View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0007210 | UBoot | U-Boot | public | 2026-04-13 12:23 | 2026-04-13 12:23 |
| Reporter | mueller | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| Product Version | v2024.04-fus1.7 | ||||
| Target Version | u-boot-2024.04-next | ||||
| Summary | 0007210: [FSIMX8MM] Remove unneeded internal pull resistors | ||||
| Description | Remove unneeded Pull-Ups and Pull-Downs for fsimx8mm Current rule-set for IOMUX: - If used as GPIO or PWM, remove pulls - I2Cs have external pulls, so remove internal ones - Bitbanging I2Cs should be set to open-drain - For IRQs that might trigger often, set hysteresis - SDIO has external pulls on CMD, DATA0 and RESET, so remove internal ones | ||||
| Additional Information | Because of the urgency of the release, we updated and tested the pad configuration only for the kernel for now. The U-Boot only runs for a couple of seconds and is mainly used in development. The degradation should not be an issue here, as it only occurs continuously driving the IO to the opposite logic level. Nevertheless we should update the pad configuration in U-Boot as well. | ||||
| Forum Link | https://forum.fs-net.de/index.php?thread/5012-gpio-pull-up-down-input-voltage/&postID=17516#post17516 | ||||
