From 36be2505d698e506423131d7c53458d297ee5fa3 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 25 Oct 2016 08:48:53 +0200 Subject: [PATCH] serial: i.MX uart: Allow DTE mode in lowlevel code Some consoles must be configured for DTE mode. Allow to set this in lowlevel code. Signed-off-by: Sascha Hauer --- include/serial/imx-uart.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/serial/imx-uart.h b/include/serial/imx-uart.h index 901b26add..b40044ea4 100644 --- a/include/serial/imx-uart.h +++ b/include/serial/imx-uart.h @@ -146,6 +146,15 @@ static inline void imx_uart_setup(void __iomem *uartbase, writel(UCR1_UARTEN, uartbase + UCR1); } +static inline void imx_uart_set_dte(void __iomem *uartbase) +{ + u32 ufcr; + + ufcr = readl(uartbase + UFCR); + ufcr |= UFCR_DCEDTE; + writel(ufcr, uartbase + UFCR); +} + static inline void imx50_uart_setup(void __iomem *uartbase) { imx_uart_setup(uartbase, 66666666);