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Nokia RX-51: Enable usbtty serial console by default

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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, enable CONFIG_OPTIMIZE_INLINING
and 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@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Pali Rohár
2021-02-20 11:50:15 +01:00
committed by Marek Vasut
parent 69b78cbf5e
commit 57ac28720d
3 changed files with 13 additions and 31 deletions
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15
doc/README.nokia_rx51
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@@ -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