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Message-ID: <563614A3.6060805@gmail.com>
Date: Sun, 1 Nov 2015 14:33:23 +0100
From: Jens Kuske <jenskuske@...il.com>
To: Chen-Yu Tsai <wens@...e.org>
Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>,
Michael Turquette <mturquette@...libre.com>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Emilio López <emilio@...pez.com.ar>,
Vishnu Patekar <vishnupatekar0510@...il.com>,
Hans de Goede <hdegoede@...hat.com>,
devicetree <devicetree@...r.kernel.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH v4 5/6] ARM: dts: sunxi: Add Allwinner H3 DTSI
Hi,
On 30/10/15 08:33, Chen-Yu Tsai wrote:
> Hi,
>
> On Wed, Oct 28, 2015 at 12:50 AM, Jens Kuske <jenskuske@...il.com> wrote:
>> The Allwinner H3 is a home entertainment system oriented SoC with
>> four Cortex-A7 cores and a Mali-400MP2 GPU.
>>
>> Signed-off-by: Jens Kuske <jenskuske@...il.com>
>> ---
>> arch/arm/boot/dts/sun8i-h3.dtsi | 482 ++++++++++++++++++++++++++++++++++++++++
>> 1 file changed, 482 insertions(+)
>> create mode 100644 arch/arm/boot/dts/sun8i-h3.dtsi
>>
>> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
>> new file mode 100644
>> index 0000000..c18b5f7
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
>> @@ -0,0 +1,482 @@
>> +/*
>> + * Copyright (C) 2015 Jens Kuske <jenskuske@...il.com>
>> + *
>> + * 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 "skeleton.dtsi"
>> +
>> +#include <dt-bindings/interrupt-controller/arm-gic.h>
>> +#include <dt-bindings/pinctrl/sun4i-a10.h>
>> +
>> +/ {
>> + interrupt-parent = <&gic>;
>> +
>> + cpus {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + cpu@0 {
>> + compatible = "arm,cortex-a7";
>> + device_type = "cpu";
>> + reg = <0>;
>> + };
>> +
>> + cpu@1 {
>> + compatible = "arm,cortex-a7";
>> + device_type = "cpu";
>> + reg = <1>;
>> + };
>> +
>> + cpu@2 {
>> + compatible = "arm,cortex-a7";
>> + device_type = "cpu";
>> + reg = <2>;
>> + };
>> +
>> + cpu@3 {
>> + compatible = "arm,cortex-a7";
>> + device_type = "cpu";
>> + reg = <3>;
>> + };
>> + };
>> +
>> + timer {
>> + compatible = "arm,armv7-timer";
>> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
>> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
>> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
>> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
>> + clock-frequency = <24000000>;
>> + arm,cpu-registers-not-fw-configured;
>> + };
>> +
>> + memory {
>> + reg = <0x40000000 0x80000000>;
>> + };
>> +
>> + clocks {
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + osc24M: osc24M_clk {
>> + #clock-cells = <0>;
>> + compatible = "fixed-clock";
>> + clock-frequency = <24000000>;
>> + clock-output-names = "osc24M";
>> + };
>> +
>> + osc32k: osc32k_clk {
>> + #clock-cells = <0>;
>> + compatible = "fixed-clock";
>> + clock-frequency = <32768>;
>> + clock-output-names = "osc32k";
>> + };
>> +
>> + pll1: clk@...20000 {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun8i-a23-pll1-clk";
>> + reg = <0x01c20000 0x4>;
>> + clocks = <&osc24M>;
>> + clock-output-names = "pll1";
>> + };
>> +
>> + /* dummy clock until actually implemented */
>> + pll5: pll5_clk {
>> + #clock-cells = <0>;
>> + compatible = "fixed-clock";
>> + clock-frequency = <0>;
>> + clock-output-names = "pll5";
>> + };
>> +
>> + pll6: clk@...20028 {
>> + #clock-cells = <1>;
>> + compatible = "allwinner,sun6i-a31-pll6-clk";
>> + reg = <0x01c20028 0x4>;
>> + clocks = <&osc24M>;
>> + clock-output-names = "pll6", "pll6x2", "pll6d2";
>
> What's the extra "pll6d2"? If you have an extra output, it's not compatible with
> "allwinner,sun6i-a31-pll6-clk".
>
>> + };
>> +
>> + pll8: clk@...20044 {
>> + #clock-cells = <1>;
>> + compatible = "allwinner,sun6i-a31-pll6-clk";
>> + reg = <0x01c20044 0x4>;
>> + clocks = <&osc24M>;
>> + clock-output-names = "pll8", "pll8x2";
>> + };
>> +
>> + cpu: cpu_clk@...20050 {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun4i-a10-cpu-clk";
>> + reg = <0x01c20050 0x4>;
>> + clocks = <&osc32k>, <&osc24M>, <&pll1>, <&pll1>;
>> + clock-output-names = "cpu";
>> + };
>> +
>> + axi: axi_clk@...20050 {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun4i-a10-axi-clk";
>> + reg = <0x01c20050 0x4>;
>> + clocks = <&cpu>;
>> + clock-output-names = "axi";
>> + };
>> +
>> + ahb1: ahb1_clk@...20054 {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun6i-a31-ahb1-clk";
>> + reg = <0x01c20054 0x4>;
>> + clocks = <&osc32k>, <&osc24M>, <&axi>, <&pll6 0>;
>> + clock-output-names = "ahb1";
>> + };
>> +
>> + ahb2: ahb2_clk@...2005c {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun8i-h3-ahb2-clk";
>> + reg = <0x01c2005c 0x4>;
>> + clocks = <&ahb1>, <&pll6 2>;
>
> And this would be wrong if you don't update the pll6 compatible or driver.
> There's no output on n = 2.
>
> You could also chain a fixed divider directly in the driver.
>
>> + clock-output-names = "ahb2";
>> + };
>> +
>> + apb1: apb1_clk@...20054 {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun4i-a10-apb0-clk";
>> + reg = <0x01c20054 0x4>;
>> + clocks = <&ahb1>;
>> + clock-output-names = "apb1";
>> + };
>> +
>> + apb2: apb2_clk@...20058 {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun4i-a10-apb1-clk";
>> + reg = <0x01c20058 0x4>;
>> + clocks = <&osc32k>, <&osc24M>, <&pll6 0>, <&pll6 0>;
>> + clock-output-names = "apb2";
>> + };
>> +
>> + bus_gates: clk@...20060 {
>> + #clock-cells = <1>;
>> + compatible = "allwinner,sun8i-h3-bus-gates-clk";
>> + reg = <0x01c20060 0x14>;
>> + clocks = <&ahb1>, <&ahb2>, <&apb1>, <&apb2>;
>> + clock-names = "ahb1", "ahb2", "apb1", "apb2";
>> + clock-indices = <5>, <6>, <8>,
>> + <9>, <10>, <13>,
>> + <14>, <17>, <18>,
>> + <19>, <20>,
>> + <21>, <23>,
>> + <24>, <25>,
>> + <26>, <27>,
>> + <28>, <29>,
>> + <30>, <31>, <32>,
>> + <35>, <36>, <37>,
>> + <40>, <41>, <43>,
>> + <44>, <52>, <53>,
>> + <54>, <64>,
>> + <65>, <69>, <72>,
>> + <76>, <77>, <78>,
>> + <96>, <97>, <98>,
>> + <112>, <113>,
>> + <114>, <115>, <116>,
>> + <128>, <135>;
>> + clock-output-names = "ahb1_ce", "ahb1_dma", "ahb1_mmc0",
>> + "ahb1_mmc1", "ahb1_mmc2", "ahb1_nand",
>> + "ahb1_sdram", "ahb2_gmac", "ahb1_ts",
>> + "ahb1_hstimer", "ahb1_spi0",
>> + "ahb1_spi1", "ahb1_otg",
>> + "ahb1_otg_ehci0", "ahb1_ehic1",
>
> ahb1_ehci1? Same for the following 3 lines.
I'll fix them...
>
>> + "ahb1_ehic2", "ahb1_ehic3",
>> + "ahb1_otg_ohci0", "ahb2_ohic1",
>> + "ahb2_ohic2", "ahb2_ohic3", "ahb1_ve",
>> + "ahb1_lcd0", "ahb1_lcd1", "ahb1_deint",
>> + "ahb1_csi", "ahb1_tve", "ahb1_hdmi",
>> + "ahb1_de", "ahb1_gpu", "ahb1_msgbox",
>> + "ahb1_spinlock", "apb1_codec",
>> + "apb1_spdif", "apb1_pio", "apb1_ths",
>> + "apb1_i2s0", "apb1_i2s1", "apb1_i2s2",
>> + "apb2_i2c0", "apb2_i2c1", "apb2_i2c2",
>> + "apb2_uart0", "apb2_uart1",
>> + "apb2_uart2", "apb2_uart3", "apb2_scr",
>> + "ahb1_ephy", "ahb1_dbg";
>
> If it weren't for the last 2 clocks, we could cleanly split out apb1 and apb2
> gates. Having a separate AHB clock gate taking 2 addresses seems messy
> as well. :(
Well, maybe we still should do that, if we split the resets too at least
apb[12] would line up again.
I don't know what to do with these bus things any more, all variants I
sent had issues somewhere...
>
>> + };
>> +
>> + mmc0_clk: clk@...20088 {
>> + #clock-cells = <1>;
>> + compatible = "allwinner,sun4i-a10-mmc-clk";
>> + reg = <0x01c20088 0x4>;
>> + clocks = <&osc24M>, <&pll6 0>, <&pll8 0>;
>> + clock-output-names = "mmc0",
>> + "mmc0_output",
>> + "mmc0_sample";
>> + };
>> +
>> + mmc1_clk: clk@...2008c {
>> + #clock-cells = <1>;
>> + compatible = "allwinner,sun4i-a10-mmc-clk";
>> + reg = <0x01c2008c 0x4>;
>> + clocks = <&osc24M>, <&pll6 0>, <&pll8 0>;
>> + clock-output-names = "mmc1",
>> + "mmc1_output",
>> + "mmc1_sample";
>> + };
>> +
>> + mmc2_clk: clk@...20090 {
>> + #clock-cells = <1>;
>> + compatible = "allwinner,sun4i-a10-mmc-clk";
>> + reg = <0x01c20090 0x4>;
>> + clocks = <&osc24M>, <&pll6 0>, <&pll8 0>;
>> + clock-output-names = "mmc2",
>> + "mmc2_output",
>> + "mmc2_sample";
>> + };
>> +
>> + mbus_clk: clk@...2015c {
>> + #clock-cells = <0>;
>> + compatible = "allwinner,sun8i-a23-mbus-clk";
>> + reg = <0x01c2015c 0x4>;
>> + clocks = <&osc24M>, <&pll6 1>, <&pll5>;
>> + clock-output-names = "mbus";
>> + };
>> + };
>> +
>> + soc {
>> + compatible = "simple-bus";
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + dma: dma-controller@...02000 {
>> + compatible = "allwinner,sun8i-h3-dma";
>> + reg = <0x01c02000 0x1000>;
>> + interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&bus_gates 6>;
>> + resets = <&bus_rst 6>;
>> + #dma-cells = <1>;
>> + };
>> +
>> + mmc0: mmc@...0f000 {
>> + compatible = "allwinner,sun5i-a13-mmc";
>> + reg = <0x01c0f000 0x1000>;
>> + clocks = <&bus_gates 8>,
>> + <&mmc0_clk 0>,
>> + <&mmc0_clk 1>,
>> + <&mmc0_clk 2>;
>> + clock-names = "ahb",
>> + "mmc",
>> + "output",
>> + "sample";
>> + resets = <&bus_rst 8>;
>> + reset-names = "ahb";
>> + interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
>> + status = "disabled";
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + };
>> +
>> + mmc1: mmc@...10000 {
>> + compatible = "allwinner,sun5i-a13-mmc";
>> + reg = <0x01c10000 0x1000>;
>> + clocks = <&bus_gates 9>,
>> + <&mmc1_clk 0>,
>> + <&mmc1_clk 1>,
>> + <&mmc1_clk 2>;
>> + clock-names = "ahb",
>> + "mmc",
>> + "output",
>> + "sample";
>> + resets = <&bus_rst 9>;
>> + reset-names = "ahb";
>> + interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
>> + status = "disabled";
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + };
>> +
>> + mmc2: mmc@...11000 {
>> + compatible = "allwinner,sun5i-a13-mmc";
>> + reg = <0x01c11000 0x1000>;
>> + clocks = <&bus_gates 10>,
>> + <&mmc2_clk 0>,
>> + <&mmc2_clk 1>,
>> + <&mmc2_clk 2>;
>> + clock-names = "ahb",
>> + "mmc",
>> + "output",
>> + "sample";
>> + resets = <&bus_rst 10>;
>> + reset-names = "ahb";
>> + interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
>> + status = "disabled";
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + };
>> +
>> + pio: pinctrl@...20800 {
>> + compatible = "allwinner,sun8i-h3-pinctrl";
>> + reg = <0x01c20800 0x400>;
>> + interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&bus_gates 69>;
>> + gpio-controller;
>> + #gpio-cells = <3>;
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> +
>> + uart0_pins_a: uart0@0 {
>> + allwinner,pins = "PA4", "PA5";
>> + allwinner,function = "uart0";
>> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
>> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>> + };
>> +
>> + mmc0_pins_a: mmc0@0 {
>> + allwinner,pins = "PF0", "PF1", "PF2", "PF3",
>> + "PF4", "PF5";
>> + allwinner,function = "mmc0";
>> + allwinner,drive = <SUN4I_PINCTRL_30_MA>;
>> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>> + };
>> +
>> + mmc0_cd_pin: mmc0_cd_pin@0 {
>> + allwinner,pins = "PF6";
>> + allwinner,function = "gpio_in";
>> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
>> + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
>> + };
>
> This should be in the board DTS, unless this is the reference design,
> in which case you should name the label like "mmc0_cd_pin_reference_design".
>
The datasheet mentions SDC0_DET function on PF6, so I thought this is
sort of fixed to this pin now. All designs I've seen use this pin.
Jens
>> +
>> + mmc1_pins_a: mmc1@0 {
>> + allwinner,pins = "PG0", "PG1", "PG2", "PG3",
>> + "PG4", "PG5";
>> + allwinner,function = "mmc1";
>> + allwinner,drive = <SUN4I_PINCTRL_30_MA>;
>> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>> + };
>> + };
>> +
>> + bus_rst: reset@...202c0 {
>> + #reset-cells = <1>;
>> + compatible = "allwinner,sun8i-h3-bus-reset";
>> + reg = <0x01c202c0 0x1c>;
>> + };
>> +
>> + timer@...20c00 {
>> + compatible = "allwinner,sun4i-a10-timer";
>> + reg = <0x01c20c00 0xa0>;
>> + interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&osc24M>;
>> + };
>> +
>> + wdt0: watchdog@...20ca0 {
>> + compatible = "allwinner,sun6i-a31-wdt";
>> + reg = <0x01c20ca0 0x20>;
>> + interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
>> + };
>> +
>> + uart0: serial@...28000 {
>> + compatible = "snps,dw-apb-uart";
>> + reg = <0x01c28000 0x400>;
>> + interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
>> + reg-shift = <2>;
>> + reg-io-width = <4>;
>> + clocks = <&bus_gates 112>;
>> + resets = <&bus_rst 144>;
>
> Aren't you handling the holes in the bus_rst driver? If so,
> isn't it supposed to align both bus_gates and bus_rst indexes?
>
> Same for the other UARTs.
>
> Thanks
>
> Regards
> ChenYu
>
>> + dmas = <&dma 6>, <&dma 6>;
>> + dma-names = "rx", "tx";
>> + status = "disabled";
>> + };
>> +
>> + uart1: serial@...28400 {
>> + compatible = "snps,dw-apb-uart";
>> + reg = <0x01c28400 0x400>;
>> + interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
>> + reg-shift = <2>;
>> + reg-io-width = <4>;
>> + clocks = <&bus_gates 113>;
>> + resets = <&bus_rst 145>;
>> + dmas = <&dma 7>, <&dma 7>;
>> + dma-names = "rx", "tx";
>> + status = "disabled";
>> + };
>> +
>> + uart2: serial@...28800 {
>> + compatible = "snps,dw-apb-uart";
>> + reg = <0x01c28800 0x400>;
>> + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
>> + reg-shift = <2>;
>> + reg-io-width = <4>;
>> + clocks = <&bus_gates 114>;
>> + resets = <&bus_rst 146>;
>> + dmas = <&dma 8>, <&dma 8>;
>> + dma-names = "rx", "tx";
>> + status = "disabled";
>> + };
>> +
>> + uart3: serial@...28c00 {
>> + compatible = "snps,dw-apb-uart";
>> + reg = <0x01c28c00 0x400>;
>> + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
>> + reg-shift = <2>;
>> + reg-io-width = <4>;
>> + clocks = <&bus_gates 115>;
>> + resets = <&bus_rst 147>;
>> + dmas = <&dma 9>, <&dma 9>;
>> + dma-names = "rx", "tx";
>> + status = "disabled";
>> + };
>> +
>> + gic: interrupt-controller@...81000 {
>> + compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
>> + reg = <0x01c81000 0x1000>,
>> + <0x01c82000 0x1000>,
>> + <0x01c84000 0x2000>,
>> + <0x01c86000 0x2000>;
>> + interrupt-controller;
>> + #interrupt-cells = <3>;
>> + interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
>> + };
>> +
>> + rtc: rtc@...00000 {
>> + compatible = "allwinner,sun6i-a31-rtc";
>> + reg = <0x01f00000 0x54>;
>> + interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
>> + };
>> + };
>> +};
>> --
>> 2.6.2
>>
>
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