From 65ee2f3c33bd31b6d542310f28e9c5f5504a79f5 Mon Sep 17 00:00:00 2001 From: Adam Ford Date: Mon, 17 Apr 2017 08:09:42 -0500 Subject: [PATCH] OMAP3: Add SMSC9221 device tree for omap devices connected on GPMC. Some OMAP3 devices support an SMSC ethernet PHY connected to the GPMC bus. This copies this device tree from Linux 4.9.y stable Signed-off-by: Adam Ford Reviewed-by: Lokesh Vutla --- arch/arm/dts/omap-gpmc-smsc9221.dtsi | 58 ++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 arch/arm/dts/omap-gpmc-smsc9221.dtsi diff --git a/arch/arm/dts/omap-gpmc-smsc9221.dtsi b/arch/arm/dts/omap-gpmc-smsc9221.dtsi new file mode 100644 index 0000000..73e272f --- /dev/null +++ b/arch/arm/dts/omap-gpmc-smsc9221.dtsi @@ -0,0 +1,58 @@ +/* + * Common file for GPMC connected smsc9221 on omaps + * + * Compared to smsc911x, smsc9221 (and others like smsc9217 + * or smsc 9218) has faster timings, leading to higher + * bandwidth. + * + * Note that the board specifc DTS file needs to specify + * ranges, pinctrl, reg, interrupt parent and interrupts. + */ + +/ { + vddvario: regulator-vddvario { + compatible = "regulator-fixed"; + regulator-name = "vddvario"; + regulator-always-on; + }; + + vdd33a: regulator-vdd33a { + compatible = "regulator-fixed"; + regulator-name = "vdd33a"; + regulator-always-on; + }; +}; + +&gpmc { + ethernet@gpmc { + compatible = "smsc,lan9221","smsc,lan9115"; + bank-width = <2>; + + gpmc,mux-add-data; + gpmc,cs-on-ns = <0>; + gpmc,cs-rd-off-ns = <42>; + gpmc,cs-wr-off-ns = <36>; + gpmc,adv-on-ns = <6>; + gpmc,adv-rd-off-ns = <12>; + gpmc,adv-wr-off-ns = <12>; + gpmc,oe-on-ns = <0>; + gpmc,oe-off-ns = <42>; + gpmc,we-on-ns = <0>; + gpmc,we-off-ns = <36>; + gpmc,rd-cycle-ns = <60>; + gpmc,wr-cycle-ns = <54>; + gpmc,access-ns = <36>; + gpmc,page-burst-access-ns = <0>; + gpmc,bus-turnaround-ns = <0>; + gpmc,cycle2cycle-delay-ns = <0>; + gpmc,wr-data-mux-bus-ns = <18>; + gpmc,wr-access-ns = <42>; + gpmc,cycle2cycle-samecsen; + gpmc,cycle2cycle-diffcsen; + + vddvario-supply = <&vddvario>; + vdd33a-supply = <&vdd33a>; + reg-io-width = <4>; + smsc,save-mac-address; + }; +}; -- 2.7.4