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This driver works in "new" Data Mover UART mode, so
will be compatible with modern Qualcomm chips only.
Signed-off-by: Mateusz Kulikowski <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>
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For ARM32 architecture, CONFIG_DEBUG_LL is available for early
low-level debugging (and actually UniPhier 32bit SoCs use it), but
ARM64 architecture does not support it. Instead, CONFIG_DEBUG_UART
is available as an architecture-independent debug facility.
This commit supports it on all the UniPhier SoCs (including the new
ARMv8 SoCs), which is very useful for new SoC bringups.
Signed-off-by: Masahiro Yamada <[email protected]>
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Enabling this driver requires some DT changes.
Adding DCC to root or main bus:
dcc: dcc {
compatible = "arm,dcc";
u-boot,dm-pre-reloc;
};
Extend alias list to link DCC:
serial0 = &uart0;
serial1 = &uart1;
serial2 = &dcc;
Change stdout-path to point to dcc port.
stdout-path = "serial2:115200n8";
Also add support for debug uart to help with early debug.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This adds PIC32 UART controller support based on driver model.
Signed-off-by: Paul Thacker <[email protected]>
Signed-off-by: Purna Chandra Mandal <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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xilinx_uartlite has been ported to DM, this patch makes the
xilinx-ppc405-generic and the xilinx-ppc440-generic boards use the new
DM driver.
Signed-off-by: Ricardo Ribalda Delgado <[email protected]>
Acked-by: Stefan Roese <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Michal Simek <[email protected]>
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- Move config option out of board file.
- Remove uartlite address from config file
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Thomas Chou <[email protected]>
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Add support for debug console.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Thomas Chou <[email protected]>
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LPUART is seen on Freescale VF610 and QorIQ Layerscape devices.
Create a Kconfig option and move it to defconfig for all boards
that have this serial driver.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Stefan Agner <[email protected]>
Acked-by: Simon Glass <[email protected]>
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early debug output
This patch adds Kconfig entries to facilitate usage of pl01x as
a debug UART.
Signed-off-by: Sergey Temerkhanov <[email protected]>
Signed-off-by: Radha Mohan Chintakuntla <[email protected]>
Acked-by: Simon Glass <[email protected]>
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In very very space-constrained devices even the full UART driver is too
large. In this case the debug UART can still be used in some cases.
Add options to enable the UART driver in SPL and U-Boot proper. Enable both
options by default.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Thomas Chou <[email protected]>
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Remove this c&p error from s5p driver.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Move CONFIG_SYS_NS16550 to Kconfig, and run moveconfig.py.
Signed-off-by: Thomas Chou <[email protected]>
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Zap CONFIG_NS16550_SERIAL, as the unification of ns16550 drivers
is completed.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Unify serial_rockchip, and use the generic binding.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Tested-by: Ariel D'Alessandro <[email protected]>
Acked-by: Simon Glass <[email protected]>
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Unify serial_ppc, and use the generic binding.
Signed-off-by: Thomas Chou <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
[trini: Add TODO comment]
Signed-off-by: Tom Rini <[email protected]>
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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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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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Signed-off-by: Francois Retief <[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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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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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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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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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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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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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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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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Move this over to Kconfig and tidy up.
Signed-off-by: Simon Glass <[email protected]>
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The business for UniPhier Soc family has been transferred from
Panasonic Corporation to Socionext Inc.
Update the SoC select menu in Kconfig.
Signed-off-by: Masahiro Yamada <[email protected]>
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This UART permits different register spacing. To support the debug UART on
devices which have a spacing other than 1 byte, allow the shift value to
be specified.
Signed-off-by: Simon Glass <[email protected]>
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Add debug UART functions to permit ns16550 to provide an early debug UART.
Try to avoid using the stack so that this can be called from assembler before
a stack is set up (at least on ARM and PowerPC).
Signed-off-by: Simon Glass <[email protected]>
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This came up in a discussion on the mailing list here:
https://patchwork.ozlabs.org/patch/384613/
My concerns at the time were:
- it doesn't need to be written in assembler
- it doesn't need to be ARM-specific
This patch provides a possible alternative. It works by allowing any serial
driver to export one init function and provide a putc() function. These
can be used to output debug data before the real serial driver is available.
This implementation does not depend on driver model, and it is possible for
it to operate without a stack on some architectures (e.g. PowerPC, ARM). It
provides the same features as the ARM-specific debug.S but with more UART
and architecture support.
Signed-off-by: Simon Glass <[email protected]>
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Expand the help messages for each driver. Add missing Kconfig for I2C,
SPI flash and thermal.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Masahiro Yamada <[email protected]>
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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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This would be useful to start moving various config options.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>
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