- 01 1月, 2019 1 次提交
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由 Manivannan Sadhasivam 提交于
Add UART driver for RDA Micro RDA8810PL SoC. Signed-off-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NOlof Johansson <olof@lixom.net>
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- 10 9月, 2018 1 次提交
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由 Radu Pirea 提交于
This patch modifies the place where resources and device tree properties are searched. Signed-off-by: NRadu Pirea <radu.pirea@microchip.com> Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com> Acked-by: NRichard Genoud <richard.genoud@gmail.com> Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NLee Jones <lee.jones@linaro.org>
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- 14 5月, 2018 1 次提交
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由 John Crispin 提交于
QCA MIPS support is being converted to pure OF. As part of this we are dropping the SOC_AR* symbols. Additionally the SERIAL_AR933X style tty is also found on a few SoCs newer that the AR933x. This patch changes the dependency to ATH79, thus fixing the 2 issues described above. Signed-off-by: NJohn Crispin <john@phrozen.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 23 4月, 2018 2 次提交
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由 Geert Uytterhoeven 提交于
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST". In most cases this other symbol is an architecture or platform specific symbol, or PCI. Generic symbols and drivers without platform dependencies keep their dependencies on HAS_DMA, to prevent compiling subsystems or drivers that cannot work anyway. This simplifies the dependencies, and allows to improve compile-testing. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: NMark Brown <broonie@kernel.org> Acked-by: NRobin Murphy <robin.murphy@arm.com> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
On DT platforms, the sh-sci driver requires the presence of "serialN" aliases in DT, from which instance IDs are derived. If a DT alias is missing, the drivers fails to probe the corresponding serial port. This becomes cumbersome when considering DT overlays, as currently there is no upstream support for dynamically updating the /aliases node in DT. Furthermore, even in the presence of such support, hardcoded instance IDs in independent overlays are prone to conflicts. Hence add support for dynamic instance IDs, to be used in the absence of a DT alias. This makes serial ports behave similar to I2C and SPI buses, which already support dynamic instances. Ports in use are tracked using a simple bitmask of type unsigned long, which is sufficient to handle all current hardware (max. 18 ports). The maximum number of serial ports is still fixed, and configurable through Kconfig. Range validation is done through both Kconfig and a compile-time check. Due to the fixed maximum number of serial ports, dynamic and static instances share the same ID space. Static instances added later are rejected when conflicting with dynamic instances registered earlier. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 26 3月, 2018 4 次提交
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由 Arnd Bergmann 提交于
The tile architecture is getting removed, and this driver is useless without it. Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Arnd Bergmann 提交于
The m32r architecture is getting removed, so we don't need this any more. Acked-by: NNicolas Pitre <nico@fluxnic.net> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Arnd Bergmann 提交于
The blackfin architecture is getting removed, so both the bfin_uart and bfin_sport_uart can be removed as well. Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: NAaron Wu <aaron.wu@analog.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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由 Arnd Bergmann 提交于
The cris architecture is getting removed, so we don't need the uart driver any more. Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: NJesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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- 20 3月, 2018 1 次提交
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This driver supports GENI based UART Controller in the Qualcomm SOCs. The Qualcomm Generic Interface (GENI) is a programmable module supporting a wide range of serial interfaces including UART. This driver support console operations using FIFO mode of transfer. Signed-off-by: NGirish Mahadevan <girishm@codeaurora.org> Signed-off-by: NKarthikeyan Ramasubramanian <kramasub@codeaurora.org> Signed-off-by: NSagar Dharia <sdharia@codeaurora.org> Signed-off-by: NDoug Anderson <dianders@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 18 12月, 2017 1 次提交
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由 Geert Uytterhoeven 提交于
When compile-testing an allmodconfig kernel for a platform without sh-sci serial ports, the SERIAL_SH_SCI_NR_UARTS symbol of type "int" doesn't get assigned a numerical default value, but an empty string, leading to a build failure: .config:3814:warning: symbol value '' invalid for SERIAL_SH_SCI_NR_UARTS ... make[3]: *** [silentoldconfig] Error 1 Fix this by explicitly providing a default value of 2, like before. Reported-by: Nkbuild test robot <fengguang.wu@intel.com> Fixes: f6731485 ("tty: serial: sh-sci: Hide number of ports config question") Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 16 12月, 2017 4 次提交
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由 Geert Uytterhoeven 提交于
On most Renesas ARM platforms, the SCIF serial ports can be used with DMA, so most users will want DMA support to be enabled. On SuperH platforms, SCI(F) serial ports cannot be used with DMA yet (see also commit 219fb0c1 ("serial: sh-sci: Remove the platform data dma slave rx/tx channel IDs")), so users will want it disabled to reduce kernel size. Hence follow the above rationale to configure the default, unless CONFIG_EXPERT is enabled. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
Renesas H8/300 and ARM platforms use DT and support earlycon, so most users want earlycon support to be enabled. On SuperH platforms, earlycon is not yet supported. Hence follow the above rationale to configure the default, unless CONFIG_EXPERT is enabled. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
Most users will want to use a serial console. Hence make that the default, unless CONFIG_EXPERT is enabled. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
Auto-configure the maximum number of serial ports based on how many can be present on the architecture: - 3 on H8/300, - 10 on SuperH, - 18 on Reneas ARM. The default can still be overridden if CONFIG_EXPERT is enabled. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 18 7月, 2017 1 次提交
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由 Andreas Färber 提交于
Implement serial console driver to complement earlycon. Based on LeMaker linux-actions tree. Signed-off-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 20 6月, 2017 1 次提交
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由 Andreas Färber 提交于
This implements an earlycon for Actions Semi S500/S900 SoCs. Based on LeMaker linux-actions tree. Signed-off-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 09 6月, 2017 1 次提交
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由 Andy Shevchenko 提交于
AVR32 is gone. Now it's time to clean up the driver by removing leftovers that was used by AVR32 related code. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: NRichard Genoud <richard.genoud@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 31 3月, 2017 1 次提交
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由 Tobias Klauser 提交于
Nios2 currently uses its own early printk implementation, rather than using unified earlycon support to show boot messages on altera_uart. Add earlycon support to altera_uart so that other archs may use it. Also, this (together with the corresponding patch for altera_jtaguart) will allow the early printk implementation in arch/nios2 to be removed in a future patch. Cc: Ley Foon Tan <lftan@altera.com> Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 17 3月, 2017 2 次提交
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由 Sam Povilus 提交于
The number of uartlites should be set by a kernel parameter instead of using a #define. This allows the user to set the number of uartlites using only kconfig and not modifying kernel source. The uartlite is used by FPGAs that support a basically unlimited number of uarts so limiting it at 16 dosn't make sense as users might need more than that. Signed-off-by: NSam Povilus <kernel.development@povil.us> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tobias Klauser 提交于
Nios2 currently uses its own early printk implementation, rather than using unified earlycon support to show boot messages on altera_jtaguart (and altera_uart for that matter). Add earlycon support to altera_jtaguart so that other archs may use it. Also, this will allow the early printk implementation in arch/nios2 to eventually be removed in a future patch. Cc: Ley Foon Tan <lftan@altera.com> Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 12 1月, 2017 1 次提交
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由 Martin Blumenstingl 提交于
This allows enabling earlycon for devices with a Lantiq serial console by splitting lqasc_serial_port_write() from lqasc_console_write() and re-using the new function for earlycon's write callback. The kernel-parameter name matches the driver name ("lantiq"), similar to how other drivers implement this. Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 10 11月, 2016 1 次提交
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由 Peter Robinson 提交于
The STM32 serial port is SoC specific so no point enabling it without the architecture enabled. Signed-off-by: NPeter Robinson <pbrobinson@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 27 10月, 2016 2 次提交
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由 Sergey Yanovich 提交于
pxa2xx-uart was a separate uart platform driver. It was declaring the same device names and numbers as 8250 driver. As a result, it was impossible to use 8250 driver on PXA SoCs. Upon closer examination pxa2xx-uart turned out to be a clone of 8250_core driver. Workaround for Erratum #19 according to Marvel(R) PXA270M Processor Specification Update (April 19, 2010) is dropped. 8250_core reads from FIFO immediately after checking DR bit in LSR. The patch leaves the original SERIAL_PXA driver around. The original driver is just marked DEPRECATED in Kconfig and C source. When the original driver is considered safe to remove, no changes to SERIAL_8250 will be necessary. Compiling SERIAL_8250_CONSOLE and SERIAL_PXA_CONSOLE even without SERIAL_8250_PXA breaks console for SERIAL_PXA. For this reasons, the new and the original drivers are made mutually exclusive. Signed-off-by: NSergei Ianovich <ynvich@gmail.com> CC: Heikki Krogerus <heikki.krogerus@linux.intel.com> CC: James Cameron <quozl@laptop.org> CC: Robert Jarzmik <robert.jarzmik@free.fr> CC: Russell King <linux@arm.linux.org.uk> Reviewed-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com> [rebased on v4.8] Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
If NO_DMA=y: drivers/built-in.o: In function `stm32_serial_remove': stm32-usart.c:(.text+0xcea1a): undefined reference to `bad_dma_ops' stm32-usart.c:(.text+0xcea7a): undefined reference to `bad_dma_ops' Add a dependency on HAS_DMA to fix this. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NAlexandre Torgue <alexandre.torgue@st.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 31 8月, 2016 1 次提交
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The MIPS based Boston platform provides a 25MHz clock to the UART. Enable the driver for MIPS and add support in the driver to read the frequency from device tree. Signed-off-by: NZubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 26 6月, 2016 2 次提交
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由 Geert Uytterhoeven 提交于
Enabling support for the UART on the ARM MPS2 platform only make sense when compiling for the ARM MPS2 platform, unless compile-testing. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: NVladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
Enhance the Renesas SCI UART driver to add support for GPIO-controlled modem lines (CTS, DSR, DCD, RNG, RTS, DTR), using the serial_mctrl_gpio helpers. GPIO-controlled modem lines can be used when dedicated modem lines are not available. Invalid configurations specifying both GPIO RTS/CTS and dedicated RTS/CTS are rejected. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 13 5月, 2016 1 次提交
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由 Andrei Pistirica 提交于
This adds UART and a serial console driver for Microchip PIC32 class devices. [ralf@linux-mips.org: Resolved merge conflict.] Signed-off-by: NAndrei Pistirica <andrei.pistirica@microchip.com> Signed-off-by: NJoshua Henderson <joshua.henderson@microchip.com> Reviewed-by: NAlan Cox <alan@linux.intel.com> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-serial@vger.kernel.org Cc: linux-api@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12101/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 01 5月, 2016 5 次提交
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由 Vladimir Murzin 提交于
This adds support early console for MPS2 UART which can be enabled via earlycon=mps2,0x40004000 Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NVladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Vladimir Murzin 提交于
This driver adds support to the UART controller found on ARM MPS2 platform. Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: NVladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Oleksij Rempel 提交于
Alphascale ASM9260 uart IP has some common registers with Freescale STMP37XX. This patch provide changes which allow to reuse mxs-auart.c code for ASM9260. Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NOleksij Rempel <linux@rempel-privat.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Geert Uytterhoeven 提交于
Enabling support for the UART on Marvell EBU SoCs only make sense when compiling for Marvell EBU SoCs, unless compile-testing. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Andreas Färber 提交于
Split off the bulk of the existing meson_serial_console_write() implementation into meson_serial_port_write() for implementing meson_serial_early_console_write(). Use "meson" as the earlycon driver name, courtesy of Nicolas. Signed-off-by: NNicolas Saenz Julienne <nicolassaenzj@gmail.com> Acked-by: NCarlo Caione <carlo@endlessm.com> Signed-off-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 3月, 2016 2 次提交
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由 Wilson Ding 提交于
Armada-3700's uart is a simple serial port, which doesn't support. Configuring the modem control lines. The uart port has a 32 bytes Tx FIFO and a 64 bytes Rx FIFO The uart driver implements the uart core operations. It also support the system (early) console based on Armada-3700's serial port. Known Issue: The uart driver currently doesn't support clock programming, which means the baud-rate stays with the default value configured by the bootloader at boot time [gregory.clement@free-electrons.com: Rewrite many part which are too long to enumerate] Signed-off-by: NWilson Ding <dingwei@marvell.com> Signed-off-by: NNadav Haklai <nadavh@marvell.com> Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: NRob Herring <robh@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Simon Horman 提交于
Make use of ARCH_RENESAS in place of ARCH_SHMOBILE. This is part of an ongoing process to migrate from ARCH_SHMOBILE to ARCH_RENESAS the motivation for which being that RENESAS seems to be a more appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs. Signed-off-by: NSimon Horman <horms+renesas@verge.net.au> Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 07 2月, 2016 3 次提交
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由 Rich Felker 提交于
Microblaze currently uses the old earlyprintk system, rather than the unified earlycon support, to show boot messages on uartlite. Add earlycon support so that other archs using uartlite can benefit from it. The new code in uartlite.c is copied almost verbatim from arch/microblaze/kernel/early_printk.c. Signed-off-by: NRich Felker <dalias@libc.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Yoshinori Sato 提交于
"earlyprintk" is architecture specific option. General "earlycon" option support is much better. Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp> [uli: preserve other SCSCR bits when asserting RE and TE] Signed-off-by: NUlrich Hecht <ulrich.hecht+renesas@gmail.com> [geert: rewording, #ifdef rework] Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Frederik Völkel 提交于
It's old, messy and mostly unmaintained. Remove it as suggested by Peter Hurley and Alan. Signed-off-by: NFrederik Völkel <frederik.voelkel@fau.de> Signed-off-by: NLukas Braun <lukas.braun@fau.de> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 14 12月, 2015 1 次提交
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由 Uwe Kleine-König 提交于
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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