From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH] ARM: dts: OMAP5 / DRA7: indicate that SATA port 0 is available. Date: Thu, 12 Jan 2017 14:30:08 -0800 Message-ID: <20170112223007.GP2630@atomide.com> References: <1483964535-4298-1-git-send-email-jjhiblot@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1483964535-4298-1-git-send-email-jjhiblot@ti.com> Sender: stable-owner@vger.kernel.org To: Jean-Jacques Hiblot Cc: bcousson@baylibre.com, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, rogerq@ti.com, stable@vger.kernel.org List-Id: linux-omap@vger.kernel.org * Jean-Jacques Hiblot [170109 04:23]: > AHCI provides the register PORTS_IMPL to let the software know which port > is supported. The register must be initialized by the bootloader. However > in some cases u-boot doesn't properly initialize this value (if it is not > compiled with SATA support for example or if the SATA initialization fails). > The DTS entry "ports-implemented" can be used to override the value in > PORTS_IMPL. > Adding this entry in the dts allows us no to worry about what is done by > the bootloader. Adding into omap-for-v4.11/dt thanks. Tony