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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e47043aea3
The OpenBlocks AX3-4 has a non-DT bootloader. It also comes with 1GB of soldered on RAM, and a DIMM slot for expansion. Unfortunately, atags_to_fdt() doesn't work in big-endian mode, so we see the following failure when attempting to boot a big-endian kernel: 686 slab pages 17 pages shared 0 pages swap cached [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name Kernel panic - not syncing: Out of memory and no killable processes... CPU: 1 PID: 351 Comm: kworker/u4:0 Not tainted 3.15.0-rc8-next-20140603 #1 [<c0215a54>] (unwind_backtrace) from [<c021160c>] (show_stack+0x10/0x14) [<c021160c>] (show_stack) from [<c0802500>] (dump_stack+0x78/0x94) [<c0802500>] (dump_stack) from [<c0800068>] (panic+0x90/0x21c) [<c0800068>] (panic) from [<c02b5704>] (out_of_memory+0x320/0x340) [<c02b5704>] (out_of_memory) from [<c02b93a0>] (__alloc_pages_nodemask+0x874/0x930) [<c02b93a0>] (__alloc_pages_nodemask) from [<c02d446c>] (handle_mm_fault+0x744/0x96c) [<c02d446c>] (handle_mm_fault) from [<c02cf250>] (__get_user_pages+0xd0/0x4c0) [<c02cf250>] (__get_user_pages) from [<c02f3598>] (get_arg_page+0x54/0xbc) [<c02f3598>] (get_arg_page) from [<c02f3878>] (copy_strings+0x278/0x29c) [<c02f3878>] (copy_strings) from [<c02f38bc>] (copy_strings_kernel+0x20/0x28) [<c02f38bc>] (copy_strings_kernel) from [<c02f4f1c>] (do_execve+0x3a8/0x4c8) [<c02f4f1c>] (do_execve) from [<c025ac10>] (____call_usermodehelper+0x15c/0x194) [<c025ac10>] (____call_usermodehelper) from [<c020e9b8>] (ret_from_fork+0x14/0x3c) CPU0: stopping CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.15.0-rc8-next-20140603 #1 [<c0215a54>] (unwind_backtrace) from [<c021160c>] (show_stack+0x10/0x14) [<c021160c>] (show_stack) from [<c0802500>] (dump_stack+0x78/0x94) [<c0802500>] (dump_stack) from [<c021429c>] (handle_IPI+0x138/0x174) [<c021429c>] (handle_IPI) from [<c02087f0>] (armada_370_xp_handle_irq+0xb0/0xcc) [<c02087f0>] (armada_370_xp_handle_irq) from [<c0212100>] (__irq_svc+0x40/0x50) Exception stack(0xc0b6bf68 to 0xc0b6bfb0) bf60: e9fad598 00000000 00f509a3 00000000 c0b6a000 c0b724c4 bf80: c0b72458 c0b6a000 00000000 00000000 c0b66da0 c0b6a000 00000000 c0b6bfb0 bfa0: c027bb94 c027bb24 60000313 ffffffff [<c0212100>] (__irq_svc) from [<c027bb24>] (cpu_startup_entry+0x54/0x214) [<c027bb24>] (cpu_startup_entry) from [<c0ac5b30>] (start_kernel+0x318/0x37c) [<c0ac5b30>] (start_kernel) from [<00208078>] (0x208078) ---[ end Kernel panic - not syncing: Out of memory and no killable processes... A similar failure will also occur if ARM_ATAG_DTB_COMPAT isn't selected. Fix this by setting a sane default (1 GB) in the dts file. Signed-off-by: Jason Cooper <jason@lakedaemon.net> Tested-by: Kevin Hilman <khilman@linaro.org> Cc: <stable@vger.kernel.org> #v3.13+ Signed-off-by: Arnd Bergmann <arnd@arndb.de>
190 lines
3.6 KiB
Plaintext
190 lines
3.6 KiB
Plaintext
/*
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* Device Tree file for OpenBlocks AX3-4 board
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*
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* Copyright (C) 2012 Marvell
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*
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* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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/dts-v1/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include "armada-xp-mv78260.dtsi"
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/ {
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model = "PlatHome OpenBlocks AX3-4 board";
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compatible = "plathome,openblocks-ax3-4", "marvell,armadaxp-mv78260", "marvell,armadaxp", "marvell,armada-370-xp";
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chosen {
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bootargs = "console=ttyS0,115200 earlyprintk";
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};
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memory {
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device_type = "memory";
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reg = <0 0x00000000 0 0x40000000>; /* 1 GB soldered on */
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};
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soc {
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ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
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MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
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MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x8000000>;
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devbus-bootcs {
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status = "okay";
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/* Device Bus parameters are required */
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/* Read parameters */
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devbus,bus-width = <16>;
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devbus,turn-off-ps = <60000>;
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devbus,badr-skew-ps = <0>;
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devbus,acc-first-ps = <124000>;
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devbus,acc-next-ps = <248000>;
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devbus,rd-setup-ps = <0>;
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devbus,rd-hold-ps = <0>;
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/* Write parameters */
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devbus,sync-enable = <0>;
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devbus,wr-high-ps = <60000>;
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devbus,wr-low-ps = <60000>;
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devbus,ale-wr-ps = <60000>;
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/* NOR 128 MiB */
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nor@0 {
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compatible = "cfi-flash";
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reg = <0 0x8000000>;
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bank-width = <2>;
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};
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};
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pcie-controller {
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status = "okay";
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/* Internal mini-PCIe connector */
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pcie@1,0 {
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/* Port 0, Lane 0 */
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status = "okay";
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};
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};
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internal-regs {
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serial@12000 {
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status = "okay";
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};
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serial@12100 {
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status = "okay";
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};
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pinctrl {
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led_pins: led-pins-0 {
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marvell,pins = "mpp49", "mpp51", "mpp53";
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marvell,function = "gpio";
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};
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-names = "default";
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pinctrl-0 = <&led_pins>;
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red_led {
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label = "red_led";
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gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
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default-state = "off";
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};
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yellow_led {
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label = "yellow_led";
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gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
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default-state = "off";
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};
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green_led {
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label = "green_led";
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gpios = <&gpio1 21 GPIO_ACTIVE_LOW>;
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default-state = "keep";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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#address-cells = <1>;
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#size-cells = <0>;
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button@1 {
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label = "Init Button";
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linux,code = <KEY_POWER>;
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gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
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};
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};
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mdio {
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phy0: ethernet-phy@0 {
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reg = <0>;
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};
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phy1: ethernet-phy@1 {
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reg = <1>;
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};
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phy2: ethernet-phy@2 {
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reg = <2>;
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};
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phy3: ethernet-phy@3 {
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reg = <3>;
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};
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};
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ethernet@70000 {
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status = "okay";
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phy = <&phy0>;
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phy-mode = "sgmii";
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};
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ethernet@74000 {
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status = "okay";
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phy = <&phy1>;
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phy-mode = "sgmii";
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};
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ethernet@30000 {
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status = "okay";
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phy = <&phy2>;
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phy-mode = "sgmii";
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};
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ethernet@34000 {
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status = "okay";
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phy = <&phy3>;
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phy-mode = "sgmii";
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};
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i2c@11000 {
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status = "okay";
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clock-frequency = <400000>;
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};
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i2c@11100 {
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status = "okay";
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clock-frequency = <400000>;
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s35390a: s35390a@30 {
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compatible = "s35390a";
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reg = <0x30>;
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};
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};
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sata@a0000 {
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nr-ports = <2>;
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status = "okay";
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};
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/* Front side USB 0 */
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usb@50000 {
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status = "okay";
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};
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/* Front side USB 1 */
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usb@51000 {
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status = "okay";
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};
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};
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};
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};
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