U-Boot for UniPhier SoC family ============================== Tested toolchains ----------------- (a) Ubuntu packages (CROSS_COMPILE=arm-linux-gnueabi-) If you are building U-Boot on Ubuntu, its standard package is recommended. You can install it as follows: $ sudo apt-get install gcc-arm-linux-gnueabi- (b) Linaro compilers (CROSS_COMPILE=arm-linux-gnueabihf-) You can download pre-built toolchains from: http://www.linaro.org/downloads/ (c) kernel.org compilers (CROSS_COMPILE=arm-unknown-linux-gnueabi-) You can download pre-built toolchains from: ftp://www.kernel.org/pub/tools/crosstool/files/bin/ Compile the source ------------------ PH1-Pro4: $ make ph1_pro4_defconfig $ make CROSS_COMPILE=arm-linux-gnueabi- PH1-LD4: $ make ph1_ld4_defconfig $ make CROSS_COMPILE=arm-linux-gnueabi- PH1-sLD8: $ make ph1_sld8_defconfig $ make CROSS_COMPILE=arm-linux-gnueabi- You may wish to change the "CROSS_COMPILE=arm-linux-gnueabi-" to use your favorite compiler. Burn U-Boot images to NAND -------------------------- Write two files to the NAND device as follows: - spl/u-boot-spl.bin at the offset address 0x00000000 - u-boot-dtb.img at the offset address 0x00010000 If a TFTP server is available, the images can be easily updated. Just copy the u-boot-spl.bin and u-boot-dtb.img to the TFTP public directory, and then run the following command at the U-Boot command line: => run nandupdate UniPhier specific commands -------------------------- - pinmon (enabled by CONFIG_CMD_PINMON) shows the boot mode pins that has been latched at the power-on reset - ddrphy (enabled by CONFIG_CMD_DDRPHY_DUMP) shows the DDR PHY parameters set by the PHY training Supported devices ----------------- - UART (on-chip) - NAND - USB 2.0 (EHCI) - USB 3.0 (xHCI) - LAN (on-board SMSC9118) - I2C - EEPROM (connected to the on-board I2C bus) - Support card (SRAM, NOR flash, some peripherals) -- Masahiro Yamada Feb. 2015