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Groups > linux.kernel > #1666824
| From | Matthias Brugger <matthias.bgg@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v4 1/2] arm64: dts: mt7622: add basic nodes to the mt7622.dtsi file |
| Date | 2017-06-15 18:10 +0200 |
| Message-ID | <tSFvk-4D9-9@gated-at.bofh.it> (permalink) |
| References | <tSjbr-7qT-7@gated-at.bofh.it> <tSjbs-7qT-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 14/06/17 18:11, sean.wang@mediatek.com wrote:
> From: Sean Wang <sean.wang@mediatek.com>
>
> add basic nodes into the mt7622.dtsi for the system
> bring-up which includes ARM CPU, GIC, timer, MediaTek
> UART, SYSIRQ and one reserved memory region for ATF.
>
> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> ---
> arch/arm64/boot/dts/mediatek/mt7622.dtsi | 104 +++++++++++++++++++++++++++++++
> 1 file changed, 104 insertions(+)
> create mode 100644 arch/arm64/boot/dts/mediatek/mt7622.dtsi
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
> new file mode 100644
> index 0000000..239b9b3
> --- /dev/null
> +++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
> @@ -0,0 +1,104 @@
> +/*
> + * Copyright (c) 2017 MediaTek Inc.
> + * Author: Ming Huang <ming.huang@mediatek.com>
> + * Sean Wang <sean.wang@mediatek.com>
> + *
> + * SPDX-License-Identifier: (GPL-2.0 OR MIT)
> + */
> +
> +#include <dt-bindings/interrupt-controller/irq.h>
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +/ {
> + compatible = "mediatek,mt7622";
> + interrupt-parent = <&sysirq>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x0>;
> + enable-method = "psci";
> + clock-frequency = <1300000000>;
> + };
> +
> + cpu1: cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53", "arm,armv8";
> + reg = <0x0 0x1>;
> + enable-method = "psci";
> + clock-frequency = <1300000000>;
> + };
> + };
> +
> + uart_clk: dummy25m {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <25000000>;
> + };
> +
> + psci {
> + compatible = "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + /* 192 KiB reserved for ARM Trusted Firmware (BL31) */
> + secmon_reserved: secmon@43000000 {
> + reg = <0 0x43000000 0 0x30000>;
> + no-map;
> + };
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupt-parent = <&gic>;
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) |
> + IRQ_TYPE_LEVEL_HIGH)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) |
> + IRQ_TYPE_LEVEL_HIGH)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) |
> + IRQ_TYPE_LEVEL_HIGH)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) |
> + IRQ_TYPE_LEVEL_HIGH)>;
> + };
> +
> + sysirq: interrupt-controller@10200620 {
> + compatible = "mediatek,mt7622-sysirq",
> + "mediatek,mt6577-sysirq";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + interrupt-parent = <&gic>;
> + reg = <0 0x10200620 0 0x20>;
> + };
> +
> + gic: interrupt-controller@10300000 {
> + compatible = "arm,gic-400";
> + interrupt-controller;
> + #interrupt-cells = <3>;
> + interrupt-parent = <&gic>;
> + reg = <0 0x10310000 0 0x1000>,
> + <0 0x10320000 0 0x1000>,
> + <0 0x10340000 0 0x2000>,
> + <0 0x10360000 0 0x2000>;
> + };
> +
> + uart0: serial@11002000 {
> + compatible = "mediatek,mt7622-uart",
> + "mediatek,mt6577-uart";
> + reg = <0 0x11002000 0 0x400>;
> + interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
> + clocks = <&uart_clk>, <&uart_clk>;
Please add a dummy clock node with the correct frequency, as done in
other chips as well.
Thanks,
Matthias
> + clock-names = "baud", "bus";
> + status = "disabled";
> + };
> +};
>
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[PATCH v4 1/2] arm64: dts: mt7622: add basic nodes to the mt7622.dtsi file <sean.wang@mediatek.com> - 2017-06-14 18:20 +0200
Re: [PATCH v4 1/2] arm64: dts: mt7622: add basic nodes to the mt7622.dtsi file Matthias Brugger <matthias.bgg@gmail.com> - 2017-06-15 18:10 +0200
Re: [PATCH v4 1/2] arm64: dts: mt7622: add basic nodes to the mt7622.dtsi file Sean Wang <sean.wang@mediatek.com> - 2017-06-15 19:40 +0200
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