[PATCH] ARM: virt: add DEBUG_LL support

[PATCH] ARM: virt: add DEBUG_LL support

[Ahmad Fatoum]

Both Virt and Vexpress have a PL011 serial console as default console,
but they place it at different addresses. Add a new DEBUG_QEMU_ARM32_VIRT
config option to be able to use DEBUG_LL on 32-bit Virt as well.

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 arch/arm/include/asm/debug_ll.h  | 3 ++-
 common/Kconfig.debug_ll          | 4 ++++
 include/mach/vexpress/debug_ll.h | 4 ++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/debug_ll.h b/arch/arm/include/asm/debug_ll.h
index bac0b2106936..fd7715c7434b 100644
--- a/arch/arm/include/asm/debug_ll.h
+++ b/arch/arm/include/asm/debug_ll.h
@@ -23,7 +23,8 @@
 #include <mach/stm32mp/debug_ll.h>
 #endif
 
-#ifdef CONFIG_DEBUG_VEXPRESS_UART
+#if defined(CONFIG_DEBUG_VEXPRESS_UART) || \
+    defined(CONFIG_DEBUG_QEMU_ARM32_VIRT)
 #include <mach/vexpress/debug_ll.h>
 #endif
 
diff --git a/common/Kconfig.debug_ll b/common/Kconfig.debug_ll
index e8be2842525f..a08d29859d27 100644
--- a/common/Kconfig.debug_ll
+++ b/common/Kconfig.debug_ll
@@ -352,6 +352,10 @@ config DEBUG_AM62X_UART
 	bool "Texas Instruments AM62X debug UART"
 	depends on ARCH_K3
 
+config DEBUG_QEMU_ARM32_VIRT
+	bool "QEMU ARM32 Virt PL011 console"
+	depends on MACH_VIRT
+
 config DEBUG_QEMU_ARM64_VIRT
 	bool "QEMU ARM64 Virt PL011 console"
 	depends on ARCH_ARM64_VIRT
diff --git a/include/mach/vexpress/debug_ll.h b/include/mach/vexpress/debug_ll.h
index 3d67e7645d33..936abf1063ce 100644
--- a/include/mach/vexpress/debug_ll.h
+++ b/include/mach/vexpress/debug_ll.h
@@ -7,7 +7,11 @@
 #ifndef __MACH_VEXPRESS_DEBUG_LL_H__
 #define   __MACH_VEXPRESS_DEBUG_LL_H__
 
+#ifdef CONFIG_DEBUG_QEMU_ARM32_VIRT
+#define DEBUG_LL_UART_ADDR 0x9000000
+#else
 #define DEBUG_LL_UART_ADDR 0x1c090000
+#endif
 
 #include <debug_ll/pl011.h>
 
-- 
2.47.3

Re: [PATCH] ARM: virt: add DEBUG_LL support

[Sascha Hauer]

On Mon, 05 Jan 2026 09:37:44 +0100, Ahmad Fatoum wrote:
> Both Virt and Vexpress have a PL011 serial console as default console,
> but they place it at different addresses. Add a new DEBUG_QEMU_ARM32_VIRT
> config option to be able to use DEBUG_LL on 32-bit Virt as well.
> 
> 

Applied, thanks!

[1/1] ARM: virt: add DEBUG_LL support
      https://git.pengutronix.de/cgit/barebox/commit/?id=88a8699f5a26 (link may not be stable)

Best regards,
-- 
Sascha Hauer <s.hauer@pengutronix.de>