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path: root/drivers/serial
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2015-11-22ns16550: unify serial_ppcThomas Chou
Unify serial_ppc, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> [trini: Add TODO comment] Signed-off-by: Tom Rini <trini@konsulko.com>
2015-11-21ns16550: unify serial_x86Thomas Chou
Unify serial_x86, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-11-21ns16550: add generic binding to unify the driversThomas Chou
Add generic binding to unify ns16550 drivers. There are several drivers using almost the same code, such as serial_dw, serial_keystone, serial_omap, serial_ppc, serial_rockchip, serial_tegra.c, and serial_x86. But each is platform specific. The key difference between these drivers is the way to get input clock frequency. With this unified approach, fixed clock frequency should be extracted from "clock-frequency" property of device tree blob. If this property is not available, the macro CONFIG_SYS_NS16550_CLK will be used. It can be a constant or a function to get clock, eg, get_serial_clock(). Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
2015-11-21ns16550: change map_sysmem to map_physmemThomas Chou
Change map_sysmem() to map_physmem(,,MAP_NOCACHE). Though map_sysmem() can be used to map system memory, it might be wrong to use it for I/O ports. The map_physmem() serves the same purpose to translate physical address to virtual address with the additional flag to take care of cache property. Most drivers use map_physmem() since I/O ports access should be uncached. As ns16550 is a driver, it should use map_physmem() rather than map_sysmem(). Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
2015-11-21debug_uart: restore ns16550 as defaultThomas Chou
Since commit 220e8021af96 ("nios2: convert altera_jtag_uart to driver model"), the default debug uart was changed. Most people use ns16550 UART, so restore it as default. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Reported-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
2015-11-18altera_uart: change ioremap to map_physmemThomas Chou
Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
2015-11-18altera_jtag_uart: change ioremap to map_physmemThomas Chou
Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
2015-11-13sparc: leon3: Add debug_uart support to LEON3 serial driver.Francois Retief
Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
2015-11-06altera_uart: Adjust the declaration of debug_uart_init()Thomas Chou
Follow commit 97b059730218 ("debug_uart: Adjust the declaration of debug_uart_init()") Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Chin Liang See <clsee@altera.com>
2015-11-06altera_jtag_uart: Adjust the declaration of debug_uart_init()Thomas Chou
Follow commit 97b059730218 ("debug_uart: Adjust the declaration of debug_uart_init()") Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Chin Liang See <clsee@altera.com>
2015-11-06serial: altera_uart: minor clean upThomas Chou
- Moved macro definitions to top - Re-arrange header includes ascending order - Remove unused header linux/compiler.h - Remove the penultimate comma in of_match ids Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-11-06serial: altera_uart: use BIT macroThomas Chou
Replace numerical bit shift with BIT macro in altera_uart :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-11-06serial: altera_jtag_uart: minor clean upThomas Chou
- Moved macro definitions to top - Give spaces around the '>>' in ALTERA_JTAG_WSPACE() - Re-arrange header includes ascending order - Remove unused header linux/compiler.h - Remove the penultimate comma in of_match ids Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-11-06serial: altera_jtag_uart: use BIT macroThomas Chou
Replace numerical bit shift with BIT macro in altera_jtag_uart :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-11-04arm: zynq: Move serial driver to driver modelSimon Glass
Update this driver to use driver model and change all users. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-11-04arm: zynq: serial: Drop non-device-tree serial driver portionsSimon Glass
Since we use device tree in SPL also, we can drop this code. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-11-04arm: zynq: Support the debug UARTSimon Glass
Add support for the debug UART to assist with early debugging. Enable it for Zybo as an example. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-11-04dm: serial: Deal with stdout-path with an aliasSimon Glass
Sometimes stdout-path contains a UART alias along with speed, etc. For example: stdout-path = "serial0:115200n8"; Add support for decoding this. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-10-23dm: keystone: serial: Add driver model supportLokesh Vutla
Add driver model support for keystone serial driver. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-10-22serial: remove altera serial initializationsThomas Chou
Both altera_jtag_serial_initialize() and altera_serial_initialize() are no longer used after they are converted to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
2015-10-22nios2: convert altera_uart to driver modelThomas Chou
Convert altera_uart to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
2015-10-22nios2: convert altera_jtag_uart to driver modelThomas Chou
Convert altera_jtag_uart to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-10-22drivers: serial: serial_omap: add comaptibles for all ti platformsMugunthan V N
Adding compatibles for am335x, am437x and dra7 platforms. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2015-10-22drivers: serial: serial_omap: populate default clock frequency when not ↵Mugunthan V N
found in dt In some platforms like am437x, serial node is not populated with clock-frequency node. So in that case have a default clock-clock frequency. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2015-10-21debug_uart: Add an option to announce the debug UARTSimon Glass
It is useful to see a message from the debug UART early during boot so that you know things are working. Add an option to enable this. The message will be displayed as soon as debug_uart_init() is called. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-10-21debug_uart: Support board-specific UART initialisationSimon Glass
Some boards need to set things up before the debug UART can be used. On these boards a call to debug_uart_init() is insufficient. When this option is enabled, the function board_debug_uart_init() will be called when debug_uart_init() is called. You can put any code here that is needed to set up the UART ready for use, such as set pin multiplexing or enable clocks. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-10-21debug_uart: Adjust the declaration of debug_uart_init()Simon Glass
We want to be able to add other common code to this function. So change the driver's version to have an underscore before it, just like _debug_uart_putc(). Define debug_uart_init() to call this version. Update all drivers to this new method. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-10-03serial: rockchip: make ROCKCHIP_SERIAL depend on ARCH_ROCKCHIPMasahiro Yamada
It looks like this line was copy-pasted, but not modified. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-09-15arm: Remove unused ST-Ericsson u8500 archStefan Roese
This arch does not seem to be supported / used at all in the current U-Boot mainline source tree any more. So lets remove the core u8500 code and code that was only referenced by this platform. Please note that this patch also removes these config options: - CONFIG_PL011_SERIAL_RLCR - CONFIG_PL011_SERIAL_FLUSH_ON_INIT As they only seem to be referenced by u8500 based boards. Without any such board in the current code, these config option don't make sense any more. Lets remove them as well. If someone still wants to use this platform, then please send patches to re-enable support by adding at least one board that references this code. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: John Rigby <john.rigby@linaro.org> Cc: Simon Glass <sjg@chromium.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tom Rini <trini@konsulko.com> Cc: Heiko Schocher <hs@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-09-13Merge branch 'rmobile' of git://git.denx.de/u-boot-shTom Rini
2015-09-03Merge git://git.denx.de/u-boot-rockchipTom Rini
2015-09-03rockchip: Add serial supportSimon Glass
Add support for the Rockchip serial device using the ns16550 driver. This uses driver model and device tree for both SPL and U-Boot proper. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02serial: drop redundant depends onMasahiro Yamada
SANDBOX_SERIAL depends on SANDBOX, and SANDBOX selects DM. So, "SANDBOX_SERIAL depends on DM" is redundant. Likewise, UNIPHIER_SERIAL depends on ARCH_UNIPHIER, and ARCH_UNIPHIER selects DM_SERIAL. So, "UNIPHIER_SERIAL depends on DM_SERIAL" is redundant. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-31dm: Use dev_get_addr() where possibleSimon Glass
This is a convenient way for a driver to get the hardware address of a device, when regmap or syscon are not being used. Change existing callers to use it as an example to others. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org>
2015-08-31serial: serial-sh: SCIFA interface for R-Car Gen2 SoCsVladimir Barinov
Add SCIFA console interface for R-Car Gen2 SoCs. SCIFA has different registers offsets and sizes then SCI. Hence it needs to put it's macro definitions separately. Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2015-08-30serial: uniphier: drop platform data supportMasahiro Yamada
This driver is enabled only for UniPhier SoCs and ARCH_UNIPHIER now selects OF_CONTROL and SPL_OF_CONTROL. This driver no longer needs to support platform data configuration. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-08-24serial: pxa: clean-up include file orderMarcel Ziswiler
Cleaning up order of include files by sorting them alphabetically keeping in mind to leave common.h on top. Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
2015-08-18of: clean up OF_CONTROL ifdef conditionalsMasahiro Yamada
We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear away the ugly logic in include/fdtdec.h: #ifdef CONFIG_OF_CONTROL # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL) # define OF_CONTROL 0 # else # define OF_CONTROL 1 # endif #else # define OF_CONTROL 0 #endif Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for SPL. Also, we no longer have to cancel CONFIG_OF_CONTROL in include/config_uncmd_spl.h and scripts/Makefile.spl. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-13dra7xx: Add dra72_evm_defconfig using CONFIG_DMTom Rini
- Import various DT files for DRA7 / DR72x / dra72-evm from Linux Kernel v4.1 - Add config file for this board, enable DM and DM_GPIO Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-08-13drivers: hierarchize drivers Kconfig menuMasahiro Yamada
The menuconfig for drivers are getting more and more cluttered and unreadable because too many entries are displayed in a single flat menu. Use hierarchic menu for each category. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Update to apply again in a few places, drop USB hunk] Signed-off-by: Tom Rini <trini@konsulko.com>
2015-08-10dm: serial: Add a REQUIRE_SERIAL_CONSOLE option for boards with no serial portHans de Goede
Currently the serial code assumes that there is always at least one serial port (and panics / crashes due to null pointer dereferences when there is none). This makes it impossible to use u-boot on boards where there is no (debug) serial port, because e.g. all uart pins are muxed to another function. This commit adds a CONFIG_REQUIRE_SERIAL_CONSOLE Kconfig option, which defaults to y (preserving existing behavior), which can be set to n on such boards to make them work. This commit only implements this for CONFIG_DM_SERIAL=y configs, as allowing running without a serial port for CONFIG_DM_SERIAL=n configs is non trivial, and is not necessary at this moment. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-06exynos: Enable the debug UART in SPLSimon Glass
As a debugging aid, allow UART3 to be used as a debug UART in SPL. This is a precursor to proper UART support, which requires a substantial refactor. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-06exynos: Add debug UART support for Samsung S5P serialSimon Glass
Add a debug UART implementation for this serial driver. It does not set up pinmux automatically - this must be done before calling debug_uart_init(). Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-06exynos: serial: Refactor init code for debug UARTSimon Glass
The debug UART code needs to perform the same init as the normal UART driver. In preparation for this, move the init code into two functions, one for the basic init and one for setting the baud rate. This will make adding debug UART support easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-05efi: Add a serial driverSimon Glass
Add a serial driver which makes use of EFI's console in/out service. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested on Intel Crown Bay and QEMU Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-05x86: Move CONFIG_X86_SERIAL to KconfigSimon Glass
Move this config option to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-05dm: serial: Correct logic in serial_find_console_or_panic()Simon Glass
In a final attempt to find a console UART this function uses the first first available serial device. However the check for a valid device is inverted. This code is only executed when there is in fact no serial UART, but at present it can fail to reach the panic_str() call in this case, and start trying to use a non-existent UART. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-07-21ns16550: Improve debug UART so it can work with 32-bit accessSimon Glass
Since Rockchip requires 32-bit serial access, add this to the driver. Refactor a little to make this easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-07arm: dcc: Add uart dcc support for armv8Siva Durga Prasad Paladugu
Added UART DCC support for armv8 Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2015-06-11sandbox: Move CONFIG_SANDBOX_SERIAL to KconfigSimon Glass
Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
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