linux-kernel - [PATCH 1/2] ARM: debug: at91: add UART0 for sama5d2 DEBUG

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Message-ID: <20250905094113.27480-1-nicolas.ferre@microchip.com>
Date: Fri, 5 Sep 2025 11:41:11 +0200
From: <nicolas.ferre@...rochip.com>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>, Claudiu Beznea
	<claudiu.beznea@...on.dev>
CC: Ryan Wanner <ryan.wanner@...rochip.com>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, Nicolas Ferre
	<nicolas.ferre@...rochip.com>
Subject: [PATCH 1/2] ARM: debug: at91: add UART0 for sama5d2 DEBUG_LL

From: Nicolas Ferre <nicolas.ferre@...rochip.com>

Add the UART0 that is by default console on some boards
like the SAMA5D29-Curiosity.

Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
---
 arch/arm/Kconfig.debug | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 366f162e147d..c941adbc850b 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -174,6 +174,14 @@ choice
 		    at91sam9263, at91sam9g45, at91sam9m10,
 		    sama5d3
 
+	config DEBUG_AT91_SAMA5D2_UART0
+		bool "Kernel low-level debugging on SAMA5D2 UART0"
+		select DEBUG_AT91_UART
+		depends on SOC_SAMA5D2
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on the UART0 port of sama5d2.
+
 	config DEBUG_AT91_SAMA5D2_UART1
 		bool "Kernel low-level debugging on SAMA5D2 UART1"
 		select DEBUG_AT91_UART
@@ -1635,6 +1643,7 @@ config DEBUG_UART_PHYS
 	default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
 	default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
 	default 0xf7fc9000 if DEBUG_BERLIN_UART
+	default 0xf801c000 if DEBUG_AT91_SAMA5D2_UART0
 	default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1
 	default 0xf8b00000 if DEBUG_HIX5HD2_UART
 	default 0xf991e000 if DEBUG_QCOM_UARTDM
@@ -1707,6 +1716,7 @@ config DEBUG_UART_VIRT
 	default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
 	default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
 	default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
+	default 0xf701c000 if DEBUG_AT91_SAMA5D2_UART0
 	default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1
 	default 0xf7fc9000 if DEBUG_BERLIN_UART
 	default 0xf8007000 if DEBUG_HIP04_UART
-- 
2.43.0