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[FAQ] 66AK2H12: U-Boot flash for K2HK family devices

Part Number: 66AK2H12

How to flash / update U-Boot using TFTP from U-Boot console / terminal foe K2HK family devices ? 

  • For flashing U-Boot, following pre-requisite needs to be done.

    1. Build U-Boot by following this FAQ - https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1115842/faq-66ak2h12-evmk2h-u-boot-build

    Now, Kindly follow the steps.

    Connection details:

    ==============

    1. Connect through "Serial terminal" with following serial settings
      1. Baud rate : 115200
      2. Data bit    : 8
      3. Stop bit    : 1
      4. Parity       : None
      5. Flow control : None

    Connect Ethernet cable too.

    And, now U-boot runs on the RAM and flash it to the NOR memory by giving the following commands sequentially in the mentioned order (Also give commands either DHCP or static IP, do not give both commands)

    //Load default environment variables
    # env default -f -a
    
    //If device(EVM) IP address is set through dhcp 
    # setenv autoload no
    # dhcp
    
    //If device(EVM) IP address has to be set manually
    # setenv ipaddr 192.168.2.250
    # setenv gatewayip 192.168.2.1
    # setenv netmask 255.255.255.0
    
    //set tftp serer ip
    # setenv serverip 192.168.2.252
    
    //set name_uboot to file name "u-boot-spi.gph"
    # setenv name_uboot u-boot-spi.gph
    
    # saveenv							//make local variables into environment variables
    
    # ping ${serverip}
    
    # tftp ${loadaddr} ${serverip}:${name_uboot}
    
    # run burn_uboot_spi

    1. Here, TFTP server created using "Mobaxterm" software and U-boot moved from Linux PC to windows for ease.
    2. Also refer this URL for queries, https://github.com/ARM-software/u-boot/blob/master/board/ti/ks2_evm/README (Contents of the Link, if expired)
      5722.k2hk_uboot_linux_flash.txt
      U-Boot port for Texas Instruments Keystone II EVM boards
      ========================================================
      
      Author: Murali Karicheri <m-karicheri2@ti.com>
      
      This README has information on the U-Boot port for K2HK, K2E, and K2L EVM boards.
      Documentation for this board can be found at
      http://www.advantech.com/Support/TI-EVM/EVMK2HX_sd.aspx
      https://www.einfochips.com/index.php/partnerships/texas-instruments/k2e-evm.html
      https://www.einfochips.com/index.php/partnerships/texas-instruments/k2l-evm.html
      
      The K2HK board is based on Texas Instruments Keystone2 family of SoCs: K2H, K2K.
      More details on these SoCs are available at company websites
       K2K: http://www.ti.com/product/tci6638k2k
       K2H: http://www.ti.com/product/tci6638k2h
      
      The K2E SoC details are available at
       http://www.ti.com/lit/ds/symlink/66ak2e05.pdf
      
      The K2L SoC details are available at
       http://www.ti.com/lit/ds/symlink/tci6630k2l.pdf
      
      The K2G SoC details are available at
       http://www.ti.com/lit/ds/symlink/66ak2g02.pdf
      
      Board configuration:
      ====================
      
      Some of the peripherals that are configured by U-Boot
      +------+-------+-------+-----------+-----------+-------+-------+----+
      |      |DDR3   |NAND   |MSM SRAM   |ETH ports  |UART   |I2C    |SPI |
      +------+-------+-------+-----------+-----------+-------+-------+----+
      |K2HK  |2      |512MB  |6MB	   |4(2)       |2      |3      |3   |
      |K2E   |4      |512MB  |2MB	   |8(2)       |2      |3      |3   |
      |K2L   |2      |512MB  |2MB	   |4(2)       |4      |3      |3   |
      |K2G   |2      |256MB  |1MB	   |1          |1      |1      |1   |
      +------+-------+-------+-----------+-----------+-------+-------+----+
      
      There are only 2 eth port installed on the boards.
      
      There are separate PLLs to drive clocks to Tetris ARM and Peripherals.
      To bring up SMP Linux on this board, there is a boot monitor
      code that will be installed in MSMC SRAM. There is command available
      to install this image from U-Boot.
      
      The port related files can be found at following folders
       keystone2 SoC related files: arch/arm/cpu/armv7/keystone/
       EVMs board files: board/ti/k2s_evm/
      
      Board configuration files:
      include/configs/k2hk_evm.h
      include/configs/k2e_evm.h
      include/configs/k2l_evm.h
      include/configs/k2g_evm.h
      
      As U-Boot is migrating to Kconfig there is also board defconfig files
      configs/k2e_evm_defconfig
      configs/k2hk_evm_defconfig
      configs/k2l_evm_defconfig
      configs/k2g_evm_defconfig
      
      Supported boot modes:
       - SPI NOR boot
       - AEMIF NAND boot (K2E, K2L and K2HK)
       - UART boot
       - MMC boot (Only on K2G)
      
      Supported image formats:
       - u-boot.bin: for loading and running u-boot.bin through
      		Texas Instruments code composure studio (CCS) and for UART boot.
       - u-boot-spi.gph: gpimage for programming SPI NOR flash for SPI NOR boot
       - MLO: gpimage for programming NAND flash for NAND boot, MMC boot.
      
      Build instructions:
      ===================
      Examples for k2hk, for k2e, k2l and k2g just replace k2hk prefix accordingly.
      Don't forget to add ARCH=arm and CROSS_COMPILE.
      
      To build u-boot.bin, u-boot-spi.gph, MLO:
        >make k2hk_evm_defconfig
        >make
      
      Load and Run U-Boot on keystone EVMs using CCS
      =========================================
      
      Need Code Composer Studio (CCS) installed on a PC to load and run u-boot.bin
      on EVM. See instructions at below link for installing CCS on a Windows PC.
      http://processors.wiki.ti.com/index.php/MCSDK_UG_Chapter_Getting_Started#
      Installing_Code_Composer_Studio
      Use u-boot.bin from the build folder for loading and running U-Boot binary
      on EVM. Follow instructions at
      K2HK http://processors.wiki.ti.com/index.php/EVMK2H_Hardware_Setup
      K2E  http://processors.wiki.ti.com/index.php/EVMK2E_Hardware_Setup
      K2L  http://processors.wiki.ti.com/index.php/TCIEVMK2L_Hardware_Setup
      K2G  http://processors.wiki.ti.com/index.php/66AK2G02_GP_EVM_Hardware_Setup
      
      to configure SW1 dip switch to use "No Boot/JTAG DSP Little Endian Boot Mode"
      and Power ON the EVM.  Follow instructions to connect serial port of EVM to
      PC and start TeraTerm or Hyper Terminal.
      
      Start CCS on a Windows machine and Launch Target
      configuration as instructed at http://processors.wiki.ti.com/index.php/
      MCSDK_UG_Chapter_Exploring#Loading_and_Running_U-Boot_on_EVM_through_CCS.
      The instructions provided in the above link uses a script for
      loading the U-Boot binary on the target EVM. Instead do the following:-
      
      1. Right click to "Texas Instruments XDS2xx USB Emulator_0/CortexA15_1 core (D
         is connected: Unknown)" at the debug window (This is created once Target
         configuration is launched) and select "Connect Target".
      2. Once target connect is successful, choose Tools->Load Memory option from the
         top level menu. At the Load Memory window, choose the file u-boot.bin
         through "Browse" button and click "next >" button. In the next window, enter
         Start address as 0xc000000, choose Type-size "32 bits" and click "Finish"
         button.
      3. Click View -> Registers from the top level menu to view registers window.
      4. From Registers, window expand "Core Registers" to view PC. Edit PC value
         to be 0xc000000. From the "Run" top level menu, select "Free Run"
      5. The U-Boot prompt is shown at the Tera Term/ Hyper terminal console as
         below and type any key to stop autoboot as instructed :=
      
      U-Boot 2014.04-rc1-00201-gc215b5a (Mar 21 2014 - 12:47:59)
      
      I2C:   ready
      Detected SO-DIMM [SQR-SD3T-2G1333SED]
      DRAM:  1.1 GiB
      NAND:  512 MiB
      Net:   K2HK_EMAC
      Warning: K2HK_EMAC using MAC address from net device
      , K2HK_EMAC1, K2HK_EMAC2, K2HK_EMAC3
      Hit any key to stop autoboot:  0
      
      SPI NOR Flash programming instructions
      ======================================
      U-Boot image can be flashed to first 512KB of the NOR flash using following
      instructions:
      
      1. Start CCS and run U-Boot as described above.
      2. Suspend Target. Select Run -> Suspend from top level menu
         CortexA15_1 (Free Running)"
      3. Load u-boot-spi.gph binary from build folder on to DDR address 0x87000000
         through CCS as described in step 2 of "Load and Run U-Boot on K2HK/K2E/K2L
         EVM using CCS", but using address 0x87000000.
      4. Free Run the target as described earlier (step 4) to get U-Boot prompt
      5. At the U-Boot console type following to setup U-Boot environment variables.
         setenv addr_uboot 0x87000000
         setenv filesize <size in hex of u-boot-spi.gph rounded to hex 0x10000>
         run burn_uboot_spi
         Once U-Boot prompt is available, Power OFF the EVM. Set the SW1 dip switch
         to "SPI Little Endian Boot mode" as per instruction at
         http://processors.wiki.ti.com/index.php/*_Hardware_Setup.
      6. Power ON the EVM. The EVM now boots with U-Boot image on the NOR flash.
      
      AEMIF NAND Flash programming instructions
      ======================================
      U-Boot image can be flashed to first 1024KB of the NAND flash using following
      instructions:
      
      1. Start CCS and run U-Boot as described above.
      2. Suspend Target. Select Run -> Suspend from top level menu
         CortexA15_1 (Free Running)"
      3. Load MLO binary from build folder on to DDR address 0x87000000
         through CCS as described in step 2 of "Load and Run U-Boot on K2HK EVM
         using CCS", but using address 0x87000000.
      4. Free Run the target as described earlier (step 4) to get U-Boot prompt
      5. At the U-Boot console type following to setup U-Boot environment variables.
         setenv filesize <size in hex of MLO rounded to hex 0x10000>
         run burn_uboot_nand
         Once U-Boot prompt is available, Power OFF the EVM. Set the SW1 dip switch
         to "ARM NAND Boot mode" as per instruction at
         http://processors.wiki.ti.com/index.php/*_Hardware_Setup.
      6. Power ON the EVM. The EVM now boots with U-Boot image on the NAND flash.
      
      Load and Run U-Boot on keystone EVMs using UART download
      ========================================================
      
      Open BMC and regular UART terminals.
      
      1. On the regular UART port start xmodem transfer of the u-boot.bin
      2. Using BMC terminal set the ARM-UART bootmode and reboot the EVM
         BMC> bootmode #4
         MBC> reboot
      3. When xmodem is complete you should see the U-Boot starts on the UART port
      
      Load and Run U-Boot on K2G EVMs using MMC
      ========================================================
      
      Open BMC and regular UART terminals.
      
      1. Set the SW3 dip switch to "ARM MMC Boot mode" as per instruction at
         http://processors.wiki.ti.com/index.php/66AK2G02_GP_EVM_Hardware_Setup
      2. Create SD card partitions as per steps given in Hardware Setup Guide.
      3. Copy MLO to Boot Partition.
      4. Insert SD card and Power on the EVM.
         The EVM now boots with U-Boot image from SD card.

    Thanks & Regards,

    Rajarajan U