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| author | Pali Rohár <pali@kernel.org> | 2021-02-20 11:50:15 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2021-03-03 04:12:46 +0100 |
| commit | 57ac28720d41628cdb07df8f024489b09c0a77dc (patch) | |
| tree | 0f2af71faa3add7f91bbec459b39b61b2b62920f /doc/README.nokia_rx51 | |
| parent | 69b78cbf5e227acda0db94d2e6b6ad443d106a9c (diff) | |
| download | u-boot-57ac28720d41628cdb07df8f024489b09c0a77dc.zip u-boot-57ac28720d41628cdb07df8f024489b09c0a77dc.tar.gz u-boot-57ac28720d41628cdb07df8f024489b09c0a77dc.tar.bz2 | |
Nokia RX-51: Enable usbtty serial console by default
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>
Diffstat (limited to 'doc/README.nokia_rx51')
| -rw-r--r-- | doc/README.nokia_rx51 | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/doc/README.nokia_rx51 b/doc/README.nokia_rx51 index 320b5ef..84d1912 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 |