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