> Subject: Re: [PATCH 00/14] arm64: dts: imx8mp: correct pad settings > > Hello, > > On Wed, Jun 22, 2022 at 02:13:56PM +0800, 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. > > I wonder how you found these. Some time ago I wrote a tool for such issues[1]. > Currently it only supports i.MX25, i.MX6DL and i.MX6Q, but extending it for > the other SoCs should be only some industious effort. We have customer has question about the dts pad settings in U-Boot. Since the dts in U-Boot was synced from Linux kernel tree, and I found the current settings in kernel dts not match with latest reference manual. Regards, Peng. > > Best regards > Uwe > > [1] > https://git.pengutronix.de/cgit/tools/dt-utils/tree/src/dtblint-imx-pinmux.c > > > -- > Pengutronix e.K. | Uwe Kleine-König > | > Industrial Linux Solutions | https://www.pengutronix.de/ > |
