From ab37facd465b76ac1993d4c5b20100bdc5038aab Mon Sep 17 00:00:00 2001
From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Date: Thu, 27 Jan 2022 02:50:28 +0100
Subject: [PATCH] doc: describe MSEL settings for booting from SD card

unmatched.rst describes booting from SD card or from SPI. But only for
booting from SPI the boot selection settings are described.

Add the missing information.

Fix a typo 'uSD'.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---
 doc/board/sifive/unmatched.rst | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/doc/board/sifive/unmatched.rst b/doc/board/sifive/unmatched.rst
index b52a1f690c..24a889991c 100644
--- a/doc/board/sifive/unmatched.rst
+++ b/doc/board/sifive/unmatched.rst
@@ -20,8 +20,11 @@ The support for following drivers are already enabled:
 4. SiFive SPI Driver.
 5. MMC SPI Driver for MMC/SD support.
 
-Booting from uSD using U-Boot SPL
----------------------------------
+Booting from micro SD card using U-Boot SPL
+-------------------------------------------
+
+Booting from an SD card requires that the boot mode selection DIP switches
+MSEL[3:0] are set to 1011.
 
 Building
 --------
-- 
2.39.5