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Signed-off-by: Vikas Manocha <[email protected]>
Acked-by: Simon Glass <[email protected]>
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pl010 & pl011 have different control register offsets, setting it as per
the pl01x type.
Signed-off-by: Vikas Manocha <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Receive line control uses same setting as transmit line control, also one lcrh
write is effective for both baud rate & receive line control internal update.
Signed-off-by: Vikas Manocha <[email protected]>
Acked-by: Simon Glass <[email protected]>
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UART_IBRD, UART_FBRD, and UART_LCR_H form a single 30-bit wide register which
is updated on a single write strobe generated by a UART_LCR_H write. So, to
internally update the content of UART_IBRD or UART_FBRD, a write to UART_LCR_H
must always be performed at the end.
Signed-off-by: Vikas Manocha <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Although we were checking the pl01x type, seems like PL010 type was being
passed by mistake.
Signed-off-by: Vikas Manocha <[email protected]>
Acked-by: Simon Glass <[email protected]>
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The same problem that is seen on some OMAP3 is also seen on some OMAP4
so include them in the test in order to prevent some hangs during SPL.
[trini: Re-word commit message, make apply cleanly]
Signed-off-by: Tom Rini <[email protected]>
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This commit implements the ofdata_to_platdata handler for the UniPhier
serial driver and adds serial device nodes to the device tree sources.
Signed-off-by: Masahiro Yamada <[email protected]>
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The fdt_path_offset() checks an alias too.
fdtdec_get_alias_node(blob, "foo") is equivalent to
fdt_path_offset(blob, "foo").
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Conflicts:
drivers/serial/serial-uclass.c
Signed-off-by: Tom Rini <[email protected]>
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Conflicts:
arch/x86/cpu/Makefile
Signed-off-by: Tom Rini <[email protected]>
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U-Boot has never cared about the type when we get max/min of two
values, but Linux Kernel does. This commit gets min, max, min3, max3
macros synced with the kernel introducing type checks.
Many of references of those macros must be fixed to suppress warnings.
We have two options:
- Use min, max, min3, max3 only when the arguments have the same type
(or add casts to the arguments)
- Use min_t/max_t instead with the appropriate type for the first
argument
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Acked-by: Lukasz Majewski <[email protected]>
Tested-by: Lukasz Majewski <[email protected]>
[trini: Fixup arch/blackfin/lib/string.c]
Signed-off-by: Tom Rini <[email protected]>
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Since we currently don't have device tree available in SPL, add platform
data so the uart works.
Signed-off-by: Simon Glass <[email protected]>
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Provide a CONFIG_DM_STDIO option to enable registering a serial device
with the stdio library. This is seldom useful in SPL, so disable it by
default when building for SPL.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Implement this feature in the uclass so that the baudrate can be changed
with 'setenv baudrate <rate>'.
Signed-off-by: Simon Glass <[email protected]>
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Add driver model support while retaining the existing legacy code. This
allows the driver to support boards that have converted to driver model
as well as those that have not.
Signed-off-by: Simon Glass <[email protected]>
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Before adding driver model support, split out a few of the functions so
that they can be used by the driver model code.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Andreas Bießmann <[email protected]>
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In general we can't store things in the data section until we have inited
SDRAM. Some platforms allow this (e.g. those with SPL) but some don't. Move
the pointer to global_data so that it will work on all platforms.
Without this fix the serial port will not work prior to relocation with
driver model on some platforms.
Signed-off-by: Simon Glass <[email protected]>
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This commit moves CONFIG_SH2, CONFIG_SH2A, CONFIG_SH3, CONFIG_SH4
to Kconfig renaming into CONFIG_CPU_SH2, CONFIG_CPU_SH2A,
CONFIG_CPU_SH3, CONFIG_CPU_SH4, respectively because
arch/sh/Kconfig of Linux uses CONFIG_CPU_SH* convention.
Signed-off-by: Masahiro Yamada <[email protected]>
Cc: Nobuhiro Iwamatsu <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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The same bit-field macros are defined in include/linux/serial_reg.h
so let's include it and delete duplicated defines.
Also, remove unnecessary inclusion of <common.h>.
Signed-off-by: Masahiro Yamada <[email protected]>
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Add a driver for the designware serial UART used on sunxi. This just
redirects to the normal ns16550 driver.
Add a stdout-path to the device tree so that the correct UART is chosen.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
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While at it, sort them.
Cc: Tom Rini <[email protected]>
Cc: Simon Glass <[email protected]>
Signed-off-by: Jeroen Hofstee <[email protected]>
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The baud rate setting of external clock is enabled.
Signed-off-by: Hisashi Nakamura <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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This adds the preset value to register for R8A7793.
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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Signed-off-by: Masahiro Yamada <[email protected]>
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Without .pending handler, tstc() function always returns 1.
Signed-off-by: Masahiro Yamada <[email protected]>
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Fix a trivial conflict over adding <dm.h>
Conflicts:
arch/arm/cpu/armv7/omap3/board.c
Signed-off-by: Tom Rini <[email protected]>
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Signed-off-by: Jeroen Hofstee <[email protected]>
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The UniPhier serial driver has been converted to driver model.
Let's remove uniphier_serial_initialize() call from the old
serial driver framework.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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This commit converts UniPhier on-chip serial driver to driver model.
Since UniPhier SoCs do not have Device Tree support, some board files
should be added under arch/arm/cpu/armv7/uniphier/ph1-*/ directories.
(Device Tree support for UniPhier platform is still under way.)
Now the base address and master clock frequency are passed from
platform data, so CONFIG_SYS_UNIPHIER_SERIAL_BASE* and
CONFIG_SYS_UNIPHIER_UART_CLK should be removed.
Tested on UniPhier PH1-LD4 ref board.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Create entries of CONFIG_DM, CONFIG_DM_SERIAL, CONFIG_DM_GPIO
and CONFIG_DM_SPI.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Commit b8893327e9d2 (dm: serial: Put common code into separate functions)
consolidated getc() and putc(). This commit does more puts() and tsts().
Also rename locally used functions to _serial_*() for clarification
because we have similar functions names here are there in this file.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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The type (void *) can be directly passed to a function that
takes a specific pointer type.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Commit b8893327e9d2 (dm: serial: Put common code into separate functions)
consolidated getc() correctly, but introduced another bug to putc();
serial_stub_putc() passes sdev->priv to serial_putc_dev(), but
serial_putc_dev() uses cur_dev instead of the given argument.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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The functions _serial_putc, _serial_putc_raw, _serial_puts,
_serial_getc, _serial_tstc, _serial_setbrg are defined and used
locally in each of serial_ns16550.c and serial_s3c24x0.c.
Add static directive to them and remove declarations from
include/common.h.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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The platform_data definitions are generally referenced from both
drivers and board files. That is why header files defining
platform_data sturectures are placed in "include" directory,
but our top level "include" directory is already too cluttered.
Let's collect platform_data definitions under the directory
"include/dm/platform_data" like Linux gathers ones around under
"include/linux/platform_data".
This commit moves two header files:
include/serial_mxc.h -> include/dm/platform_data/serial_mxc.h
include/serial_pl01x.h -> include/dm/platform_data/serial_pl01x.h
Signed-off-by: Masahiro Yamada <[email protected]>
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This makes use of the existing device tree node to use driver model
for the serial console.
Signed-off-by: Simon Glass <[email protected]>
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This generates a warning when driver model is enabled, so fix it by adding
a cast.
Signed-off-by: Simon Glass <[email protected]>
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Add driver model support to this driver, while retaining support for the
legacy system. Driver model serial support is enabled with CONFIG_DM_SERIAL
as usual.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Try to use this option to select the correct uart for the console. This
mimics the behaviour of drivers/serial.c.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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The probe logic sets up the pointer to the platform data in the device
tree decode method. It should be done in the probe() method, and anyway
the device tree decode method can't be used when CONFIG_OF_CONTROL is
not enabled.
Fix these two problems.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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It is inconvenient to have to use casts when specifying platform data. Also
it is not strictly correct, since we should use map_sysmem() to convert an
address to a pointer.
Adjust the platform data to use an address.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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There is a bug in the logic which checks for an available character. This
can cause invalid characters to be received - this was noticed on
beaglebone. Fix it.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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We have moved the busy-wait loop out of drivers and into the uclass. This
means that we must reset the watchdog when busy-waiting.
Note: some drivers may still have a busy-wait even with driver model, as
a transition mechanism. Driver model will tolerate this, and is can be
cleaned up when all users of the driver use driver model. An example is
ns16550.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Add driver model support in this driver, using platform data provided by
the board.
Signed-off-by: Simon Glass <[email protected]>
Tested-by: Stephen Warren <[email protected]>
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Adjust the driver so that leaf functions take a pointer to the serial port
register base. Put all the global configuration in the init function, and
use the same settings from then on.
This makes it much easier to move to driver model without duplicating the
code, since with driver model we use platform data rather than global
settings.
The driver is compiled with either the CONFIG_PL010_SERIAL or
CONFIG_PL011_SERIAL option and this determines the uart type. With driver
model this needs to come in from platform data, so create a new
CONFIG_PL01X_SERIAL config which brings in the driver, and adjust the
driver to support both peripheral variants.
Signed-off-by: Simon Glass <[email protected]>
Tested-by: Stephen Warren <[email protected]>
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