ARM: dts: Fix GPMC Ethernet timings for omap cm-t sbc-t boards for device tree

Looks like we have wrong GPMC timings we have for the cm-t and
sbc-t boards. This can cause occasional strange errors with at
least doing an rsync of large files or doing apt-get dist-upgrade.

Let's fix the issue in two phases. First let's simplify cm-t and
sbc-t to use the shared omap-gpmc-smsc911x.dtsi to avoid fixing
the issue in multiple places. Then we can fix the timings in
a single place with a follow-up patch.

Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 18 insertions, 55 deletions

diff --git a/arch/arm/boot/dts/omap3-cm-t3x30.dtsi b/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
index 75e0a1f96b60..25ba08331d88 100644
--- a/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
+++ b/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
@@ -10,18 +10,6 @@
                         cpu0-supply = <&vcc>;
                 };
         };
-
-        vddvario: regulator-vddvario {
-                compatible = "regulator-fixed";
-                regulator-name = "vddvario";
-                regulator-always-on;
-        };
-
-        vdd33a: regulator-vdd33a {
-                compatible = "regulator-fixed";
-                regulator-name = "vdd33a";
-                regulator-always-on;
-        };
 };
 
 &omap3_pmx_core {
@@ -51,42 +39,18 @@
         };
 };
 
+#include "omap-gpmc-smsc911x.dtsi"
+
 &gpmc {
         ranges = <5 0 0x2c000000 0x01000000>;
 
-        smsc1: ethernet@5,0 {
+        smsc1: ethernet@gpmc {
                 compatible = "smsc,lan9221", "smsc,lan9115";
                 pinctrl-names = "default";
                 pinctrl-0 = <&smsc1_pins>;
                 interrupt-parent = <&gpio6>;
                 interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
                 reg = <5 0 0xff>;
-                bank-width = <2>;
-                gpmc,mux-add-data;
-                gpmc,cs-on-ns = <0>;
-                gpmc,cs-rd-off-ns = <186>;
-                gpmc,cs-wr-off-ns = <186>;
-                gpmc,adv-on-ns = <12>;
-                gpmc,adv-rd-off-ns = <48>;
-                gpmc,adv-wr-off-ns = <48>;
-                gpmc,oe-on-ns = <54>;
-                gpmc,oe-off-ns = <168>;
-                gpmc,we-on-ns = <54>;
-                gpmc,we-off-ns = <168>;
-                gpmc,rd-cycle-ns = <186>;
-                gpmc,wr-cycle-ns = <186>;
-                gpmc,access-ns = <114>;
-                gpmc,page-burst-access-ns = <6>;
-                gpmc,bus-turnaround-ns = <12>;
-                gpmc,cycle2cycle-delay-ns = <18>;
-                gpmc,wr-data-mux-bus-ns = <90>;
-                gpmc,wr-access-ns = <186>;
-                gpmc,cycle2cycle-samecsen;
-                gpmc,cycle2cycle-diffcsen;
-                vddvario-supply = <&vddvario>;
-                vdd33a-supply = <&vdd33a>;
-                reg-io-width = <4>;
-                smsc,save-mac-address;
         };
 };
 
diff --git a/arch/arm/boot/dts/omap3-sb-t35.dtsi b/arch/arm/boot/dts/omap3-sb-t35.dtsi
index 7909c51b05a5..b3b6e4381021 100644
--- a/arch/arm/boot/dts/omap3-sb-t35.dtsi
+++ b/arch/arm/boot/dts/omap3-sb-t35.dtsi
@@ -2,20 +2,6 @@
  * Common support for CompuLab SB-T35 used on SBC-T3530, SBC-T3517 and SBC-T3730
  */
 
-/ {
-        vddvario_sb_t35: regulator-vddvario-sb-t35 {
-                compatible = "regulator-fixed";
-                regulator-name = "vddvario";
-                regulator-always-on;
-        };
-
-        vdd33a_sb_t35: regulator-vdd33a-sb-t35 {
-                compatible = "regulator-fixed";
-                regulator-name = "vdd33a";
-                regulator-always-on;
-        };
-};
-
 &omap3_pmx_core {
         smsc2_pins: pinmux_smsc2_pins {
                 pinctrl-single,pins = <
@@ -57,8 +43,8 @@
                 gpmc,wr-access-ns = <186>;
                 gpmc,cycle2cycle-samecsen;
                 gpmc,cycle2cycle-diffcsen;
-                vddvario-supply = <&vddvario_sb_t35>;
-                vdd33a-supply = <&vdd33a_sb_t35>;
+                vddvario-supply = <&vddvario>;
+                vdd33a-supply = <&vdd33a>;
                 reg-io-width = <4>;
                 smsc,save-mac-address;
         };
diff --git a/arch/arm/boot/dts/omap3-sbc-t3517.dts b/arch/arm/boot/dts/omap3-sbc-t3517.dts
index 024c9c6c682d..42189b65d393 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3517.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3517.dts
@@ -8,6 +8,19 @@
 / {
         model = "CompuLab SBC-T3517 with CM-T3517";
         compatible = "compulab,omap3-sbc-t3517", "compulab,omap3-cm-t3517", "ti,am3517", "ti,omap3";
+
+        /* Only one GPMC smsc9220 on SBC-T3517, CM-T3517 uses am35x Ethernet */
+        vddvario: regulator-vddvario-sb-t35 {
+                compatible = "regulator-fixed";
+                regulator-name = "vddvario";
+                regulator-always-on;
+        };
+
+        vdd33a: regulator-vdd33a-sb-t35 {
+                compatible = "regulator-fixed";
+                regulator-name = "vdd33a";
+                regulator-always-on;
+        };
 };
 
 &omap3_pmx_core {