Commit graph

862 commits

Author SHA1 Message Date
Patrice Chotard
7b3b74d321 serial: serial_stm32: Enable overrun
Enable uart overrun feature which allows to benefits of uart
FIFO usage.

Previously overrun management was disabled, this has to effect
to bypassed the uart FIFO usage even if FIFO was enabled.
In particular configuration, for example when video console is
enabled, copy/pasting a long command line in console results in
corruption. This is due to the fact that a lot of time is consumed
in flushing the cache during frame buffer update, so uart chars are
not read fast enough.

By using uart FIFO and managing overrun, long command line can by
copy/paste in console without being corrupted.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-04-28 18:32:24 -04:00
Tuomas Tynkkynen
fac379e1ea serial: Migrate CONFIG_FSL_LINFLEXUART to Kconfig
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-04-28 10:42:35 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Patrice Chotard
e376040f29 serial: Remove duplicated line in Makefile
The line "-obj-$(CONFIG_STM32_SERIAL) += serial_stm32.o"
is found twice in Makefile.

Fixes: ae74de0dfd ("serial: stm32: Rename serial_stm32x7.c to serial_stm32.c"

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-16 18:45:35 -04:00
Marek Vasut
451e22fa33 serial: sh: Add SCIFA0 address entry
Add the SCIFA0 address entry so it can be used in TPL if needed
due to size restrictions.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-13 23:41:44 +02:00
Marek Vasut
a9d7990dc4 serial: Fix Makefile during SPL and TPL build
This patch fixes a situation where CONFIG_DM_SERIAL is enabled for
regular U-Boot and SPL, but not for TPL. In that case, the build
will try to include serial-uclass into the TPL nonetheless, because
CONFIG_DM_SERIAL is set.

The solution is to check if the build is for SPL or TPL and in that
case, check if CONFIG_$(SPL_TPL_)DM_SERIAL is also set. Only in that
case, include serial-uclass.c . If the build is for regular U-Boot,
CONFIG_BUILD is not set, so only check if CONFIG_DM_SERIAL is set
and if so, include serial-uclass.c

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2018-04-11 13:22:05 -04:00
Neil Armstrong
e1e1e85203 serial: meson: Update compatible with new Linux bindings
The Amlogic Meson SoCs serial bindings were not written when serial
support was pushed into Linux and U-Boot.
A clean bindings document has been merged into Linux tree to correctly
handle the multiple clocks feeding the serial peripheral.
This update the U-Boot serial_meson driver with the new compatible
string for Amlogic Meson GX Socs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-10 11:52:16 -04:00
Christophe Leroy
3f151eb6cf drivers: serial: remove nonexisting initialisation functions
This patch removes call of serial initialisation functions that
are not implemented anymore.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06 17:04:33 -04:00
Christophe Leroy
18f8d4c60d powercp: mpc8xx: move commproc.h
include/commproc.h is dedicated to the 8xx, rename it cpm_8xx.h and
move it into arch/powerpc/include/asm

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06 16:30:37 -04:00
Christophe Leroy
ee1e600c13 powerpc: mpc8xx: Change CONFIG_8xx to CONFIG_MPC8xx
CONFIG_8xx doesn't mean much outside of arch/powerpc/
This patch renames it CONFIG_MPC8xx just like CONFIG_MPC85xx etc ...
It also renames 8xx_immap.h to immap_8xx.h to be consistent with
other file names.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06 16:30:37 -04:00
Patrick Delaunay
2514c2d0e6 arm: stm32: add new architecture for STM32MP family
- add new arch stm32mp for STM32 MPU/Soc based on Cortex A
- support for stm32mp157 SOC
- SPL is used as first boot stage loader
- using driver model for all the drivers, even in SPL
- all security feature are deactivated (ETZC and TZC)
- reused STM32 MCU drivers when it is possible

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:21 -04:00
Tom Rini
6f6b7cfa89 Convert all of CONFIG_CONS_INDEX to Kconfig
This converts the following to Kconfig:
   CONFIG_CONS_INDEX

We have existing entries for this option in a number of places, with
different guards on them.  They're also sometimes used for things not
directly inside of the serial driver.  First, introduce a new symbol to
guard the use of CONFIG_CONS_INDEX, so that in the case where we don't
need this for the serial driver, but for some other use, we can still do
it.  Next, consolidate all of these into the single entry in
drivers/serial/Kconfig.  Finally, introduce CONS_INDEX_[023456] so that
we can imply a correct value here to make the defconfig side of this
smaller.

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Rework a lot of the logic here, such that I took authorship from
Adam, but kept his S-o-B line]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-03-16 10:28:52 -04:00
Alexander Graf
c9bf43dd9d bcm283x_pl011: Flush RX queue after setting baud rate
After the UART was initialized, we may still have bogus data in the
RX queue if it was enabled with incorrect pin muxing before.

So let's flush the RX queue whenever we initialize baud rates.

This fixes a regression with the dynamic pinmuxing code when enable_uart=1
is not set in config.txt on Raspberry Pis that use pl011 for serial.

Fixes: caf2233b28 ("bcm283x: Add pinctrl driver")
Reported-by: Göran Lundberg <goran@lundberg.email>
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-03-09 12:31:04 -05:00
Alexander Graf
293b9814d7 serial_bcm283x_mu: Flush RX queue after setting baud rate
After the UART was initialized, we may still have bogus data in the
RX queue if it was enabled with incorrect pin muxing before.

So let's flush the RX queue whenever we initialize baud rates.

This fixes a regression with the dynamic pinmuxing code when enable_uart=1
is not set in config.txt.

Fixes: caf2233b28 ("bcm283x: Add pinctrl driver")
Reported-by: Göran Lundberg <goran@lundberg.email>
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-03-09 12:26:47 -05:00
Bernhard Messerklinger
78b7d37b1b ns16550: Fix mem mapped endian check
Do a explicit check for CONFIG_SYS_BIG_ENDIAN and
CONFIG_SYS_LITTLE_ENDIAN to avoid errors on platforms where both
are undefined (x86).

Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-02-23 10:40:50 -05:00
Marek Vasut
5c44ddcb13 serial: Replace CONFIG_ with CONFIG_IS_ENABLED
Cosmetic change, replace CONFIG_* with CONFIG_IS_ENABLED(*) .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-02-16 16:43:10 +01:00
Alexander Graf
ae5326a6b3 serial: Make full device search optional
Commit 608b0c4ad4 ("serial: Use next serial device if probing fails")
added code to search for more serial devices if the default one was not
probed correctly.

Unfortunately, that breaks omap3_evm. So while investigating why that is
the case, let's disable the full search for everyone but bcm283x where it
is needed.

Fixes: 608b0c4ad4 ("serial: Use next serial device if probing fails")
Reported-by: Derald D. Woods <woods.technical@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-29 08:18:02 -05:00
Alexander Graf
6001985f92 bcm2835_pl011_serial: Add BCM2835 specific serial driver
On bcm2835 we need to ensure we only access serial devices that are
muxed to the serial output pins of the pin header. To achieve this
for the pl011 device, add a bcm2835 specific pl011 wrapper device
that does this check but otherwise behaves like a pl011 device.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:36 -05:00
Alexander Graf
fa4875942a bcm2835_mu_serial: Convert to Kconfig
Setting config options using headers is deprecated. This patch converts
the BCM2835 Mini-UART to Kconfig.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:36 -05:00
Alexander Graf
cf2c7784bd pl01x: Convert CONFIG_PL01X_SERIAL to Kconfig
We want to use Kconfig logic to depend on whether pl01x devices
are built in, so let's convert their inclusion selection to Kconfig.

This round goes to pl01x.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:35 -05:00
Alexander Graf
d10fc50f78 pl011: Convert CONFIG_PL011_SERIAL to Kconfig
We want to use Kconfig logic to depend on whether pl01x devices
are built in, so let's convert their inclusion selection to Kconfig.

This round goes to pl011.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:35 -05:00
Alexander Graf
884f901368 pl010: Convert CONFIG_PL010_SERIAL to Kconfig
We want to use Kconfig logic to depend on whether pl01x devices
are built in, so let's convert their inclusion selection to Kconfig.

This round goes to pl010.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:35 -05:00
Alexander Graf
b31116308c pl01x: Convert to dev_read
The fdtdec API is deprecated, convert the pl010 and pl011 devices to
use the dev_read API instead.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:34 -05:00
Alexander Graf
9dfeffe2f9 serial_bcm283x_mu: Fail loading if not muxed
The bcm283x mini-uart is only really usable as U-Boot serial output
when it is muxed to the UART pins of the RPi pin header.

So fail probing in case it is not muxed correctly, as in that case
firmware did not initialize it properly either.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:34 -05:00
Alexander Graf
bceab8d569 serial_bcm283x_mu: Always skip init
The serial initialization doesn't always quite work for me, so let's
always skip it for now. We know that firmware on the RPi initializes
us properly already.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:34 -05:00
Alexander Graf
80d5001c30 serial_bcm283x_mu: Convert to dev_read
The fdtdec API got deprecated in favor of dev_read calls.
Use those instead.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:34 -05:00
Alexander Graf
fc8523a147 serial: bcm283x_mu: Remove support for post-init disabling
We are switching to a model where a serial device doesn't even get probed when
it's not muxed properly, so we don't need device specific disabling
functionality anymore.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28 12:27:33 -05:00
Alexander Graf
608b0c4ad4 serial: Use next serial device if probing fails
Currently our serial device search chokes on the fact that the serial
probe function could fail. If it does, instead of searching for the next
usable serial device, it just quits.

This patch changes the fallback logic so that even when a serial device
was not probed correctly, we just try the next ones until we find one that
works.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-28 12:27:33 -05:00
Mario Six
4dbf9bed18 serial: ns16550: Fix style violation
Clarify the computation precedence in two ternary operator
constructions.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-01-28 09:36:28 -05:00
Tom Rini
9c486e7cb0 Merge branch 'rmobile-mx' of git://git.denx.de/u-boot-sh 2018-01-27 18:25:00 -05:00
Tom Rini
1d12a7c8cd Merge git://git.denx.de/u-boot-spi 2018-01-26 07:46:34 -05:00
Chris Brandt
8591ac8b16 serial: sh: Add support for R7S72100 (RZ/A1)
Add support for RZ/A1 series SoCs.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
2018-01-24 23:27:21 +01:00
Marek Vasut
a6e25b2e12 serial: sh: Unify CONFIG_R8A779[01234] as CONFIG_RCAR_GEN2
Use the common RCAR_GEN2 config option instead of enumerating
each SoC and having a lengthy ifdef clause. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-01-24 23:27:21 +01:00
Marek Vasut
c493756ab4 serial: sh: Replace fdtdec_get_addr() with devfdt_get_addr()
Replace fdtdec_get_addr() with devfdt_get_addr() as the later one is
the current recommended practice.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-01-24 23:27:21 +01:00
Álvaro Fernández Rojas
48263504c8 wait_bit: use wait_for_bit_le32 and remove wait_for_bit
wait_for_bit callers use the 32 bit LE version

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-01-24 12:03:43 +05:30
Patrice Chotard
ae74de0dfd serial: stm32: Rename serial_stm32x7.c to serial_stm32.c
Now this driver is used across stm32f4, stm32f7 and stm32h7
SoCs family, give it a generic name.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2018-01-19 15:49:32 -05:00
Sriram Dash
a2bbfc5480 serial: lpuart: Proper device identification
Identify and distinguish between platform device type of MX7ULP
and LS1021A.

This is a fix to commit 7edf5c45("serial: lpuart: add i.MX7ULP
support").

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-01-15 12:44:09 -08:00
Patrice Chotard
2d18d72858 board: stm32f429-disco: switch to DM STM32 serial driver
Remove serial_stm32.c driver and uart init from board file,
use available DM serial_stm32x7.c driver compatible for
STM32F4/F7 and H7 SoCs.

The serial_stm32x7.c driver will be renamed later with a more
generic name as it's shared with all STM32 Socs.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-01-10 08:05:46 -05:00
Marek Vasut
167ee838df serial: sh: Unify R8A7795 and R8A7796 as Gen3
Unify the CONFIG_R8A7795 and CONFIG_R8A7796 as CONFIG_RCAR_GEN3
so that every time we add a new SoC, we won't have to add more
stuff to this list.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-30 02:32:34 +01:00
Michal Simek
809704eb4f arm: zynq: Move ZYNQ_SERIAL to Kconfig
Move cadence/zynq serial driver via Kconfig

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-11-28 16:08:45 +01:00
Wilson Lee
b12907f279 serial: nulldev: Implement "pending" function to fix tstc return "true"
In U-boot, serial_tstc was use to determine is there have a character in
serial console that pending for read. If there is no "pending" function
implemented in serial driver, the serial-uclass will return "true(1)"
to indicate there have a character pending to read.

Thus, read a character from nulldev serial will result in continuous
getting -EAGAIN return which might lead system to hang.

This commit is to fix a bug in nulldev serial which implement "pending"
function in nulldev serial to always indicate there is no character in
console that pending for read.

Signed-off-by: Wilson Lee <wilson.lee@ni.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Keng Soon Cheah <keng.soon.cheah@ni.com>
Cc: Chen Yee Chew <chen.yee.chew@ni.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
2017-11-17 07:44:13 -05:00
Patrice Chotard
3bc599c956 stm32: fix STMicroelectronics copyright
Uniformize STMicroelectronics copyrights headers for STM32
related code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-11-06 09:51:01 -05:00
Patrice Chotard
fb48bc448c sti: fix STMicroelectronics copyright
Uniformize all STMicroelectronics copyrights headers for STi
related code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-11-06 09:51:01 -05:00
Heinrich Schuchardt
c409336dac usbtty: fix typos
Fix typos in USB tty driver.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2017-10-16 09:42:51 -04:00
Tom Rini
2ee87b0c1a Merge branch 'rmobile' of git://git.denx.de/u-boot-sh 2017-10-10 20:14:38 -04:00
Patrice Chotard
9a212d7f55 serial: stm32x7: remove useless CONFIG_CLK and OF_CONTROL flag
This driver is currently used by STM32F7 and STM32H7 SoCs.
As CONFIG_CLK and OF_CONTROL flags are set by default for these
2 SoCs, this flag becomes useless in this driver, so remove it.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-08 16:19:56 -04:00
Patrice Chotard
6c30f15bf1 serial: stm32x7: add STM32F4 support
stm32f4 doesn't support FIFO and OVERRUN feature.
The enable bit is not at the same location in CR1
register than for STM32F7 and STM32H7.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-08 16:19:56 -04:00
Patrice Chotard
2a7ecc5360 serial: stm32x7: add fifo support for STM32H7
Add fifo mode support for rx and tx.
As only STM32H7 supports this feature, add has_fifo flag
to uart configuration to use fifo only when possible.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-08 16:19:56 -04:00
Patrice Chotard
60a996bacb serial: stm32x7: prepare the ground to STM32F4 support
STM32F4 serial IP is similar to F7 and H7, but registers
are not located at the same offset and some feature are
only supported by F7 and H7 version.

Registers offset must be added for each version and also
some flags indicated the supported feature.

Update registers name to match with datasheet (sr to isr,
rx_dr to rdr and tx_dr to tdr) and remove unused regs
(cr2, gtpr, rtor, and rqr).

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-10-08 16:19:56 -04:00
Patrice Chotard
75d5853ffc serial: stm32x7: remove stm32f7-usart and stm32h7-usart compatible
This patch remove the extra compatibility string "st,stm32h7-usart"
and "st,stm32f7-usart" to avoid confusion, save some time & space.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-10-08 16:19:56 -04:00
Patrice Chotard
2a52a9527a serial: stm32x7: cleanup code
Use BIT() macro and GENMASK() macro

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-10-08 16:19:56 -04:00
Marek Vasut
791c174d58 serial: sh: Enable clock if available
If the clock framework provides the driver with valid clock,
enable them, otherwise the SCIF might not work if the clock
are not enabled prior to the driver probe.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-09-24 14:12:07 +09:00
Patrice Chotard
776b2ddbfa serial: stm32x7: add STM32H7 support
STM32F7 and STM32H7 shares the same UART block, add
STM32H7 compatible string.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-22 07:40:01 -04:00
Keng Soon Cheah
cac73f20ac serial: nulldev: Add nulldev serial driver
Some device the serial console's initialization cannot run early during
the boot process. Hence, nulldev serial device is helpful on that
situation.

For example, if the serial module was implemented in FPGA. Serial
initialization is prohibited to run until the FPGA was programmed.

This commit is to adding nulldev serial driver. This will allows the
default console to be specified as a nulldev.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Keng Soon Cheah <keng.soon.cheah@ni.com>
Cc: Chen Yee Chew <chen.yee.chew@ni.com>
2017-09-13 09:24:24 -04:00
Stefan Roese
3ca7a06afb serial: serial-uclass: Add generic serial RX buffer support
Pasting longer lines into the U-Boot console prompt sometimes leads to
characters missing. One problem here is the small 16-byte FIFO of the
legacy NS16550 UART, e.g. on x86 platforms.

This patch now introduces a Kconfig option to enable RX buffer support
for all DM based serial drivers. With this option enabled, I was
able paste really long lines into the U-Boot console, without any
characters missing.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2017-08-24 11:00:47 +08:00
Stefan Roese
7fded0ce0f Revert "serial: ns16550: Add RX interrupt buffer support"
This reverts commit 6822cf3ec7.

As Bin Meng has tested and pointed out, we don't need the RX interrupt
for the RX buffer support at all. Just reading all available characters
into a buffer is sufficient to solve the problem with the dropped
characters upon long lines pasted into the U-Boot prompt. Since this
RX buffer support can be implemented in a generic way, without any
device specifica (e.g. for the ns16550), I'll post a new patch with
a new serial RX buffer support for DM, which all DM based serial
drivers can use.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-08-24 11:00:47 +08:00
Simon Glass
00caae6d47 env: Rename getenv/_f() to env_get()
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.

Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:30:24 -04:00
Marek Vasut
8171499df9 serial: sh: Use the clock framework to obtain clock config
Since we now have clock driver on the RCar Gen3 , obtain the clock
configuration using the clock framework functions. In case this
fails, fall back to the original code for pulling the clock config
directly out of OF.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-08-03 04:26:25 +09:00
Marek Vasut
03a38a3972 serial: sh: Convert to Kconfig
Convert the SH Serial to Kconfig using tools/moveconfig.py tool
and a bit of manual adjustment to cater for failed conversions.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-08-03 04:26:24 +09:00
Simon Glass
7b3c4c3a53 dm: console: Check for serial devices properly
With driver model the serial device is often not called "serial". Mark
driver-model stdio devices so that they can be detected and we can look up
the uclass. This is a more reliable way of finding out whether the console
is connected to a serial device or not.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-07-31 12:21:40 -04:00
Patrice Chotard
84e9dcc120 serial: stm32x7: Convert CONFIG_STM32X7_SERIAL to Kconfig
Add CONFIG_STM32X7_SERIAL as a Kconfig option.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-07-31 11:22:54 -04:00
Andy Yan
f1896c45cb spl: make SPL and normal u-boot stage use independent SYS_MALLOC_F_LEN
Some platforms have very limited SRAM to run SPL code, so there may
not be the same amount space for a malloc pool before relocation in
the SPL stage as the normal U-Boot stage.

Make SPL and (the full) U-Boot stage use independent SYS_MALLOC_F_LEN,
so the size of pre-relocation malloc pool can be configured memory
space independently.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[fixed up commit-message:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-27 14:59:03 +02:00
Patrice Chotard
27265cee76 serial: stm32x7: add clk_get_rate() support
Replace proprietary clock_get() by clk_get_rate()
The stm32x7 serial driver is now "generic" and can be used
by other STM32 SoCs.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
2017-07-26 11:28:08 -04:00
Patrice Chotard
122b2d4763 serial: stm32x7: migrate serial struct to driver
This allow to remove include/dm/platform_data/serial_stm32x7.h
which was included in the past by stm32x7 driver and by
stm32f746-disco.c board file.
Since patch 42bf5e7c27 "serial: stm32f7: add device tree support"
this file is no more needed in board file.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
2017-07-26 11:26:54 -04:00
Stefan Roese
6822cf3ec7 serial: ns16550: Add RX interrupt buffer support
Pasting longer lines into the U-Boot console prompt sometimes leads to
characters missing. One problem here is the small 16-byte FIFO of the
legacy NS16550 UART, e.g. on x86 platforms.

This patch now introduces a Kconfig option to enable RX interrupt
buffer support for NS16550 style UARTs. With this option enabled, I was
able paste really long lines into the U-Boot console, without any
characters missing.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
[trini: Guard ns16550_serial_remove with
CONFIG_IS_ENABLED(SERIAL_PRESENT) to match struct assignment]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-07-23 17:04:46 -04:00
Christophe Leroy
72281c5c46 powerpc: Remove 8260 remainders
commit 2eb48ff7a2 ("powerpc, 8260: remove support for mpc8260")
removed support for 8260 CPU.

This patch remove some remainders.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-23 09:24:47 -04:00
Jagan Teki
61366b71a8 serial: mxc: Add debug uart support
Add support for the debug UART to assist with early debugging.
Enable it for i.CoreM6 as an example.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:44:22 +02:00
Jagan Teki
52c14cabda serial: mxc: Code cleanup
- Remove space between #define to macro
- Add tab between macro and value

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:42:33 +02:00
Jagan Teki
45d97511a9 serial: mxc: Move common baud gen into _mxc_serial_setbrg
Move the common baud generation code into _mxc_serial_setbrg
so-that dm and non-dm can call this func.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:42:33 +02:00
Jagan Teki
97548d5947 serial: mxc: Move common init into _mxc_serial_init
Move the common initialization code into _mxc_serial_init
so-that dm and non-dm can call this func.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:42:33 +02:00
Jagan Teki
57d3e98f57 serial: mxc: Move cr1 and cr2 write to mxc_serial_setbrg
Control reg write should be part of setbrg for better
buadrate generation, so move cr1 and cr2 write to
mxc_serial_setbrg

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:42:33 +02:00
Jagan Teki
62af03ee97 serial: mxc: Use RFDIV in dm-code
Use RFDIV in dm-code instead of numeric value, so-that
it can be common for dm and non-dm.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:42:33 +02:00
Jagan Teki
ffa8bcd7f1 serial: mxc: Add common mxc_uart reg space
This patch will add common reg space for non-dm and
dm code and non-dm reg space can be accessed using
mxc_base.

This will
- get rid of __REG volatile assignments
- Make common reg_space by removing unneeded macros

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-12 09:42:33 +02:00
Tom Rini
8d3a25685e Merge git://git.denx.de/u-boot-dm 2017-07-11 20:28:46 -04:00
Simon Glass
f93472a022 dm: serial: Add livetree support
Add support for a live device tree to the core serial uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
2017-07-11 10:08:20 -06:00
Simon Glass
d09608534c dm: serial: Separate out the core serial-device finding code
This function is quite long. Move the core code into a separate function
in preparation for adding livetree support.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
2017-07-11 10:08:20 -06:00
Simon Glass
db9f8f6ad5 dm: serial: ns16550: Convert to livetree
Update this driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
2017-07-11 10:08:20 -06:00
Philipp Tomsich
3d40479f00 rockchip: ns16550: dm: convert fdt_get to dev_read
With the new dev_read functions available, we can convert the rockchip
architecture-specific drivers and common drivers used by these devices
over to the dev_read family of calls.

This covers the serial driver (ns16550 and compatible) used for the
Rockchip devices.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-11 12:13:44 +02:00
Christophe Leroy
dd7ff4721a powerpc, 8xx: move Serial driver to drivers/serial/
At the same time, move to Kconfig

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-08 15:56:04 -04:00
Masahiro Yamada
49ddcf3e0e serial: make serial_stub_* to static functions
Add missing static to serial_stub_puts().

Unexport serial_stub_{getc,tstc} because they are used locally.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-07-06 13:09:35 -04:00
Heiko Schocher
0424990c1f serial, kconfig: fix menutext
fix menutext for the options SPL_DM_SERIAL and TPL_DM_SERIAL.
Both have the same text as DM_SERIAL, which is
confusing.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
2017-06-23 10:38:09 -04:00
Heiko Schocher
b9f7d88174 powerpc, 5xx: remove some "5xx" remains
we removed 5xx support. So delete some forgotten remains.

Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16 10:14:56 -04:00
Heiko Schocher
9057df88e1 powerpc, 82xx: remove some missed mpc82xx remains
we removed 82xx support. Missed some 82xx remains,
remove them now.

Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16 10:14:56 -04:00
Heiko Schocher
064b55cfcb powerpc, 5xxx, 512x: remove support for mpc5xxx and mpc512x
There was for long time no activity in the mpx5xxx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in mpc5xxx,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16 10:14:55 -04:00
Patrice Chotard
1afcf9cb25 serial: stm32x7: simplify baud rate register calculation
Simplify baud rate register formula and use the oversampling
uart feature.
This code is aligned with what is implemented in kernel driver
drivers/tty/serial/stm32-usart.c since kernel v4.9.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Christophe KERELLO <christophe.kerello@st.com>
Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
2017-06-12 08:38:38 -04:00
Patrice Chotard
1113ad49dc serial: stm32x7: align compatible with kernel one
stm32x7.c driver is dedicated for STM32F7.
In kernel, "st,stm32-usart" and "st,stm32-uart" compatible
strings are dedicated for STM32F4.

To keep U-boot and kernel aligned, replace the serial compatible
string from "st,stm32-usart", "st,stm32-uart" to
"st,stm32f7-usart", "st,stm32f7-uart" specific for STM32F7.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Christophe KERELLO <christophe.kerello@st.com>
Reviewed-by: Patrick DELAUNAY <patrick.delaunay@st.com>
Acked-by: Vikas MANOCHA <vikas.manocha@st.com>
2017-06-12 08:38:13 -04:00
Vikas Manocha
6c0c3ce8aa serial: stm32f7: disable overrun
With overrun enabled, serial port console freezes & stops receiving data with
overun error if we keep sending data.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-06-09 11:23:59 -04:00
Simon Glass
f5b5719cdf dm: core: Update lists_bind_fdt() to use ofnode
Adjust this function to use an ofnode instead of an offset, so it can be
used with livetree. This involves updating all callers.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:08 -06:00
Simon Glass
da409ccc4a dm: core: Replace of_offset with accessor (part 2)
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:04 -06:00
Simon Glass
4af0d7e870 dm: Fix up inclusion of common.h
It is good practice to include common.h as the first header. This ensures
that required features like the DECLARE_GLOBAL_DATA_PTR macro,
configuration options and common types are available.

Fix up some files which currently don't do this. This is necessary because
driver model will soon start using global data and configuration in the
dm/read.h header file, included via dm.h. The gd->fdt_blob value will be
used to access the device tree and CONFIG options will be used to
determine whether to support inline functions in the header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:03 -06:00
Simon Glass
a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00
Simon Glass
9d922450aa dm: Use dm.h header when driver mode is used
This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 06:57:52 -06:00
Álvaro Fernández Rojas
24f85482c9 dm: serial: bcm6345: fix baud rate clock calculation
It's currently bugged and doesn't work for even cases.
Right shift bits instead of dividing and fix even cases.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2017-05-31 14:55:20 +02:00
Álvaro Fernández Rojas
6b7185f3ee dm: serial: bcm6345: fix uart stop bits
I missed this when I added support for BMIPS UART driver and it's needed to
achieve a real 115200 8N1 setup.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2017-05-31 14:49:55 +02:00
Hiroyuki Yokoyama
b7cebcb977 serial: sh: Add r8a7796 support
Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-05-22 04:38:25 +09:00
Stefan Roese
e98856fcff serial: serial-uclass: Use force parameter in stdio_deregister_dev()
On my x86 platform I've noticed, that calling dm_uninit() or the new
function dm_remove_devices_flags() does not remove the desired device at
all. Debugging showed, that the serial uclass returns -EPERM in
serial_pre_remove(). This patch sets the force parameter when calling
stdio_deregister_dev() resulting in a removal of the device.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-17 17:13:06 +08:00
Tom Rini
89024ddc9e TI: Drop 'CONFIG_OMAP'
In the two cases in the code where we use CONFIG_OMAP as a useful test
currently we can make use of CONFIG_ARCH_OMAP2PLUS instead.  With that
changed we can drop all defines of CONFIG_OMAP.  While in here,
CONFIG_OMAP3430 is only defined and then never used, so drop.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-15 10:39:56 -04:00
Lokesh Vutla
a52cf086ac serial: omap: Support debug UART
Add debug UART functions to permit omap specific ns16550 to
provide an early debug UART. This is mostly in common with
DEBUG_UART_NS16550 except for Mode definition register which
is required for selecting UART mode(16x auto-baud or 13x mode).

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-05-11 22:21:27 -04:00
Álvaro Fernández Rojas
3058104056 serial: add serial driver for BCM6345
It is based on linux/drivers/tty/serial/bcm63xx_uart.c

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 16:16:09 +02:00
Wenyou Yang
f8b7fff1d5 serial: atmel_usart: Add clk support
Add the clock support.
Note that the clock handling of the DBGU peripheral is different
from the USART.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09 12:14:15 -06:00
Wenyou Yang
5f29e79915 serial: atmel_usart: Fix early debug not work in SPL
Add the uart init function to be used on both probe and the early
debug uart init. For the latter, the input clock should be from
CONFIG_DEBUG_UART_CLOCK.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09 12:14:15 -06:00
Tom Rini
6f008a2e16 Merge git://git.denx.de/u-boot-sunxi 2017-04-25 16:12:42 -04:00
Icenowy Zheng
e8f86a0261 sunxi: fix the default value of CONS_INDEX on non-A23/A33 SUN8I
Only A23/A33 in SUN8I want a default value of CONS_INDEX of 5, for other
chips the default value is 1 like other Allwinner SoCs.

Fix this default value.

The original wrong value has lead to wrong console on H3 Orange Pi
boards.

Fixes: 7095f86418 ("sunxi: Convert CONS_INDEX to Kconfig")

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-25 11:44:21 +02:00
Mylène Josserand
7095f86418 sunxi: Convert CONS_INDEX to Kconfig
Convert the CONS_INDEX configuration to Kconfig.
Update sunxi's defconfigs to remove SYS_EXTRA_OPTIONS variable not
needed anymore.
Default value is 1 except for sun5i (equals 2) and sun8i (equals 5).

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
[Maxime: Added a depends on ARCH_SUNXI to avoid build breakages]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:20:32 +02:00
xypron.glpk@gmx.de
73be5b3fa7 usbtty: avoid potential NULL pointer dereference
If current_urb is NULL it should not be dereferenced.

The problem was indicated by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-04-18 10:29:23 -04:00
Tom Rini
b7b24a7a3c Merge git://git.denx.de/u-boot-dm
Here with some DM changes as well as the long-standing AT91 DM/DT
conversion patches which I have picked up via dm.
2017-04-13 17:31:06 -04:00
Alexandru Gagniuc
6f8c351e98 serial: ns16550: Link in the DM driver when when using platdata
Do not condition the compilation of the U_BOOT_DRIVER by !OF_PLATDATA.
This is inconsistent with the majority of other drivers. This also
blocks OF_PLATDATA boards with an 16550-compatible serial from using
serial in SPL.

Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Added tweak for rock to avoid a TPL build failure:
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-13 11:43:23 -06:00
Alyssa Rosenzweig
b2aa889411 Fix a bug with PL010s running at 19200 baud
I don't have the hardware test this, but it is almost certainly a typo
in the code dating back to at least 2004.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2017-04-13 09:41:08 -04:00
Andy Shevchenko
c5f8dd482b serial: Add serial driver for Intel MID
Add a specific serial driver for Intel MID platforms.

It has special fractional divider which can be programmed via UART_PS,
UART_MUL, and UART_DIV registers.

The UART clock is calculated as

	UART clock = XTAL * UART_MUL / UART_DIV

The baudrate is calculated as

	baud rate = UART clock / UART_PS / DLAB

Initialize fractional divider correctly for Intel Edison platform.

For backward compatibility we have to set initial DLAB value to 16
and speed to 115200 baud, where initial frequency is 29491200Hz, and
XTAL frequency is 38.4MHz.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2017-04-10 10:02:03 +08:00
Simon Glass
891f7ae633 dm: serial: Allow driver-model serial to be disabled for TPL
Add separate enable/disable controls for driver-model serial. While this
is generally enabled in SPL it may not be in TPL, since serial output can
be obtained with the debug UART with minimal code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-05 16:36:59 -04:00
Tom Rini
ea3310e8aa Blackfin: Remove
The architecture is currently unmaintained, remove.

Cc: Benjamin Matthews <mben12@gmail.com>
Cc: Chong Huang <chuang@ucrobotics.com>
Cc: Dimitar Penev <dpn@switchfin.org>
Cc: Haitao Zhang <hzhang@ucrobotics.com>
Cc: I-SYST Micromodule <support@i-syst.com>
Cc: M.Hasewinkel (MHA) <info@ssv-embedded.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martin Strubel <strubel@section5.ch>
Cc: Peter Meerwald <devel@bct-electronic.com>
Cc: Sonic Zhang <sonic.adi@gmail.com>
Cc: Valentin Yakovenkov <yakovenkov@niistt.ru>
Cc: Wojtek Skulski <info@skutek.com>
Cc: Wojtek Skulski <skulski@pas.rochester.edu>
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-04-05 13:52:01 -04:00
Tom Rini
02ccab1908 Merge branch 'master' of git://www.denx.de/git/u-boot-imx
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	configs/bk4r1_defconfig
	configs/colibri_vf_defconfig
	configs/pcm052_defconfig
	include/configs/colibri_vf.h
	include/configs/pcm052.h
2017-03-19 15:13:38 -04:00
Philipp Tomsich
f40574e2d7 Kconfig: Migrate CONFIG_BAUDRATE
Move this in to Kconfig with a default of 115200.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[trini: Run moveconfig.py, reword commit slightly]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-03-19 14:48:37 -04:00
Sébastien Szymanski
3a5d63635d dm: imx: serial: add i.MX6UL support
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
2017-03-19 17:24:13 +01:00
Tom Rini
f9515756b6 Merge git://git.denx.de/u-boot-rockchip
This includes support for rk3188 from Heiko Stübner and and rk3328 from
Kever Yang.  Also included is SPL support for rk3399 and a fix for
rk3288 to get it booting again (spl_early_init()).
2017-03-17 14:15:17 -04:00
Vikas Manocha
fd03b83a99 stm32f7: serial: use clock driver to enable clock
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17 14:15:13 -04:00
Vikas Manocha
42bf5e7c27 serial: stm32f7: add device tree support
This patch adds device tree support for stm32f7 serial driver & removes serial
platform data structure.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17 14:15:12 -04:00
Peng Fan
7edf5c45f0 serial: lpuart: add i.MX7ULP support
Add i.MX7ULP support.
The buadrate calculation on i.MX7ULP is different,so add a new setbrg
function for i.MX7ULP.
Add a enum lpuart_devtype for runtime check for different platforms.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Shaohui Xie <Shaohui.Xie@nxp.com>
Cc: Alison Wang <b18965@freescale.com>
2017-03-17 09:27:08 +01:00
Peng Fan
c40d612b1a serial: lpuart: restructure lpuart driver
Drop CONFIG_LPUART_32B_REG.
Move the register structure to a common file include/fsl_lpuart.h
Define lpuart_serial_platdata structure which includes the reg base and flags.
For 32Bit register access, use lpuart_read32/lpuart_write32 which handles
big/little endian.
For 8Bit register access, still use the orignal code.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by : Stefano Babic <sbabic@denx.de>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Shaohui Xie <Shaohui.Xie@nxp.com>
Cc: Alison Wang <b18965@freescale.com>
2017-03-17 09:27:08 +01:00
Heiko Stübner
cd76916fa3 rockchip: serial: Adapt rockchip of-platdata driver for rk3188
Add necessary structs to have the driver also work for the serial
on the rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-03-16 16:03:44 -06:00
Tom Rini
b504ff9f6b Xilinx changes for v2017.05
- Move to DM clk driver
 - Add clk support for zynq_sdhci
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Merge tag 'xilinx-for-v2017.05' of git://www.denx.de/git/u-boot-microblaze

Xilinx changes for v2017.05

- Move to DM clk driver
- Add clk support for zynq_sdhci
2017-03-16 16:44:23 -04:00
Patrice Chotard
214a17e61d STiH410: Add STi serial driver
This patch adds support to ASC (asynchronous serial controller)
driver, which is basically a standard serial driver. This IP
is common across other STMicroelectronics SoCs

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-14 20:40:19 -04:00
Stefan Herbrechtsmeier
781745bd87 zynq: Move zynq to clock framework
Move the zynq to clock framework and remove unused functions as well as
the CONFIG_ZYNQ_PS_CLK_FREQ configuration.

Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-02-17 10:22:46 +01:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
Heiko Schocher
17fa032671 serial, ns16550: bugfix: ns16550 fifo not enabled
commit: 65f83802b7 "serial: 16550: Add getfcr accessor"
breaks u-boot commandline working with long commands
sending to the board.

Since the above patch, you have to setup the fcr register.

For board/archs which enable OF_PLATDATA, the new field
fcr in struct ns16550_platdata is not filled with a
default value ...

This leads in not setting up the uarts fifo, which ends
in problems, when you send long commands to u-boots
commandline.

Detected this issue with automated tbot tests on am335x
based shc board.

The error does not popup, if you type commands. You need
to copy&paste a long command to u-boots commandshell
(or send a long command with tbot)

Possible boards/plattforms with problems:
./arch/arm/cpu/arm926ejs/lpc32xx/devices.c
./arch/arm/mach-tegra/board.c
./board/overo/overo.c
./board/quipos/cairo/cairo.c
./board/logicpd/omap3som/omap3logic.c
./board/logicpd/zoom1/zoom1.c
./board/timll/devkit8000/devkit8000.c
./board/lg/sniper/sniper.c
./board/ti/beagle/beagle.c
./drivers/serial/serial_rockchip.c

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-01-20 09:15:19 -05:00
Tom Rini
7f73ca484f Kconfig: CONFIG_OF_PLATDATA doesn't really exist
There is no CONFIG_OF_PLATDATA, only CONFIG_SPL_OF_PLATDATA, so rename
the two references to CONFIG_OF_PLATDATA to CONFIG_SPL_OF_PLATDATA.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-01-14 12:20:23 -05:00
Marek Vasut
0b060eefd9 serial: 16550: Add Ingenic JZ4780 support
Add compatibility string for the Ingenic JZ4780 SoC, the necessary
UART enable bit into FCR and register shift. Neither are encoded
in the DTS coming from Linux, so we need to support it this way.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-19 12:26:37 -05:00
Marek Vasut
79fd928188 serial: 16550: Add port type as driver data
Add driver data to each compatible string to identify the type of
the port. Since all the ports in the driver are entirely compatible
with 16550 for now, all are marked with PORT_NS16550. But, there
are ports which have specific quirks, like the JZ4780 UART, which
do not have any DT property to denote the quirks. Instead, Linux
uses the compatible string to discern such ports and enable the
necessary quirks.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
2016-12-19 12:26:37 -05:00
Marek Vasut
65f83802b7 serial: 16550: Add getfcr accessor
Add function which allows fetching the default FCR register setting
from platform data for DM , while retaining old behavior for non-DM
by returning UART_FCRVAL.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-19 12:26:36 -05:00
Patrick Bruenn
98d62e618b arm: imx: add i.MX53 Beckhoff CX9020 Embedded PC
Add CX9020 board based on mx53loco.
Add simplified imx53 base device tree from kernel v4.8-rc8, to reuse
serial_mxc with DTE and prepare for device tree migration of other
functions and imx53 devices.

The CX9020 differs from i.MX53 Quick Start Board by:
- use uart2 instead of uart1
- DVI-D connector instead of VGA
- no audio
- CCAT FPGA connected to emi
- enable rtc

Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
2016-12-16 12:57:12 +01:00
Simon Glass
ebb2c53585 serial: Drop the s3c24x0 serial driver
This is not used by any boards. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Müller <d.mueller@elsoft.ch>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2016-12-04 13:55:00 -05:00
Fabian Vogt
cb97ad47bf serial: bcm283x_mu: support disabling after initialization
For the Raspberry Pi 3 it needs to be possible to disable the serial
device after initialization happens, as only after the GPIO device is available
it is known whether the mini uart is usable.

Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28 20:09:50 -05:00
Fabian Vogt
165316e38f serial: pl01x: expose skip_init platdata option in DT
To be able to represent the skip-init platdata element with OF_CONTROL,
it needs to be read from the device tree as well and put into the platform data.

Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28 20:09:47 -05:00
Fabian Vogt
9f755f5d09 serial: bcm283x_mu: add device tree support
This patch adds device tree support for the bcm283x mini-uart driver.

Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28 20:09:46 -05:00
Tom Rini
ed77ccd014 Merge git://git.denx.de/u-boot-fsl-qoriq
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	arch/arm/Kconfig
2016-11-25 17:39:54 -05:00
Marcel Ziswiler
cbfa67a16b serial: pxa: integrate optional driver model handling
Optional driver model handling integration.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2016-11-23 13:53:20 +01:00
Marcel Ziswiler
d804a5e1c3 serial: pxa: use kconfig for serial configuration
Migrate the PXA serial driver to be configured via Kconfig.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2016-11-23 13:53:20 +01:00
Shaohui Xie
9b46213b4f lpuart: add a get_lpuart_clk function
It's not always true that LPUART clock is CONFIG_SYS_CLK_FREQ. This
patch provides a weak function get_lpuart_clk(), so that the clock
can be ovreridden on a specific board which uses different clock
for LPUART.

Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
[YS: Reformat commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
2016-11-21 09:20:32 -08:00
Tom Rini
1df182ddf7 Merge branch 'master' of git://git.denx.de/u-boot-atmel 2016-10-28 14:14:18 -04:00
Wenyou Yang
998cf3c2be serial: atmel_usart: Support enable an early debug UART
Add support to enable an early debug UART for debugging.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-10-28 18:37:15 +02:00
Wenyou Yang
6ec739aa52 serial: Kconfig: Add ATMEL_USART option
Add ATMEL_USART option to support to enable the Atmel usart driver
from Kconfig.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-10-28 18:37:15 +02:00
Tom Rini
4f892924d2 Merge branch 'master' of git://www.denx.de/git/u-boot-imx
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	common/Kconfig
	configs/dms-ba16_defconfig
2016-10-28 11:12:03 -04:00
Jagan Teki
8829e662ce serial: Kconfig: Add MXC_UART entry
Added kconfig for MXC_UART driver.

Cc: Simon Glass <sjg@chromium.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2016-10-26 16:53:16 +02:00
Simon Glass
869588decd Convert CONFIG_SYS_STDIO_DEREGISTER to Kconfig
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 <sjg@chromium.org>
[trini: Re-sync]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-10-23 18:34:17 -04:00
Tom Rini
f5fd45ff64 Merge branch 'master' of git://www.denx.de/git/u-boot-imx 2016-10-08 09:33:37 -04:00
Masahiro Yamada
021abf696f Revert "ns16650: Make sure we have CONFIG_CLK set before using infrastructure"
This reverts commit 82f5279b0c.

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 <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-10-08 09:33:31 -04:00
Stefan Agner
a99546ab62 dm: imx: serial: support device tree
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 <stefan.agner@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-10-07 12:26:14 +02:00
Alexandre Courbot
ab895d6af2 serial: ns16550: Handle -ENOENT when requesting clock
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 <acourbot@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
2016-10-06 10:31:59 -04:00
Stefan Roese
6985d49662 serial: Add serial_mvebu_a3700 for Armada 3700 SoC
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 <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
2016-09-27 17:29:52 +02:00
Masahiro Yamada
1221ce459d treewide: replace #include <asm/errno.h> with <linux/errno.h>
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 <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-23 17:55:42 -04:00