From 235daa4bf6b6467b5df675dcfe5041b7f62eeae3 Mon Sep 17 00:00:00 2001 From: Julien Viard de Galbert Date: Tue, 20 Feb 2018 11:45:48 +0100 Subject: driver/uart: Introduce a way for mainboard to override the baudrate The rationale is to allow the mainboard to override the default baudrate for instance by sampling GPIOs at boot. A new configuration option is available for mainboards to select this behaviour. It will then have to define the function get_uart_baudrate to return the computed baudrate. Change-Id: I970ee788bf90b9e1a8c6ccdc5eee8029d9af0ecc Signed-off-by: Julien Viard de Galbert Reviewed-on: https://review.coreboot.org/23713 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber --- src/drivers/uart/uart8250mem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/drivers/uart/uart8250mem.c') diff --git a/src/drivers/uart/uart8250mem.c b/src/drivers/uart/uart8250mem.c index 9eb50cb4b1..b73a428b9b 100644 --- a/src/drivers/uart/uart8250mem.c +++ b/src/drivers/uart/uart8250mem.c @@ -119,7 +119,7 @@ void uart_init(int idx) return; unsigned int div; - div = uart_baudrate_divisor(CONFIG_TTYS0_BAUD, + div = uart_baudrate_divisor(get_uart_baudrate(), uart_platform_refclk(), uart_input_clock_divider()); uart8250_mem_init(base, div); } @@ -156,7 +156,7 @@ void uart_fill_lb(void *data) serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE); if (!serial.baseaddr) return; - serial.baud = CONFIG_TTYS0_BAUD; + serial.baud = get_uart_baudrate(); if (IS_ENABLED(CONFIG_DRIVERS_UART_8250MEM_32)) serial.regwidth = sizeof(uint32_t); else -- cgit v1.2.3