linux-kernel - Re: [PATCH 0/3] can: xilinx_can: Add ECC feature support

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Message-ID: <20230616-unneeded-denote-eaa4053514d8-mkl@pengutronix.de>
Date:   Fri, 16 Jun 2023 13:12:10 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Srinivas Goud <srinivas.goud@....com>
Cc:     wg@...ndegger.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, gcnu.goud@...il.com,
        git@....com, michal.simek@...inx.com, linux-can@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] can: xilinx_can: Add ECC feature support

On 12.06.2023 17:12:54, Srinivas Goud wrote:
> ECC feature added to Tx and Rx FIFO’s for Xilinx CAN Controller.
> Part of this feature configuration and counter registers added 
> in Xilinx CAN Controller for 1bit/2bit ECC errors count and reset.
> Please find more details in PG096 v5.1 document.

The document "PG096 (v5.1) May 16, 2023 CAN v5.1" [1] lists the
XCAN_ECC_CFG_OFFSET as reserved, although it has a section "ECC
Configuration Register".

[1] https://docs.xilinx.com/viewer/book-attachment/Bv6XZP9HRonCGi58fl10dw/ch1ZLpOt4UKWNub7DXjJ7Q

The other registers (XCAN_TXTLFIFO_ECC_OFFSET, XCAN_TXOLFIFO_ECC_OFFSET,
XCAN_TXOLFIFO_ECC_OFFSET) are also listed as reserved and not even
mentioned on the document. Am I missing something?

regards,
Marc

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