From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vignesh R Subject: [PATCH v5 4/5] ARM: dts: DRA7: add entry for qspi mmap region Date: Fri, 11 Dec 2015 09:39:59 +0530 Message-ID: <1449807000-6457-5-git-send-email-vigneshr@ti.com> References: <1449807000-6457-1-git-send-email-vigneshr@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1449807000-6457-1-git-send-email-vigneshr@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren , Brian Norris , Mark Brown Cc: Rob Herring , Russell King , hramrach@gmail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org, linux-spi@vger.kernel.org, Vignesh R List-Id: devicetree@vger.kernel.org Add qspi memory mapped region entries for DRA7xx based SoCs. Also, update the binding documents for the controller to document this change. Signed-off-by: Vignesh R --- v5: use syscon to access scm register. Documentation/devicetree/bindings/spi/ti_qspi.txt | 17 +++++++++++++++++ arch/arm/boot/dts/dra7.dtsi | 6 ++++-- 2 files changed, 21 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt b/Documentation/devicetree/bindings/spi/ti_qspi.txt index 601a360531a5..809c3f334316 100644 --- a/Documentation/devicetree/bindings/spi/ti_qspi.txt +++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt @@ -15,6 +15,10 @@ Recommended properties: - spi-max-frequency: Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt +Optional properties: +- syscon-chipselects: Handle to system control region contains QSPI + chipselect register and offset of that register. + Example: qspi: qspi@4b300000 { @@ -26,3 +30,16 @@ qspi: qspi@4b300000 { spi-max-frequency = <25000000>; ti,hwmods = "qspi"; }; + +For dra7xx: +qspi: qspi@4b300000 { + compatible = "ti,dra7xxx-qspi"; + reg = <0x4b300000 0x100>, + <0x5c000000 0x4000000>, + reg-names = "qspi_base", "qspi_mmap"; + syscon-chipselects = <&scm_conf 0x558>; + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <48000000>; + ti,hwmods = "qspi"; +}; diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index fe99231cbde5..be91c7781c07 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -1153,8 +1153,10 @@ qspi: qspi@4b300000 { compatible = "ti,dra7xxx-qspi"; - reg = <0x4b300000 0x100>; - reg-names = "qspi_base"; + reg = <0x4b300000 0x100>, + <0x5c000000 0x4000000>; + reg-names = "qspi_base", "qspi_mmap"; + syscon-chipselects = <&scm_conf 0x558>; #address-cells = <1>; #size-cells = <0>; ti,hwmods = "qspi"; -- 2.6.3