From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH 1/2] dt-bindings: amlogic: Add support for GXL S805X and the P241 board Date: Mon, 16 Jul 2018 16:04:35 -0600 Message-ID: <20180716220435.GA22633@rob-hp-laptop> References: <1530784243-20823-1-git-send-email-narmstrong@baylibre.com> <1530784243-20823-2-git-send-email-narmstrong@baylibre.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1530784243-20823-2-git-send-email-narmstrong@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org To: Neil Armstrong Cc: khilman@baylibre.com, devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, martin.blumenstingl@googlemail.com List-Id: devicetree@vger.kernel.org On Thu, Jul 05, 2018 at 11:50:42AM +0200, Neil Armstrong wrote: > The S805X is a variant of the Amlogic Meson GXL SoC family with the > following physical limitations : > - No SDCard interface > - No GPIOCLK pins > - No USB OTG ID pin (but Gadget feature can stil be forced) > - No 5V regulator > - Reduced ADC inputs (only ADC0 and ADC1) > - GPIODV_26, GPIOAO_3, GPIOAO_4, GPIOAO_5, GPIOAO_6, GPIOX_14, > GPIOX_15, GPIOH_3 are no more exposed on the package > > Amlogic exposes the following SW limitations : > - HDMI max resolution should be 1080p60, VPU clock should be downgraded > - Video Decoding should be limited to 1080p60, VDEC clock should be downgraded > - CPU speed should be limited by SCPI OPP table to 1.2GHz > - DRAM interface is limited to DDR4 16bit up to 1GiB > > Signed-off-by: Neil Armstrong > --- > Documentation/devicetree/bindings/arm/amlogic.txt | 6 ++++++ > 1 file changed, 6 insertions(+) Reviewed-by: Rob Herring