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Ethernet Firmware
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Ethernet Firmware
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SoC's, such as J7200 or J721E, integrate an Ethernet Switch as an chip-in-chip. The combined features of SoC and Switch IP (CPSW5G/CPSW9G) can allow Ethernet switch to function continuously enabling unaffected switching on external ports regardless of the state of the rest of the device.
The diagram below shows the hardware capabilities of the integrated Ethernet Switch in J721E SoC that enable it to act as a replacement to an external switch in the traditional automotive Ethernet gateway system.
The integrated switch in J721E offers 8 MAC ports, while the switch in J7200 offers 4 MAC ports. In both cases, an internal host port provides connectivity to the SoC which enables the different processing cores to exchange packets with the switch.
It's worth noting that the previous diagram shows internal data paths that are available in the SoC but not necessarily enabled in the Ethernet Firmware component. Please refer to the Remote Core Clients section for further information about the processing cores where virtual Ethernet functionality has been enabled.
The Ethernet Firmware is a FreeRTOS based application for configuration of Ethernet switch, hosted on the Cortex R5F 0 core 0 in Main domain of J721E and J7200 SoCs.
Ethernet Firmware package contains remote configuration server, resource management library, switch resident protocols, proxy layers to handle local and remote API calls and demonstration applications (EthFw Demos). The switch software uses PDK Enet and other drivers for respective IP configuration. The main building blocks of the Ethernet Firmware are shown in the following diagram.
| Revision | Date | Author | Description |
|---|---|---|---|
| 0.1 | 02 Apr 2019 | Prasad J, Misael Lopez | Added as per 0.8 Docs review meeting |
| 0.2 | 14 Oct 2019 | Prasad J | Updated stack diagram |
| 1.0 | 02 Nov 2020 | Misael Lopez | Updated for Enet LLD migration |
| 1.1 | 08 Jul 2021 | Misael Lopez | Updates for v.8.00.00 |
| 1.2 | 07 Dec 2021 | Misael Lopez | Updates for v.8.01.00 |
| 1.3 | 25 Feb 2022 | Misael Lopez | Updates for v.8.02.00 |
1.8.15