Properly using gpio_request and pinmux for GPIO

2020-11-12 Thread Oliver Westermann
Hey, I'm wondering if there is documentation or a good example on how to configure pin muxing in combination with the gpio_request functions. Our current implementation is incomplete as it doesn't handle the muxing, but before randomly copying code I would like to know what the "upstream" way of d

Properly using gpio_request and muxing

2020-11-12 Thread Oliver Westermann
Hey, I'm wondering if there is documentation or a good example on how to configure pin muxing in combination with the gpio_request functions. Our current implementation is incomplete as it doesn't handle the muxing, but before randomly copying code I would like to know what the "upstream" way of d

[U-Boot] U-Boot image with multiple u-Boot dt blobs selected at low level boot

2017-07-10 Thread Oliver Westermann
Hello, I've got multiple ARM boards with similar but not quite the same configurations. For example different IO configurations for peripheral reset lines of hardware used in the u-boot phase. Currently I have multiple u-Boot configurations using multiple .dts files creating multiple u-boot.img a