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* serial: Add serial_mvebu_a3700 for Armada 3700 SoCStefan Roese2016-09-27-0/+15
| | | | | | | | | | | | | | | | | The Armada 3700's UART is a simple serial port. It has a 32 bytes Tx FIFO and a 64 bytes Rx FIFO integrated. This patch adds support for this UART including the DEBUG UART functions for very early debug output. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Nadav Haklai <nadavh@marvell.com> Cc: Kostya Porotchkin <kostap@marvell.com> Cc: Wilson Ding <dingwei@marvell.com> Cc: Victor Gu <xigu@marvell.com> Cc: Hua Jing <jinghua@marvell.com> Cc: Terry Zhou <bjzhou@marvell.com> Cc: Hanna Hawa <hannah@marvell.com> Cc: Haim Boot <hayim@marvell.com>
* ARM: uniphier: change UNIPHIER_SERIAL to default y optionMasahiro Yamada2016-08-28-0/+1
| | | | | | | This is very likely to be necessary for normal use cases. Set its default to 'y' for shorter defconfig files. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* rockchip: serial: Add an of-platdata driver for rockchipSimon Glass2016-07-14-0/+9
| | | | | | | Add a driver that works with of-platdata. It sets up the platform data and calls the standard ns16550 driver. Signed-off-by: Simon Glass <sjg@chromium.org>
* arm: add initial support for Amlogic Meson and ODROID-C2Beniamino Galvani2016-05-27-0/+15
| | | | | | | | | | | | 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>
* drivers: serial: add serial driver for ar933x SOCWills Wang2016-05-21-0/+18
| | | | | | | | | 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>
* serial: Add support for Qualcomm serial portMateusz Kulikowski2016-04-01-0/+8
| | | | | | | | | 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>
* ARM: uniphier: support Debug UARTMasahiro Yamada2016-03-24-0/+9
| | | | | | | | | | | | 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>
* serial: dcc: Move driver to DMMichal Simek2016-02-25-0/+11
| | | | | | | | | | | | | | | | | | | | | | 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>
* drivers: serial: add driver for Microchip PIC32 UART controller.Paul Thacker2016-02-01-0/+15
| | | | | | | | | | 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>
* ppc: xilinx-ppc4xx: Port to DM serialRicardo Ribalda Delgado2016-01-27-1/+1
| | | | | | | | | | | 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>
* serial: uartlite: Add uartlite to KconfigMichal Simek2016-01-27-0/+7
| | | | | | | | - 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>
* serial: uartlite: Add support for debug consoleMichal Simek2016-01-27-0/+7
| | | | | | | Add support for debug console. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
* serial: lpuart: Move CONFIG_FSL_LPUART to KconfigBin Meng2016-01-20-0/+6
| | | | | | | | | | | LPUART is seen on Freescale VF610 and QorIQ Layerscape devices. Create a Kconfig option and move it to defconfig for all boards that have this serial driver. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Simon Glass <sjg@chromium.org>
* arm: serial: Add Kconfig entries to facilitate usage of the pl01x driver for ↵Sergey Temerkhanov2016-01-19-0/+22
| | | | | | | | | | | | early debug output This patch adds Kconfig entries to facilitate usage of pl01x as a debug UART. Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com> Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: serial: Allow the UART driver to be dropped from the imageSimon Glass2016-01-12-0/+20
| | | | | | | | | | | In very very space-constrained devices even the full UART driver is too large. In this case the debug UART can still be used in some cases. Add options to enable the UART driver in SPL and U-Boot proper. Enable both options by default. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
* serial: zynq: Fix incorrect reference to s5p driverMichal Simek2015-12-07-1/+1
| | | | | | | | Remove this c&p error from s5p driver. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* ns16550: move CONFIG_SYS_NS16550 to KconfigThomas Chou2015-11-21-0/+10
| | | | | | Move CONFIG_SYS_NS16550 to Kconfig, and run moveconfig.py. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
* ns16550: zap CONFIG_NS16550_SERIALThomas Chou2015-11-21-12/+0
| | | | | | | | | Zap CONFIG_NS16550_SERIAL, as the unification of ns16550 drivers is completed. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* ns16550: unify serial_rockchipThomas Chou2015-11-21-10/+1
| | | | | | | | | Unify serial_rockchip, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar> Acked-by: Simon Glass <sjg@chromium.org>
* ns16550: unify serial_ppcThomas Chou2015-11-21-1/+1
| | | | | | | | | 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>
* ns16550: unify serial_x86Thomas Chou2015-11-20-10/+1
| | | | | | | | | 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>
* ns16550: add generic binding to unify the driversThomas Chou2015-11-20-0/+11
| | | | | | | | | | | | | | | | | | | | 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>
* debug_uart: restore ns16550 as defaultThomas Chou2015-11-20-0/+1
| | | | | | | | | | | | | | 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>
* sparc: leon3: Add debug_uart support to LEON3 serial driver.Francois Retief2015-11-13-0/+8
| | | | Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
* arm: zynq: Support the debug UARTSimon Glass2015-11-04-0/+7
| | | | | | | | 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>
* nios2: convert altera_uart to driver modelThomas Chou2015-10-23-0/+14
| | | | | | | | 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>
* nios2: convert altera_jtag_uart to driver modelThomas Chou2015-10-23-0/+26
| | | | | | | | 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>
* debug_uart: Add an option to announce the debug UARTSimon Glass2015-10-21-0/+10
| | | | | | | | | 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>
* debug_uart: Support board-specific UART initialisationSimon Glass2015-10-21-0/+11
| | | | | | | | | | | | 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>
* serial: rockchip: make ROCKCHIP_SERIAL depend on ARCH_ROCKCHIPMasahiro Yamada2015-10-03-1/+1
| | | | | | | 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>
* Merge git://git.denx.de/u-boot-rockchipTom Rini2015-09-03-0/+9
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| * rockchip: Add serial supportSimon Glass2015-09-02-0/+9
| | | | | | | | | | | | | | 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>
* | serial: drop redundant depends onMasahiro Yamada2015-09-02-2/+2
|/ | | | | | | | | | | | 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>
* drivers: hierarchize drivers Kconfig menuMasahiro Yamada2015-08-12-0/+8
| | | | | | | | | | | 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>
* dm: serial: Add a REQUIRE_SERIAL_CONSOLE option for boards with no serial portHans de Goede2015-08-10-0/+11
| | | | | | | | | | | | | | | | | | | | 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>
* exynos: Add debug UART support for Samsung S5P serialSimon Glass2015-08-05-0/+7
| | | | | | | 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>
* efi: Add a serial driverSimon Glass2015-08-05-0/+9
| | | | | | | | | 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>
* x86: Move CONFIG_X86_SERIAL to KconfigSimon Glass2015-08-05-0/+10
| | | | | | | 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>
* sandbox: Move CONFIG_SANDBOX_SERIAL to KconfigSimon Glass2015-06-10-0/+20
| | | | | | Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
* ARM: UniPhier: update the vendor name of UniPhier in KconfigMasahiro Yamada2015-05-31-2/+3
| | | | | | | | | The business for UniPhier Soc family has been transferred from Panasonic Corporation to Socionext Inc. Update the SoC select menu in Kconfig. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* serial: ns16550: Add an option to specify the debug UART register shiftSimon Glass2015-04-22-0/+10
| | | | | | | | This UART permits different register spacing. To support the debug UART on devices which have a spacing other than 1 byte, allow the shift value to be specified. Signed-off-by: Simon Glass <sjg@chromium.org>
* serial: ns16550: Support debug UARTSimon Glass2015-02-19-0/+13
| | | | | | | | Add debug UART functions to permit ns16550 to provide an early debug UART. Try to avoid using the stack so that this can be called from assembler before a stack is set up (at least on ARM and PowerPC). Signed-off-by: Simon Glass <sjg@chromium.org>
* serial: Support an early UART for debuggingSimon Glass2015-02-19-0/+46
| | | | | | | | | | | | | | | | | | | | | This came up in a discussion on the mailing list here: https://patchwork.ozlabs.org/patch/384613/ My concerns at the time were: - it doesn't need to be written in assembler - it doesn't need to be ARM-specific This patch provides a possible alternative. It works by allowing any serial driver to export one init function and provide a putc() function. These can be used to output debug data before the real serial driver is available. This implementation does not depend on driver model, and it is possible for it to operate without a stack on some architectures (e.g. PowerPC, ARM). It provides the same features as the ARM-specific debug.S but with more UART and architecture support. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: Expand and complete Kconfig in drivers/Simon Glass2015-02-12-2/+4
| | | | | | | | Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* serial: uniphier: move CONFIG_UNIPHIER_SERIAL to KconfigMasahiro Yamada2014-10-23-0/+6
| | | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: add entries to KconfigMasahiro Yamada2014-10-23-0/+6
| | | | | | | | Create entries of CONFIG_DM, CONFIG_DM_SERIAL, CONFIG_DM_GPIO and CONFIG_DM_SPI. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
* kconfig: add blank Kconfig filesMasahiro Yamada2014-09-24-0/+0
This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>