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serial: a37xx: Use CONFIG_BAUDRATE for initializing early debug UART

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CONFIG_BAUDRATE should be used for setting the baudrate for the early debug
UART. This replaces current hardcoded 115200 value.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár
2021-07-26 14:58:58 +02:00
committed by Stefan Roese
parent 46e08f7ce6
commit 5cd424d71f
1 changed files with 2 additions and 3 deletions
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5
drivers/serial/serial_mvebu_a3700.c
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@@ -309,7 +309,7 @@ U_BOOT_DRIVER(serial_mvebu) = {
static inline void _debug_uart_init(void)
{
void __iomem *base = (void __iomem *)CONFIG_DEBUG_UART_BASE;
u32 baudrate, parent_rate, divider;
u32 parent_rate, divider;
/* reset FIFOs */
writel(UART_CTRL_RXFIFO_RESET | UART_CTRL_TXFIFO_RESET,
@@ -322,9 +322,8 @@ static inline void _debug_uart_init(void)
* Calculate divider
* baudrate = clock / 16 / divider
*/
baudrate = 115200;
parent_rate = get_ref_clk() * 1000000;
divider = DIV_ROUND_CLOSEST(parent_rate, baudrate * 16);
divider = DIV_ROUND_CLOSEST(parent_rate, CONFIG_BAUDRATE * 16);
writel(divider, base + UART_BAUD_REG);
/*