From 03ada50f4e3993fc9e3d4c17e952f12bb67d7d98 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Tue, 27 Aug 2019 00:50:13 +0800
Subject: [PATCH] add AT91 GPIO AND spi library

---
 README.md |   33 ++++++++++++++++++++++++++++++++-
 1 files changed, 32 insertions(+), 1 deletions(-)

diff --git a/README.md b/README.md
index 4132329..dda90a9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,35 @@
 ## sama5d4
 
-SAMA5D4 Xplained Ultra Board BSP
+SAMA5D4 Xplained Ultra Board and BSP Official Reference:
+  https://www.at91.com/linux4sam/bin/view/Linux4SAM/Sama5d4XplainedMainPage
+
+Linux4SAM Home:
+  https://www.at91.com/linux4sam/bin/view/Linux4SAM/WebHome
+
+Linux4SAM Github Repositories:
+  https://github.com/linux4sam/
+
+Linux4SAM Linux Kernel ChangeLog: 
+  https://www.at91.com/linux4sam/bin/view/Linux4SAM/LinuxKernel
+
+Linux4SAM BBS:
+  http://www.at91.com/
+
+
+Linux BSP Features:
+1, Linux kernel builtin driver support MT7601/RT5370 and stand-alone driver support RTL8188EU 
+   both RT5370 and RTL8188EU can support AP/Station mode, but MT7601 only support Station mode;
+
+2, Linux Kernel add patches from libkcapi library v1.1.5 to support UserSpace to allow user space 
+   to utilize the kernel crypto API.
+
+   Linux Kernel Crypto API:
+      https://www.kernel.org/doc/html/latest/crypto/index.html
+      https://www.kernel.org/doc/html/latest/crypto/userspace-if.html
+
+   libkcapi github:
+      https://github.com/smuellerDD/libkcapi
+
+3, Linux Kernel add NXP PN5180 NFC chipset bal driver support, source code from:
+     https://github.com/NXPNFCLinux/nxprdlib-kernel-bal
 

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