From 8b5f9415dc0c2166441b9f8ffb554206d2272a22 Mon Sep 17 00:00:00 2001
From: aiminick <aiminick@openfans.org>
Date: Mon, 24 May 2021 00:04:47 +0800
Subject: [PATCH] Update uboot.md

---
 docs/uboot.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/docs/uboot.md b/docs/uboot.md
index aa827b9..ae1923b 100644
--- a/docs/uboot.md
+++ b/docs/uboot.md
@@ -8,8 +8,27 @@ make rpi_4_defconfig
 make -j X
 ```
 
+
+#### vim boot.scr
+
+```
+fdt addr ${fdt_addr} && fdt get value bootargs /chosen bootargs
+fatload mmc 0:1 ${kernel_addr_r} kernel8.img
+booti ${kernel_addr_r} - ${fdt_addr}
+```
+
+```
+./tools/mkimage -A arm64 -T script -C none -n "Boot script" -d boot.scr boot.scr.uimg
+cp  u-boot.bin   /boot/
+cp  boot.scr.uimg  /boot/
+cd /boot/
+vim config.txt
+```
+
 #### config.txt
 
+**add:**
+
 ```
 kernel=u-boot.bin
 kernel_address=Ox00080000
@@ -18,3 +37,5 @@ enable_uart=1
 uart_2ndstage=1
 enable_gic=1
 ```
+
+PS: **kernel=kernel8.img** change to **kernel=u-boot.bin**