On 31/05/17 12:39, YT Shen wrote: > This adds basic chip support for Mediatek 2712 > > Signed-off-by: YT Shen <yt.shen@xxxxxxxxxxxx> > --- > arch/arm64/boot/dts/mediatek/Makefile | 1 + > arch/arm64/boot/dts/mediatek/mt2712-evb.dts | 39 +++++++ > arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 166 ++++++++++++++++++++++++++++ > 3 files changed, 206 insertions(+) > create mode 100644 arch/arm64/boot/dts/mediatek/mt2712-evb.dts > create mode 100644 arch/arm64/boot/dts/mediatek/mt2712e.dtsi > > diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile > index 9fbfd32..fcc0604 100644 > --- a/arch/arm64/boot/dts/mediatek/Makefile > +++ b/arch/arm64/boot/dts/mediatek/Makefile > @@ -1,3 +1,4 @@ > +dtb-$(CONFIG_ARCH_MEDIATEK) += mt2712-evb.dtb > dtb-$(CONFIG_ARCH_MEDIATEK) += mt6755-evb.dtb > dtb-$(CONFIG_ARCH_MEDIATEK) += mt6795-evb.dtb > dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-evb.dtb > diff --git a/arch/arm64/boot/dts/mediatek/mt2712-evb.dts b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts > new file mode 100644 > index 0000000..e526c0f > --- /dev/null > +++ b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts > @@ -0,0 +1,39 @@ > +/* > + * Copyright (c) 2017 MediaTek Inc. > + * Author: YT Shen <yt.shen@xxxxxxxxxxxx> > + * > + * SPDX-License-Identifier: (GPL-2.0 OR MIT) > + */ > + > +/dts-v1/; > +#include "mt2712e.dtsi" > + > +/ { > + model = "MediaTek MT2712 evaluation board"; > + compatible = "mediatek,mt2712-evb", "mediatek,mt2712"; > + > + aliases { > + serial0 = &uart0; > + serial1 = &uart1; > + serial2 = &uart2; > + serial3 = &uart3; > + serial4 = &uart4; > + serial5 = &uart5; > + }; > + > + memory@40000000 { > + device_type = "memory"; > + reg = <0 0x40000000 0 0x80000000>; > + }; > + > + chosen { > + stdout-path = "serial0:921600n8"; > + linux,initrd-start = <0x45000000>; > + linux,initrd-end = <0x4a000000>; > + }; > +}; > + > +&uart0 { > + status = "okay"; > +}; > + > diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi > new file mode 100644 > index 0000000..6df0da9 > --- /dev/null > +++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi > @@ -0,0 +1,166 @@ > +/* > + * Copyright (c) 2017 MediaTek Inc. > + * Author: YT Shen <yt.shen@xxxxxxxxxxxx> > + * > + * 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,mt2712"; > + interrupt-parent = <&sysirq>; > + #address-cells = <2>; > + #size-cells = <2>; > + > + cpus { > + #address-cells = <1>; > + #size-cells = <0>; > + > + cpu-map { > + cluster0 { > + core0 { > + cpu = <&cpu0>; > + }; > + core1 { > + cpu = <&cpu1>; > + }; > + }; > + > + cluster1 { > + core0 { > + cpu = <&cpu2>; > + }; > + }; > + }; > + > + cpu0: cpu@0 { > + device_type = "cpu"; > + compatible = "arm,cortex-a35"; > + reg = <0x000>; > + }; > + > + cpu1: cpu@1 { > + device_type = "cpu"; > + compatible = "arm,cortex-a35"; > + reg = <0x001>; > + enable-method = "psci"; > + }; > + > + cpu2: cpu@200 { > + device_type = "cpu"; > + compatible = "arm,cortex-a72"; > + reg = <0x200>; > + enable-method = "psci"; > + }; > + }; > + > + psci { > + compatible = "arm,psci-0.2"; > + method = "smc"; > + }; > + > + uart_clk: dummy26m { > + compatible = "fixed-clock"; > + clock-frequency = <26000000>; > + #clock-cells = <0>; > + }; > + > + timer { > + compatible = "arm,armv8-timer"; > + interrupt-parent = <&gic>; > + interrupts = <GIC_PPI 13 > + (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>, Why 6? I only count 3 cores... > + <GIC_PPI 14 > + (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>, > + <GIC_PPI 11 > + (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>, > + <GIC_PPI 10 > + (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_LOW)>; > + }; > + > + soc { > + #address-cells = <2>; > + #size-cells = <2>; > + compatible = "simple-bus"; > + ranges; > + > + uart5: serial@1000f000 { > + compatible = "mediatek,mt2712-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x1000f000 0 0x400>; > + interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; > + > + sysirq: interrupt-controller@10220a80 { > + compatible = "mediatek,mt2712-sysirq", > + "mediatek,mt6577-sysirq"; > + interrupt-controller; > + #interrupt-cells = <3>; > + interrupt-parent = <&gic>; > + reg = <0 0x10220a80 0 0x40>; > + }; > + > + gic: interrupt-controller@10510000 { > + compatible = "arm,gic-400"; > + #interrupt-cells = <3>; > + interrupt-parent = <&gic>; > + interrupt-controller; > + reg = <0 0x10510000 0 0x1000>, > + <0 0x10520000 0 0x1000>, If that's truly a GIC400, then the above is wrong (the CPU interface is spread over 8kB). I also suspect that the first 4kB are aliased over 0x10520000:0x1052f000, and the second over 0x10530000:0x1053f000 (in the true SBSA tradition). If that's the case, then the size is actually 128kB. > + <0 0x10540000 0 0x2000>, > + <0 0x10560000 0 0x2000>; Please check GICV as well, which probably behaves the same way. > + interrupts = <GIC_PPI 9 > + (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_HIGH)>; Same thing here with 6 CPUs. > + }; > + > + uart0: serial@11002000 { > + compatible = "mediatek,mt2712-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11002000 0 0x400>; > + interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; > + > + uart1: serial@11003000 { > + compatible = "mediatek,mt2712-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11003000 0 0x400>; > + interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; > + > + uart2: serial@11004000 { > + compatible = "mediatek,mt2712-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11004000 0 0x400>; > + interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; > + > + uart3: serial@11005000 { > + compatible = "mediatek,mt2712-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11005000 0 0x400>; > + interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; > + > + uart4: serial@11019000 { > + compatible = "mediatek,mt2712-uart", > + "mediatek,mt6577-uart"; > + reg = <0 0x11019000 0 0x400>; > + interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&uart_clk>; > + status = "disabled"; > + }; > + }; > +}; > + > No PMU wired on this system? Thanks, M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html