From: Adam Ford <aford173@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 6/7] OMAP3: Add SMSC9221 device tree for omap devices connected on GPMC.
Date: Wed, 12 Apr 2017 07:40:04 -0500 [thread overview]
Message-ID: <1492000804-12042-1-git-send-email-aford173@gmail.com> (raw)
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 <aford173@gmail.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
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 at 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
next reply other threads:[~2017-04-12 12:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 12:40 Adam Ford [this message]
2017-04-12 19:18 ` [U-Boot] [PATCH 6/7] OMAP3: Add SMSC9221 device tree for omap devices connected on GPMC Tom Rini
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