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diff --git a/doc/README.odroid b/doc/README.odroid
index 25b962b..8a004ca 100644
--- a/doc/README.odroid
+++ b/doc/README.odroid
@@ -1,28 +1,39 @@
- U-boot for Odroid X2/U3
+ U-boot for Odroid X2/U3/XU3
========================
1. Summary
==========
-This is a quick instruction for setup Odroid boards based on Exynos4412.
-Board config: odroid_config
+This is a quick instruction for setup Odroid boards.
+Board config: odroid_config for X2/U3
+Board config: odroid-xu3_config for XU3
2. Supported devices
====================
-This U-BOOT config can be used on two boards:
+This U-BOOT config can be used on three boards:
- Odroid U3
- Odroid X2
with CPU Exynos 4412 rev 2.0 and 2GB of RAM
+- Odroid XU3
+with CPU Exynos5422 and 2GB of RAM
3. Boot sequence
================
iROM->BL1->(BL2 + TrustZone)->U-BOOT
-This version of U-BOOT doesn't implement SPL but it is required(BL2)
-and can be found in "boot.tar.gz" from here:
+This version of U-BOOT doesn't implement SPL. So, BL1, BL2, and TrustZone
+binaries are needed to boot up.
+
+<< X2/U3 >>
+It can be found in "boot.tar.gz" from here:
http://dev.odroid.com/projects/4412boot/wiki/FrontPage?action=download&value=boot.tar.gz
or here:
http://odroid.in/guides/ubuntu-lfs/boot.tar.gz
+<< XU3 >>
+It can be downloaded from:
+https://github.com/hardkernel/u-boot/tree/odroidxu3-v2012.07/sd_fuse/hardkernel
+
+
4. Boot media layout
====================
The table below shows SD/eMMC cards layout for U-boot.
@@ -35,18 +46,20 @@ The block offset is starting from 0 and the block size is 512B.
| Bl2 | 31 | 30 | 1 (boot) |
| U-boot | 63 | 62 | 1 (boot) |
| Tzsw | 2111 | 2110 | 1 (boot) |
-| Uboot Env | 2500 | 2500 | 0 (user) |
+| Uboot Env | 2560 | 2560 | 0 (user) |
-------------------------------------
5. Prepare the SD boot card - with SD card reader
=================================================
To prepare bootable media you need boot binaries provided by hardkernel.
-File "boot.tar.gz" (link in point 3.) contains:
-- E4412_S.bl1.HardKernel.bin
-- E4412_S.tzsw.signed.bin
-- bl2.signed.bin
+From the downloaded files, You can find:
+- bl1.bin
+- tzsw.bin
+- bl2.bin
- sd_fusing.sh
- u-boot.bin
+(The file names can be slightly different, but you can distinguish what they are
+without problem)
This is all you need to boot this board. But if you want to use your custom
u-boot then you need to change u-boot.bin with your own u-boot binary*
@@ -56,7 +69,7 @@ and run the script "sd_fusing.sh" - this script is valid only for SD card.
The proper binary file of current U-boot is u-boot-dtb.bin.
quick steps for Linux:
-- extract boot.tar.gz
+- Download all files from the link at point 3 and extract it if needed.
- put any SD card into the SD reader
- check the device with "dmesg"
- run ./sd_fusing.sh /dev/sdX - where X is SD card device (but not a partition)
@@ -66,7 +79,7 @@ Check if Hardkernel U-boot is booting, and next do the same with your U-boot.
with a eMMC card reader (boot from eMMC card slot)
=====================================================
To boot the device from the eMMC slot you should use a special card reader
-which supports eMMC partiion switch. All of the boot binaries are stored
+which supports eMMC partition switch. All of the boot binaries are stored
on the eMMC boot partition which is normally hidden.
The "sd_fusing.sh" script can be used after updating offsets of binaries
@@ -81,8 +94,8 @@ But then the device can boot only from the SD card slot.
8. Prepare the boot media using Hardkernel U-boot
=================================================
-You can update the U-boot to the custom one if you have an working bootloader
-delivered with the board on a eMMC/SD card. Then follow the steps:
+You can update the U-boot to the custom one if you have a working bootloader
+delivered with the board on the eMMC/SD card. Then follow the steps:
- install the android fastboot tool
- connect a micro usb cable to the board
- on the U-boot prompt, run command: fastboot (as a root)
@@ -91,7 +104,7 @@ delivered with the board on a eMMC/SD card. Then follow the steps:
9. Partition layout
====================
-Default U-boot environment is setup for fixed partiion layout.
+Default U-boot environment is setup for fixed partition layout.
Partition table: MSDOS. Disk layout and files as listed in the table below.
----- ------ ------ ------ -------- ---------------------------------
@@ -106,6 +119,7 @@ Partition table: MSDOS. Disk layout and files as listed in the table below.
Supported fdt files are:
- exynos4412-odroidx2.dtb
- exynos4412-odroidu3.dtb
+- exynos5422-odroidxu3.dtb
Supported kernel files are:
- Image.itb
@@ -144,6 +158,7 @@ And the boot sequence is:
11. USB host support
====================
+NOTE: This section is only for Odroid X2/U3.
The ethernet can be accessed after starting the USB subsystem in U-Boot.
The adapter does not come with a preconfigured MAC address, and hence it needs