Not draining the FIFO and waiting for the UART to be non-busy
before changing baudrate results in crap characters on the
console, so let's wait for the FIFO to drain and the last
character to be clocked out before we do that.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
There is a rather subtle build problem where the build time stamp is not
updated for out-of-tree builds if there exists an in-tree build which
has a valid timestamp file. So if you do an in-tree build, then an
out-of-tree build your timestamp will not change.
The correct timestamp_autogenerated.h lives in the object tree, but it
is not always found there. The source still lives in the source tree and
when compiling version.h, it includes timestamp_autogenerated.h. Since
the current directory is always searched first, this will come from the
source tree rather than the object tree if it exists there. This affects
dependency generation also, which means that common/cmd_version.o will not
even be rebuilt if you have ever done an in-tree build.
A similar problem exists with the version file.
This change moves both files into the 'generated' subdir, which is already
used for asm-offsets.h. Then timestamp.h and version.h are updated to
include the files from there.
There are other places where these generated files are included, but I
cannot see why these don't just use the timestamp.h and version.h headers.
So this change also tidies that up.
I have tested this with in- and out-of-tree builds, but not SPL. I have
looked at various other options for fixing this, including sed on the dep
files, -I- and -include flags to gcc, but I don't think they can be made
to work. Comments welcome.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This uart simply writes to stdout and reads from stdin. We might imagine
instead buffering the data so that a test interface can check output and
inject input.
Signed-off-by: Simon Glass <sjg@chromium.org>
If CONFIG_SYS_NS16550_MEM32 is defined then 32 bit memory
mapped access will be used to read/write the uart registers.
This is especially useful for SoC devices that implement 16550
compatible uarts but that have peripheral access width constraints.
Signed-off-by: Dave Aldridge <fovsoft@gmail.com>
The rsk7264 (also know as rsk2+sh7264) is an SH2A based board
with 64MB NAND flash and 64MB SDRAM. It is very similar to the
rsk7203 board.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
The multi serial support has a "ctlr" field which almost no one uses,
but everyone is forced to set to useless strings. So punt it.
Funny enough, the only code that actually reads this field (the mpc8xx
driver) has a typo where it meant to look for the SCC driver. Fix it
while converting the check to use the name field.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Heiko Schocher <hs@denx.de>
CC: Anatolij Gustschin <agust@denx.de>
CC: Tom Rix <Tom.Rix@windriver.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
CC: Craig Nauman <cnauman@diagraph.com>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Prafulla Wadaskar <prafulla@marvell.com>
CC: Mahavir Jain <mjain@marvell.com>
Rather than sticking arch/board/driver specific logic in the common
serial code, push it all out to the respective drivers. The serial
drivers declare these funcs weak so that boards can still override
things with their own definition.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Heiko Schocher <hs@denx.de>
CC: Anatolij Gustschin <agust@denx.de>
CC: Tom Rix <Tom.Rix@windriver.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
CC: Craig Nauman <cnauman@diagraph.com>
CC: Prafulla Wadaskar <prafulla@marvell.com>
CC: Mahavir Jain <mjain@marvell.com>
Tested-by: Minkyu Kang <mk7.kang@samsung.com>
The 'trab' board configuration is broken, and there is nobody who is
interested and willing to fix it. Drop it.
This includes support for VFD displays which have always been used by
this board only.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Two new options:
CONFIG_PL011_SERIAL_RLCR
Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500)
have separate receive and transmit line control registers. Set
this variable to initialize the extra register.
CONFIG_PL011_SERIAL_FLUSH_ON_INIT
On some platforms (e.g. U8500) U-Boot is loaded by a second stage
boot loader that has already initialized the UART. Define this
variable to flush the UART at init time.
empty fifo on init
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
As exception among the i.MX processors, the i.MX31 has headers
without general names (mx31-regs.h, mx31.h instead of imx-regs.h and
clock.h). This requires several nasty #ifdef in the drivers to
include the correct header. The patch cleans up the driver and
renames the header files as for the other i.MX processors.
Signed-off-by: Stefano Babic <sbabic@denx.de>
The serial of ap325rxa has it of two kinds, and the setting of
the clock is different.
Because there was a problem by function to judge serial kind,
this revised it.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
I copied the setting of CPU from Linux kernel and commonized it.
By this, we can communalize a kernel and information.
And added the serial setting of many CPU's.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
It can be optimised out by the compiler otherwise resulting
in obscure errors like a board not booting.
This has been documented in README since 2006 when these were
first fixed up for GCC 4.x.
Signed-off-by: John Rigby <john.rigby@linaro.org>
Fix some additional places.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-By: Albert ARIBAUD <albert.aribaud@free.fr>
ARMADA 100 SoCs has NS16550 compatible UART peripheral
This patch enables the same for ARMADA100 platforms
Signed-off-by: Mahavir Jain <mjain@marvell.com>
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
On some processors this ier register configuration is different
for ex. Marvell Armada100
This patch introduce CONFIG_SYS_NS16550_IER macro support to
unconditionally initialize this register.
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Use C structs for registers, and use readl/writel instead of custom
accessors.
Acked-by: Michael Brandt <michael.brandt@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Use C structs for registers, and use readl/writel instead of custom
accessors.
Acked-by: Michael Brandt <michael.brandt@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
This patch adds generic support for the Samsung s3c2440 processor.
Global s3c24x0 changes to struct members converting from upper case to
lower case.
Signed-off-by: Craig Nauman <cnauman@diagraph.com>
Cc: kevin.morfitt@fearnside-systems.co.uk
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch is for s5pc210 support.
Due to the resigter of baudrate is changed from slot to value,
add both of them to uart structure.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Call watchdog_reset() upon newline. This is done here in putc
since the environment code uses a single puts() to print the complete
envrironment upon "printenv". So we can't put this watchdog call
in puts().
This is needed for boards with a very short watchdog timeout, like the
lwmon5 with a 100ms timeout. Without this patch this board resets in the
commands with long outputs, like "printenv" or "fdt print".
Note that the image size is not increased with this patch when
CONFIG_HW_WATCHDOG or CONFIG_WATCHDOG are not defined since the compiler
optimizes this additional code away.
Signed-off-by: Stefan Roese <sr@denx.de>
Fix typo in comment.
Signed-off-by: Wolfgang Denk <wd@denx.de>
The pl01x serial driver was lacking the code to switch baudrates from the
command line. Fixed by simply saving the new baudrate and calling
serial_init() again. Also fixed CamelCase variables, I/O accessors and
comment style.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
CONFIG_UART1_CONSOLE was a PPC4xx specific implementation and is now
removed since the move from the 4xx UART driver to the common NS16550
UART driver. Let's remove all references to this define now.
Signed-off-by: Stefan Roese <sr@denx.de>
Because of peripheral devices can select clock sources,
separate the peripheral clocks. (pwm, uart and so on)
It just return the pclk at s5pc1xx SoC,
but s5pc210 SoC must be calculated by own clock register setting.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch is intended to prepare the other S5P SoC. (s5pc210)
If use SoC specific defines then can't share with other SoC.
So, make the accessor functions for access the base address by common way.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
remove below warnings
serial_s5p.c: In function 'serial_getc_dev':
serial_s5p.c:136: warning: dereferencing type-punned pointer will break strict-aliasing rules
serial_s5p.c: In function 'serial_putc_dev':
serial_s5p.c:152: warning: dereferencing type-punned pointer will break strict-aliasing rules
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
The x86 architecture exclusively uses Port-Mapped I/O (inb/outb) to access
the 16550 UARTs. This patch mimics how Linux selects between Memory-Mapped
and Port-Mapped I/O. This allows x86 boards to use CONFIG_SERIAL_MUTLI and
drop the custom serial port driver
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
Because of other s5p series SoC will use these serial functions,
modify function's name and structure's name.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This patch adds an option to bypass output waiting when there
is no jtag connection. This allows the jtag uart work similar
to a serial uart, ie, boot even without connection.
This option is enabled with CONFIG_ALTERA_JTAG_UART_BYPASS
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
Subsequent patch extends mpc512x serial driver to support
multiple PSC ports. The driver will provide an uninit()
function to stop the serial controller and to disable the
controller's clock. Adding uninit() entry to struct serial_device
allows disabling the serial controller after usage of
a stdio serial device.
This patch adds uninit() entry to the struct serial_device
and fixes initialization of this structure in the code
accordingly.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.
Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
Because of other s5p series SoC will use these serial functions,
modify function's name and structure's name.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Linus Walleij
Simon Glass
Michal Simek
Dave Aldridge
Phil Edworthy
Mike Frysinger
Aneesh V
Andreas Bießmann
Michael Schwingen
Wolfgang Denk
Reinhard Meyer
John Rigby
Stefano Babic
Lei Wen
Tom Warren
Minkyu Kang
Liu Hui-R64343
Nobuhiro Iwamatsu
Nobuhiro Iwamatsu
Prafulla Wadaskar
Rabin Vincent
Sebastien Carlier
C Nauman
Marek Vasut
Stefan Roese
Matt Waddel
Andreas Bießmann
Albert Aribaud
Graeme Russ
Thomas Chou
Anatolij Gustschin