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 <[email protected]> --- .../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 <[email protected]> + * + * 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 <[email protected]> + * + * 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 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
