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path: root/drivers/serial
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2017-08-03serial: sh: Use the clock framework to obtain clock configMarek Vasut
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>
2017-08-03serial: sh: Convert to KconfigMarek Vasut
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>
2017-07-31dm: console: Check for serial devices properlySimon Glass
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>
2017-07-31serial: stm32x7: Convert CONFIG_STM32X7_SERIAL to KconfigPatrice Chotard
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>
2017-07-27spl: make SPL and normal u-boot stage use independent SYS_MALLOC_F_LENAndy Yan
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>
2017-07-26serial: stm32x7: add clk_get_rate() supportPatrice Chotard
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>
2017-07-26serial: stm32x7: migrate serial struct to driverPatrice Chotard
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>
2017-07-23serial: ns16550: Add RX interrupt buffer supportStefan Roese
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>
2017-07-23powerpc: Remove 8260 remaindersChristophe Leroy
commit 2eb48ff7a210d ("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>
2017-07-12serial: mxc: Add debug uart supportJagan Teki
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>
2017-07-12serial: mxc: Code cleanupJagan Teki
- 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>
2017-07-12serial: mxc: Move common baud gen into _mxc_serial_setbrgJagan Teki
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>
2017-07-12serial: mxc: Move common init into _mxc_serial_initJagan Teki
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>
2017-07-12serial: mxc: Move cr1 and cr2 write to mxc_serial_setbrgJagan Teki
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>
2017-07-12serial: mxc: Use RFDIV in dm-codeJagan Teki
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>
2017-07-12serial: mxc: Add common mxc_uart reg spaceJagan Teki
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>
2017-07-11Merge git://git.denx.de/u-boot-dmTom Rini
2017-07-11dm: serial: Add livetree supportSimon Glass
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
2017-07-11dm: serial: Separate out the core serial-device finding codeSimon Glass
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
2017-07-11dm: serial: ns16550: Convert to livetreeSimon Glass
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
2017-07-11rockchip: ns16550: dm: convert fdt_get to dev_readPhilipp Tomsich
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>
2017-07-08powerpc, 8xx: move Serial driver to drivers/serial/Christophe Leroy
At the same time, move to Kconfig Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-06serial: make serial_stub_* to static functionsMasahiro Yamada
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>
2017-06-23serial, kconfig: fix menutextHeiko Schocher
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>
2017-06-16powerpc, 5xx: remove some "5xx" remainsHeiko Schocher
we removed 5xx support. So delete some forgotten remains. Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16powerpc, 82xx: remove some missed mpc82xx remainsHeiko Schocher
we removed 82xx support. Missed some 82xx remains, remove them now. Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16powerpc, 5xxx, 512x: remove support for mpc5xxx and mpc512xHeiko Schocher
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>
2017-06-12serial: stm32x7: simplify baud rate register calculationPatrice Chotard
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>
2017-06-12serial: stm32x7: align compatible with kernel onePatrice Chotard
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>
2017-06-09serial: stm32f7: disable overrunVikas Manocha
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>
2017-06-01dm: core: Update lists_bind_fdt() to use ofnodeSimon Glass
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>
2017-06-01dm: core: Replace of_offset with accessor (part 2)Simon Glass
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>
2017-06-01dm: Fix up inclusion of common.hSimon Glass
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>
2017-06-01dm: Rename dev_addr..() functionsSimon Glass
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>
2017-06-01dm: Use dm.h header when driver mode is usedSimon Glass
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>
2017-05-31dm: serial: bcm6345: fix baud rate clock calculationÁlvaro Fernández Rojas
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>
2017-05-31dm: serial: bcm6345: fix uart stop bitsÁlvaro Fernández Rojas
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>
2017-05-22serial: sh: Add r8a7796 supportHiroyuki Yokoyama
Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-05-17serial: serial-uclass: Use force parameter in stdio_deregister_dev()Stefan Roese
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>
2017-05-15TI: Drop 'CONFIG_OMAP'Tom Rini
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>
2017-05-11serial: omap: Support debug UARTLokesh Vutla
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>
2017-05-10serial: add serial driver for BCM6345Álvaro Fernández Rojas
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>
2017-05-09serial: atmel_usart: Add clk supportWenyou Yang
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>
2017-05-09serial: atmel_usart: Fix early debug not work in SPLWenyou Yang
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>
2017-04-25Merge git://git.denx.de/u-boot-sunxiTom Rini
2017-04-25sunxi: fix the default value of CONS_INDEX on non-A23/A33 SUN8IIcenowy Zheng
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>
2017-04-20sunxi: Convert CONS_INDEX to KconfigMylène Josserand
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>
2017-04-18usbtty: avoid potential NULL pointer dereferencexypron.glpk@gmx.de
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>
2017-04-13Merge git://git.denx.de/u-boot-dmTom Rini
Here with some DM changes as well as the long-standing AT91 DM/DT conversion patches which I have picked up via dm.
2017-04-13serial: ns16550: Link in the DM driver when when using platdataAlexandru Gagniuc
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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