Commit graph

918 commits

Author SHA1 Message Date
Ye Li
af325e9597 serial_lpuart: Fix config check issue when using clk driver in SPL
Should use CONFIG_IS_ENABLED not IS_ENABLED for CLK driver, so it will
check the CONFIG_SPL_CLK when building SPL

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-11 16:43:41 -04:00
Lukasz Majewski
2756fd16ca serial: mxc: Add compatibles to NXP's serial driver (for imx21 and imx53)
This patch fixes not enabled uart2 (and hence serial console) on i.MX53
devices. After following commit 1d255904c3 ("ARM: dts: imx: imx53:
Synchronize iMX53 DT with Linux") from the uart2 compatible the
'fsl,imx7d-uart' has been removed (which was correct).

However, the root cause of the problem was the commit 98d62e618b ("arm:
imx: add i.MX53 Beckhoff CX9020 Embedded PC") which introduced this
compatible.

Moreover, without this patch all i.MX53 UARTs are not usable as neither
'fsl,imx53-uart' nor 'fsl,imx21-uart' are in compatible IDs in
drivers/serial/serial_mxc.c file.

The fix is to add 'fsl,imx53-uart' and 'fsl,imx21-uart' as compatibles
for the aforementioned serial driver (those are also defined in the Linux
kernel).

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
2019-07-19 20:32:24 +02:00
Lukasz Majewski
1b8c986b68 IMX: serial: dm: Set DM_FLAG_PRE_RELOC in the IMX uart driver
The DM_FLAG_PRE_RELOC shall be set unconditionally as this driver is going
to be re-used in both early SPL and U-Boot proper's pre-reloc.

For i.MX based devices it is crucial to have available the serial console
before relocation (otherwise the board may hand).

The device definition may be provided either via device tree description or
with U_BOOT_DEVICE(mxc_serial) definition. In the latter case the device
will not bind in U-Boot proper when DM_FLAG_PRE_RELOC is not set.

The !CONFIG_IS_ENABLED(OF_CONTROL) #if check was set as a "workaround" for
DM problem described in following commit 4687919684
("serial: Remove DM_FLAG_PRE_RELOC flag in various drivers").

Let's look on this check more thoroughly - we add this flag if the board
doesn't support OF_CONTROL. This is a bit strange as the serial_mxc.c can
be used with CONFIG_DM_SERIAL but without corresponding device tree
description (OF_CONTROL). In such case the aforementioned
U_BOOT_DEVICE(mxc_serial) definition is used.

Other boards/SoCs have this flag set unconditionally for serial driver.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-07-19 20:14:50 +02:00
Tom Rini
a9a3a37f92 - syscon: add support for power off
- stm32mp1: add op-tee config
 - stm32mp1: add specific commands: stboard and stm32key
 - add stm32 mailbox driver
 - solve many stm32 warnings when building with W=1
 - update stm32 gpio driver
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Merge tag 'u-boot-stm32-20190712' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

- syscon: add support for power off
- stm32mp1: add op-tee config
- stm32mp1: add specific commands: stboard and stm32key
- add stm32 mailbox driver
- solve many stm32 warnings when building with W=1
- update stm32 gpio driver
2019-07-14 09:09:49 -04:00
Patrick Delaunay
585289b4fc serial: stm32: Fix warnings when compiling with W=1
This patch solves the following warnings:

drivers/serial/serial_stm32.c: In function 'stm32_serial_probe':
warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if (plat->clock_rate < 0) {
                       ^

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12 11:50:54 +02:00
Vabhav Sharma
1edc5688df drivers: serial: lpuart: Enable Little Endian Support
By default LPUART driver with compatible string "fsl,ls1021a-lpuart"
support big-endian mode.On NXP SoC like LS1028A LPUART IP is
little-endian,Added support to Fetch LPUART IP Endianness from lpuart
device-tree node.

Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-07-10 16:52:58 -06:00
Marek Vasut
6757fa5756 serial: mxc: Add iMX6SX compatible string
Add compatible string for iMX6SX.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Silvio Fricke <silvio.fricke@softing.com>
Cc: Stefano Babic <sbabic@denx.de>
2019-06-11 10:42:48 +02:00
Tom Rini
866a78dc28 - Add various STM32MP1 fixes for serial, env, clk, board, i2c ...
- Add STM32MP1 DDR driver update:
 	These update introduce the DDR interactive mode described in:
 	https://wiki.st.com/stm32mpu/index.php/U-Boot_SPL:_DDR_interactive_mode
 
 	This mode is used by the CubeMX: DDR tuning tool.
 	https://wiki.st.com/stm32mpu/index.php/STM32CubeMX
 
 	The DDR interactive mode is NOT activated by default because
 	it increase the SPL size and slow down the boot time
 	(200ms wait added).
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Merge tag 'u-boot-stm32-20190523' of https://github.com/pchotard/u-boot

- Add various STM32MP1 fixes for serial, env, clk, board, i2c ...

- Add STM32MP1 DDR driver update:
	These update introduce the DDR interactive mode described in:
	https://wiki.st.com/stm32mpu/index.php/U-Boot_SPL:_DDR_interactive_mode

	This mode is used by the CubeMX: DDR tuning tool.
	https://wiki.st.com/stm32mpu/index.php/STM32CubeMX

	The DDR interactive mode is NOT activated by default because
	it increase the SPL size and slow down the boot time
	(200ms wait added).
2019-05-24 08:13:27 -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
Patrick Delaunay
66dba9a18b serial: stm32: remove watchog reset in debug putc
For STM32MP, the watchdog is based on DM and the function watchod_reset
call the function uclass_get_device(UCLASS_WDT) to found the driver
associated IWDG2.

As this reset is not mandatory in debug putc (the  uart fifo will be
empty after some us), we can simplify the code by removing this call.

And this patch avoid issue when putc is called before initialization
of DM core, before the parsing of the device tree parsing and each
node bound to driver; that also avoid memory leak.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-05-23 11:36:48 +02:00
Patrick Delaunay
26603c0ea4 serial: stm32: remove unnecessary trace
Remove the trace indicating the end of the DEBUG initialization

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-05-23 11:36:48 +02:00
Tom Rini
d2d8f73da4 Merge branch 'master' of git://git.denx.de/u-boot-socfpga
- A10 FPGA programming support, Gen5 livetree conversion
2019-05-13 07:13:03 -04:00
Simon Goldschmidt
41b22c0acc serial: altera_uart: convert to livetree
Convert 'altera_uart_ofdata_to_platdata' to use 'dev_read_u32_default'
instead of 'fdtdec_get_int' and get rid of DECLARE_GLOBAL_DATA_PTR.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-05-10 22:48:11 +02:00
Marek Vasut
d0487da83f sh: sh3: Remove CPU support
This CPU core is old, no boards using the CPU are left in mainline,
it has no prospects of ever being converted to DM, drop it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>
2019-05-10 22:43:18 +02:00
Marek Vasut
7de3ea8b98 sh: sh2: Remove CPU support
This CPU core is old, no boards using the CPU are left in mainline,
it has no prospects of ever being converted to DM, drop it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>
2019-05-10 22:43:18 +02:00
Marek Vasut
10e91cfdb0 serial: sh: Drop assorted SH3, SH4, SH5 macros
Drop unused macros from the header to clean it up.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>
2019-05-10 22:43:18 +02:00
Marek Vasut
2a219297c5 serial: sh: Drop RTS7751R2D support
There is no RTS7751R2D support in U-Boot, drop all the RTS7751R2D macros.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>
2019-05-10 22:43:18 +02:00
Marek Vasut
42c09a113e serial: sh: Drop SH2007 support
There is no SH2007 support in U-Boot, drop all the SH2007 macros.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>
2019-05-10 22:43:18 +02:00
Marek Vasut
fcc7cc52e7 serial: sh: Drop H8 support
There is no H8 support in U-Boot, drop all the H8 macros.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro.uh@renesas.com>
2019-05-10 22:43:18 +02:00
Tom Rini
504bf790da Merge branch 'master' of git://git.denx.de/u-boot-sunxi
- H6 Beelink GS1 board (Clément)
- Olimex A64-Teres-I board (Jonas)
- sunxi build fix for CONFIG_CMD_PXE|DHCP (Ondrej)
- Change include order (Jagan)
- EPHY clock changes (Jagan)
- EMAC enablement on Cubietruck Plus, BPI-M3 (Chen-Yu Tsai)
2019-05-08 16:21:43 -04:00
Jagan Teki
b24f9057e8 serial: sifive: Change include order
Like clk_get_by_index, there is requirement for
clk_get_by_index_nodev. In this case to make common
code functionalities for dev and nodev, clk_get_by_index
is trying to get the index of clock by passing ofnode
instead of actual dev like current gpio uclass does.

In these scenarios with current order of include files
the serial_sifive driver is unable to find CONFIG_ENV_SIZE.

In file included from arch/riscv/include/asm/u-boot.h:23:0,
                 from include/dm/of.h:10,
                 from include/dm/ofnode.h:12,
                 from include/clk.h:11,
                 from drivers/serial/serial_sifive.c:6:
include/environment.h:145:19: error: 'CONFIG_ENV_SIZE'
undeclared here (not in a function); did you mean 'CONFIG_CMD_XIMG'?
 #define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)

So, fix consists of changing the order of include files
in serial_sifive.c to include first common.h file.

Cc: Anup Patel <Anup.Patel@wdc.com>
Cc: Rick Chen <rick@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-05-09 00:44:08 +05:30
Marek Vasut
67180fe101 serial: sh: Add RZ/A1 support
Add support for RZ/A1 SoC specifics.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2019-05-07 05:41:32 +02:00
Marek Vasut
99156cd9d3 sh: 7785: Remove CPU support
There are no more boards using this CPU and there is no prospect
of any boards showing up soon, remove it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
2019-05-07 05:41:32 +02:00
Marek Vasut
d13a6144ff sh: 7724: Remove CPU support
There are no more boards using this CPU and there is no prospect
of any boards showing up soon, remove it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
2019-05-07 05:41:31 +02:00
Kever Yang
15f09a1a83 rockchip: use 'arch-rockchip' as header file path
Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common
header file path, so that we can get the correct path directly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:05 +02:00
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
Adam Ford
e434b414fb imx: serial_mxc: use CONFIG_IS_ENABLED instead of ifdef
Kconfig allows boards to configured with DM_SERIAL and still
have SPL_DM_SERIAL disabled.  This patch changes the ifdef's
to CONFIG_IS_ENABLED to allow the modes to differ between
SPL and U-Boot.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-03-13 09:14:35 +01:00
Atish Patra
ee0633ef8b drivers: serial_sifive: Skip baudrate config if no input clock
It is possible that input clock is not available because clk
device was not available and 'clock-frequency' DT property is
also not available.

In this case, instead of failing we should just skip baudrate
config by returning zero.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
2019-02-27 09:12:33 +08:00
Atish Patra
a3682008a0 drivers: serial_sifive: Fix baud rate calculation
Compute the baud rate multipler with more precision.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2019-02-27 09:12:33 +08:00
Max Krummenacher
a24532083c imx: serial_mxc: disable ri and dcd irq in dte mode
If the UART is used in DTE mode the RI and DCD bits in UCR3 become
irq enable bits. Both are set to enabled after reset and both likely
are pending.

Disable the bits to prevent an interrupt storm when Linux enables
the UART interrupts.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2019-02-15 22:01:15 +01:00
Vabhav Sharma
ba8ba69b66 drivers: serial: dm: Enable DM_FLAG_PRE_RELOC in SBSA pl011 uart driver
The DM_FLAG_PRE_RELOC shall be enabled in SBSA PL011 uart driver
as this driver is used in NXP based SoCs

It is necessary to have Serial console running before relocation

The !CONFIG_IS_ENABLED(OF_CONTROL) [*] check is set as "workaround"
for DM problem : 4687919684

This flag is set if board does not support device-tree and using
platform data, In DM Model either of device tree or platform data
can be used to fetch device configuration

It is possible to use SBSA UART with CONFIG_DM_SERIAL but witout
corresponding device tree description (OF_CONTROL)

Other board/SoCs have this flag set unconditionally

Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
2019-02-09 07:50:55 -05:00
Alexey Brodkin
d771dd531a serial_arc: Allocate buffer for private data
Apparently we never allocated buffer for arc_serial_platdata
which for some reason never caused problems when executed in nSIM.
But in Qemu this causes expected problems.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2019-01-25 08:40:26 +03:00
Tom Rini
aac0c29d4b Fix recent changes to serial API for driver model
Buildman clang support and a few fixes
 Small fixes to 'dm tree' and regmap test
 Improve sandbox build compatibility
 A few other minor fixes
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Merge tag 'dm-pull-15jan19' of git://git.denx.de/u-boot-dm

Fix recent changes to serial API for driver model
Buildman clang support and a few fixes
Small fixes to 'dm tree' and regmap test
Improve sandbox build compatibility
A few other minor fixes
2019-01-15 22:05:34 -05:00
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
Simon Glass
a61cbad78e dm: serial: Adjust serial_getinfo() to use proper API
All driver-model functions should have a device as the first parameter.
Update this function accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-01-14 17:47:13 -07:00
Simon Glass
3de04e771c dm: serial: Adjust serial_setconfig() to use proper API
All driver-model functions should have a device as the first parameter.
Update this function accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-01-14 17:47:13 -07:00
Simon Glass
67d1b05130 dm: serial: Adjust serial_getconfig() to use proper API
All driver-model functions should have a device as the first parameter.
Update this function accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-01-14 17:47:13 -07:00
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
Patrice Chotard
f828fa4d82 serial: serial_stm32: Add reset support
In some cases, UART is configured by early boot stage.
To be sure of the initial state of UART and to avoid
spurious chars on console, reset the serial block before
configuring it.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-15 11:49:56 -05:00
Sekhar Nori
d50d6817b5 spl: fix build failure with !CONFIG_SPL_PCI_SUPPORT
Building U-Boot with CONFIG_PCI and CONFIG_DM_PCI enabled, but
CONFIG_SPL_PCI_SUPPORT disabled, results in following linker
error:

lib/built-in.o: In function `fdtdec_get_pci_bar32':
lib/fdtdec.c:305: undefined reference to `dm_pci_read_bar32'
fdtdec.c:305:(.text.fdtdec_get_pci_bar32+0x24): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `dm_pci_read_bar32'

This is because reference to dm_pci_read_bar32() remains in lib/fdtdec.c
while SPL build does not descend into drivers/pci directory in
drivers/Makefile if CONFIG_SPL_PCI_SUPPORT is not enabled.

Fix this by applying appropriate #define guards in lib/fdtdec.c.
It looks like ns16550.c has the same problem, so fixed that too.

To simplify this, CONFIG_SPL_PCI_SUPPORT is renamed to CONFIG_SPL_PCI
(enables use of CONFIG_IS_ENABLED() macro).

Suggested-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-12-12 12:14:23 -05:00
Felix Brack
5eca073ae6 serial: omap: Add code for early debugging
This patch adds code missing when CONFIG_DEBUG_UART_OMAP is enabled as
early debugging UART. The code is basically copied from the ns16550
driver.

Signed-off-by: Felix Brack <fb@ltec.ch>
2018-12-07 08:13:49 -05:00
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
Álvaro Fernández Rojas
09ace9161b serial: bcm6345: switch to raw I/O functions
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-12-07 08:13:46 -05:00
Andy Shevchenko
50bf7d03c2 serial: ns16550: Provide ->getinfo() implementation
New callback will supply necessary information, for example,
to ACPI SPCR table.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 07:23:15 -07:00
Andy Shevchenko
4e7207791c serial: ns16550: Read reg-io-width from device tree
Cache the value of the reg-io-width property for the future use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:08:35 -07:00
Andy Shevchenko
d5bb4f862b dm: serial: Introduce ->getinfo() callback
New callback will give a necessary information to fill up ACPI SPCR table,
for example. Maybe used later for other purposes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Change ADR_SPACE_SYSTEM_IO to SERIAL_ADDRESS_SPACE_IO to fix build error:
Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:08:31 -07:00
Andy Shevchenko
ac7f5db9dc dm: serial: Add ->getconfig() callback
In some cases it would be good to know the settings, such as parity,
of current serial console. One example might be an ACPI SPCR table
to generate using these parameters.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:06:44 -07:00
Simon Goldschmidt
1a67969a99 Revert "serial: ns16550: fix debug uart putc called before init"
This reverts commit 6f57c34473 since it
does not seem to work at least on rk3399.

The Rockchip Technical Reference Manual (TRM) for the rk3399 says the baud
rate prescaler register is readable only when USR[0] is zero. Since this
bit is defined as "reserved" in the socfpga cylcone5 TRM, let's rather
drop this than making the ns16550 debug uart more platform specific.

Reported-by: Roosen Henri <Henri.Roosen@ginzinger.com>
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com
2018-12-03 21:50:47 -05:00
Christophe Leroy
42b54013a0 drivers: serial: get rid of non DM mpc8xx driver
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -05:00
Christophe Leroy
bdfa11ebcf drivers: serial: migrate mpc8xx to DM
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -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
Simon Goldschmidt
9ad3b049ed serial: ns16550: add setconfig support
Add possibility to update the serial parity used.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-11-16 16:52:00 -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
Bin Meng
4687919684 serial: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.

To mitigate this potential impact, the following changes are
implemented:

- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
  only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
  is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
  drivers that support both statically declared devices and
  configuration from device tree

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:28 -08:00
Simon Goldschmidt
6f57c34473 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(), let's rather ignore characters before the debug
uart is initialized.

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

Tested on socfpga_cyclone5_socrates.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:28 -08:00
Bin Meng
8d773c4ab3 dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()
Currently the comments of several APIs (eg: dm_init_and_scan()) say:

@pre_reloc_only: If true, bind only drivers with the DM_FLAG_PRE_RELOC
flag. If false bind all drivers.

The 'Pre-Relocation Support' chapter in doc/driver-model/README.txt
documents the same that both device tree properties and driver flag
are supported.

However the implementation only checks these special device tree
properties without checking the driver flag at all. This updates
lists_bind_fdt() to consider both scenarios.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Squashed in http://patchwork.ozlabs.org/patch/996473/ :
Signed-off-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:27 -08:00
Andy Shevchenko
cdef6bb43c dm: Fix typo - missed semicolon
The commit

  484fdf5ba0 ("dm: Add support for all targets which requires MANUAL_RELOC")

introduces subtle typo, i.e. missed semicolon.

Fixes: 484fdf5ba0 ("dm: Add support for all targets which requires MANUAL_RELOC")
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
2018-11-09 10:44:50 -05:00
Tom Rini
cf033e04da Merged imx8 architecture, fix build for imx8 + warnings
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Merge tag 'u-boot-imx-20181025' of git://git.denx.de/u-boot-imx

Merged imx8 architecture, fix build for imx8 + warnings
2018-10-25 10:16:21 -04:00
Bernhard Messerklinger
4684fa8bdd serial: mxc: Add match string for i.mx6 quad/dual lite serial
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
2018-10-22 18:56:17 +02:00
Peng Fan
8f5b6299bc serial: lpuart: support uclass clk api
Modify most APIs to use udevice as the first parameter, then
it will be easy to get the clk reference by using udevice pointer.
Use uclass api to get lpuart clk when CONFIG_CLK is enabled.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2018-10-22 12:59:02 +02:00
Ye Li
cdc16f6182 serial: lpuart: Enable RX and TX FIFO
Enable the RX and TX FIFO in LPUART driver to avoid the input lost
during U-Boot boot up.

Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2018-10-22 12:59:02 +02:00
Peng Fan
126f884903 serial_lpuart: Update lpuart driver to support i.MX8
Add i.MX8 compatible string and cpu type support to lpuart driver,
to use little endian 32 bits configurations.

Also, according to RM, the Receive FIFO Enable (RXFE) field in LPUART
FIFO register is bit 3, so this definition should change to 0x08
(not 0x40) for i.MX8, otherwise the Receive FIFO is not disabled.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2018-10-22 12:59:02 +02:00
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
4af3e9ad8a sandbox: Restore blocking I/O on exit
At present sandbox sets non-blocking I/O as soon as any input is read
from the terminal. However it does not restore the previous state on
exit. Fix this and drop the old os_read_no_block() function.

This means that we always enable blocking I/O in sandbox (if input is a
terminal) whereas previously it would only happen on the first call to
tstc() or getc(). However, the difference is likely not important.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Simon Glass
114b60a7e6 serial: sandbox: Allow serial output without device tree
At present sandbox assumes that device-tree control is active, but this
may not be the case in SPL or TPL. Add some conditions to handle this.

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
Patrice Chotard
95a077217b serial: serial_stm32: Enable uart FIFO for STM32F7xx SoCs
Since commit 7b3b74d321 ("serial: serial_stm32: Enable overrun")
on STM32F7xx based boards, the first lines of serial output are
missing during boot (we no more see the U-Boot release version,
board model and DRAM size).

By enabling the uart FIFO on STM32F7, the complete U-boot log
can be sent correctly.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-09-30 13:00:35 -04:00
Tom Rini
0ae8dcfef7 Patch queue for efi - 2018-09-26
A lot of goodness in this release. We're *very* close to running the
 UEFI Shell and SCT natively. The only missing piece are HII protocols.
 
   - FAT write support (needed for SCT)
   - improved FAT directory support (needed for SCT)
   - RTC support with QEMU -M virt
   - Sandbox support (run UEFI binaries in Linux - yay)
   - Proper UTF-16 support
   - EFI_UNICODE_COLLATION_PROTOCOL support (for UEFI Shell)
   - EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL support (for UEFI Shell)
   - Fix window size determination
   - Fix Tegra by explicitly unmapping RAM
   - Clean up handle entanglement
   - Lots of generic code cleanup
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Merge tag 'signed-efi-next' of git://github.com/agraf/u-boot

Patch queue for efi - 2018-09-26

A lot of goodness in this release. We're *very* close to running the
UEFI Shell and SCT natively. The only missing piece are HII protocols.

  - FAT write support (needed for SCT)
  - improved FAT directory support (needed for SCT)
  - RTC support with QEMU -M virt
  - Sandbox support (run UEFI binaries in Linux - yay)
  - Proper UTF-16 support
  - EFI_UNICODE_COLLATION_PROTOCOL support (for UEFI Shell)
  - EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL support (for UEFI Shell)
  - Fix window size determination
  - Fix Tegra by explicitly unmapping RAM
  - Clean up handle entanglement
  - Lots of generic code cleanup

[trini: Fixup merge conflict in include/configs/qemu-arm.h]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-09-26 17:02:46 -04:00
Lokesh Vutla
c1523c65fc serial: omap: Add support for AM654 uart controller
AM654 uses a UART controller that is compatible (partially) with
existing OMAP UART, Introduce a compatible for adding support
for this controller.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-09-25 21:50:34 -04:00
Heinrich Schuchardt
3e603ec757 efi_loader: struct efi_simple_text_input_protocol
%s/efi_simple_input_interface/efi_simple_text_input_protocol/

We should be consistent in the naming of the EFI protocol interface
structures. The protocol is called EFI_SIMPLE_TEXT_INPUT_PROTOCOL.

%s/ExtendedVerification/extended_verification/

Use consistent naming of function parameters. Do not use CamelCase.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2018-09-23 21:55:29 +02:00
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
Lokesh Vutla
5f133bb7c5 serial: arm_dcc: Add DCC support for V7R based cores
DCC is supported on Cortex R series as well. Enable DCC support
for V7R.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-09-10 20:48:20 -04:00
Patrice Chotard
d7c09684d7 sandbox: Add serial test
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-09-10 20:48:12 -04:00
Patrice Chotard
fbd5c72d76 serial: stm32: Replace setparity by setconfig
Replace stm32_serial_setparity by stm32_serial_setconfig
which allows to set serial bits number, parity and stop
bits number.
Only parity setting is implemented.

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>
2018-09-10 20:20:38 -04:00
Patrice Chotard
cbf538831d dm: serial: Replace setparity by setconfig
Replace setparity by more generic setconfig ops
to allow uart parity, bits word length and stop bits
number change.

Adds SERIAL_GET_PARITY/BITS/STOP macros.

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>
2018-09-10 20:20:38 -04:00
Patrick Delaunay
d3bb785854 serial: protect access to serial rx buffer
Add test to avoid access to rx buffer when this buffer is empty.
In this case directly call getc() function to avoid issue when tstc()
is not called.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-09-10 20:20:34 -04:00
Heinrich Schuchardt
938b05a5d7 drivers: serial: document on_baudrate()
Add parameter description.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-08-10 13:45:32 -04:00
Tom Rini
481ea2e39d mips: au1x00: Remove support for these SoCs
The only platform left for the AU1x00 SoCs was the pb1x00 platform, an
apparent clone of the dbau1x00 platform.  As pb1x00 had no listed
maintainer I am assuming that it is also orphaned.  Remove this platform
and then remove the unused SoC support.

Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-08-08 13:34:27 +02:00
Joe Hershberger
82a115fdec sandbox: Don't disable ctrlc() on sandbox if in raw mode
In raw mode, handle ctrl-c as normal. This allows normal ctrl-c behavior
such as aborting a command that is timing out without completely
terminating the sandbox executable.

In [1], Simon disabled this.  His reason for it was that it interferes
with piping test scripts. Piping should be done in cooked mode, so this
change should still not interfere.

[1] commit 8969ea3e9f ("sandbox: Disable Ctrl-C")

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-26 14:08:17 -05:00
Michal Simek
6bdf0a992c serial: zynq: Use platdata for storing static data instead of priv
Explanation from Simon Glass
"Private data is created when the device is probed and freed when the
device is removed.

Platform data is created when the device is bound, and survives
probe/remove cycles.

Strictly speaking, platform data should be used to hold the decoded
device tree properties. Private data should be used for run-time
things the device needs to keep track of."

Based on description the driver needs to be switch to use platdata
instead of priv.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-19 10:49:54 +02:00
Ley Foon Tan
b051eecbda serial: ns16550: Add reset ctrl to driver
Add code to reset all reset signals as in serial DT node. A reset
property is an optional feature, so do not fail if a reset property is
not present.

If a reset property is discovered, then use it to deassert, thus
bringing the IP out of reset.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-09 15:28:28 -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
Masahiro Yamada
41bacb597e serial: uniphier: set clock rate without clock-frequency property
In Linux, the clock rate of the UART is given by the clock driver.

If you try to follow that in U-Boot, you would end up with adding
more u-boot,dm-pre-reloc properties, and also the clock driver would
be too big for SPL, which is used for UniPhier ARMv7 platform.

The current solution is to add 'clock-frequency' property to the
UART nodes, but it does not exist in the DT files in Linux.  I do
not want to let DT diverge for U-Boot.

Check the SoC compatible and set the clock rate according to it.
This will be helpful to sync DT between Linux and U-Boot.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-23 01:28:15 +09:00
Masahiro Yamada
157736a9ee serial: uniphier: rename struct uniphier_serial_private_data
Just for making it shorter.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-23 01:28:14 +09:00
Michal Simek
b729ed0d95 serial: zynq: Make zynq_serial_setbrg static
This function is used only inside this driver that's why should be
static.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15 08:54:05 +02:00
Michal Simek
a673025535 serial: zynq: Initialize uart only before relocation
This issue was found when OF_LIVE was enabled that there are scrambled
chars on the console like this:
Chip ID:	zu3eg
Watchdog: Started��j�   sdhci@ff160000: 0, sdhci@ff170000: 1
In:    serial@ff010000

I found a solution for this problem exactly the same as I found later in
serial_msm fixed by:
"serial: serial_msm: initialize uart only before relocation"
(sha1: 7e5ad796bc)

What it is happening is that output TX fifo still contains chars to be
sent and _uart_zynq_serial_init() resets TX fifo even in the middle of
transfer.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15 08:54:05 +02:00
Michal Simek
e90d2659e4 serial: zynq: Write chars till output fifo is full
Change logic and put char to fifo till there is a space in output fifo.
Origin logic was that output fifo needs to be empty. It means only one
char was in output queue.
Also remove unused ZYNQ_UART_SR_TXEMPTY macro.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15 08:54:05 +02:00
Michal Simek
c9a2c47b91 serial: zynq: Use BIT macros instead of shifts and full hex numbers
Coding style is checking to use BIT macros instead of shifts.
The patch is also fixing the rest of macros which should be BITs instead
of hex numbers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15 08:54:05 +02:00
Tom Rini
2a046ff5e9 Merge branch 'master' of git://git.denx.de/u-boot-mips 2018-06-01 16:46:39 -04:00
Álvaro Fernández Rojas
0f56993788 serial: bcm6345: convert to use live dt
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-06-01 15:56:02 +02:00
Michal Simek
ce69030eb9 serial: zynq: Use live-tree functions
Use live-tree functions.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-31 13:50:39 +02:00
Patrick Delaunay
bc709a41ca serial: stm32: Add setparity support
Add possibility to update the serial parity used.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-26 18:19:18 -04:00
Patrice Chotard
be1a6f775e serial: stm32: Fix bits defines name
Rename USART_ISR_FLAG_xxx bits to USART_ISR_xxx bits and
USART_ICR_OREF to USART_ICR_ORECF in order to match datasheets.
Sort defines by descendant order.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26 18:19:17 -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
Ramon Fried
b460b889e2 serial: serial_msm: added pinmux & config
Serial port configuration was missing from previous implementation.
It only worked because it was preconfigured by LK.
This patch configures the uart for 115200 8N1.
It also configures the pin mux for uart pins using DT bindings.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
2018-05-26 18:19:17 -04:00
Ramon Fried
7e5ad796bc serial: serial_msm: initialize uart only before relocation
The uart is already initialized prior to relocation,
reinitialization after relocation is unnecessary.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26 12:46:50 -04:00
Ramon Fried
11d59fe537 serial: serial_msm: fail probe if settings clocks fails
Failure to set the clocks will causes data abort exception when
trying to write to AHB uart registers.
This patch ensures that we don't touch these registers if clock
setting failed.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26 12:46:50 -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