From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH v2] arm64: dts: ti: k3-am65: Change #address-cells and #size-cells of interconnect to 2 Date: Tue, 4 Sep 2018 08:14:26 -0700 Message-ID: <20180904151426.GA5662@atomide.com> References: <20180903095235.13853-1-kishon@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20180903095235.13853-1-kishon@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Kishon Vijay Abraham I Cc: Nishanth Menon , Mark Rutland , devicetree@vger.kernel.org, Catalin Marinas , Will Deacon , linux-kernel@vger.kernel.org, nsekhar@ti.com, Tero Kristo , Rob Herring , Santosh Shilimkar , linux-arm-kernel@lists.infradead.org, Vignesh R List-Id: devicetree@vger.kernel.org * Kishon Vijay Abraham I [180903 09:56]: > AM65 has two PCIe controllers and each PCIe controller has '2' address > spaces one within the 4GB address space of the SoC and the other above > the 4GB address space of the SoC (cbass_main) in addition to the > register space. The size of the address space above the 4GB SoC address > space is 4GB. These address ranges will be used by CPU/DMA to access > the PCIe address space. In order to represent the address space above > the 4GB SoC address space and to represent the size of this address > space as 4GB, change address-cells and size-cells of interconnect to 2. > > Since OSPI has similar need in MCU Domain Memory Map, change > address-cells and size-cells of cbass_mcu interconnect also to 2. > > Signed-off-by: Kishon Vijay Abraham I > --- > Changes from v1: > Changed address-cells and size-cells of cbass_mcu to "2" since OSPI has > a region of size 4GB above the 4GB space. Acked-by: Tony Lindgren