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Unify serial_x86, and use the generic binding.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Add generic binding to unify ns16550 drivers. There are
several drivers using almost the same code, such as serial_dw,
serial_keystone, serial_omap, serial_ppc, serial_rockchip,
serial_tegra.c, and serial_x86. But each is platform specific.
The key difference between these drivers is the way to get
input clock frequency. With this unified approach, fixed clock
frequency should be extracted from "clock-frequency" property of
device tree blob. If this property is not available, the macro
CONFIG_SYS_NS16550_CLK will be used. It can be a constant or a
function to get clock, eg, get_serial_clock().
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Change map_sysmem() to map_physmem(,,MAP_NOCACHE). Though map_sysmem()
can be used to map system memory, it might be wrong to use it for I/O
ports. The map_physmem() serves the same purpose to translate physical
address to virtual address with the additional flag to take care of cache
property. Most drivers use map_physmem() since I/O ports access should be
uncached. As ns16550 is a driver, it should use map_physmem() rather
than map_sysmem().
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Since commit 220e8021af96 ("nios2: convert altera_jtag_uart to
driver model"), the default debug uart was changed. Most people
use ns16550 UART, so restore it as default.
Signed-off-by: Thomas Chou <[email protected]>
Reported-by: Ezequiel Garcia <[email protected]>
Reported-by: Ariel D'Alessandro <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Change ioremap() to map_physmem(), as it is more used in u-boot.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Change ioremap() to map_physmem(), as it is more used in u-boot.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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Signed-off-by: Francois Retief <[email protected]>
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Follow commit 97b059730218 ("debug_uart: Adjust the declaration of
debug_uart_init()")
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
Reviewed-by: Chin Liang See <[email protected]>
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Follow commit 97b059730218 ("debug_uart: Adjust the declaration of
debug_uart_init()")
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
Reviewed-by: Chin Liang See <[email protected]>
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- Moved macro definitions to top
- Re-arrange header includes ascending order
- Remove unused header linux/compiler.h
- Remove the penultimate comma in of_match ids
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Replace numerical bit shift with BIT macro
in altera_uart
:%s/(1 << nr)/BIT(nr)/g
where nr = 0, 1, 2 .... 31
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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- Moved macro definitions to top
- Give spaces around the '>>' in ALTERA_JTAG_WSPACE()
- Re-arrange header includes ascending order
- Remove unused header linux/compiler.h
- Remove the penultimate comma in of_match ids
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Replace numerical bit shift with BIT macro
in altera_jtag_uart
:%s/(1 << nr)/BIT(nr)/g
where nr = 0, 1, 2 .... 31
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Update this driver to use driver model and change all users.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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Since we use device tree in SPL also, we can drop this code.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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Add support for the debug UART to assist with early debugging. Enable it
for Zybo as an example.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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Sometimes stdout-path contains a UART alias along with speed, etc. For
example:
stdout-path = "serial0:115200n8";
Add support for decoding this.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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Add driver model support for keystone serial driver.
Signed-off-by: Lokesh Vutla <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Both altera_jtag_serial_initialize() and
altera_serial_initialize() are no longer used after
they are converted to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Convert altera_uart to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Marek Vasut <[email protected]>
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Convert altera_jtag_uart to driver model.
Signed-off-by: Thomas Chou <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Adding compatibles for am335x, am437x and dra7 platforms.
Signed-off-by: Mugunthan V N <[email protected]>
Reviewed-by: Lokesh Vutla <[email protected]>
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found in dt
In some platforms like am437x, serial node is not populated with
clock-frequency node. So in that case have a default clock-clock
frequency.
Signed-off-by: Mugunthan V N <[email protected]>
Reviewed-by: Lokesh Vutla <[email protected]>
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It is useful to see a message from the debug UART early during boot so that
you know things are working. Add an option to enable this. The message will
be displayed as soon as debug_uart_init() is called.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Some boards need to set things up before the debug UART can be used. On
these boards a call to debug_uart_init() is insufficient. When this option
is enabled, the function board_debug_uart_init() will be called when
debug_uart_init() is called. You can put any code here that is needed to
set up the UART ready for use, such as set pin multiplexing or enable
clocks.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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We want to be able to add other common code to this function. So change the
driver's version to have an underscore before it, just like
_debug_uart_putc(). Define debug_uart_init() to call this version.
Update all drivers to this new method.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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It looks like this line was copy-pasted, but not modified.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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This arch does not seem to be supported / used at all in the current
U-Boot mainline source tree any more. So lets remove the core u8500 code
and code that was only referenced by this platform.
Please note that this patch also removes these config options:
- CONFIG_PL011_SERIAL_RLCR
- CONFIG_PL011_SERIAL_FLUSH_ON_INIT
As they only seem to be referenced by u8500 based boards. Without any
such board in the current code, these config option don't make sense
any more. Lets remove them as well.
If someone still wants to use this platform, then please send patches
to re-enable support by adding at least one board that references this
code.
Signed-off-by: Stefan Roese <[email protected]>
Cc: Mathieu Poirier <[email protected]>
Cc: John Rigby <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Albert Aribaud <[email protected]>
Reviewed-by: Masahiro Yamada <[email protected]>
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Add support for the Rockchip serial device using the ns16550 driver.
This uses driver model and device tree for both SPL and U-Boot proper.
Signed-off-by: Simon Glass <[email protected]>
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SANDBOX_SERIAL depends on SANDBOX, and SANDBOX selects DM.
So, "SANDBOX_SERIAL depends on DM" is redundant.
Likewise, UNIPHIER_SERIAL depends on ARCH_UNIPHIER, and
ARCH_UNIPHIER selects DM_SERIAL.
So, "UNIPHIER_SERIAL depends on DM_SERIAL" is redundant.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
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This is a convenient way for a driver to get the hardware address of a
device, when regmap or syscon are not being used. Change existing callers
to use it as an example to others.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Joe Hershberger <[email protected]>
Acked-by: Stephen Warren <[email protected]>
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Add SCIFA console interface for R-Car Gen2 SoCs.
SCIFA has different registers offsets and sizes then SCI. Hence it needs to
put it's macro definitions separately.
Signed-off-by: Vladimir Barinov <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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This driver is enabled only for UniPhier SoCs and ARCH_UNIPHIER now
selects OF_CONTROL and SPL_OF_CONTROL.
This driver no longer needs to support platform data configuration.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Cleaning up order of include files by sorting them alphabetically
keeping in mind to leave common.h on top.
Signed-off-by: Marcel Ziswiler <[email protected]>
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We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing
devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear
away the ugly logic in include/fdtdec.h:
#ifdef CONFIG_OF_CONTROL
# if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL)
# define OF_CONTROL 0
# else
# define OF_CONTROL 1
# endif
#else
# define OF_CONTROL 0
#endif
Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to
CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for
SPL.
Also, we no longer have to cancel CONFIG_OF_CONTROL in
include/config_uncmd_spl.h and scripts/Makefile.spl.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Linus Walleij <[email protected]>
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- Import various DT files for DRA7 / DR72x / dra72-evm from Linux Kernel
v4.1
- Add config file for this board, enable DM and DM_GPIO
Cc: Simon Glass <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The menuconfig for drivers are getting more and more cluttered
and unreadable because too many entries are displayed in a single
flat menu. Use hierarchic menu for each category.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
[trini: Update to apply again in a few places, drop USB hunk]
Signed-off-by: Tom Rini <[email protected]>
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Currently the serial code assumes that there is always at least one serial
port (and panics / crashes due to null pointer dereferences when there is
none).
This makes it impossible to use u-boot on boards where there is no (debug)
serial port, because e.g. all uart pins are muxed to another function.
This commit adds a CONFIG_REQUIRE_SERIAL_CONSOLE Kconfig option, which
defaults to y (preserving existing behavior), which can be set to n on
such boards to make them work.
This commit only implements this for CONFIG_DM_SERIAL=y configs, as allowing
running without a serial port for CONFIG_DM_SERIAL=n configs is non trivial,
and is not necessary at this moment.
Signed-off-by: Hans de Goede <[email protected]>
Acked-by: Simon Glass <[email protected]>
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As a debugging aid, allow UART3 to be used as a debug UART in SPL. This
is a precursor to proper UART support, which requires a substantial
refactor.
Signed-off-by: Simon Glass <[email protected]>
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Add a debug UART implementation for this serial driver. It does not set up
pinmux automatically - this must be done before calling debug_uart_init().
Signed-off-by: Simon Glass <[email protected]>
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The debug UART code needs to perform the same init as the normal UART
driver. In preparation for this, move the init code into two functions, one
for the basic init and one for setting the baud rate. This will make adding
debug UART support easier.
Signed-off-by: Simon Glass <[email protected]>
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Add a serial driver which makes use of EFI's console in/out service.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested on Intel Crown Bay and QEMU
Tested-by: Bin Meng <[email protected]>
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Move this config option to Kconfig and tidy up.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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In a final attempt to find a console UART this function uses the first
first available serial device. However the check for a valid device is
inverted.
This code is only executed when there is in fact no serial UART, but at
present it can fail to reach the panic_str() call in this case, and start
trying to use a non-existent UART.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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Since Rockchip requires 32-bit serial access, add this to the driver.
Refactor a little to make this easier.
Signed-off-by: Simon Glass <[email protected]>
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Added UART DCC support for armv8
Signed-off-by: Siva Durga Prasad Paladugu <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Move this over to Kconfig and tidy up.
Signed-off-by: Simon Glass <[email protected]>
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This feature should be deprecated for new boards, and significantly adds
to SPL code size. Drop it. Instead, we can use stdout-path in the /chosen
node.
Signed-off-by: Simon Glass <[email protected]>
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