diff options
| author | Julien Viard de Galbert <jviarddegalbert@online.net> | 2018-02-20 11:45:48 +0100 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-02-21 16:09:06 +0000 |
| commit | 235daa4bf6b6467b5df675dcfe5041b7f62eeae3 (patch) | |
| tree | 074bc4b58e2da4c7f6fb43c5e7613b08861d5d33 /src/soc/samsung | |
| parent | fa650f5e8c7cd81138b60d09d4a41b5454f03cc1 (diff) | |
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 <jviarddegalbert@online.net>
Reviewed-on: https://review.coreboot.org/23713
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/soc/samsung')
| -rw-r--r-- | src/soc/samsung/exynos5250/uart.c | 4 | ||||
| -rw-r--r-- | src/soc/samsung/exynos5420/uart.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/src/soc/samsung/exynos5250/uart.c b/src/soc/samsung/exynos5250/uart.c index 7ad6cbe6d9..78c72804c9 100644 --- a/src/soc/samsung/exynos5250/uart.c +++ b/src/soc/samsung/exynos5250/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); @@ -191,7 +191,7 @@ 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; lb_add_serial(&serial, data); 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; |