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feat(linux): Add Ethernet boot documentation for SK-AM62A-LP #789

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feat(linux): Add Ethernet boot documentation for SK-AM62A-LP #789

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4 changes: 4 additions & 0 deletions configs/AM62AX/AM62AX_linux_config.txt
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Expand Up @@ -30,6 +30,10 @@ Replacement Variables
'__WINDOWS_SUPPORTED_LONG__' : '10 (64-bit)'
'__SYSFW_CORE_NAME__' : 'TIFS'
'__IMAGE_TYPE__' : 'edgeai'
'__SPL_VCI_STRING_LEN__' : '20'
'__SPL_VCI_STRING__' : 'AM62AX U-Boot R5 SPL'
'__UBOOT_VCI_STRING_LEN__' : '21'
'__UBOOT_VCI_STRING__' : 'AM62AX U-Boot A53 SPL'

Configuration Values
--------------------
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2 changes: 1 addition & 1 deletion configs/AM62AX/AM62AX_linux_toc.txt
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Expand Up @@ -41,7 +41,7 @@ linux/Foundational_Components/U-Boot/UG-UMS
linux/Foundational_Components/U-Boot/UG-QSPI
linux/Foundational_Components/U-Boot/UG-UART
linux/Foundational_Components/U-Boot/UG-DDRSS
#linux/Foundational_Components/U-Boot/UG-Network-K3
linux/Foundational_Components/U-Boot/UG-Network-K3
linux/Foundational_Components/U-Boot/UG-RemoteProc
linux/Foundational_Components/U-Boot/UG-Falcon-Mode

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12 changes: 6 additions & 6 deletions source/linux/Foundational_Components/U-Boot/BG-Build-K3.rst
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Expand Up @@ -349,12 +349,12 @@ All of these binaries are available in the SDK at :file:`<path to tisdk>/board-s

.. ifconfig:: CONFIG_part_variant in ('AM62AX')

+-------------+----------------------------------+--------------------------------------------------------+--------------------------------------------------------+
| Board | SD Boot | USB DFU | USB MSC |
+=============+==================================+========================================================+========================================================+
| AM62AX SK | ``am62ax_evm_r5_defconfig`` | ``am62ax_evm_r5_defconfig am62x_r5_usbdfu.config`` | ``am62ax_evm_r5_defconfig am62x_r5_usbmsc.config`` |
| | ``am62ax_evm_a53_defconfig`` | ``am62ax_evm_a53_defconfig`` | ``am62ax_evm_a53_defconfig`` |
+-------------+----------------------------------+--------------------------------------------------------+--------------------------------------------------------+
+-------------+----------------------------------+--------------------------------------------------------+--------------------------------------------------------+------------------------------------------+
| Board | SD Boot | USB DFU | USB MSC | Ethernet Boot |
+=============+==================================+========================================================+========================================================+==========================================+
| AM62AX SK | ``am62ax_evm_r5_defconfig`` | ``am62ax_evm_r5_defconfig am62x_r5_usbdfu.config`` | ``am62ax_evm_r5_defconfig am62x_r5_usbmsc.config`` | ``am62ax_evm_r5_ethboot_defconfig`` |
| | ``am62ax_evm_a53_defconfig`` | ``am62ax_evm_a53_defconfig`` | ``am62ax_evm_a53_defconfig`` | ``am62ax_evm_a53_ethboot_defconfig`` |
+-------------+----------------------------------+--------------------------------------------------------+--------------------------------------------------------+------------------------------------------+

.. note::

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13 changes: 12 additions & 1 deletion source/linux/Foundational_Components/U-Boot/UG-Network-K3.rst
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Expand Up @@ -78,7 +78,18 @@ binaries files to be sent over TFTP are listed in the table below.

- Ethernet RGMII boot is supported over RGMII on J784S4 SoC.

.. ifconfig:: CONFIG_part_variant in ('AM64X','AM62X','J722S','AM62PX','J721S2','J784S4')
.. ifconfig:: CONFIG_part_variant in ('AM62AX')

Build tiboot3.bin using ``am62ax_evm_r5_ethboot_defconfig``. Build tispl.bin and u-boot.img using ``am62ax_evm_a53_ethboot_defconfig``.

.. important::

- Ethernet RGMII boot is supported over RGMII on AM62Ax SoC.
- CPSW PHYs should be strapped as per ROM's expectation described in part's TRM.
- When the link info Bootmode pin is enabled, this means no auto-negotiation or reading of the Ethernet PHY is needed since the ROM will assume the link is up at 1Gbps, full duplex mode.
- Disable link info Bootmode pin so that ROM can identify the PHY and establishes link with the supported speed and duplex mode.

.. ifconfig:: CONFIG_part_variant in ('AM64X','AM62X','J722S','AM62PX','J721S2','J784S4','AM62AX')

If using ISC dhcpd an example host entry would look like this:

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