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-U-Boot port for Texas Instruments XTCIEVMK2X
-============================================
-
-Author: Murali Karicheri <m-karicheri2@ti.com>
-
-This README has information on the u-boot port for XTCIEVMK2X EVM board.
-Documentation for this board can be found at
-  http://www.advantech.com/Support/TI-EVM/EVMK2HX_sd.aspx
-
-The 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
-
-Board configuration:
-====================
-
-Some of the peripherals that are configured by u-boot are:-
-
-1. 2GB DDR3 (can support 8GB SO DIMM as well)
-2. 512M NAND (over ti emif16 bus)
-3. 6MB MSM SRAM (part of the SoC)
-4. two 1GBit Ethernet ports (SoC supports upto 4)
-5. two UART ports
-6. three i2c interfaces
-7. three spi interfaces (only 1 interface supported in driver)
-
-There are seperate 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/
- K2HK evm board files: board/ti/k2hk_evm/
-
-board configuration file: include/configs/k2hk_evm.h
-
-Supported boot modes:
- - SPI NOR boot
- - AEMIF NAND boot
-
-Supported image formats:-
- - u-boot.bin: for loading and running u-boot.bin through Texas instruments
-               code composure studio (CCS)
- - u-boot-spi.gph: gpimage for programming SPI NOR flash for SPI NOR boot
- - u-boot-nand.gph: gpimage for programming AEMIF NAND flash for NAND boot
-
-Build instructions:
-===================
-
-To build u-boot.bin
-  >make k2hk_evm_config
-  >make u-boot-spi.gph
-
-To build u-boot-spi.gph
-  >make k2hk_evm_config
-  >make u-boot-spi.gph
-
-To build u-boot-nand.gph
-  >make k2hk_evm_config
-  >make u-boot-nand.gph
-
-Load and Run U-Boot on K2HK EVM 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 annd running u-boot binary
-on EVM. Follow instructions at
-http://processors.wiki.ti.com/index.php/EVMK2H_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
-   isconnected: 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 0xc001000, 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 0xc001000. 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 EVM
-   using CCS", but using address 0x87000000.
-4. Free Run the target as desribed 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/EVMK2H_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 u-boot-nand.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 EVM
-   using CCS", but using address 0x87000000.
-4. Free Run the target as desribed 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 u-boot-nand.gph 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/EVMK2H_Hardware_Setup.
-6. Power ON the EVM. The EVM now boots with u-boot image on the NAND flash.