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Add support to enable an early debug UART for debugging.
Signed-off-by: Wenyou Yang <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Andreas Bießmann <[email protected]>
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Add ATMEL_USART option to support to enable the Atmel usart driver
from Kconfig.
Signed-off-by: Wenyou Yang <[email protected]>
Reviewed-by: Andreas Bießmann <[email protected]>
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Signed-off-by: Tom Rini <[email protected]>
Conflicts:
common/Kconfig
configs/dms-ba16_defconfig
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Added kconfig for MXC_UART driver.
Cc: Simon Glass <[email protected]>
Cc: Fabio Estevam <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Peng Fan <[email protected]>
Cc: Matteo Lisi <[email protected]>
Cc: Michael Trimarchi <[email protected]>
Signed-off-by: Jagan Teki <[email protected]>
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This converts the following to Kconfig:
CONFIG_SYS_STDIO_DEREGISTER
This option should never be enabled in SPL, so use
CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) when checking the option.
Signed-off-by: Simon Glass <[email protected]>
[trini: Re-sync]
Signed-off-by: Tom Rini <[email protected]>
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This reverts commit 82f5279b0cd99a9163d34cfe926d0316d9dc0d37.
The build failure of k2*evm boards was fixed in a different way by
the previous commit. It is nasty to patch generic drivers around
with #ifdef CONFIG_CLK just for the KeyStone's matter.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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Support instatiation through device tree. Also parse the fsl,dte-mode
property to determine whether DTE mode shall be used.
Signed-off-by: Stefan Agner <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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When calling clk_get_by_index(), fall back to the legacy method of
getting the clock if -ENOENT is returned.
Signed-off-by: Alexandre Courbot <[email protected]>
Tested-by: Stephen Warren <[email protected]>
Acked-by: Thierry Reding <[email protected]>
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The Armada 3700's UART is a simple serial port. It has a 32 bytes
Tx FIFO and a 64 bytes Rx FIFO integrated. This patch adds support
for this UART including the DEBUG UART functions for very early
debug output.
Signed-off-by: Stefan Roese <[email protected]>
Cc: Nadav Haklai <[email protected]>
Cc: Kostya Porotchkin <[email protected]>
Cc: Wilson Ding <[email protected]>
Cc: Victor Gu <[email protected]>
Cc: Hua Jing <[email protected]>
Cc: Terry Zhou <[email protected]>
Cc: Hanna Hawa <[email protected]>
Cc: Haim Boot <[email protected]>
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Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content. (both just wrap <asm-generic/errno.h>)
Replace all include directives for <asm/errno.h> with <linux/errno.h>.
Signed-off-by: Masahiro Yamada <[email protected]>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <[email protected]>
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We cannot call on the CONFIG_CLK based clk_get_rate function unless
CONFIG_CLK is set.
Signed-off-by: Tom Rini <[email protected]>
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Previously ns16550 compatible UARTs probed via device tree have needed
their device tree nodes to contain a clock-frequency property. An
alternative to this commonly used with Linux is to reference a clock via
a phandle. This patch allows U-Boot to support that, retrieving the
clock frequency by probing the appropriate clock device.
For example, a system might choose to provide the UART base clock as a
reference to a clock common to multiple devices:
sys_clk: clock {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <10000000>;
};
uart0: uart@10000000 {
compatible = "ns16550a";
reg = <0x10000000 0x1000>;
clocks = <&sys_clk>;
};
uart1: uart@10000000 {
compatible = "ns16550a";
reg = <0x10001000 0x1000>;
clocks = <&sys_clk>;
};
This removes the need for the frequency information to be duplicated in
multiple nodes and allows the device tree to be more descriptive of the
system.
Signed-off-by: Paul Burton <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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On the raspberry pi, you can disable the serial port to gain dynamic frequency
scaling which can get handy at times.
However, in such a configuration the serial controller gets its rx queue filled
up with zero bytes which then happily get transmitted on to whoever calls
getc() today.
This patch adds detection logic for that case by checking whether the RX pin is
mapped to GPIO15 and disables the mini uart if it is not mapped properly.
That way we can leave the driver enabled in the tree and can determine during
runtime whether serial is usable or not, having a single binary that allows for
uart and non-uart operation.
Signed-off-by: Alexander Graf <[email protected]>
Acked-by: Stephen Warren <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This is very likely to be necessary for normal use cases.
Set its default to 'y' for shorter defconfig files.
Signed-off-by: Masahiro Yamada <[email protected]>
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[trini: Drop CMD_BOOTI as it's now on by default on ARM64]
Signed-off-by: Tom Rini <[email protected]>
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BLANCHE is development board based on R-Car V2H SoC (R8A7792)
This commit supports the following periherals:
- SCIF, Ethernet, QSPI, MMC
Signed-off-by: Masakazu Mochizuki <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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This can be used in the same way as other R-CAR serial setting.
Signed-off-by: Hiroyuki Yokoyama <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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This does not have much impact on behavior, but makes code look more
more like Linux. The use of devm_ioremap() often helps to delete
.remove callbacks entirely.
Signed-off-by: Masahiro Yamada <[email protected]>
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Read information about clock frequency from DT.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Moritz Fischer <[email protected]>
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Commit 83fd908f28c ("dm: imx: serial: Support DTE mode when using driver
model") breaks the serial output for the imx boards that do not use
the serial driver model.
The reason for the breakage is that it's setting UFCR_DCEDTE
unconditionally for the non-dm case.
So keep the original behavior by removing UFCR_DCEDTE setting in the
non-dm case.
Tested on mx7sabresd and mx6wandboard.
Signed-off-by: Breno Lima <[email protected]>
Acked-by: Stefan Agner <[email protected]>
Reviewed-by: Fabio Estevam <[email protected]>
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The MXC UART IP can be run in DTE or DCE mode. This depends on the
board wiring and the pinmux used and hence is board specific. This
extends platform data with a new field to choose wheather DTE
mode shall be used.
Signed-off-by: Stefan Agner <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add a driver that works with of-platdata. It sets up the platform data and
calls the standard ns16550 driver.
Signed-off-by: Simon Glass <[email protected]>
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With of-platdata this driver cannot know the format of the of-platdata
struct, so we cannot use generic code for accessing the of-platdata. Each
SoC that uses this driver will need to set up ns16550's platdata for it.
So don't compile in the generic code.
Signed-off-by: Simon Glass <[email protected]>
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When this feature is enabled, we cannot access the device tree to find out
which serial device to use. Just use the first serial driver we find.
Signed-off-by: Simon Glass <[email protected]>
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SPL does not support an LCD display so there is no need to sync the video
when there is serial output.
Signed-off-by: Simon Glass <[email protected]>
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This patch adds 200MHz clock configuration for stm32f746 discovery board.
This patch is based on STM32F4 and emcraft's[1].
[1]: https://github.com/EmcraftSystems/u-boot
Signed-off-by: Toshifumi NISHINAGA <[email protected]>
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Add support for standard type SCI (without FIFO) port.
Signed-off-by: Yoshinori Sato <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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Add Device Tree bindings.
Signed-off-by: Yoshinori Sato <[email protected]>
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
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The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
provider now implements a single set of clocks. This provides a simpler
conceptual interface to clients, and better aligns with device tree
clock bindings.
* Clocks are now identified with a single "struct clk", rather than
requiring clients to store the clock provider device and clock identity
values separately. For simple clock consumers, this isolates clients
from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
clk-uclass.h contains the provider API. This aligns with the recently
added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
can customize these operations if needed. This also aligns with the
recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.
Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.
test/py passes for sandbox (which invokes the dm clk test amongst
others).
Signed-off-by: Stephen Warren <[email protected]>
Acked-by: Simon Glass <[email protected]>
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The Linflex module is integrated on some NXP automotive SoCs part of the former
Freescale portfolio, like S32V234, an SoC for Advanced Driver Assistance
Systems.
Original-signed-off-by: Stoica Cosmin-Stefan <[email protected]>
Original-signed-off-by: Chircu Bogdan <[email protected]>
Original-signed-off-by: Depons Eric <[email protected]>
Original-signed-off-by: Eddy Petrișor <[email protected]>
Signed-off-by: Eddy Petrișor <[email protected]>
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Add device tree support.
Signed-off-by: Wenyou Yang <[email protected]>
Reviewed-by: Andreas Bießmann <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Signed-off-by: Tom Rini <[email protected]>
Conflicts:
configs/peach-pi_defconfig
configs/peach-pit_defconfig
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The CONFIG_OMAP1510 is no longer defined, so remove this dead code.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Simon Glass <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Nishanth Menon <[email protected]>
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The ns16550 driver needs serial_in_shift() and serial_out_shift()
when compiled in debug UART mode, so shift the DM_SERIAL check a
little to make these functions available.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This adds platform code for the Amlogic Meson GXBaby (S905) SoC and a
board definition for ODROID-C2. This initial submission only supports
UART and Ethernet (through the existing Designware driver). DTS files
are the ones submitted to Linux arm-soc for 4.7 [1].
[1] https://patchwork.ozlabs.org/patch/603583/
Signed-off-by: Beniamino Galvani <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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If the UART is to be accessed using I/O port accessors (inb & outb) then
using map_physmem doesn't make sense, since it operates in a different
memory space. Remove the call to map_physmem when
CONFIG_SYS_NS16550_PORT_MAPPED is defined, allowing I/O port addresses
to not be mangled by the incorrect mapping.
Signed-off-by: Paul Burton <[email protected]>
Signed-off-by: Daniel Schwierzeck <[email protected]>
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On Exynos platforms that support clock driver API, allow the driver to
use clock api get the SCLK clock rate.
Cc: Minkyu Kang <[email protected]>
Signed-off-by: Thomas Abraham <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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The port id, if not specified in the device node, can be obtained from
the alias of the device node listed in the aliases node.
Cc: Minkyu Kang <[email protected]>
Signed-off-by: Thomas Abraham <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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The correct pinctrl is handled automatically so we don't need to do it in
the driver.
Signed-off-by: Wills Wang <[email protected]>
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This patch add support for ar933x serial.
Signed-off-by: Wills Wang <[email protected]>
Reviewed-by: Thomas Chou <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Boards can now use DM serial driver, or still legacy mcf uart
driver version.
Signed-off-by: Angelo Dureghello <[email protected]>
Acked-by: Simon Glass <[email protected]>
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dm_serial_ops.pending should return the number of characters, not just a
valid C Boolean integer value. The existing code does already does this,
but only as an accident since BCM283X_MU_LSR_RX_READY happens to be
BIT(0). Enhance the code to be more explicit about the values it returns.
Suggested-by: Simon Glass <[email protected]>
Signed-off-by: Stephen Warren <[email protected]>
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ISS is obsolete now and nSIM is used for simulation instead.
In its turn nSIM properly handles baud-rate settings so get rid
of now useless check.
Signed-off-by: Alexey Brodkin <[email protected]>
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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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Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties. (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)
Signed-off-by: Masahiro Yamada <[email protected]>
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