[PATCH 1/1] doc: qemu-riscv: describe CONFIG_DEBUG_SBI_CONSOLE

[Heinrich Schuchardt]

In main U-Boot the SBI DBCN extension can be used to supply a debug
console.

Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com>
---
 doc/board/emulation/qemu-riscv.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/board/emulation/qemu-riscv.rst 
b/doc/board/emulation/qemu-riscv.rst
index 8a5eb1eda56..8388e13d96d 100644
--- a/doc/board/emulation/qemu-riscv.rst
+++ b/doc/board/emulation/qemu-riscv.rst
@@ -171,3 +171,8 @@ The following settings provide a debug UART for the virt 
machine::
     CONFIG_DEBUG_UART_NS16550=y
     CONFIG_DEBUG_UART_BASE=0x10000000
     CONFIG_DEBUG_UART_CLOCK=3686400
+
+To provide a debug UART in main U-Boot the SBI DBCN extension can be used
+instead::
+
+    CONFIG_DEBUG_SBI_CONSOLE=y
-- 
2.45.2