On Thu, May 04, 2017 at 09:50:05PM +0800, Icenowy Zheng wrote: > From: Chen-Yu Tsai <[email protected]> > > The Allwinner R40 SoC is marketed as the successor to the A20 SoC. > The R40 is a smaller chip than the A20, but features the same set > of programmable pins, with a couple extra pins and some new pin > functions. The chip features 4 Cortex-A7 cores and a Mali-400 MP2 > GPU. It retains most if not all features from the A20, while adding > some new features, such as MIPI DSI output, or updating various > hardware blocks, such as DE 2.0. > > Signed-off-by: Chen-Yu Tsai <[email protected]> > Signed-off-by: Icenowy Zheng <[email protected]> > --- > arch/arm/boot/dts/sun8i-r40.dtsi | 404 > +++++++++++++++++++++++++++++++++++++++ > 1 file changed, 404 insertions(+) > create mode 100644 arch/arm/boot/dts/sun8i-r40.dtsi > > diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi > b/arch/arm/boot/dts/sun8i-r40.dtsi > new file mode 100644 > index 000000000000..20d4705a8206 > --- /dev/null > +++ b/arch/arm/boot/dts/sun8i-r40.dtsi > @@ -0,0 +1,404 @@ > +/* > + * Copyright 2017 Chen-Yu Tsai <[email protected]> > + * Copyright 2017 Icenowy Zheng <[email protected]> > + * > + * 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 <dt-bindings/interrupt-controller/arm-gic.h> > +#include <dt-bindings/clock/sun8i-r40-ccu.h> > +#include <dt-bindings/reset/sun8i-r40-ccu.h> > + > +/ { > + #address-cells = <1>; > + #size-cells = <1>; > + interrupt-parent = <&gic>; > + > + aliases { > + }; > + > + chosen { > + };
These two are probably useless...
> + clocks {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + osc24M: osc24M {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <24000000>;
> + };
> +
> + osc32k: osc32k {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <32768>;
> + clock-output-names = "osc32k";
> + };
> + };
> +
> + 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>;
> + };
> + };
> +
> + memory {
> + device_type = "memory";
> + reg = <0x40000000 0x80000000>;
> + };
This one too.
> + soc@1c00000 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + nmi_intc: interrupt-controller@1c00030 {
> + compatible = "allwinner,sun7i-a20-sc-nmi";
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + reg = <0x01c00030 0x0c>;
> + interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
> + };
> +
> + mmc0: mmc@1c0f000 {
> + compatible = "allwinner,sun50i-a64-mmc";
> + reg = <0x01c0f000 0x1000>;
> + clocks = <&ccu CLK_BUS_MMC0>, <&ccu CLK_MMC0>;
> + clock-names = "ahb", "mmc";
> + resets = <&ccu RST_BUS_MMC0>;
> + reset-names = "ahb";
> + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
> + max-frequency = <150000000>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + mmc1: mmc@1c10000 {
> + compatible = "allwinner,sun50i-a64-mmc";
> + reg = <0x01c10000 0x1000>;
> + clocks = <&ccu CLK_BUS_MMC1>, <&ccu CLK_MMC1>;
> + clock-names = "ahb", "mmc";
> + resets = <&ccu RST_BUS_MMC1>;
> + reset-names = "ahb";
> + interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
> + max-frequency = <150000000>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + mmc2: mmc@1c11000 {
> + compatible = "allwinner,sun50i-a64-emmc";
> + reg = <0x01c11000 0x1000>;
> + clocks = <&ccu CLK_BUS_MMC2>, <&ccu CLK_MMC2>;
> + clock-names = "ahb", "mmc";
> + resets = <&ccu RST_BUS_MMC2>;
> + reset-names = "ahb";
> + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
> + max-frequency = <200000000>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + mmc3: mmc@1c12000 {
> + compatible = "allwinner,sun50i-a64-mmc";
This needs a specific compatible.
> + reg = <0x01c12000 0x1000>;
> + clocks = <&ccu CLK_BUS_MMC3>, <&ccu CLK_MMC3>;
> + clock-names = "ahb", "mmc";
> + resets = <&ccu RST_BUS_MMC3>;
> + reset-names = "ahb";
> + interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
> + max-frequency = <150000000>;
Did you actually test those frequencies?
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + ccu: clock@1c20000 {
> + compatible = "allwinner,sun8i-r40-ccu";
> + reg = <0x01c20000 0x400>;
> + clocks = <&osc24M>, <&osc32k>;
> + clock-names = "hosc", "losc";
This is very likely to be fed from the RTC.
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> + pio: pinctrl@1c20800 {
> + compatible = "allwinner,sun8i-r40-pinctrl";
> + reg = <0x01c20800 0x400>;
> + interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
> + clock-names = "apb", "hosc", "losc";
Here too.
> + gpio-controller;
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + #gpio-cells = <3>;
> +
> + i2c0_pins: twi0@0 {
> + pins = "PB0", "PB1";
> + function = "i2c0";
> + };
> +
> + mmc0_pins: mmc0@0 {
> + pins = "PF0", "PF1", "PF2",
> + "PF3", "PF4", "PF5";
> + function = "mmc0";
> + drive-strength = <30>;
> + bias-pull-up;
> + };
> +
> + mmc1_pins: mmc1@0 {
> + pins = "PG0", "PG1", "PG2",
> + "PG3", "PG4", "PG5";
> + function = "mmc1";
> + drive-strength = <30>;
> + bias-pull-up;
> + };
> +
> + mmc2_pins: mmc2@0 {
> + pins = "PC5", "PC6", "PC7", "PC8", "PC9",
> + "PC10", "PC11", "PC12", "PC13", "PC14",
> + "PC15", "PC24";
> + function = "mmc2";
> + drive-strength = <30>;
> + bias-pull-up;
> + };
This implies an 8 bit bus width, which is not that common, and not
your default in the MMC driver either.
> + uart0_pins_0: uart0@0 {
> + pins = "PB22", "PB23";
> + function = "uart0";
> + };
> + };
> +
> + uart0: serial@1c28000 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c28000 0x400>;
> + interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART0>;
> + resets = <&ccu RST_BUS_UART0>;
> + status = "disabled";
> + };
> +
> + uart1: serial@1c28400 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c28400 0x400>;
> + interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART1>;
> + resets = <&ccu RST_BUS_UART1>;
> + status = "disabled";
> + };
> +
> + uart2: serial@1c28800 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c28800 0x400>;
> + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART2>;
> + resets = <&ccu RST_BUS_UART2>;
> + status = "disabled";
> + };
> +
> + uart3: serial@1c28c00 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c28c00 0x400>;
> + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART3>;
> + resets = <&ccu RST_BUS_UART3>;
> + status = "disabled";
> + };
> +
> + uart4: serial@1c29000 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c29000 0x400>;
> + interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART4>;
> + resets = <&ccu RST_BUS_UART4>;
> + status = "disabled";
> + };
> +
> + uart5: serial@1c29400 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c29400 0x400>;
> + interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART5>;
> + resets = <&ccu RST_BUS_UART5>;
> + status = "disabled";
> + };
> +
> + uart6: serial@1c29800 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c29800 0x400>;
> + interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART6>;
> + resets = <&ccu RST_BUS_UART6>;
> + status = "disabled";
> + };
> +
> + uart7: serial@1c29c00 {
> + compatible = "snps,dw-apb-uart";
> + reg = <0x01c29c00 0x400>;
> + interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + reg-io-width = <4>;
> + clocks = <&ccu CLK_BUS_UART7>;
> + resets = <&ccu RST_BUS_UART7>;
> + status = "disabled";
> + };
> +
> + i2c0: i2c@1c2ac00 {
> + compatible = "allwinner,sun6i-a31-i2c";
> + reg = <0x01c2ac00 0x400>;
> + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_I2C0>;
> + resets = <&ccu RST_BUS_I2C0>;
> + pinctrl-0 = <&i2c0_pins>;
> + pinctrl-names = "default";
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + i2c1: i2c@1c2b000 {
> + compatible = "allwinner,sun6i-a31-i2c";
> + reg = <0x01c2b000 0x400>;
> + interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_I2C1>;
> + resets = <&ccu RST_BUS_I2C1>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + i2c2: i2c@1c2b400 {
> + compatible = "allwinner,sun6i-a31-i2c";
> + reg = <0x01c2b400 0x400>;
> + interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_I2C2>;
> + resets = <&ccu RST_BUS_I2C2>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + i2c3: i2c@1c2b800 {
> + compatible = "allwinner,sun6i-a31-i2c";
> + reg = <0x01c2b800 0x400>;
> + interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_I2C3>;
> + resets = <&ccu RST_BUS_I2C3>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + i2c4: i2c@1c2c000 {
> + compatible = "allwinner,sun6i-a31-i2c";
> + reg = <0x01c2c000 0x400>;
> + interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&ccu CLK_BUS_I2C4>;
> + resets = <&ccu RST_BUS_I2C4>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + gic: interrupt-controller@1c81000 {
> + 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)>;
> + };
> + };
> +
> + 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;
Is it true? U-boot doesn't setup those already?
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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