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From: Fabio Estevam <festevam@gmail.com>
To: eugen.hristev@linaro.org
Cc: u-boot@lists.denx.de, trini@konsulko.com,
	Fabio Estevam <festevam@denx.de>
Subject: [PATCH] board: atmel: sama5d2_wlsom1_ek: Fix spurious serial output
Date: Thu,  3 Apr 2025 23:36:42 -0300	[thread overview]
Message-ID: <20250404023642.3793338-1-festevam@gmail.com> (raw)

From: Fabio Estevam <festevam@denx.de>

Currently, there are always some spurious characters showing up
right before SPL banner is shown:

RomBOOT
���=������
U-Boot SPL 2025.04-rc5-00023-g9ed4e2c45f25 (Apr 03 2025 - 23:23:17 -0300)
Trying to boot from MMC1

<debug_uart>
...

Fix this problem by removing the redundant UART iomux and clock
initialization from the board code, as they are handled by DM code.

Signed-off-by: Fabio Estevam <festevam@denx.de>
---
 board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c b/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c
index 04de1257eca0..a0ecc4f42a90 100644
--- a/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c
+++ b/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c
@@ -41,17 +41,8 @@ int board_late_init(void)
 #endif
 
 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
-static void board_uart0_hw_init(void)
-{
-	atmel_pio4_set_c_periph(AT91_PIO_PORTB, 26, ATMEL_PIO_PUEN_MASK);	/* URXD0 */
-	atmel_pio4_set_c_periph(AT91_PIO_PORTB, 27, 0);				/* UTXD0 */
-
-	at91_periph_clk_enable(ATMEL_ID_UART0);
-}
-
 void board_debug_uart_init(void)
 {
-	board_uart0_hw_init();
 }
 #endif
 
-- 
2.34.1


             reply	other threads:[~2025-04-04  2:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-04  2:36 Fabio Estevam [this message]
2025-04-04  7:03 ` [PATCH] board: atmel: sama5d2_wlsom1_ek: Fix spurious serial output Eugen Hristev

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