Commit graph

109 commits

Author SHA1 Message Date
Jason Li
0de653d8cf serial: serial_cortina: add UART DM driver for CAxxxx SoCs
Add serial UART driver support for all Cortina Access
CAxxxx family of SoCs.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Jason Li <jason.li@cortina-access.com>
Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com>
2020-02-07 16:16:01 -05:00
Simon Glass
44482e8a2a x86: serial: Add a coreboot serial driver
Coreboot can provide information about the serial device in use on a
platform. Add a driver that uses this information to produce a working
UART.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 01:19:25 +08:00
Simon Glass
62cbde4c4e serial: ns16550: Support run-time configuration
At present this driver uses an assortment of CONFIG options to control
how it accesses the hardware. This is painful for platforms that are
supposed to be controlled by a device tree or a previous-stage bootloader.

Add a new CONFIG option to enable fully dynamic configuration. This
controls register spacing, size, offset and endianness.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Aiden Park <aiden.park@intel.com>
Tested-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed in http://patchwork.ozlabs.org/patch/1232929/]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2020-02-04 01:19:13 +08:00
Sean Anderson
327bb3bc1e Add dependencies for MALLOC_F and OF_LIBFDT
Some features implicitly depended on MALLOC_F and OF_LIBFDT and would
fail at link-time if these features were not enabled.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
2020-01-15 19:50:31 -05:00
Thomas Hebb
6920f00c2c Kconfig: make TPL_DM_SERIAL depend on TPL_DM
This missing dependency seems like an oversight, since all other
TPL_DM_* options have it.

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
2019-12-03 08:43:23 -05:00
Peng Fan
8c247bbe23 serial: Kconfig: make MXC_UART usable for MX7 and IMX8M
i.MX7 and i.MX8M use mxc uart driver, so let's make the SoC could
use MXC_UART kconfig.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
2019-10-08 16:35:16 +02:00
Adam Ford
a074667d52 Kconfig: Varios: Fix more SPL, TPL dependencies
Several options are presenting themselves on a various boards
where the options are clearly not used.  (ie, SPL/TPL options
when SPL or TPL are not defined)

This patch is not attempting to be a complete list of items, but
more like low hanging fruit.  In some instances, I wasn't sure
of DM was required, so I simply made them SPL or TPL.

This patch attempts to reduce some of the menuconfig noise
by defining dependencies so they don't appear when not used.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-08-26 11:46:29 -04:00
Angelo Dureghello
461ea07963 drivers: serial: mcfuart: add DT support
This patch adds devicetree support to the mcfuart.c driver
and removes non DM code.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
2019-05-24 08:11:58 -04:00
Stefan Roese
e567dfb213 serial: atmel_usart: Use fixed clock value in SPL version with DM_SERIAL
This patch adds an alterative SPL version of atmel_serial_enable_clk().
This enables the usage of this driver without full clock support (in
drivers and DT nodes). This saves some space in the SPL image.

Please note that this fixed clock support is only added to the SPL code
in the DM_SERIAL part of this file. All boards not using SPL & DM_SERIAL
should not be affected.

This patch also introduces CONFIG_SPL_UART_CLOCK for the fixed UART
input clock. It defaults to 132096000 for ARCH_AT91 but can be set to
a different value if needed.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Andreas Bießmann <andreas@biessmann.org>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
2019-04-09 09:28:50 +03:00
Simon Goldschmidt
c4448bdc4f serial: ns16550: fix debug uart putc called before init
If _debug_uart_putc() is called before _debug_uart_init(), the
ns16550 debug uart driver hangs in a tight loop waiting for the
tx FIFO to get empty.

As this can happen via a printf sneaking in before the port calls
debug_uart_init(), introduce a config option to ignore characters
before the debug uart is initialized.

This is done by reading the baudrate divisor and aborting if is zero.

The Kconfig option is required as reading the baudrate divisor does
not seem to work for all ns16500 compatibles (which is why the last
attempt on this has been reverted in 1a67969a99).

Tested on socfpga_cyclone5_socrates.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-01-15 15:28:52 -05:00
Simon Goldschmidt
7828e3cf70 drivers: serial: DEBUG_UART_SKIP_INIT depends on DEBUG_UART
DEBUG_UART_SKIP_INIT is used only by debug UART and thus should depend
on DEBUG_UART.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-01-15 15:28:52 -05:00
Anup Patel
e2842496ac drivers: serial: Add SiFive UART driver
This patch adds SiFive UART driver. The driver is 100% DM driver
and it determines input clock using clk framework.

Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2018-12-18 09:56:54 +08:00
Álvaro Fernández Rojas
e9e8d80d8c serial: bcm6858: remove driver and switch to bcm6345
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-12-07 08:13:46 -05:00
Ryder Lee
849b11605a serial: MediaTek: add high-speed uart driver for MediaTek SoCs
Many SoCs from MediaTek have a high-speed uart. This UART is compatible
with the ns16550 in legacy mode. It has extra registers for high-speed
mode which can reach a maximum baudrate at 921600.

However this UART will no longer be compatible if it's in high-speed mode.
Some BootROM of MediaTek's SoCs will change the UART into high-speed mode
and the U-Boot must use this driver to initialize the UART.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Tested-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-28 23:04:53 -05:00
Philippe Reynes
f371f91bdd serial: bcm6858: add serial support
This driver add the support of serial on bcm6858.
It's based on serial for bcm6345.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2018-11-16 13:34:35 -05:00
Simon Glass
aa0ffe8eb9 serial: Allow serial to be absent in TPL
At present this option applies to SPL, but it should be available in TPL
also, and separately. Change to using CONFIG_IS_ENABLED(), add a new
Kconfig option and fix up hang().

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Simon Glass
ee4417644c sandbox: Add a debug UART
Add support for the debug UART so that sandbox provides build testing for
this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Lokesh Vutla
586bde93eb arm: K3: Add initial support for TI's K3 generation of SoCs
Add support for Texas Instruments' K3 Generation Processor
families.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-09-11 08:32:55 -04:00
Lokesh Vutla
5d754197a7 serial: omap: Introduce DM specific omap serial
Add driver model support for OMAP_SERIAL while reusing
the functions in ns16550.c

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Derald D. Woods <woods.technical@gmail.com>
2018-09-10 21:19:32 -04:00
Manivannan Sadhasivam
6f9347f3bc serial: Add Actions Semi OWL UART support
This commit adds Actions Semi OWL family UART support. This driver
relies on baudrate configured by primary bootloaders.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-09 15:25:39 -04:00
Patrick Delaunay
215c8bed12 serial: stm32: Add debug uart support
Add support for early debug printf, before the availability of
driver model and device tree support.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26 18:19:17 -04:00
Alexey Brodkin
54705016ba serial/serial_arc: Implement debug serial
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-05-24 15:59:17 +03:00
Alexey Brodkin
d7ac185fd8 serial: Convert ARC_SERIAL to Kconfig
One step closer to completely Kconfig-driven target configuration in
U-Boot :)

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-05-24 15:59:17 +03:00
Michal Simek
1d6c54ecb3 arm: zynqmp: Add ZynqMP minimal R5 support
Xilinx ZynqMP also contains dual Cortex R5 which can run U-Boot.
This patch is adding minimal support to get U-Boot boot.
U-Boot on R5 runs out of DDR with default configuration that's why
DDR needs to be partitioned if there is something else running on arm64.
Console is done via Cadence uart driver and the first Cadence Triple
Timer Counter is used for time.

This configuration with uart1 was tested on zcu100-revC.

U-Boot 2018.05-rc2-00021-gd058a08d907d (Apr 18 2018 - 14:11:27 +0200)

Model: Xilinx ZynqMP R5
DRAM:  512 MiB
WARNING: Caches not enabled
MMC:
In:    serial@ff010000
Out:   serial@ff010000
Err:   serial@ff010000
Net:   Net Initialization Skipped
No ethernet found.
ZynqMP r5>

There are two ways how to run this on ZynqMP.
1. Run from ZynqMP arm64
tftpb 20000000 u-boot-r5.elf
setenv autostart no && bootelf -p 20000000
cpu 4 disable && cpu 4 release 10000000 lockstep
or
cpu 4 disable && cpu 4 release 10000000 split

2. Load via jtag when directly to R5

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:38:23 +02:00
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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