Re: [PATCH 00/14] arm64: dts: imx8mp: correct pad settings

From: Uwe Kleine-König
Date: Wed Jun 22 2022 - 03:06:24 EST


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.

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/ |

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