Re: [PATCH v2 4/4] can: rcar_canfd: Add RZ/T2H support
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: 2026-01-16 09:09:05
Also in:
linux-can, linux-renesas-soc, lkml
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: 2026-01-16 09:09:05
Also in:
linux-can, linux-renesas-soc, lkml
Hi Geert, On Wed, Jan 7, 2026 at 4:37 PM Geert Uytterhoeven [off-list ref] wrote:
Hi Prabhakar, On Tue, 30 Dec 2025 at 12:58, Prabhakar [off-list ref] wrote:quoted
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> The CAN-FD IP on the RZ/T2H SoC is similar to R-Car Gen4, but differs in the AFLPN and CFTML bits and supports two channels with eight interrupts. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>Thanks for your patch! LGTM, so Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> However, compared to other SoCs, CFDCnNCFG.NSJW[6:0] has: 0x00: Setting prohibited Perhaps this is a documentation issue, as the same limitation was dropped in RZ/V2H Hardware User Manual Rev.1.30?
I got confirmation from the HW team that it's a typo. Similar to RZ/V2H, setting it to 0x00 results in 1 Tq and this shall be reflected in the next UM update. Cheers, Prabhakar