[U-Boot] [PATCH v9 2/2] Odroid-XU3: Add documentation for Odroid-XU3

[Jaehoon Chung <jh80.chung@samsung.com>]

On 11/27/2014 10:21 PM, Hyungwon Hwang wrote:
> This patch adds documentation for Odroid-XU3. This documentation is
> based on that of Odroid (doc/README-odroid) made by Przemyslaw Marczak.
> The documentation includes basic information about boot media layout,
> environment, partition layout, and the instruction to burn the u-boot
> image to boot media.
> 
> Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
> Tested-by: Lukasz Majewski <l.majewski@samsung.com>
> Acked-by: Lukasz Majewski <l.majewski@samsung.com>
> Cc: Minkyu Kang <mk7.kang@samsung.com>
> Cc: Lukasz Majewski <l.majewski@samsung.com>
> ---
> Changes for v6:
> - Newly added
> 
> Changes for v7:
> - Fix several errata in the documentation
> 
> Changes for v8:
> - None
> 
> Changes for v9:
> - Add the new contents to the documentation of Odroid X2/U2, instead of
> making new document for Odorid XU3
> 
>  doc/README.odroid | 46 ++++++++++++++++++++++++++++++----------------
>  1 file changed, 30 insertions(+), 16 deletions(-)
> 
> diff --git a/doc/README.odroid b/doc/README.odroid
> index 25b962b..99693d4 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.

s/Exynos4412/Exynos/ ?

Best Regards,
Jaehoon Chung

> -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
>