[PATCH v2] Nokia RX-51: Enable usbtty serial console by default
Lokesh Vutla
lokeshvutla at ti.com
Tue Dec 22 15:26:51 CET 2020
On 01/12/20 12:57 am, Pali Rohár wrote:
> Now when usbtty serial console is fixed in U-Boot enable CONFIG_USB_TTY for
> Nokia RX-51 board by default.
>
> Fix also USB product id as U-Boot ignores CONFIG_USBD_PRODUCTID macro and
> include U-Boot string into USB product name to indicate usage of U-Boot.
>
> CONFIG_CONSOLE_MUX is already used and U-Boot console is available for
> all in/out devices. Therefore there is no need to have separate commands
> 'run sercon', 'run usbcon' and 'run vgacon', so remove them.
>
> As space for U-Boot is limited to 256kB, disable some other unused options
> so CONFIG_USB_TTY can be enabled.
>
> Nokia RX-51 does not have easily accessible UART serial console so the only
> option for easy debugging is to use device's keyboard+screen or this usbtty
> serial console over USB.
>
> Signed-off-by: Pali Rohár <pali at kernel.org>
> ---
> Changes since v1:
> * Fixed USB product id and product name
> * Disabled some other options to free more space
> * Changes now passed CI tests:
> https://dev.azure.com/u-boot/u-boot/_build/results?buildId=1492&view=results
>
> Note that this patch depends on other Nokia RX-51 patches which are on
> mailing list, otherwise CI tests do not pass:
>
> https://patchwork.ozlabs.org/project/uboot/patch/20201121223011.14262-1-pali@kernel.org/
> https://patchwork.ozlabs.org/project/uboot/patch/20201121223317.14347-1-pali@kernel.org/
> https://patchwork.ozlabs.org/project/uboot/patch/20201129161505.5092-1-pali@kernel.org/
> https://patchwork.ozlabs.org/project/uboot/patch/20201130191034.795-1-pali@kernel.org/
okay, Ill wait for all these patches to get merged, before I pick this patch.
Thanks and regards,
Lokesh
> ---
> configs/nokia_rx51_defconfig | 8 +++++---
> doc/README.nokia_rx51 | 15 +--------------
> include/configs/nokia_rx51.h | 21 +++++++--------------
> 3 files changed, 13 insertions(+), 31 deletions(-)
>
> diff --git a/configs/nokia_rx51_defconfig b/configs/nokia_rx51_defconfig
> index 0f05fe6fc3..963dd145ce 100644
> --- a/configs/nokia_rx51_defconfig
> +++ b/configs/nokia_rx51_defconfig
> @@ -44,18 +44,16 @@ CONFIG_MTDPARTS_DEFAULT="mtdparts=onenand:128k(bootloader)ro,384k(config),256k(l
> CONFIG_ENV_OVERWRITE=y
> CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> # CONFIG_NET is not set
> -CONFIG_TWL4030_LED=y
> # CONFIG_MMC_HW_PARTITIONING is not set
> +# CONFIG_MMC_VERBOSE is not set
> CONFIG_MMC_OMAP_HS=y
> CONFIG_MTD=y
> CONFIG_CONS_INDEX=3
> CONFIG_SYS_NS16550=y
> CONFIG_SPI=y
> CONFIG_USB=y
> -CONFIG_USB_MUSB_HCD=y
> CONFIG_USB_MUSB_UDC=y
> CONFIG_USB_OMAP3=y
> -CONFIG_TWL4030_USB=y
> CONFIG_CFB_CONSOLE=y
> CONFIG_CFB_CONSOLE_ANSI=y
> # CONFIG_VGA_AS_SINGLE_DEVICE is not set
> @@ -66,3 +64,7 @@ CONFIG_DM_I2C=y
> CONFIG_DM_MMC=y
> # CONFIG_DM_DEVICE_REMOVE is not set
> # CONFIG_SYS_MALLOC_F is not set
> +# CONFIG_DM_WARN is not set
> +# CONFIG_DM_SEQ_ALIAS is not set
> +# CONFIG_BLOCK_CACHE is not set
> +# CONFIG_SYS_DEVICE_NULLDEV is not set
> diff --git a/doc/README.nokia_rx51 b/doc/README.nokia_rx51
> index 320b5efc7d..84d1912ddd 100644
> --- a/doc/README.nokia_rx51
> +++ b/doc/README.nokia_rx51
> @@ -24,8 +24,7 @@ called u-boot-gen-combined. It is available in following repository:
> There is support for hardware watchdog. Hardware watchdog is started by
> NOLO so u-boot must kick watchdog to prevent reboot device (but not very
> often, max every 2 seconds). There is also support for framebuffer display
> -output with ANSI escape codes and the N900 HW keyboard input. USB tty works
> -but is disabled because it prevents the current Maemo kernel from booting.
> +output with ANSI escape codes and the N900 HW keyboard input.
>
> When U-Boot is starting it enable IBE bit in Auxiliary Control Register,
> which is needed for Thumb-2 ISA support. It is workaround for errata 430973.
> @@ -49,10 +48,6 @@ Boot from SD or eMMC in this order:
>
> Available additional commands/variables:
>
> - * run sercon - Use serial port for control
> - * run usbcon - Use usbtty for control
> - * run vgacon - Use framebuffer and HW keyboard for control (default)
> -
> * run sdboot - Boot from external SD card (see boot order)
> * run emmcboot - Boot from internal eMMC memory (see boot order)
> * run attachboot - Boot attached kernel image (attached to U-Boot binary)
> @@ -87,14 +82,6 @@ Additional variables for booting kernel:
> and u-boot standard output is set to serial then setup_console_atag is
> automatically set to 1. So output from Maemo kernel would go to serial port.
>
> -USB TTY:
> -
> - Maemo kernel 2.6.28 will crash if u-boot enable usb tty. So USB TTY is disabled.
> - For enabling USB TTY just add this line to file include/configs/nokia_rx51.h
> -
> - #define CONFIG_USB_TTY
> -
> -
> UBIFS support:
>
> UBIFS support is disabled, because U-Boot image is too big and cannot be
> diff --git a/include/configs/nokia_rx51.h b/include/configs/nokia_rx51.h
> index 3f2700d8e2..23368de624 100644
> --- a/include/configs/nokia_rx51.h
> +++ b/include/configs/nokia_rx51.h
> @@ -70,10 +70,12 @@
>
> /* USB device configuration */
> #define CONFIG_USB_DEVICE
> +#define CONFIG_USB_TTY
> #define CONFIG_USBD_VENDORID 0x0421
> -#define CONFIG_USBD_PRODUCTID 0x01c8
> +#define CONFIG_USBD_PRODUCTID_CDCACM 0x01c8
> +#define CONFIG_USBD_PRODUCTID_GSERIAL 0x01c8
> #define CONFIG_USBD_MANUFACTURER "Nokia"
> -#define CONFIG_USBD_PRODUCT_NAME "N900"
> +#define CONFIG_USBD_PRODUCT_NAME "N900 (U-Boot)"
>
> #define GPIO_SLIDE 71
>
> @@ -108,15 +110,9 @@ int rx51_kp_getc(struct stdio_dev *sdev);
> /* Environment information */
> #define CONFIG_EXTRA_ENV_SETTINGS \
> "usbtty=cdc_acm\0" \
> - "stdin=serial,vga\0" \
> - "stdout=serial,vga\0" \
> - "stderr=serial,vga\0" \
> - "setcon=setenv stdin ${con};" \
> - "setenv stdout ${con};" \
> - "setenv stderr ${con}\0" \
> - "sercon=setenv con serial; run setcon\0" \
> - "usbcon=setenv con usbtty; run setcon\0" \
> - "vgacon=setenv con vga; run setcon\0" \
> + "stdin=usbtty,serial,vga\0" \
> + "stdout=usbtty,serial,vga\0" \
> + "stderr=usbtty,serial,vga\0" \
> "slide=gpio input " __stringify(GPIO_SLIDE) "\0" \
> "switchmmc=mmc dev ${mmcnum}\0" \
> "kernaddr=0x82008000\0" \
> @@ -198,9 +194,6 @@ int rx51_kp_getc(struct stdio_dev *sdev);
> #define CONFIG_POSTBOOTMENU \
> "echo;" \
> "echo Extra commands:;" \
> - "echo run sercon - Use serial port for control.;" \
> - "echo run usbcon - Use usbtty for control.;" \
> - "echo run vgacon - Use framebuffer/keyboard.;" \
> "echo run sdboot - Boot from SD card slot.;" \
> "echo run emmcboot - Boot internal eMMC memory.;" \
> "echo run attachboot - Boot attached kernel image.;" \
>
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