CONFIG_SERIAL_8250_BCM2835AUX: BCM2835 auxiliar mini UART support

General informations

The Linux kernel configuration item CONFIG_SERIAL_8250_BCM2835AUX:

• prompt: BCM2835 auxiliar mini UART support
• type: tristate
• depends on: ( CONFIG_ARCH_BCM2835 || CONFIG_COMPILE_TEST ) && ( CONFIG_SERIAL_8250 && CONFIG_SERIAL_8250_SHARE_IRQ )
• defined in drivers/tty/serial/8250/Kconfig
• found in Linux kernels: 4.6–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
• modules built: 8250_bcm2835aux

Help text

Support for the BCM2835 auxiliar mini UART.

Features and limitations of the UART are Registers are similar to 16650 registers, set bits in the control registers that are unsupported are ignored and read back as 0 7/8 bit operation with 1 start and 1 stop bit 8 symbols deep fifo for rx and tx SW controlled RTS and SW readable CTS Clock rate derived from system clock Uses 8 times oversampling (compared to 16 times for 16650) Missing break detection (but break generation) Missing framing error detection Missing parity bit Missing receive time-out interrupt Missing DCD, DSR, DTR and RI signals

If unsure, say N.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb acpi "BCM2836" : CONFIG_SERIAL_8250 CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/8250_bcm2835aux.c # in 5.18–5.19, 6.0–6.4
• lkddb acpi "BCM2836" : CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/8250_bcm2835aux.c # in 6.5–6.12, 6.13-rc+HEAD
• lkddb module 8250_bcm2835aux CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/Kconfig : "BCM2835 auxiliar mini UART support" # in 4.6–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD
• lkddb of "" "" "brcm,bcm2835-aux-uart" : CONFIG_SERIAL_8250 CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/8250_bcm2835aux.c # in 4.6–4.20, 5.0–5.19, 6.0–6.4
• lkddb of "" "" "brcm,bcm2835-aux-uart" : CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/8250_bcm2835aux.c # in 6.5–6.12, 6.13-rc+HEAD
• lkddb platform "bcm2835-aux-uart" : CONFIG_SERIAL_8250 CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/8250_bcm2835aux.c # in 4.6–4.20, 5.0–5.19, 6.0–6.4
• lkddb platform "bcm2835-aux-uart" : CONFIG_SERIAL_8250_BCM2835AUX : drivers/tty/serial/8250/8250_bcm2835aux.c # in 6.5–6.12, 6.13-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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