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path: root/drivers/serial
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2016-06-19clk: convert API to match reset/mailbox styleStephen Warren
The following changes are made to the clock API: * The concept of "clocks" and "peripheral clocks" are unified; each clock provider now implements a single set of clocks. This provides a simpler conceptual interface to clients, and better aligns with device tree clock bindings. * Clocks are now identified with a single "struct clk", rather than requiring clients to store the clock provider device and clock identity values separately. For simple clock consumers, this isolates clients from internal details of the clock API. * clk.h is split so it only contains the client/consumer API, whereas clk-uclass.h contains the provider API. This aligns with the recently added reset and mailbox APIs. * clk_ops .of_xlate(), .request(), and .free() are added so providers can customize these operations if needed. This also aligns with the recently added reset and mailbox APIs. * clk_disable() is added. * All users of the current clock APIs are updated. * Sandbox clock tests are updated to exercise clock lookup via DT, and clock enable/disable. * rkclk_get_clk() is removed and replaced with standard APIs. Buildman shows no clock-related errors for any board for which buildman can download a toolchain. test/py passes for sandbox (which invokes the dm clk test amongst others). Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-06-13serial: Introduce linflex uart supportStoica Cosmin-Stefan
The Linflex module is integrated on some NXP automotive SoCs part of the former Freescale portfolio, like S32V234, an SoC for Advanced Driver Assistance Systems. Original-signed-off-by: Stoica Cosmin-Stefan <cosminstefan.stoica@freescale.com> Original-signed-off-by: Chircu Bogdan <Bogdan.Chircu@freescale.com> Original-signed-off-by: Depons Eric <eric.depons@freescale.com> Original-signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com> Signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com>
2016-06-12serial: atmel_usart: Add device tree supportWenyou Yang
Add device tree support. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Andreas Bießmann <andreas@biessmann.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-06Merge http://git.denx.de/u-boot-samsungTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: configs/peach-pi_defconfig configs/peach-pit_defconfig
2016-06-02serial: 16550: Drop OMAP1510 supportMarek Vasut
The CONFIG_OMAP1510 is no longer defined, so remove this dead code. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Nishanth Menon <nm@ti.com>
2016-06-02serial: 16550: Make serial_io/out_shift available to debug modeMarek Vasut
The ns16550 driver needs serial_in_shift() and serial_out_shift() when compiled in debug UART mode, so shift the DM_SERIAL check a little to make these functions available. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-27arm: add initial support for Amlogic Meson and ODROID-C2Beniamino Galvani
This adds platform code for the Amlogic Meson GXBaby (S905) SoC and a board definition for ODROID-C2. This initial submission only supports UART and Ethernet (through the existing Designware driver). DTS files are the ones submitted to Linux arm-soc for 4.7 [1]. [1] https://patchwork.ozlabs.org/patch/603583/ Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-26dm: ns16550: Don't map_physmem for I/O portsPaul Burton
If the UART is to be accessed using I/O port accessors (inb & outb) then using map_physmem doesn't make sense, since it operates in a different memory space. Remove the call to map_physmem when CONFIG_SYS_NS16550_PORT_MAPPED is defined, allowing I/O port addresses to not be mangled by the incorrect mapping. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-05-25serial: s5p: use clock api to get clock rateThomas Abraham
On Exynos platforms that support clock driver API, allow the driver to use clock api get the SCLK clock rate. Cc: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2016-05-25serial: s5p: get the port id number from the alias of the device nodeThomas Abraham
The port id, if not specified in the device node, can be obtained from the alias of the device node listed in the aliases node. Cc: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2016-05-21ar933x: serial: Remove the explicit pinctrl settingWills Wang
The correct pinctrl is handled automatically so we don't need to do it in the driver. Signed-off-by: Wills Wang <wills.wang@live.com>
2016-05-21drivers: serial: add serial driver for ar933x SOCWills Wang
This patch add support for ar933x serial. Signed-off-by: Wills Wang <wills.wang@live.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-17m68k: add DM model serial driverangelo@sysam.it
Boards can now use DM serial driver, or still legacy mcf uart driver version. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Acked-by: Simon Glass <sjg@chromium.org>
2016-04-18serial: bcm283x_mu: make pending values more explicitStephen Warren
dm_serial_ops.pending should return the number of characters, not just a valid C Boolean integer value. The existing code does already does this, but only as an accident since BCM283X_MU_LSR_RX_READY happens to be BIT(0). Enhance the code to be more explicit about the values it returns. Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2016-04-11arc: get rid of running_on_hwAlexey Brodkin
ISS is obsolete now and nSIM is used for simulation instead. In its turn nSIM properly handles baud-rate settings so get rid of now useless check. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2016-04-01serial: Add support for Qualcomm serial portMateusz Kulikowski
This driver works in "new" Data Mover UART mode, so will be compatible with modern Qualcomm chips only. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2016-04-01serial: uniphier: use devm_get_addr() to get base addressMasahiro Yamada
Currently, fdtdec_get_addr_size() does not support the address translation, so it cannot handle device trees with non-straight "ranges" properties. (This would be a problem with DTS for UniPhier ARMv8 SoCs.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-03-27serial: add BCM283x mini UART driverStephen Warren
The RPi3 typically uses the regular UART for high-speed communication with the Bluetooth device, leaving us the mini UART to use for the serial console. Add support for this UART so we can use it. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2016-03-24ARM: uniphier: support Debug UARTMasahiro Yamada
For ARM32 architecture, CONFIG_DEBUG_LL is available for early low-level debugging (and actually UniPhier 32bit SoCs use it), but ARM64 architecture does not support it. Instead, CONFIG_DEBUG_UART is available as an architecture-independent debug facility. This commit supports it on all the UniPhier SoCs (including the new ARMv8 SoCs), which is very useful for new SoC bringups. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-03-22serial: pl01x: Add support for devices with the rate pre-configured.Eric Anholt
For Raspberry Pi, we had the input clock rate to the pl011 fixed in the rpi.c file, but it may be changed by firmware due to user changes to config.txt. Since the firmware always sets up the uart (default 115200 output unless the user changes it), we can just skip our own uart init to simplify the boot process and more reliably get serial output. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
2016-03-17dm: ns16550: Add support for reg-offset propertyMichal Simek
reg-offset is the part of standard 8250 binding in the kernel. It is shifting start of address space by reg-offset. On Xilinx platform this offset is typically 0x1000. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Moved the new field to the end of the struct to avoid problems: Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-17x86: Allow use of serial soon after relocationSimon Glass
At present on x86 machines with use cache-as-RAM, the memory goes away just before board_init_r() is called. This means that serial drivers are no-longer unavailable, until initr_dm() it called, etc. Any attempt to use printf() within this period will cause a hang. To fix this, mark the serial devices as 'unavailable' when it is no-longer available. Bring it back when serial_initialize() is called. This means that the debug UART will be used instead for this period. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-14dm: serial: Remove duplicated carriage return characterAlison Wang
As the handling for carriage return and line feed is done in the common DM driver serial-uclass.c, such handling in some serial DM drivers is duplicated and need to be removed. Signed-off-by: Alison Wang <alison.wang@nxp.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-14serial: Move carriage return before line feed for some serial driversAlison Wang
In general, a carriage return needs to execute before a line feed. The patch is to change some serial drivers based on this rule, such as serial_mxc.c, serial_pxa.c, serial_s3c24x0.c and usbtty.c. Signed-off-by: Alison Wang <alison.wang@nxp.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-14dm: serial-uclass: Move a carriage return before a line feedAlison Wang
In general, a carriage return needs to execute before a line feed. The patch is to change serial DM driver serial-uclass.c based on this rule. Signed-off-by: Alison Wang <alison.wang@nxp.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-02-29Revert "dm: ns16550: Add support for reg-offset property"Tom Rini
This reverts commit d9a3bec682f9756621615f4306718a356a3230e3. While this is a correct change to do long term it unfortunately breaks a number of platforms that are using pdata and not named struct members so they are getting all of their data after 'base' incorrect. Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2016-02-25serial: dcc: Move driver to DMMichal Simek
Enabling this driver requires some DT changes. Adding DCC to root or main bus: dcc: dcc { compatible = "arm,dcc"; u-boot,dm-pre-reloc; }; Extend alias list to link DCC: serial0 = &uart0; serial1 = &uart1; serial2 = &dcc; Change stdout-path to point to dcc port. stdout-path = "serial2:115200n8"; Also add support for debug uart to help with early debug. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-24stm32x7: add support for stm32x7 serial driverVikas Manocha
This patch adds support for stm32f7 family usart peripheral. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-22dm: ns16550: Add support for reg-offset propertyMichal Simek
reg-offset is the part of standard 8250 binding in the kernel. It is shifting start of address space by reg-offset. On Xilinx platform this offset is typically 0x1000. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-22serial: zynq: Change logic in putcMichal Simek
Sync logic with Linux kernel where TX empty flag is checked before char is sent. This logic is fixing problem with console on zynqmp platform. For example: DRAM: 2 GiB Enabling Caches... EL Level: �� sdhci@ff170000: 0 Using default environment Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
2016-02-08s3c24xx: serial: Remove dead codeDavid Müller (ELSOFT AG)
Signed-off-by: David Müller <d.mueller@elsoft.ch>
2016-02-08Remove unused CONFIG_HWFLOW option and associated dead code.David Müller (ELSOFT AG)
Signed-off-by: David Müller <d.mueller@elsoft.ch>
2016-02-08Remove unused CONFIG_MODEM_SUPPORT option and associated dead code.David Müller (ELSOFT AG)
Signed-off-by: David Müller <d.mueller@elsoft.ch>
2016-02-08dm: pxa: serial: Drop serial_sa1100 serial driverSimon Glass
This does not appear to be used, and has not been converted to driver model by the deadline (doc/driver-model/serial-howto.txt). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-08dm: serial: Drop serial_max3100 serial driverSimon Glass
This does not appear to be used, and has not been converted to driver model by the deadline (doc/driver-model/serial-howto.txt). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-08dm: freescale: serial: Drop serial_imx serial driverSimon Glass
This does not appear to be used, and has not been converted to driver model by the deadline (doc/driver-model/serial-howto.txt). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-08dm: opencores: Drop opencores_yanu serial driverSimon Glass
This does not appear to be used, and has not been converted to driver model by the deadline (doc/driver-model/serial-howto.txt). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-08dm: freescale: Drop mxs_auart serial driverSimon Glass
This does not appear to be used, and has not been converted to driver model by the deadline (doc/driver-model/serial-howto.txt). Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-08serial: serial_stm32: move clock config from driver to boardVikas Manocha
This patch removes the uart clock enable from serial driver & move it in the board code. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-06Use correct spelling of "U-Boot"Bin Meng
Correct spelling of "U-Boot" shall be used in all written text (documentation, comments in source files etc.). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-02-02dm: lpuart: Drop the legacy codeBhuvanchandra DV
All boards using this driver are with device tree support, hence drop the legacy code in driver to have a pure DT solution. Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-02-01drivers: serial: add driver for Microchip PIC32 UART controller.Paul Thacker
This adds PIC32 UART controller support based on driver model. Signed-off-by: Paul Thacker <paul.thacker@microchip.com> Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-27ppc: xilinx-ppc4xx: Port to DM serialRicardo Ribalda Delgado
xilinx_uartlite has been ported to DM, this patch makes the xilinx-ppc405-generic and the xilinx-ppc440-generic boards use the new DM driver. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
2016-01-27serial: zynq: Fix address reading from DMMichal Simek
Use dev_get_addr() instead of reading reg base directly in the driver. Core function is also more robust. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-27serial: zynq: Extend compatible string listMichal Simek
ZynqMP is using updated core with cdns,uart-r1p12 compatible string. Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-27serial: uartlite: Add uartlite to KconfigMichal Simek
- Move config option out of board file. - Remove uartlite address from config file Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
2016-01-27serial: uartlite: Add support for debug consoleMichal Simek
Add support for debug console. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
2016-01-27serial: uartlite: Move driver to DMMichal Simek
Enable SPL DM too. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
2016-01-25ns16550: zap the rockchip serial compatible stringThomas Chou
Zap the rockchip serial compatible string, because rockchip serial has "snps,dw-apb-uart" compatible string in the dts. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-25serial: Remove serial_putc_raw_devTom Rini
clang-3.8 reports that serial_putc_raw_dev in serial_ns16550.c is unused. Further investigation shows that we have 3 places that implement this function and no callers, remove. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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