# SiFive Freedom UART configuration option # Copyright (c) 2017 Jean-Paul Etienne # SPDX-License-Identifier: Apache-2.0 menuconfig UART_SIFIVE bool "SiFive Freedom serial driver" depends on SOC_SERIES_RISCV_SIFIVE_FREEDOM select SERIAL_HAS_DRIVER select SERIAL_SUPPORT_INTERRUPT help This option enables the SiFive Freedom serial driver. # ---------- Port 0 ---------- menuconfig UART_SIFIVE_PORT_0 bool "SIFIVE Port 0" depends on UART_SIFIVE help This tells the driver to configure the UART port at boot, depending on the additional configure options below. config UART_SIFIVE_PORT_0_RXCNT_IRQ int "Port 0 RX Interrupt Threshold Count" default 0 depends on UART_SIFIVE_PORT_0 help Port 0 RX Threshold at which the RX FIFO interrupt triggers. config UART_SIFIVE_PORT_0_TXCNT_IRQ int "Port 0 TX Interrupt Threshold Count" default 1 depends on UART_SIFIVE_PORT_0 help Port 0 TX Threshold at which the TX FIFO interrupt triggers. # ---------- Port 1 ---------- menuconfig UART_SIFIVE_PORT_1 bool "SIFIVE Port 1" depends on UART_SIFIVE help This tells the driver to configure the UART port at boot, depending on the additional configure options below. config UART_SIFIVE_PORT_1_RXCNT_IRQ int "Port 0 RX Interrupt Threshold Count" default 0 depends on UART_SIFIVE_PORT_1 help Port 1 RX Threshold at which the RX FIFO interrupt triggers. config UART_SIFIVE_PORT_1_TXCNT_IRQ int "Port 1 TX Interrupt Threshold Count" default 1 depends on UART_SIFIVE_PORT_1 help Port 1 TX Threshold at which the TX FIFO interrupt triggers.