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Date: Sun, 17 Jan 2021 22:35:56 -0600
From: Samuel Holland <samuel@...lland.org>
To: Andre Przywara <andre.przywara@....com>,
Maxime Ripard <mripard@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...l.net>
Cc: Icenowy Zheng <icenowy@...c.io>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh@...nel.org>,
Clément Péron <peron.clem@...il.com>,
Shuosheng Huang <huangshuosheng@...winnertech.com>,
Yangtao Li <tiny.windzz@...il.com>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-sunxi@...glegroups.com, devicetree@...r.kernel.org
Subject: Re: [PATCH v3 19/21] arm64: dts: allwinner: Add Allwinner H616 .dtsi
file
On 1/17/21 8:08 PM, Andre Przywara wrote:
> This (relatively) new SoC is similar to the H6, but drops the (broken)
> PCIe support and the USB 3.0 controller. It also gets the management
> controller removed, which in turn removes *some*, but not all of the
> devices formerly dedicated to the ARISC (CPUS).
> There does not seem to be an extra interrupt controller anymore, also
> it lacks the corresponding NMI pin, so no interrupts for the PMIC.
>
> Signed-off-by: Andre Przywara <andre.przywara@....com>
> ---
> .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 750 ++++++++++++++++++
> 1 file changed, 750 insertions(+)
> create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> new file mode 100644
> index 000000000000..953e8fac20f0
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> @@ -0,0 +1,750 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +// Copyright (C) 2020 Arm Ltd.
> +// based on the H6 dtsi, which is:
> +// Copyright (C) 2017 Icenowy Zheng <icenowy@...c.io>
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/sun50i-h616-ccu.h>
> +#include <dt-bindings/clock/sun50i-h6-r-ccu.h>
> +#include <dt-bindings/reset/sun50i-h616-ccu.h>
> +#include <dt-bindings/reset/sun50i-h6-r-ccu.h>
> +
> +/ {
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + reg = <0>;
> + enable-method = "psci";
> + clocks = <&ccu CLK_CPUX>;
> + };
> +
> + cpu1: cpu@1 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + reg = <1>;
> + enable-method = "psci";
> + clocks = <&ccu CLK_CPUX>;
> + };
> +
> + cpu2: cpu@2 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + reg = <2>;
> + enable-method = "psci";
> + clocks = <&ccu CLK_CPUX>;
> + };
> +
> + cpu3: cpu@3 {
> + compatible = "arm,cortex-a53";
> + device_type = "cpu";
> + reg = <3>;
> + enable-method = "psci";
> + clocks = <&ccu CLK_CPUX>;
> + };
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + /* 512KiB reserved for ARM Trusted Firmware (BL31) */
> + secmon_reserved: secmon@...00000 {
> + reg = <0x0 0x40000000 0x0 0x80000>;
> + no-map;
> + };
> + };
> +
> + osc24M: osc24M_clk {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <24000000>;
> + clock-output-names = "osc24M";
> + };
> +
> + pmu {
> + compatible = "arm,cortex-a53-pmu";
> + interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
> + };
> +
> + psci {
> + compatible = "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + arm,no-tick-in-suspend;
> + interrupts = <GIC_PPI 13
> + (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> + <GIC_PPI 14
> + (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> + <GIC_PPI 11
> + (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
> + <GIC_PPI 10
> + (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
> + };
> +
> + soc {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0x0 0x0 0x0 0x40000000>;
> +
> + syscon: syscon@...0000 {
> + compatible = "allwinner,sun50i-h616-system-control";
> + reg = <0x03000000 0x1000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + sram_c: sram@...00 {
> + compatible = "mmio-sram";
> + reg = <0x00028000 0x30000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x00028000 0x30000>;
> + };
> + };
> +
> + ccu: clock@...1000 {
> + compatible = "allwinner,sun50i-h616-ccu";
> + reg = <0x03001000 0x1000>;
> + clocks = <&osc24M>, <&rtc 0>, <&rtc 2>;
> + clock-names = "hosc", "losc", "iosc";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> + watchdog: watchdog@...90a0 {
> + compatible = "allwinner,sun50i-h616-wdt",
> + "allwinner,sun6i-a31-wdt";
> + reg = <0x030090a0 0x20>;
> + interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&osc24M>;
> + status = "disabled";
Why is this disabled? Is it broken like the H6?
> + };
> +
[...]
> + rtc: rtc@...0000 {
> + compatible = "allwinner,sun50i-h616-rtc",
> + "allwinner,sun50i-h6-rtc";
> + reg = <0x07000000 0x400>;
> + interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
> + clock-output-names = "osc32k", "osc32k-out", "iosc";
> + #clock-cells = <1>;
> + };
> +
> + r_ccu: clock@...0000 {
> + compatible = "allwinner,sun50i-h616-r-ccu";
> + reg = <0x07010000 0x400>;
This range overlaps the NMI controller[1] at 0x07010320, which I
verified does exist. I don't know what it is connected to, since there
is no NMI pin. Maybe the ATE/AC200?
I suggest reducing the size to 0x210, since 0x20c is the highest
clock-gate-related register.
Cheers,
Samuel
[1]
https://github.com/orangepi-xunlong/linux-orangepi/blob/orange-pi-4.9-sun50iw9/arch/arm64/boot/dts/sunxi/sun50iw9p1.dtsi#L358
> + clocks = <&osc24M>, <&rtc 0>, <&rtc 2>,
> + <&ccu CLK_PLL_PERIPH0>;
> + clock-names = "hosc", "losc", "iosc", "pll-periph";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> + r_pio: pinctrl@...2000 {
> + compatible = "allwinner,sun50i-h616-r-pinctrl";
> + reg = <0x07022000 0x400>;
> + interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&r_ccu CLK_R_APB1>, <&osc24M>, <&rtc 0>;
> + clock-names = "apb", "hosc", "losc";
> + gpio-controller;
> + #gpio-cells = <3>;
> + interrupt-controller;
> + #interrupt-cells = <3>;
> +
> + r_i2c_pins: r-i2c-pins {
> + pins = "PL0", "PL1";
> + function = "s_i2c";
> + };
> +
> + r_rsb_pins: r-rsb-pins {
> + pins = "PL0", "PL1";
> + function = "s_rsb";
> + };
> + };
> +
> + ir: ir@...0000 {
> + compatible = "allwinner,sun50i-h616-ir",
> + "allwinner,sun6i-a31-ir";
> + reg = <0x07040000 0x400>;
> + interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&r_ccu CLK_R_APB1_IR>,
> + <&r_ccu CLK_IR>;
> + clock-names = "apb", "ir";
> + resets = <&r_ccu RST_R_APB1_IR>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&ir_rx_pin>;
> + status = "disabled";
> + };
> +
> + r_i2c: i2c@...1400 {
> + compatible = "allwinner,sun50i-h616-i2c",
> + "allwinner,sun6i-a31-i2c";
> + reg = <0x07081400 0x400>;
> + interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&r_ccu CLK_R_APB2_I2C>;
> + resets = <&r_ccu RST_R_APB2_I2C>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> +
> + r_rsb: rsb@...3000 {
> + compatible = "allwinner,sun50i-h616-rsb",
> + "allwinner,sun8i-a23-rsb";
> + reg = <0x07083000 0x400>;
> + interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&r_ccu CLK_R_APB2_RSB>;
> + clock-frequency = <3000000>;
> + resets = <&r_ccu RST_R_APB2_RSB>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&r_rsb_pins>;
> + status = "disabled";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> + };
> +};
>
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