| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| Pine64 Star64 |
| ============= |
| |
| U-Boot for the Star64 uses the same U-Boot binaries as the VisionFive 2 board. |
| In U-Boot SPL the actual board is detected and the device-tree patched |
| accordingly. |
| |
| Building |
| ~~~~~~~~ |
| |
| 1. Add the RISC-V toolchain to your PATH. |
| 2. Setup ARCH & cross compilation environment variable: |
| |
| .. code-block:: none |
| |
| export CROSS_COMPILE=<riscv64 toolchain prefix> |
| |
| The M-mode software OpenSBI provides the supervisor binary interface (SBI) and |
| is responsible for the switch to S-Mode. It is a prerequisite to build U-Boot. |
| Support for the JH7110 was introduced in OpenSBI 1.2. It is recommended to use |
| a current release. |
| |
| .. code-block:: console |
| |
| git clone https://github.com/riscv/opensbi.git |
| cd opensbi |
| make PLATFORM=generic FW_TEXT_START=0x40000000 |
| |
| Now build the U-Boot SPL and U-Boot proper. |
| |
| .. code-block:: console |
| |
| cd <U-Boot-dir> |
| make starfive_visionfive2_defconfig |
| make OPENSBI=$(opensbi_dir)/build/platform/generic/firmware/fw_dynamic.bin |
| |
| This will generate the U-Boot SPL image (spl/u-boot-spl.bin.normal.out) as well |
| as the FIT image (u-boot.itb) with OpenSBI and U-Boot. |
| |
| Device-tree selection |
| ~~~~~~~~~~~~~~~~~~~~~ |
| |
| U-Boot will set variable $fdtfile to starfive/jh7110-pine64-star64.dtb. |
| |
| To overrule this selection the variable can be set manually and saved in the |
| environment |
| |
| :: |
| |
| env set fdtfile my_device-tree.dtb |
| env save |
| |
| or the configuration variable CONFIG_DEFAULT_FDT_FILE can be used to set to |
| provide a default value. |
| |
| Boot source selection |
| ~~~~~~~~~~~~~~~~~~~~~ |
| |
| Boot mode is selected by an MSEL-DIP marked S1804 and GPIO_0 position adjacent |
| to the 40pin GPIO header. ON/ONKE and number markings of the MSEL-DIP are |
| misleading; Instead refer to the ``L`` (0) and ``H`` (1) silkscreen for |
| accurate selection. |
| |
| + (QSPI) Flash: 00 |
| + SD: 01 |
| + EMMC: 10 |
| + UART: 11 |
| |
| Preparing the SD-Card |
| ~~~~~~~~~~~~~~~~~~~~~ |
| |
| The device firmware loads U-Boot SPL (u-boot-spl.bin.normal.out) from the |
| partition with type GUID 2E54B353-1271-4842-806F-E436D6AF6985. You are free |
| to choose any partition number. |
| |
| With the default configuration U-Boot SPL loads the U-Boot FIT image |
| (u-boot.itb) from partition 2 (CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=0x2). |
| When formatting it is recommended to use GUID |
| BC13C2FF-59E6-4262-A352-B275FD6F7172 for this partition. |
| |
| The FIT image (u-boot.itb) is a combination of OpenSBI's fw_dynamic.bin, |
| u-boot-nodtb.bin and the device tree blob. |
| |
| Format the SD card (make sure the disk has GPT, otherwise use gdisk to switch) |
| |
| .. code-block:: bash |
| |
| sudo sgdisk --clear \ |
| --set-alignment=2 \ |
| --new=1:4096:8191 --change-name=1:spl --typecode=1:2E54B353-1271-4842-806F-E436D6AF6985\ |
| --new=2:8192:16383 --change-name=2:uboot --typecode=2:BC13C2FF-59E6-4262-A352-B275FD6F7172 \ |
| --new=3:16384:1654784 --change-name=3:system --typecode=3:EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 \ |
| /dev/sdb |
| |
| Copy U-Boot to the SD card |
| |
| .. code-block:: bash |
| |
| sudo dd if=u-boot-spl.bin.normal.out of=/dev/sdb1 |
| sudo dd if=u-boot.itb of=/dev/sdb2 |
| |
| sudo mount /dev/sdb3 /mnt/ |
| sudo cp u-boot-spl.bin.normal.out /mnt/ |
| sudo cp u-boot.itb /mnt/ |
| sudo cp Image.gz /mnt/ |
| sudo cp initramfs.cpio.gz /mnt/ |
| sudo cp jh7110-starfive-visionfive-2.dtb /mnt/ |
| sudo umount /mnt |
| |
| Booting |
| ~~~~~~~ |
| |
| Once you plugin the sdcard and power up, you should see the U-Boot prompt. |
| |
| Serial Number and MAC address issues |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| |
| U-Boot requires valid EEPROM data to determine which board-specific fix-up to |
| apply at runtime. This affects the size of memory initialized, network mac |
| address numbering, and tuning of the network PHYs. |
| |
| The Star64 does not currently ship with unique serial numbers per-device. |
| Devices follow a pattern where the last mac address bytes are a sum of 0x7558 |
| and the serial number (lower port mac0), or a sum of 0x7559 and the serial |
| number (upper port mac1). |
| |
| As tested there are several 4gb model units where the serial number and network |
| mac addresses collide with other devices (serial |
| ``STAR64V1-2310-D004E000-00000005``, MACs ``6c:cf:39:00:75:61``, |
| ``6c:cf:39:00:75:62``) |
| |
| Some early Star64 boards shipped with an uninitialized EEPROM and no write |
| protect pull-up resistor in place. Later units of all 4gb and 8gb models |
| sharing the same serial number in EEPROM data will have this problem that the |
| network mac addresses are alike between different models and this may be |
| corrected by defeating the write protect resistor to write new values. As an |
| alternative to this, it may be worked around by overriding the mac addresses |
| via U-Boot environment variables. |
| |
| It is required for any unit having uninitialized EEPROM and recommended for |
| all later Star64 4gb model units (not properly serialized) to have decided on a |
| new 6-byte serial number. This serial number should be high enough to |
| avoid collision with other JH7110 boards and low enough not to overflow i.e. |
| between ``cafe00`` and ``f00d00``. |
| |
| Update EEPROM values |
| ^^^^^^^^^^^^^^^^^^^^ |
| |
| 1. Prepare EEPROM data in memory |
| |
| :: |
| |
| ## When there is no error to load existing data: |
| mac read_eeprom |
| |
| ## When there is an error to load non-existing data: |
| # "DRAM: Not a StarFive EEPROM data format - magic error" |
| mac initialize |
| |
| 2. Set Star64 values |
| |
| :: |
| |
| ## Common values |
| mac vendor PINE64 |
| mac pcb_revision c1 |
| mac bom_revision A |
| |
| ## Device-specific values |
| # Year 2023 week 10 production date, 8GB DRAM, optional eMMC, serial cdef01 |
| mac product_id STAR64V1-2310-D008E000-00cdef01 |
| |
| # Last three bytes mac0: 0x7558 + serial number 0xcdef01 |
| mac mac0_address 6c:cf:39:ce:64:59 |
| |
| # Last three bytes mac1: 0x7559 + serial number 0xcdef01 |
| mac mac1_address 6c:cf:39:ce:64:5a |
| |
| 3. Defeat write-protect pull-up resistor (if installed) and write to EEPROM |
| |
| :: |
| |
| mac write_eeprom |
| |
| Set Variables in U-Boot |
| ^^^^^^^^^^^^^^^^^^^^^^^ |
| |
| .. note:: Changing just the serial number will not alter your MAC address |
| |
| The MAC addresses may be "set" as follows by writing as a custom config to SPI |
| (Change the last 3 bytes of MAC addreses as appropriate): |
| |
| :: |
| |
| env set serial# STAR64V1-2310-D008E000-00cdef01 |
| env set ethaddr 6c:cf:39:ce:64:59 |
| env set eth1addr 6c:cf:39:ce:64:5a |
| env save |
| reset |