On 22/06/2022 08.13, Peng Fan (OSS) wrote: > From: Peng Fan <peng.fan@xxxxxxx> > > i.MX8MP iomux pad BIT3 and BIT0 are reserved bits. Writing 1 to the > reserved bit will be ignored and reading will still return 0. Although > function not broken with reserved bits set, we should not set reserved > bits. Thank you, these have really been bugging my while trying to bring up an imx8mp-based board and adding the right pinmux settings - not knowing whether there was some undocumented effect from including one of those bits has led me astray more than once. One question: E.g. in patch 11, you change the setting from 0x49 to 0x40, which is of course exactly what the patch description says. But when bit 8 (PE) is not set, is there any effect from either setting of bit 6 (PUE)? Not that I suggest changing to 0x00, but I'm just curious. For the series: Reviewed-by: Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx>
