diff options
| author | Heiko Schocher <hs@denx.de> | 2017-01-18 08:05:49 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-01-20 09:15:19 -0500 |
| commit | 17fa032671f7981628fe16b30399638842a4b1bb (patch) | |
| tree | 473870132e1d52495cf5e149aa914f69b7e59709 /include/ns16550.h | |
| parent | 0675f992dbf4a785a05a1baf149c2bce6aa5fe90 (diff) | |
serial, ns16550: bugfix: ns16550 fifo not enabled
commit: 65f83802b7a5b "serial: 16550: Add getfcr accessor"
breaks u-boot commandline working with long commands
sending to the board.
Since the above patch, you have to setup the fcr register.
For board/archs which enable OF_PLATDATA, the new field
fcr in struct ns16550_platdata is not filled with a
default value ...
This leads in not setting up the uarts fifo, which ends
in problems, when you send long commands to u-boots
commandline.
Detected this issue with automated tbot tests on am335x
based shc board.
The error does not popup, if you type commands. You need
to copy&paste a long command to u-boots commandshell
(or send a long command with tbot)
Possible boards/plattforms with problems:
./arch/arm/cpu/arm926ejs/lpc32xx/devices.c
./arch/arm/mach-tegra/board.c
./board/overo/overo.c
./board/quipos/cairo/cairo.c
./board/logicpd/omap3som/omap3logic.c
./board/logicpd/zoom1/zoom1.c
./board/timll/devkit8000/devkit8000.c
./board/lg/sniper/sniper.c
./board/ti/beagle/beagle.c
./drivers/serial/serial_rockchip.c
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'include/ns16550.h')
| -rw-r--r-- | include/ns16550.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/ns16550.h b/include/ns16550.h index 7c97036831..5fcbcd2e74 100644 --- a/include/ns16550.h +++ b/include/ns16550.h @@ -121,6 +121,11 @@ typedef struct NS16550 *NS16550_t; /* Ingenic JZ47xx specific UART-enable bit. */ #define UART_FCR_UME 0x10 +/* Clear & enable FIFOs */ +#define UART_FCR_DEFVAL (UART_FCR_FIFO_EN | \ + UART_FCR_RXSR | \ + UART_FCR_TXSR) + /* * These are the definitions for the Modem Control Register */ |