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authorJulien Viard de Galbert <jviarddegalbert@online.net>2018-02-20 11:45:48 +0100
committerMartin Roth <martinroth@google.com>2018-02-21 16:09:06 +0000
commit235daa4bf6b6467b5df675dcfe5041b7f62eeae3 (patch)
tree074bc4b58e2da4c7f6fb43c5e7613b08861d5d33 /src/cpu/ti/am335x
parentfa650f5e8c7cd81138b60d09d4a41b5454f03cc1 (diff)
downloadcoreboot-235daa4bf6b6467b5df675dcfe5041b7f62eeae3.tar.xz
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/cpu/ti/am335x')
-rw-r--r--src/cpu/ti/am335x/uart.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cpu/ti/am335x/uart.c b/src/cpu/ti/am335x/uart.c
index 47b9a3d5cd..38a13ac268 100644
--- a/src/cpu/ti/am335x/uart.c
+++ b/src/cpu/ti/am335x/uart.c
@@ -163,7 +163,7 @@ void uart_init(int idx)
{
struct am335x_uart *uart = uart_platform_baseptr(idx);
uint16_t div = (uint16_t) uart_baudrate_divisor(
- CONFIG_TTYS0_BAUD, uart_platform_refclk(), 16);
+ get_uart_baudrate(), uart_platform_refclk(), 16);
am335x_uart_init(uart, div);
}
@@ -189,7 +189,7 @@ 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 = 2;
lb_add_serial(&serial, data);