diff options
Diffstat (limited to 'drivers/tty/serial/8250/Kconfig')
| -rw-r--r-- | drivers/tty/serial/8250/Kconfig | 86 |
1 files changed, 62 insertions, 24 deletions
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index f16824bbb573..b0f62345bc84 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -9,14 +9,13 @@ config SERIAL_8250 depends on !S390 select SERIAL_CORE select SERIAL_MCTRL_GPIO if GPIOLIB - ---help--- + help This selects whether you want to include the driver for the standard serial ports. The standard answer is Y. People who might say N here are those that are setting up dedicated Ethernet WWW/FTP servers, or users that have one of the various bus mice instead of a serial mouse and don't intend to use their machine's standard serial - port for anything. (Note that the Cyclades multi serial port driver - does not need this driver built in for it to work.) + port for anything. To compile this driver as a module, choose M here: the module will be called 8250. @@ -39,7 +38,7 @@ config SERIAL_8250_DEPRECATED_OPTIONS bool "Support 8250_core.* kernel options (DEPRECATED)" depends on SERIAL_8250 default y - ---help--- + help In 3.7 we renamed 8250 to 8250_core by mistake, so now we have to accept kernel parameters in both forms like 8250_core.nr_uarts=4 and 8250.nr_uarts=4. We now renamed the module back to 8250, but if @@ -56,13 +55,14 @@ config SERIAL_8250_PNP bool "8250/16550 PNP device support" if EXPERT depends on SERIAL_8250 && PNP default y - ---help--- + help This builds standard PNP serial support. You may be able to disable this feature if you only need legacy serial support. config SERIAL_8250_16550A_VARIANTS bool "Support for variants of the 16550A serial port" depends on SERIAL_8250 + default !X86 help The 8250 driver can probe for many variants of the venerable 16550A serial port. Doing so takes additional time at boot. @@ -73,7 +73,7 @@ config SERIAL_8250_16550A_VARIANTS config SERIAL_8250_FINTEK bool "Support for Fintek F81216A LPC to 4 UART RS485 API" depends on SERIAL_8250 - ---help--- + help Selecting this option will add support for the RS485 capabilities of the Fintek F81216A LPC to 4 UART. @@ -87,7 +87,7 @@ config SERIAL_8250_CONSOLE depends on SERIAL_8250=y select SERIAL_CORE_CONSOLE select SERIAL_EARLYCON - ---help--- + help If you say Y here, it will be possible to use a serial port as the system console (the system console is the device which receives all kernel messages and warnings and which allows logins in single user @@ -116,9 +116,9 @@ config SERIAL_8250_CONSOLE If unsure, say N. -config SERIAL_8250_GSC +config SERIAL_8250_PARISC tristate - depends on SERIAL_8250 && GSC + depends on SERIAL_8250 && PARISC default SERIAL_8250 config SERIAL_8250_DMA @@ -157,7 +157,7 @@ config SERIAL_8250_HP300 config SERIAL_8250_CS tristate "8250/16550 PCMCIA device support" depends on PCMCIA && SERIAL_8250 - ---help--- + help Say Y here to enable support for 16-bit PCMCIA serial devices, including serial port cards, modems, and the modem functions of multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are @@ -221,11 +221,11 @@ config SERIAL_8250_MANY_PORTS Say Y here if you have dumb serial boards other than the four standard COM 1/2/3/4 ports. This may happen if you have an AST FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available - from <http://www.tldp.org/docs.html#howto>), or other custom + from <https://www.tldp.org/docs.html#howto>), or other custom serial port hardware which acts similar to standard serial port hardware. If you only use the standard COM 1/2/3/4 ports, you can say N here to save some memory. You can also say Y if you have an - "intelligent" multiport card such as Cyclades, Digiboards, etc. + "intelligent" multiport card such as Digiboards, etc. # # Multi-port serial cards @@ -254,6 +254,7 @@ config SERIAL_8250_ASPEED_VUART depends on SERIAL_8250 depends on OF depends on REGMAP && MFD_SYSCON + depends on ARCH_ASPEED || COMPILE_TEST help If you want to use the virtual UART (VUART) device on Aspeed BMC platforms, enable this option. This enables the 16550A- @@ -265,7 +266,7 @@ config SERIAL_8250_BOCA depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS help Say Y here if you have a Boca serial board. Please read the Boca - mini-HOWTO, available from <http://www.tldp.org/docs.html#howto> + mini-HOWTO, available from <https://www.tldp.org/docs.html#howto> To compile this driver as a module, choose M here: the module will be called 8250_boca. @@ -361,9 +362,13 @@ config SERIAL_8250_BCM2835AUX If unsure, say N. config SERIAL_8250_FSL - bool + bool "Freescale 16550 UART support" if COMPILE_TEST && !(PPC || ARM || ARM64) depends on SERIAL_8250_CONSOLE default PPC || ARM || ARM64 + help + Selecting this option enables a workaround for a break-detection + erratum for Freescale 16550 UARTs in the 8250 driver. It also + enables support for ACPI enumeration. config SERIAL_8250_DW tristate "Support for Synopsys DesignWare 8250 quirks" @@ -375,7 +380,8 @@ config SERIAL_8250_DW config SERIAL_8250_EM tristate "Support for Emma Mobile integrated serial port" - depends on SERIAL_8250 && ARM && HAVE_CLK + depends on SERIAL_8250 && HAVE_CLK + depends on ARCH_RENESAS || COMPILE_TEST help Selecting this option will add support for the integrated serial port hardware found on the Emma Mobile line of processors. @@ -383,7 +389,8 @@ config SERIAL_8250_EM config SERIAL_8250_IOC3 tristate "SGI IOC3 8250 UART support" - depends on SGI_MFD_IOC3 && SERIAL_8250 + depends on SERIAL_8250 + depends on SGI_MFD_IOC3 || COMPILE_TEST select SERIAL_8250_EXTENDED select SERIAL_8250_SHARE_IRQ help @@ -403,7 +410,8 @@ config SERIAL_8250_RT288X config SERIAL_8250_OMAP tristate "Support for OMAP internal UART (8250 based driver)" - depends on SERIAL_8250 && (ARCH_OMAP2PLUS || ARCH_K3) + depends on SERIAL_8250 + depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST help If you have a machine based on an Texas Instruments OMAP CPU you can enable its onboard serial ports by enabling this option. @@ -439,7 +447,8 @@ config SERIAL_8250_LPC18XX config SERIAL_8250_MT6577 tristate "Mediatek serial port support" - depends on SERIAL_8250 && ARCH_MEDIATEK + depends on SERIAL_8250 + depends on ARCH_MEDIATEK || COMPILE_TEST help If you have a Mediatek based board and want to use the serial port, say Y to this option. If unsure, say N. @@ -471,11 +480,12 @@ config SERIAL_8250_LPSS select DW_DMAC_PCI if (SERIAL_8250_DMA && X86_INTEL_LPSS) select RATIONAL help - Selecting this option will enable handling of the extra features - present on the UART found on various Intel platforms such as: + Selecting this option will enable handling of the UART found on + various Intel platforms such as: - Intel Baytrail SoC - Intel Braswell SoC - Intel Quark X1000 SoC + that are not covered by the more generic SERIAL_8250_PCI option. config SERIAL_8250_MID tristate "Support for serial ports on Intel MID platforms" @@ -486,20 +496,48 @@ config SERIAL_8250_MID select HSU_DMA_PCI if (HSU_DMA && X86_INTEL_MID) select RATIONAL help - Selecting this option will enable handling of the extra features - present on the UART found on Intel Medfield SOC and various other - Intel platforms. + Selecting this option will enable handling of the UART found on + Intel Medfield SOC and various other Intel platforms that is not + covered by the more generic SERIAL_8250_PCI option. + +config SERIAL_8250_PERICOM + tristate "Support for Pericom and Acces I/O serial ports" + default SERIAL_8250 + depends on SERIAL_8250 && PCI + help + Selecting this option will enable handling of the Pericom and Acces + I/O UARTs that are not covered by the more generic SERIAL_8250_PCI + option. config SERIAL_8250_PXA tristate "PXA serial port support" depends on SERIAL_8250 - depends on ARCH_PXA || ARCH_MMP + depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST help If you have a machine based on an Intel XScale PXA2xx CPU you can enable its onboard serial ports by enabling this option. The option is applicable to both devicetree and legacy boards, and early console is part of its support. +config SERIAL_8250_TEGRA + tristate "8250 support for Tegra serial ports" + default SERIAL_8250 + depends on SERIAL_8250 + depends on ARCH_TEGRA || COMPILE_TEST + help + Select this option if you have machine with an NVIDIA Tegra SoC and + wish to enable 8250 serial driver for the Tegra serial interfaces. + +config SERIAL_8250_BCM7271 + tristate "Broadcom 8250 based serial port" + depends on SERIAL_8250 && (ARCH_BRCMSTB || COMPILE_TEST) + default ARCH_BRCMSTB + help + If you have a Broadcom STB based board and want to use the + enhanced features of the Broadcom 8250 based serial port, + including DMA support and high accuracy BAUD rates, say + Y to this option. If unsure, say N. + config SERIAL_OF_PLATFORM tristate "Devicetree based probing for 8250 ports" depends on SERIAL_8250 && OF |