Rugged board A5D2x

Rugged board is made using microchip SoC (SAMA5d27x).

Documents:

Rugged Board data : here

SoC : sama5d2x : Details: here Datasheet: here

How to make arm hardware (rugged board) ?

Rugged board makes with

microchip SoC sama5d2x + (PMIC & ext RAM & NOR flash) + ext periperals(eth,usb,expansion card,etc)

Name	name	features	docs
SoC	sama5d2x		ref
SoM	phycore-a5d2x		ref
SBC	rugged board a5d2x		ref

SoC

Block diagram: SAM A5d2x (microchip)

sama5d2x

SoM

Block diagram: phycore-a5d2x

SBC

Block diagram: Ruggedboard a5d2x

rugged board a5d2x

Rugged image:

Boot Process: rugged Board a5d2x

• Power on Board

• Boot ROM

• SPL (bootstap=boot.bin)

• PBL (u-boot=u-boot.bin)

• kernel (linux=zImage)

• rootfs

	For Rugged board a5d2x
Power on Board
Boot ROM	BOOTROM code (in SROM of SoC) will excute in SRAM
	bootrom code will find PL from sdcard|NAND|NOR using bootconfig pins
	bootrom code will load PL to SRAM
bootstrap	PL will intialize your ext RAM and loads SL to ext RAM
u-boot	u-boot loads kernel
kernel	kernel loads rootfs to ext ram
rootfs	rootfs runs in ext ram and start init process that can run other services

#for more info click here reference

Board Flashing images

1. How to flash images using SD Card

• make sd card 2 partitions (boot, rootfs) reference

• download pre compile images link

• copy images to sdcard

make sdcard partition

1. See reference video

copy to sdcard

copy boot.bin u-boot.bin zImage a5d2x-rugged_board.dtb to sdcard boot part and extraxt rootfs to rootfs part in sdcard.

$ cp boot.bin u-boot.bin zImage a5d2x-rugged_board.dtb /media/$USER/boot

$ tar -xvf core-image-minimal-sama5d27-som1-ek-sd-spidev.tar.gz /media/$USER/rootfs

test on board

connect sd card to board and press reset button.check log in minicom

For reference vedio click here.

2. How to flash images using "NOR flash"

• make sd card 2 partitions (boot, root)

• download pre compile images & copy images to sdcard

• use below commands to flash images from sdcard to NOR flash

make sdcard partition

1. SDCARD Partition Reference video

2. Click here to Download images and copy images to sdcard

$ cd RBNR-20.0.0
$ cp boot.bin qspi_boot.bin
$ cp u-boot.bin qspi_u-boot.bin
$ cp qspi_boot.bin qspi_u-boot.bin /media/$USER/boot
$ sync
$ umount /media/$USER/boot

3. Flashing on Board

on board flash to NOR

connect sdcard to board -> Open minicom -> prese Reset button -> Press any KEY to stop boot at bootloader.

# boot.bin flash to NOR

sf probe
fatload mmc 1 0x22000000 qboot.bin
sf erase 0x0 0x10000
sf write 0x22000000 0x0 0x10000

# u-boot.bin flash to NOR

sf probe
fatload mmc 1 0x21FF0000 qu-boot.bin
sf erase 0x20000 0x80000
sf write 0x21FF0000 0x20000 0x80000

Now Remove the sdcard from the Rugged Board A5d2x sdcard slot and reset the board. See reference image

See reference video link here

Compile BSP sources

Install Dependency packages in ubuntu 16.04 +

run below command in your ubuntu terminal.

sudo apt-get update
sudo apt-get -y install git-core flex bison gperf zip zlib1g-dev build-essential gettext texinfo
sudo apt-get -y install  fakeroot gnupg libsdl1.2-dev squashfs-tools u-boot-tools expect libncurses5-dev
sudo apt-get -y install minicom lrzsz tftpd-hpa nfs-kernel-server nfs-common portmap patch vim gawk libncursesw5-dev
sudo apt-get -y install xinetd tftpd tftp ctags quilt

1. ARM Toolchain setup

$ mkdir yoctotutor
$ mkdir yoctotutor/toolchain
$ cd yoctotutor/toolchain

$ cd toolchain
$ wget https://files.linux4sam.org/pub/demo/yocto-sdk/poky-atmel-glibc-x86_64-microchip-headless-image-cortexa5t2hf-neon-vfpv4-sama5d27-wlsom1-ek-sd-toolchain-3.1.4.sh
$ chmod 777 poky-atmel-glibc-x86_64-microchip-headless-image-cortexa5t2hf-neon-vfpv4-sama5d27-wlsom1-ek-sd-toolchain-3.1.4.sh
$ ./poky-atmel-glibc-x86_64-microchip-headless-image-cortexa5t2hf-neon-vfpv4-sama5d27-wlsom1-ek-sd-toolchain-3.1.4.sh
        # press "." to install sdk in current directory
$ source environment-setup-cortexa5t2hf-neon-vfpv4-poky-linux-gnueabi

2. at91Bootstrap Compilation

Don't Forget to run Toolchain env before compiling

Download & compile

### Download at91bootstrap source ###

$ cd ~/yoctotutor
$ git clone https://github.com/rugged-board/at91bootstrap-rba5d2x.git
$ cd at91bootstrap-rba5d2x
$ git checkout origin/at91bootstrap-rba5d2x_v3.8.12

### Compilation ###

$ cd at91bootstrap-rba5d2x
$ source ~/yoctotutor/toolchain/environment-setup-cortexa5t2hf-neon-vfpv4-poky-linux-gnueabi
$ make mrproper
$ make rugged_board_a5d2xsd1_uboot_defconfig       # For SDCARD 
                or
$ make rugged_board_a5d2xqspi_uboot_defconfig      # For NOR Flash
$ make

$ ls binaries/                # boot.bin is output

output boot.bin is created in binaries/ dir

For Testing images click sdcard image | NOR image

3. U-boot Compilation

Don't Forget to run Toolchain env before compiling

Download U-Boot

### Download U-boot source ###

cd ~/yoctotutor
git clone https://github.com/rugged-board/uboot-rba5d2x.git
cd uboot-rba5d2x
git checkout uboot-rba5d2x

### Compile ###

$ cd ~/yoctotutor/uboot-rba5d2x
$ source ~/yoctotutor/toolchain/environment-setup-cortexa5t2hf-neon-vfpv4-poky-linux-gnueabi
$ make mrproper
$ make rugged_board_a5d2x_mmc1_defconfig                # for SDCARD
                or
$ make rugged_board_a5d2x_qspiflash_defconfig           # for NOR Flash
$ make -j4

For Testing images click sdcard image | NOR image

4. Linux Kernel Compilation

step-1: download Linux kernel

Download Linux

### download linux ###

$ cd ~/yoctotutor
$ git clone https://github.com/rugged-board/linux-rba5d2x.git
$ cd linux-rba5d2x
$ git checkout origin/linux-rba5d2x

### Compile Linux ###

$ cd ~/yoctotutor/linux-rba5d2x
$ source ~/yoctotutor/toolchain/environment-setup-cortexa5t2hf-neon-vfpv4-poky-linux-gnueabi
$ make mrproper
$ make rb_a5d2x_defconfig
$ make -j4

Copy zimage and 5d2x-rugged_board.dtb to sdcard. zImage: arch/arm/boot/zImage oftree: arch/arm/boot/dts/a5d2x-rugged_board.dtb

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Advanced Topics

Device tree and Device driver api and application

GPIO

click here

I2C

click here

SPI