linux-chenxing.org
QFN68 Demoboard
Hardware specs
- SSD210 or SSC9211, seem to be pin to pin compatible.
- SPI NOR
- SPI NAND
- Leadchip LC9226 PMIC datasheet vendor site
Reverse engineering notes
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For the SSC9211 SD card power is connected to “GPIO 24”, which is “TTL7” (I think) on the SSD210 diagram. gpio register that changes when u-boot toggles it is 0x2d8.
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CPU voltage control (0.9v or 1.0v) is controlled by SAR_GPIO1