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| 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 /arch | |
| parent | 0675f992dbf4a785a05a1baf149c2bce6aa5fe90 (diff) | |
| download | u-boot-17fa032671f7981628fe16b30399638842a4b1bb.tar.gz u-boot-17fa032671f7981628fe16b30399638842a4b1bb.tar.bz2 u-boot-17fa032671f7981628fe16b30399638842a4b1bb.zip | |
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 'arch')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/lpc32xx/devices.c | 12 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/board.c | 18 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/board.c | 1 |
3 files changed, 21 insertions, 10 deletions
diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/devices.c b/arch/arm/cpu/arm926ejs/lpc32xx/devices.c index 399b07c542..f744398ca7 100644 --- a/arch/arm/cpu/arm926ejs/lpc32xx/devices.c +++ b/arch/arm/cpu/arm926ejs/lpc32xx/devices.c @@ -45,10 +45,14 @@ void lpc32xx_uart_init(unsigned int uart_id) #if !CONFIG_IS_ENABLED(OF_CONTROL) static const struct ns16550_platdata lpc32xx_uart[] = { - { .base = UART3_BASE, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, - { .base = UART4_BASE, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, - { .base = UART5_BASE, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, - { .base = UART6_BASE, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, + { .base = UART3_BASE, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, + { .base = UART4_BASE, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, + { .base = UART5_BASE, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, + { .base = UART6_BASE, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, }; #if defined(CONFIG_LPC32XX_HSUART) diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c index 73824df18f..190310fd00 100644 --- a/arch/arm/mach-omap2/am33xx/board.c +++ b/arch/arm/mach-omap2/am33xx/board.c @@ -40,14 +40,20 @@ DECLARE_GLOBAL_DATA_PTR; #if !CONFIG_IS_ENABLED(OF_CONTROL) static const struct ns16550_platdata am33xx_serial[] = { - { .base = CONFIG_SYS_NS16550_COM1, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, + { .base = CONFIG_SYS_NS16550_COM1, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, # ifdef CONFIG_SYS_NS16550_COM2 - { .base = CONFIG_SYS_NS16550_COM2, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, + { .base = CONFIG_SYS_NS16550_COM2, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, # ifdef CONFIG_SYS_NS16550_COM3 - { .base = CONFIG_SYS_NS16550_COM3, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, - { .base = CONFIG_SYS_NS16550_COM4, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, - { .base = CONFIG_SYS_NS16550_COM5, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, - { .base = CONFIG_SYS_NS16550_COM6, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK }, + { .base = CONFIG_SYS_NS16550_COM3, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, + { .base = CONFIG_SYS_NS16550_COM4, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, + { .base = CONFIG_SYS_NS16550_COM5, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, + { .base = CONFIG_SYS_NS16550_COM6, .reg_shift = 2, + .clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, }, # endif # endif }; diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c index 3d1d26d13d..b3a041b539 100644 --- a/arch/arm/mach-tegra/board.c +++ b/arch/arm/mach-tegra/board.c @@ -219,6 +219,7 @@ static struct ns16550_platdata ns16550_com1_pdata = { .base = CONFIG_SYS_NS16550_COM1, .reg_shift = 2, .clock = CONFIG_SYS_NS16550_CLK, + .fcr = UART_FCR_DEFVAL, }; U_BOOT_DEVICE(ns16550_com1) = { |