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/soc/samsung/exynos5420/uart.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/soc/samsung/exynos5420') diff --git a/src/soc/samsung/exynos5420/uart.c b/src/soc/samsung/exynos5420/uart.c index a38be07d13..146151ee5b 100644 --- a/src/soc/samsung/exynos5420/uart.c +++ b/src/soc/samsung/exynos5420/uart.c @@ -61,7 +61,7 @@ static void serial_setbrg_dev(struct s5p_uart *uart) // All UARTs share the same clock. uclk = clock_get_periph_rate(PERIPH_ID_UART3); - val = uclk / CONFIG_TTYS0_BAUD; + val = uclk / get_uart_baudrate(); write32(&uart->ubrdiv, val / 16 - 1); @@ -182,7 +182,7 @@ void uart_fill_lb(void *data) struct lb_serial serial; serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED; serial.baseaddr = uart_platform_base(CONFIG_UART_FOR_CONSOLE); - serial.baud = CONFIG_TTYS0_BAUD; + serial.baud = get_uart_baudrate(); serial.regwidth = 4; serial.input_hertz = uart_platform_refclk(); serial.uart_pci_addr = 0; -- cgit v1.2.3