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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
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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
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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
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At the same time, move to Kconfig
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
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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>
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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>
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we removed 5xx support. So delete some forgotten remains.
Signed-off-by: Heiko Schocher <hs@denx.de>
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we removed 82xx support. Missed some 82xx remains,
remove them now.
Signed-off-by: Heiko Schocher <hs@denx.de>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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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>
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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>
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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>
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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>
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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>
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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>
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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: 7095f8641863 ("sunxi: Convert CONS_INDEX to Kconfig")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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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>
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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>
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Here with some DM changes as well as the long-standing AT91 DM/DT
conversion patches which I have picked up via dm.
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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>
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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>
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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>
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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>
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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>
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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
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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>
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Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
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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()).
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Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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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>
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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>
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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>
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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>
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Xilinx changes for v2017.05
- Move to DM clk driver
- Add clk support for zynq_sdhci
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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>
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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>
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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>
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commit: 65f83802b7a5b "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>
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