup(void)
> +{
> + static u8 mac[6];
> +
> + u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
> + ath79_register_m25p80(NULL);
> +
> + if (ar93xx_wmac_read_mac_address(mac)) {
> + ath79_register_wmac(NULL, NULL);
> + } else {
> + ath79_register_wmac(art + DS_CALDATA_OFFSET,
> + art + DS_WMAC_MAC_OFFSET);
> + memcpy(mac, art + DS_WMAC_MAC_OFFSET, sizeof(mac));
> + }
> +
> + mac[3] |= 0x08;
> + ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
> +
> + mac[3] &= 0xF7;
> + ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
> + ath79_register_mdio(0, 0x0);
> +
> + /* LAN ports */
> + ath79_register_eth(1);
> +
> + /* WAN port */
> + ath79_register_eth(0);
> +}
> +
> +static void __init ds_setup(void)
> +{
> + u32 t;
> +
> + ds_common_setup();
> +
> + ath79_register_leds_gpio(-1, ARRAY_SIZE(ds_leds_gpio),
> + ds_leds_gpio);
> + ath79_register_usb();
> +
> + //Disable the Function for some pins to have GPIO functionality active
> + // GPIO6-7-8 and GPIO11
> + ath79_gpio_function_setup(AR933X_GPIO_FUNC_JTAG_DISABLE |
> AR933X_GPIO_FUNC_I2S_MCK_EN, 0);
> +
> + ath79_gpio_function2_setup(AR933X_GPIO_FUNC2_JUMPSTART_DISABLE, 0);
> +
> + printk("Setting DogStick2 GPIO\n");
> +
> + t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
> + t |= AR933X_BOOTSTRAP_MDIO_GPIO_EN;
> + ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP, t);
> +
> + // Put the avr reset to high
> + if (gpio_request_one(DS_GPIO_AVR_RESET_DS2,
> + GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0)
> + printk("Error setting GPIO OE\n");
> + gpio_unexport(DS_GPIO_AVR_RESET_DS2);
> + gpio_free(DS_GPIO_AVR_RESET_DS2);
> +
> + // enable OE of level shifter
> + if (gpio_request_one(DS_GPIO_OE,
> + GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0)
> + printk("Error setting GPIO OE\n");
> +
> + if (gpio_request_one(DS_GPIO_UART_ENA,
> + GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "UART-ENA") != 0)
> + printk("Error setting GPIO Uart Enable\n");
> +
> + // enable OE of level shifter
> + if (gpio_request_one(DS_GPIO_OE2,
> + GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-2") != 0)
> + printk("Error setting GPIO OE2\n");
> +}
> +
> +MIPS_MACHINE(ATH79_MACH_ARDUINO_YUN, "Yun", "Arduino Yun", ds_setup);
> diff --git a/target/linux/ar71xx/generic/profiles/linino.mk
> b/target/linux/ar71xx/generic/profiles/linino.mk
> new file mode 100644
> index 0000000..9a34759
> --- /dev/null
> +++ b/target/linux/ar71xx/generic/profiles/linino.mk
> @@ -0,0 +1,18 @@
> +#
> +# Copyright (C) 2009-2010 OpenWrt.org
> +#
> +# This is free software, licensed under the GNU General Public License v2.
> +# See /LICENSE for more information.
> +#
> +
> +define Profile/Yun
> + NAME:=Arduino Yun based on Atheros AR9331
> + PACKAGES:=kmod-usb-core kmod-usb2
> +endef
> +
> +define Profile/Yun/Description
> + Package set optimized for the Arduino Yun.
> +endef
> +
> +$(eval $(call Profile,Yun))
> +
> diff --git a/target/linux/ar71xx/image/Makefile
> b/target/linux/ar71xx/image/Makefile
> index ddc0fc1..7e92a36 100644
> --- a/target/linux/ar71xx/image/Makefile
> +++ b/target/linux/ar71xx/image/Makefile
> @@ -1481,6 +1481,8 @@
> mynet_n600_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,64k(devdat
>
> mynet_rext_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,7808k(firmware),64k(nvram)ro,64k(ART)ro
>
> zyx_nbg6716_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,64k(env)ro,64k(RFdata)ro,-(nbu);ar934x-nfc:2048k(zyxel_rfsd),2048k(romd),1024k(header),2048k(kernel),-(ubi)
>
> qihoo_c301_mtdlayout=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env),64k(devdata),64k(devconf),15744k(firmware),64k(warm_start),64k(action_image_config),64k(radiocfg)ro;spi0.1:15360k(upgrade2),1024k(privatedata)
> +yun_mtdlayout_8M=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,6464k(rootfs),1280k(kernel),64k(nvram),64k(art),7744k@0x50000(firmware)
> +yun_mtdlayout_16M=mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,14656k(rootfs),1280k(kernel),64k(nvram),64k(art),15936k@0x50000(firmware)
>
>
> define Image/BuildKernel
> @@ -2208,6 +2210,8 @@ $(eval $(call
> SingleProfile,AthLzma,64k,WLR8100,wlr8100,WLR8100,ttyS0,115200,$$(
> $(eval $(call
> SingleProfile,AthLzma,64k,WPJ344_16M,wpj344-16M,WPJ344,ttyS0,115200,$$(wpj344_mtdlayout_16M),KRuImage,65536))
> $(eval $(call
> SingleProfile,AthLzma,64k,WPJ531_16M,wpj531-16M,WPJ531,ttyS0,115200,$$(wpj531_mtdlayout_16M),KRuImage,65536))
> $(eval $(call
> SingleProfile,AthLzma,64k,WPJ558_16M,wpj558-16M,WPJ558,ttyS0,115200,$$(wpj558_mtdlayout_16M),KRuImage,65536))
> +$(eval $(call
> SingleProfile,AthLzma,64k,YUN_8M,yun-8M,Yun,ttyATH0,250000,$$(yun_mtdlayout_8M),RKuImage))
> +$(eval $(call
> SingleProfile,AthLzma,64k,YUN_16M,yun-16M,Yun,ttyATH0,250000,$$(yun_mtdlayout_16M),RKuImage))
>
> $(eval $(call
> SingleProfile,Belkin,64k,F9K1115V2,f9k1115v2,F9K1115V2,ttyS0,115200,$$(f9k1115v2_mtdlayout),BR-6679BAC))
>
> @@ -2334,6 +2338,7 @@ $(eval $(call MultiProfile,WPE72,WPE72_4M WPE72_8M
> WPE72_16M))
> $(eval $(call MultiProfile,WPJ344,WPJ344_16M))
> $(eval $(call MultiProfile,WPJ531,WPJ531_16M))
> $(eval $(call MultiProfile,WPJ558,WPJ558_16M))
> +$(eval $(call MultiProfile,Yun,YUN_16M YUN_8M))
>
> $(eval $(call MultiProfile,Minimal,$(SINGLE_PROFILES)))
> $(eval $(call MultiProfile,Madwifi,EAP7660D WP543))
> diff --git
> a/target/linux/ar71xx/patches-4.1/700-MIPS-ath79-openwrt-machines.patch
> b/target/linux/ar71xx/patches-4.1/700-MIPS-ath79-openwrt-machines.patch
> index 17cabe1..324da0c 100644
> --- a/target/linux/ar71xx/patches-4.1/700-MIPS-ath79-openwrt-machines.patch
> +++ b/target/linux/ar71xx/patches-4.1/700-MIPS-ath79-openwrt-machines.patch
> @@ -1721,7 +1721,7 @@
> +obj-$(CONFIG_ATH79_MACH_NBG6716) += mach-nbg6716.o
> --- a/arch/mips/ath79/prom.c
> +++ b/arch/mips/ath79/prom.c
> -@@ -130,6 +130,13 @@ void __init prom_init(void)
> +@@ -136,6 +136,13 @@ void __init prom_init(void)
> initrd_end = initrd_start + fw_getenvl("initrd_size");
> }
> #endif
> diff --git
> a/target/linux/ar71xx/patches-4.1/817-MIPS-ath79-Linino-gpio-support.patch
> b/target/linux/ar71xx/patches-4.1/817-MIPS-ath79-Linino-gpio-support.patch
> new file mode 100644
> index 0000000..2fe5e18
> --- /dev/null
> +++ b/target/linux/ar71xx/patches-4.1/817-MIPS-ath79-Linino-gpio-support.patch
> @@ -0,0 +1,68 @@
> +--- a/arch/mips/ath79/common.h
> ++++ b/arch/mips/ath79/common.h
> +@@ -27,6 +27,7 @@ void ath79_ddr_wb_flush(unsigned int reg
> + void ath79_gpio_function_enable(u32 mask);
> + void ath79_gpio_function_disable(u32 mask);
> + void ath79_gpio_function_setup(u32 set, u32 clear);
> ++void ath79_gpio_function2_setup(u32 set, u32 clear);
> + void ath79_gpio_output_select(unsigned gpio, u8 val);
> + int ath79_gpio_direction_select(unsigned gpio, bool oe);
> + void ath79_gpio_init(void);
> +--- a/arch/mips/ath79/gpio.c
> ++++ b/arch/mips/ath79/gpio.c
> +@@ -193,6 +193,36 @@ static void __iomem *ath79_gpio_get_func
> + return ath79_gpio_base + reg;
> + }
> +
> ++static void __iomem *ath79_gpio_get_function2_reg(void)
> ++{
> ++ u32 reg = 0;
> ++
> ++ if (soc_is_ar71xx() ||
> ++ soc_is_ar724x() ||
> ++ soc_is_ar913x() ||
> ++ soc_is_ar933x())
> ++ reg = AR71XX_GPIO_REG_FUNC_2;
> ++ else
> ++ BUG();
> ++
> ++ return ath79_gpio_base + reg;
> ++}
> ++
> ++
> ++void ath79_gpio_function2_setup(u32 set, u32 clear)
> ++{
> ++ void __iomem *reg = ath79_gpio_get_function2_reg();
> ++ unsigned long flags;
> ++
> ++ spin_lock_irqsave(&ath79_gpio_lock, flags);
> ++
> ++ __raw_writel((__raw_readl(reg) & ~clear) | set, reg);
> ++ /* flush write */
> ++ __raw_readl(reg);
> ++
> ++ spin_unlock_irqrestore(&ath79_gpio_lock, flags);
> ++}
> ++
> + void ath79_gpio_function_setup(u32 set, u32 clear)
> + {
> + void __iomem *reg = ath79_gpio_get_function_reg();
> +--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
> ++++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
> +@@ -840,6 +840,7 @@
> + #define AR71XX_GPIO_REG_INT_PENDING 0x20
> + #define AR71XX_GPIO_REG_INT_ENABLE 0x24
> + #define AR71XX_GPIO_REG_FUNC 0x28
> ++#define AR71XX_GPIO_REG_FUNC_2 0x30
> +
> + #define AR934X_GPIO_REG_OUT_FUNC0 0x2c
> + #define AR934X_GPIO_REG_OUT_FUNC1 0x30
> +@@ -964,6 +965,8 @@
> + #define AR724X_GPIO_FUNC_UART_EN BIT(1)
> + #define AR724X_GPIO_FUNC_JTAG_DISABLE BIT(0)
> +
> ++#define AR933X_GPIO_FUNC2_JUMPSTART_DISABLE BIT(9)
> ++
> + #define AR913X_GPIO_FUNC_WMAC_LED_EN BIT(22)
> + #define AR913X_GPIO_FUNC_EXP_PORT_CS_EN BIT(21)
> + #define AR913X_GPIO_FUNC_I2S_REFCLKEN BIT(20)
> diff --git
> a/target/linux/ar71xx/patches-4.1/818-MIPS-ath79-Linino-uart-fix-baudrate.patch
>
> b/target/linux/ar71xx/patches-4.1/818-MIPS-ath79-Linino-uart-fix-baudrate.patch
> new file mode 100644
> index 0000000..c64bdb2
> --- /dev/null
> +++
> b/target/linux/ar71xx/patches-4.1/818-MIPS-ath79-Linino-uart-fix-baudrate.patch
> @@ -0,0 +1,57 @@
> +--- a/drivers/tty/serial/serial_core.c
> ++++ b/drivers/tty/serial/serial_core.c
> +@@ -164,6 +164,8 @@ 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;
> + }
> + /*
> +@@ -1901,7 +1903,7 @@ static const struct baud_rates baud_rate
> + { 4800, B4800 },
> + { 2400, B2400 },
> + { 1200, B1200 },
> +- { 0, B38400 }
> ++ { 0, BOTHER }
> + };
> +
> + /**
> +@@ -1940,10 +1942,13 @@ uart_set_options(struct uart_port *port,
> + * Construct a cflag setting.
> + */
> + for (i = 0; baud_rates[i].rate; i++)
> +- if (baud_rates[i].rate <= baud)
> ++ if (baud_rates[i].rate == baud)
> + break;
> +
> + termios.c_cflag |= baud_rates[i].cflag;
> ++ if (!baud_rates[i].rate) {
> ++ termios.c_ospeed = baud;
> ++ }
> +
> + if (bits == 7)
> + termios.c_cflag |= CS7;
> +@@ -1973,8 +1978,10 @@ 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
> +@@ -127,6 +127,7 @@ struct console {
> + short flags;
> + short index;
> + int cflag;
> ++ int baud;
> + void *data;
> + struct console *next;
> + };
> diff --git
> a/target/linux/ar71xx/patches-4.1/819-MIPS-ath79-Linino-support.patch
> b/target/linux/ar71xx/patches-4.1/819-MIPS-ath79-Linino-support.patch
> new file mode 100644
> index 0000000..7007310
> --- /dev/null
> +++ b/target/linux/ar71xx/patches-4.1/819-MIPS-ath79-Linino-support.patch
> @@ -0,0 +1,42 @@
> +--- a/arch/mips/ath79/Kconfig
> ++++ b/arch/mips/ath79/Kconfig
> +@@ -76,6 +76,19 @@ config ATH79_MACH_ANTMINER_S3
> + select ATH79_DEV_USB
> + select ATH79_DEV_WMAC
> +
> ++config ATH79_MACH_ARDUINO_YUN
> ++ bool "Arduino Yun"
> ++ select SOC_AR933X
> ++ select ATH79_DEV_ETH
> ++ select ATH79_DEV_GPIO_BUTTONS
> ++ select ATH79_DEV_LEDS_GPIO
> ++ select ATH79_DEV_M25P80
> ++ select ATH79_DEV_USB
> ++ select ATH79_DEV_WMAC
> ++ help
> ++ Say 'Y' here if you want your kernel to support the
> ++ Arduino Yun.
> ++
> + config ATH79_MACH_AP113
> + bool "Atheros AP113 board support"
> + select SOC_AR724X
> +--- a/arch/mips/ath79/machtypes.h
> ++++ b/arch/mips/ath79/machtypes.h
> +@@ -23,6 +23,7 @@ enum ath79_mach_type {
> + ATH79_MACH_ALL0315N, /* Allnet ALL0315N */
> + ATH79_MACH_ANTMINER_S1, /* Antminer S1 */
> + ATH79_MACH_ANTMINER_S3, /* Antminer S3 */
> ++ ATH79_MACH_ARDUINO_YUN, /* Yun */
> + ATH79_MACH_AP113, /* Atheros AP113 reference board */
> + ATH79_MACH_AP121, /* Atheros AP121 reference board */
> + ATH79_MACH_AP121_MINI, /* Atheros AP121-MINI reference board */
> +--- a/arch/mips/ath79/Makefile
> ++++ b/arch/mips/ath79/Makefile
> +@@ -44,6 +44,7 @@ obj-$(CONFIG_ATH79_MACH_ALL0258N) += mac
> + obj-$(CONFIG_ATH79_MACH_ALL0315N) += mach-all0315n.o
> + obj-$(CONFIG_ATH79_MACH_ANTMINER_S1)+= mach-antminer-s1.o
> + obj-$(CONFIG_ATH79_MACH_ANTMINER_S3)+= mach-antminer-s3.o
> ++obj-$(CONFIG_ATH79_MACH_ARDUINO_YUN) += mach-arduino-yun.o
> + obj-$(CONFIG_ATH79_MACH_AP113) += mach-ap113.o
> + obj-$(CONFIG_ATH79_MACH_AP121) += mach-ap121.o
> + obj-$(CONFIG_ATH79_MACH_AP132) += mach-ap132.o
>
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