linux/arch/arm/boot/dts/sun8i-a33.dtsi
Quentin Schulz 28787bf47b ARM: sun8i: a33: remove highest OPP to fix CPU crashes
The highest supported frequency (1.2GHz) requires to "overvolt" the CPU.
However, some boards still do not have the cpu-supply DT property in the
cpu DT node which means that the CPU will always run with the same input
voltage but try to run at 1.2GHz frequency. This is the source of
(experienced) CPU crashes.

Remove the OPP which requires overvolting the CPU until all boards have
a cpu-supply property.

Fixes: 03749eb88e ("ARM: dts: sun8i: add opp-v2 table for A33")
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-21 16:57:00 +01:00

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/*
* Copyright 2014 Chen-Yu Tsai
*
* Chen-Yu Tsai <wens@csie.org>
*
* This file is dual-licensed: you can use it either under the terms
* of the GPL or the X11 license, at your option. Note that this dual
* licensing only applies to this file, and not this project as a
* whole.
*
* a) This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Or, alternatively,
*
* b) Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "sun8i-a23-a33.dtsi"
/ {
cpu0_opp_table: opp_table0 {
compatible = "operating-points-v2";
opp-shared;
opp@648000000 {
opp-hz = /bits/ 64 <648000000>;
opp-microvolt = <1040000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
opp@816000000 {
opp-hz = /bits/ 64 <816000000>;
opp-microvolt = <1100000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
opp@1008000000 {
opp-hz = /bits/ 64 <1008000000>;
opp-microvolt = <1200000>;
clock-latency-ns = <244144>; /* 8 32k periods */
};
};
cpus {
cpu@0 {
clocks = <&ccu CLK_CPUX>;
clock-names = "cpu";
operating-points-v2 = <&cpu0_opp_table>;
};
cpu@2 {
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <2>;
};
cpu@3 {
compatible = "arm,cortex-a7";
device_type = "cpu";
reg = <3>;
};
};
de: display-engine {
compatible = "allwinner,sun8i-a33-display-engine";
allwinner,pipelines = <&fe0>;
status = "disabled";
};
memory {
reg = <0x40000000 0x80000000>;
};
sound: sound {
compatible = "simple-audio-card";
simple-audio-card,name = "sun8i-a33-audio";
simple-audio-card,format = "i2s";
simple-audio-card,frame-master = <&link_codec>;
simple-audio-card,bitclock-master = <&link_codec>;
simple-audio-card,mclk-fs = <512>;
simple-audio-card,aux-devs = <&codec_analog>;
simple-audio-card,routing =
"Left DAC", "Digital Left DAC",
"Right DAC", "Digital Right DAC";
status = "disabled";
simple-audio-card,cpu {
sound-dai = <&dai>;
};
link_codec: simple-audio-card,codec {
sound-dai = <&codec>;
};
};
soc@01c00000 {
tcon0: lcd-controller@01c0c000 {
compatible = "allwinner,sun8i-a33-tcon";
reg = <0x01c0c000 0x1000>;
interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_LCD>,
<&ccu CLK_LCD_CH0>;
clock-names = "ahb",
"tcon-ch0";
clock-output-names = "tcon-pixel-clock";
resets = <&ccu RST_BUS_LCD>;
reset-names = "lcd";
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
tcon0_in: port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
tcon0_in_drc0: endpoint@0 {
reg = <0>;
remote-endpoint = <&drc0_out_tcon0>;
};
};
tcon0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
};
};
};
crypto: crypto-engine@01c15000 {
compatible = "allwinner,sun4i-a10-crypto";
reg = <0x01c15000 0x1000>;
interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_SS>, <&ccu CLK_SS>;
clock-names = "ahb", "mod";
resets = <&ccu RST_BUS_SS>;
reset-names = "ahb";
};
dai: dai@01c22c00 {
#sound-dai-cells = <0>;
compatible = "allwinner,sun6i-a31-i2s";
reg = <0x01c22c00 0x200>;
interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_AC_DIG>;
clock-names = "apb", "mod";
resets = <&ccu RST_BUS_CODEC>;
dmas = <&dma 15>, <&dma 15>;
dma-names = "rx", "tx";
status = "disabled";
};
codec: codec@01c22e00 {
#sound-dai-cells = <0>;
compatible = "allwinner,sun8i-a33-codec";
reg = <0x01c22e00 0x400>;
interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_AC_DIG>;
clock-names = "bus", "mod";
status = "disabled";
};
fe0: display-frontend@01e00000 {
compatible = "allwinner,sun8i-a33-display-frontend";
reg = <0x01e00000 0x20000>;
interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_DE_FE>, <&ccu CLK_DE_FE>,
<&ccu CLK_DRAM_DE_FE>;
clock-names = "ahb", "mod",
"ram";
resets = <&ccu RST_BUS_DE_FE>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
fe0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
fe0_out_be0: endpoint@0 {
reg = <0>;
remote-endpoint = <&be0_in_fe0>;
};
};
};
};
be0: display-backend@01e60000 {
compatible = "allwinner,sun8i-a33-display-backend";
reg = <0x01e60000 0x10000>, <0x01e80000 0x1000>;
reg-names = "be", "sat";
interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_DE_BE>, <&ccu CLK_DE_BE>,
<&ccu CLK_DRAM_DE_BE>, <&ccu CLK_BUS_SAT>;
clock-names = "ahb", "mod",
"ram", "sat";
resets = <&ccu RST_BUS_DE_BE>, <&ccu RST_BUS_SAT>;
reset-names = "be", "sat";
assigned-clocks = <&ccu CLK_DE_BE>;
assigned-clock-rates = <300000000>;
ports {
#address-cells = <1>;
#size-cells = <0>;
be0_in: port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
be0_in_fe0: endpoint@0 {
reg = <0>;
remote-endpoint = <&fe0_out_be0>;
};
};
be0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
be0_out_drc0: endpoint@0 {
reg = <0>;
remote-endpoint = <&drc0_in_be0>;
};
};
};
};
drc0: drc@01e70000 {
compatible = "allwinner,sun8i-a33-drc";
reg = <0x01e70000 0x10000>;
interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_BUS_DRC>, <&ccu CLK_DRC>,
<&ccu CLK_DRAM_DRC>;
clock-names = "ahb", "mod", "ram";
resets = <&ccu RST_BUS_DRC>;
assigned-clocks = <&ccu CLK_DRC>;
assigned-clock-rates = <300000000>;
ports {
#address-cells = <1>;
#size-cells = <0>;
drc0_in: port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
drc0_in_be0: endpoint@0 {
reg = <0>;
remote-endpoint = <&be0_out_drc0>;
};
};
drc0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
drc0_out_tcon0: endpoint@0 {
reg = <0>;
remote-endpoint = <&tcon0_in_drc0>;
};
};
};
};
};
};
&ccu {
compatible = "allwinner,sun8i-a33-ccu";
};
&pio {
compatible = "allwinner,sun8i-a33-pinctrl";
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
uart0_pins_b: uart0@1 {
pins = "PB0", "PB1";
function = "uart0";
};
};
&usb_otg {
compatible = "allwinner,sun8i-a33-musb";
};
&usbphy {
compatible = "allwinner,sun8i-a33-usb-phy";
reg = <0x01c19400 0x14>, <0x01c1a800 0x4>;
reg-names = "phy_ctrl", "pmu1";
};