From 98629e0be7b39f9b9f311325e0f8351d4c35f31d Mon Sep 17 00:00:00 2001
From: Huaqi Fang <578567190@qq.com>
Date: Mon, 22 Mar 2021 12:43:02 +0800
Subject: [PATCH] doc: Update usage for spmp case

Signed-off-by: Huaqi Fang <578567190@qq.com>
---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 29e46d8..9bbd5cc 100644
--- a/README.md
+++ b/README.md
@@ -769,9 +769,9 @@ To basically port this SDK to match your target, you need at least to change the
 * *conf/uboot.cmd*: Change to match your memory map.
 * *Makefile*: Change *$(uboot_mkimage)* command line run for *$(boot_uimage_lz4)* target
 
-## Notice
-
-This repo is based on opensource repo https://github.com/sifive/freedom-u-sdk/tree/archive/buildroot
+> If you have enabled TEE feature(sPMP module included), you need to configure spmp csr registers
+> as this commit https://github.com/Nuclei-Software/opensbi/commit/1d28050d01b93b6afe590487324b663c65a2c429 .
+> Then you will be able to boot up linux kernel, otherwise the init process will fail.
 
 ## Known issues and FAQs