From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Blumenstingl Subject: Re: [PATCH 2/4] clk: meson: meson8b: use a sparate clock table for Meson8m2 Date: Wed, 20 Mar 2019 21:38:33 +0100 Message-ID: References: <20190319215121.29340-1-martin.blumenstingl@googlemail.com> <20190319215121.29340-3-martin.blumenstingl@googlemail.com> <1d52f584-1a5d-8b0d-ecd0-8c041f2b9c18@baylibre.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <1d52f584-1a5d-8b0d-ecd0-8c041f2b9c18@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org To: Neil Armstrong Cc: jbrunet@baylibre.com, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org Hi Neil, On Wed, Mar 20, 2019 at 9:15 AM Neil Armstrong wrote: > > Hi, > > There is a typo in the subject "s/sparate/separate/" ! good catch - I'll wait until the weekend and send a fixed version then! > On 19/03/2019 22:51, Martin Blumenstingl wrote: > > Meson8, Meson8b and Meson8m2 implement a similar clock controller. > > However, there are a few differences between the three actual IP blocks. > > > > One example where Meson8m2 differs from Meson8b is the VPU clock setup: > > - the VPU input mux can choose between "fclk_div4", "fclk_div3", > > "fclk_div5" and "fclk_div7" on Meson8b > > - however, on Meson8m2 it can choose between "fclk_div4", "fclk_div3", > > "fclk_div5" and "gp_pll" (GP_PLL only exists on Meson8m2, it's the > > predecessor of the GP0_PLL clock on GXBB/GXL/GXM)) > > By curiosity, what is the default (maximum) setup ? On GX & G12A, fclk_div3 is the default/max setup. u-boot on my Meson8m2 board uses GP_PLL as input (364MHz) u-boot on my Meson8b (Odroid-C1) uses fclk_div7 as input (approx. 364MHz) if you want I can look up the divider (I don't remember it from the top of my head) [...] > Apart the typo in the subject, > Reviewed-by: Neil Armstrong thank you! Regards Martin