The first variants of Openblocks AX3-4 used the revision A0 of the
Armada XP SoCs. These early variants have issues related to the i2c
controller which prevent to use the offload mechanism and lead to a
kernel hang during boot.
The new dts file uses the compatible string marvell,mv78230-a0-i2c for
the i2c controller, thanks to this the driver disable the offload
mechanism and the kernel no more hangs on these boards.
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
---
.../arm/boot/dts/armada-xp-a0-openblocks-ax3-4.dts | 40 +++++
.../dts/armada-xp-common-openblocks-ax3-4.dtsi | 177 +++++++++++++++++++++
arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts | 164 +------------------
3 files changed, 218 insertions(+), 163 deletions(-)
create mode 100644 arch/arm/boot/dts/armada-xp-a0-openblocks-ax3-4.dts
create mode 100644 arch/arm/boot/dts/armada-xp-common-openblocks-ax3-4.dtsi
diff --git a/arch/arm/boot/dts/armada-xp-a0-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-a0-openblocks-ax3-4.dts
new file mode 100644
index 000000000000..b3ea65255c19
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-a0-openblocks-ax3-4.dts
@@ -0,0 +1,40 @@
+/*
+ * Device Tree file for OpenBlocks AX3-4 board with A0 SoC
+ *
+ * Copyright (C) 2012 Marvell
+ *
+ * Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "armada-xp-common-openblocks-ax3-4.dtsi"
+
+/ {
+ model = "PlatHome OpenBlocks AX3-4 board (A0 SoC)";
+ compatible = "plathome,openblocks-ax3-4", "marvell,armadaxp-mv78260", "marvell,armadaxp", "marvell,armada-370-xp";
+
+ chosen {
+ bootargs = "console=ttyS0,115200 earlyprintk";
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0 0x00000000 0 0xC0000000>; /* 3 GB */
+ };
+
+ soc {
+
+ internal-regs {
+ i2c@11000 {
+ compatible = "marvell,mv78230-a0-i2c", "marvell,mv64xxx-i2c";
+ };
+ i2c@11100 {
+ compatible = "marvell,mv78230-a0-i2c", "marvell,mv64xxx-i2c";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/armada-xp-common-openblocks-ax3-4.dtsi b/arch/arm/boot/dts/armada-xp-common-openblocks-ax3-4.dtsi
new file mode 100644
index 000000000000..0d452b07baf5
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-common-openblocks-ax3-4.dtsi
@@ -0,0 +1,177 @@
+/*
+ * Device Tree file for OpenBlocks AX3-4 board
+ *
+ * Copyright (C) 2012 Marvell
+ *
+ * Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include "armada-xp-mv78260.dtsi"
+
+/ {
+ soc {
+ ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
+ MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
+ MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x8000000>;
+
+ devbus-bootcs {
+ status = "okay";
+
+ /* Device Bus parameters are required */
+
+ /* Read parameters */
+ devbus,bus-width = <8>;
+ devbus,turn-off-ps = <60000>;
+ devbus,badr-skew-ps = <0>;
+ devbus,acc-first-ps = <124000>;
+ devbus,acc-next-ps = <248000>;
+ devbus,rd-setup-ps = <0>;
+ devbus,rd-hold-ps = <0>;
+
+ /* Write parameters */
+ devbus,sync-enable = <0>;
+ devbus,wr-high-ps = <60000>;
+ devbus,wr-low-ps = <60000>;
+ devbus,ale-wr-ps = <60000>;
+
+ /* NOR 128 MiB */
+ nor@0 {
+ compatible = "cfi-flash";
+ reg = <0 0x8000000>;
+ bank-width = <2>;
+ };
+ };
+
+ pcie-controller {
+ status = "okay";
+ /* Internal mini-PCIe connector */
+ pcie@1,0 {
+ /* Port 0, Lane 0 */
+ status = "okay";
+ };
+ };
+
+ internal-regs {
+ serial@12000 {
+ clock-frequency = <250000000>;
+ status = "okay";
+ };
+ serial@12100 {
+ clock-frequency = <250000000>;
+ status = "okay";
+ };
+ pinctrl {
+ led_pins: led-pins-0 {
+ marvell,pins = "mpp49", "mpp51", "mpp53";
+ marvell,function = "gpio";
+ };
+ };
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&led_pins>;
+
+ red_led {
+ label = "red_led";
+ gpios = <&gpio1 17 1>;
+ default-state = "off";
+ };
+
+ yellow_led {
+ label = "yellow_led";
+ gpios = <&gpio1 19 1>;
+ default-state = "off";
+ };
+
+ green_led {
+ label = "green_led";
+ gpios = <&gpio1 21 1>;
+ default-state = "off";
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ button@1 {
+ label = "Init Button";
+ linux,code = <116>;
+ gpios = <&gpio1 28 0>;
+ };
+ };
+
+ mdio {
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+
+ phy2: ethernet-phy@2 {
+ reg = <2>;
+ };
+
+ phy3: ethernet-phy@3 {
+ reg = <3>;
+ };
+ };
+
+ ethernet@70000 {
+ status = "okay";
+ phy = <&phy0>;
+ phy-mode = "sgmii";
+ };
+ ethernet@74000 {
+ status = "okay";
+ phy = <&phy1>;
+ phy-mode = "sgmii";
+ };
+ ethernet@30000 {
+ status = "okay";
+ phy = <&phy2>;
+ phy-mode = "sgmii";
+ };
+ ethernet@34000 {
+ status = "okay";
+ phy = <&phy3>;
+ phy-mode = "sgmii";
+ };
+ i2c@11000 {
+ status = "okay";
+ clock-frequency = <400000>;
+ };
+ i2c@11100 {
+ status = "okay";
+ clock-frequency = <400000>;
+
+ s35390a: s35390a@30 {
+ compatible = "s35390a";
+ reg = <0x30>;
+ };
+ };
+ sata@a0000 {
+ nr-ports = <2>;
+ status = "okay";
+ };
+
+ /* Front side USB 0 */
+ usb@50000 {
+ status = "okay";
+ };
+
+ /* Front side USB 1 */
+ usb@51000 {
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
index 5695afcc04bf..1983de77c3ff 100644
--- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
+++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
@@ -11,7 +11,7 @@
*/
/dts-v1/;
-#include "armada-xp-mv78260.dtsi"
+#include "armada-xp-common-openblocks-ax3-4.dtsi"
/ {
model = "PlatHome OpenBlocks AX3-4 board";
@@ -25,166 +25,4 @@
device_type = "memory";
reg = <0 0x00000000 0 0xC0000000>; /* 3 GB */
};
-
- soc {
- ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
- MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
- MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x8000000>;
-
- devbus-bootcs {
- status = "okay";
-
- /* Device Bus parameters are required */
-
- /* Read parameters */
- devbus,bus-width = <8>;
- devbus,turn-off-ps = <60000>;
- devbus,badr-skew-ps = <0>;
- devbus,acc-first-ps = <124000>;
- devbus,acc-next-ps = <248000>;
- devbus,rd-setup-ps = <0>;
- devbus,rd-hold-ps = <0>;
-
- /* Write parameters */
- devbus,sync-enable = <0>;
- devbus,wr-high-ps = <60000>;
- devbus,wr-low-ps = <60000>;
- devbus,ale-wr-ps = <60000>;
-
- /* NOR 128 MiB */
- nor@0 {
- compatible = "cfi-flash";
- reg = <0 0x8000000>;
- bank-width = <2>;
- };
- };
-
- pcie-controller {
- status = "okay";
- /* Internal mini-PCIe connector */
- pcie@1,0 {
- /* Port 0, Lane 0 */
- status = "okay";
- };
- };
-
- internal-regs {
- serial@12000 {
- clock-frequency = <250000000>;
- status = "okay";
- };
- serial@12100 {
- clock-frequency = <250000000>;
- status = "okay";
- };
- pinctrl {
- led_pins: led-pins-0 {
- marvell,pins = "mpp49", "mpp51", "mpp53";
- marvell,function = "gpio";
- };
- };
- leds {
- compatible = "gpio-leds";
- pinctrl-names = "default";
- pinctrl-0 = <&led_pins>;
-
- red_led {
- label = "red_led";
- gpios = <&gpio1 17 1>;
- default-state = "off";
- };
-
- yellow_led {
- label = "yellow_led";
- gpios = <&gpio1 19 1>;
- default-state = "off";
- };
-
- green_led {
- label = "green_led";
- gpios = <&gpio1 21 1>;
- default-state = "off";
- linux,default-trigger = "heartbeat";
- };
- };
-
- gpio_keys {
- compatible = "gpio-keys";
- #address-cells = <1>;
- #size-cells = <0>;
-
- button@1 {
- label = "Init Button";
- linux,code = <116>;
- gpios = <&gpio1 28 0>;
- };
- };
-
- mdio {
- phy0: ethernet-phy@0 {
- reg = <0>;
- };
-
- phy1: ethernet-phy@1 {
- reg = <1>;
- };
-
- phy2: ethernet-phy@2 {
- reg = <2>;
- };
-
- phy3: ethernet-phy@3 {
- reg = <3>;
- };
- };
-
- ethernet@70000 {
- status = "okay";
- phy = <&phy0>;
- phy-mode = "sgmii";
- };
- ethernet@74000 {
- status = "okay";
- phy = <&phy1>;
- phy-mode = "sgmii";
- };
- ethernet@30000 {
- status = "okay";
- phy = <&phy2>;
- phy-mode = "sgmii";
- };
- ethernet@34000 {
- status = "okay";
- phy = <&phy3>;
- phy-mode = "sgmii";
- };
- i2c@11000 {
- status = "okay";
- clock-frequency = <400000>;
- };
- i2c@11100 {
- status = "okay";
- clock-frequency = <400000>;
-
- s35390a: s35390a@30 {
- compatible = "s35390a";
- reg = <0x30>;
- };
- };
- sata@a0000 {
- nr-ports = <2>;
- status = "okay";
- };
-
- /* Front side USB 0 */
- usb@50000 {
- status = "okay";
- };
-
- /* Front side USB 1 */
- usb@51000 {
- status = "okay";
- };
- };
- };
};
--
1.8.1.2
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