Block Diagram

The following figure displays the block diagram of the JH7100 GPIO pin control (pinctrl) driver module. The driver module has the following four parts:
  • Pin control interfaces
  • Pin control general framework
  • StarFive JH7110 pin control driver
  • Board level configuration
Figure 1. Block Diagram
The above image shows the following layers.
  • Consumer: The pin control interfaces and GPIO interfaces used by the device driver, such as SDIO, PCIE, etc.
  • Interface: The pin control and GPIO interfaces for user, see Interface Description for more information.
  • Pinctrl framework: The original Linux system pin control framework. The framework enables developers to configure one or a group of pin functions and capabilities.
  • Driver: The GPIO and pin control drivers of the StarFive JH7110 SoC platform.
  • Hardware: The GPIO controller of the StarFive JH7110 SoC platform.