From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Rutland Date: Mon, 07 Dec 2015 19:03:55 +0000 Subject: Re: [PATCH v2 6/6] arm64: renesas: r8a7795: Add L2 cache-controller nodes Message-Id: <20151207190355.GE28024@leverpostej> List-Id: References: <1449512659-16688-1-git-send-email-geert+renesas@glider.be> <1449512659-16688-7-git-send-email-geert+renesas@glider.be> <5665D4C7.1050705@arm.com> In-Reply-To: <5665D4C7.1050705@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On Mon, Dec 07, 2015 at 06:49:43PM +0000, Sudeep Holla wrote: > > On 07/12/15 18:24, Geert Uytterhoeven wrote: > >+ L2_CA57: cache-controller@0 { > >+ compatible = "cache"; > >+ arm,data-latency = <4 4 1>; > >+ arm,tag-latency = <3 3 3>; > > Interesting, only PL2xx/3xx cache controller driver reads this from the > DT and configures the controller. The integrated L2 found in > A15/A7/A57/A53 needs doesn't make use of these values from the DT. These properties seem to be from l2cc.txt, which really only corresponds to PL210/PL220/PL310 (and variants) and isn't as generic as it sounds. I don't see that these are necessary at all. Thanks, Mark.