| Flashing the NAND using SAM-BA |
| ============================== |
| |
| This document explains how to flash a basic Buildroot system on various |
| Atmel boards. Additional details can |
| also be found on the Linux4SAM website, in particular here: |
| http://www.at91.com/linux4sam/bin/view/Linux4SAM/GettingStarted |
| |
| This guide covers the following configurations: |
| - at91sam9g45m10ek_defconfig |
| - at91sam9rlek_defconfig |
| - at91sam9x5ek_defconfig (at91sam9g15, at91sam9g25, at91sam9x25, |
| at91sam9g35 and at91sam9x35) |
| - atmel_sama5d3xek_defconfig (sama5d31, sama5d33, sama5d34, sama5d35, |
| sama5d36) |
| - atmel_sama5d3_xplained_defconfig |
| - atmel_sama5d4ek_defconfig |
| - atmel_sama5d4_xplained_defconfig |
| |
| These configurations will use AT91Bootstrap, u-boot and a linux kernel from |
| the git trees maintained by Atmel. They also build u-boot SPL when |
| available, it can replace AT91Bootstrap. |
| |
| |
| Configuring and building Buildroot |
| ---------------------------------- |
| |
| make <board>_defconfig |
| make |
| |
| |
| Flashing the board |
| ------------------ |
| |
| Connect the board: |
| o at91sam9g45m10ek: DBGU: J10, USB sam-ba: J14 |
| o at91sam9rlek: DBGU: J19, USB sam-ba: J21 |
| o at91sam9x5ek: DBGU: J11, USB sam-ba: J20 |
| o sama5d3xek: DBGU: J14, USB sam-ba: J20 |
| o sama5d3 Xplained: DBGU: J23, USB sam-ba: J6 |
| o sama5d4ek: DBGU: J22 or J24, USB sam-ba: J1 |
| o sama5d4 Xplained: DBGU: J1, USB sam-ba: J11 |
| |
| Start the board in RomBOOT: |
| o at91sam9g45m10ek: |
| 1. open JP8, JP10 and JP12 |
| 2. start the board |
| 3. close JP8, JP10 and JP12 |
| |
| o at91sam9rlek: |
| 1. J11 on 1-2 (BMS=1), open J12 and J13 |
| 2. start the board |
| 3. close J12 and J13 |
| |
| o at91sam9x5ek: |
| 1. open JP9 and: |
| - Cogent: open *NCS jumper |
| - Embest: open SW1 |
| - Ronetix: open J1 and J2 |
| 2. start the board |
| 3. close JP9 and: |
| - Cogent: close *NCS jumper |
| - Embest: close SW1 (ON position) |
| - Ronetix: close J1 and J2 |
| |
| o sama5d3xek: |
| 1. start the board |
| 2. push BP4 and BP1 |
| 3. release BP1 |
| 4. release BP4 |
| |
| o sama5d3 Xplained: |
| 1. open JP5 (NANDCS) and JP6 (SPICS) |
| 2. start the board |
| 3. close JP5 ans JP6 |
| |
| o sama5d4ek: |
| 1. start the board |
| 2. push BP3 and BP4 |
| 3. release BP4 |
| 4. release BP3 |
| |
| o sama5d4 Xplained: |
| 1. close JP7 (BOOT_DIS) |
| 2. start the board |
| 3. open JP7 |
| |
| "RomBOOT" should appear on your console (this should be ttyUSBx or ttyACMx) |
| |
| Now locate the USB sam-ba interface it should be ttyACMx, usually ttyACM0 |
| dmesg on your machine should give: |
| usb 1-2.1.4: New USB device found, idVendor=03eb, idProduct=6124 |
| usb 1-2.1.4: New USB device strings: Mfr=0, Product=0, SerialNumber=0 |
| cdc_acm 1-2.1.4:1.0: ttyACM0: USB ACM device |
| |
| Look for idVendor=03eb, idProduct=6124, this is the interface you want to use. |
| |
| You can then flash the board using the provided flasher.sh script in board/atmel: |
| |
| board/atmel/flasher.sh <builddir_path> <interface> <board> |
| |
| For example, for an out of tree build made in |
| /tmp/atmel_sama5d3_xplained/ for the sama5d3 Xplained, you would use: |
| board/atmel/flasher.sh /tmp/atmel_sama5d3_xplained/ /dev/ttyACM0 sama5d3_xplained |
| |
| Reboot, the system should boot up to the buildroot login invite. |
| |
