Messages in this thread | | | Date | Wed, 09 Feb 2022 19:10:51 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH 4/5] arm64: dts: ti: Introduce base support for AM62x SoC |
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On 2022-02-08 13:18, Vignesh Raghavendra wrote: > The AM62 SoC family is the follow on AM335x built on K3 Multicore SoC > architecture platform, providing ultra-low-power modes, dual display, > multi-sensor edge compute, security and other BOM-saving integration. > The AM62 SoC targets broad market to enable applications such as > Industrial HMI, PLC/CNC/Robot control, Medical Equipment, Building > Automation, Appliances and more. > > Some highlights of this SoC are: > > * Quad-Cortex-A53s (running up to 1.4GHz) in a single cluster. > Pin-to-pin compatible options for single and quad core are available. > * Cortex-M4F for general-purpose or safety usage. > * Dual display support, providing 24-bit RBG parallel interface and > OLDI/LVDS-4 Lane x2, up to 200MHz pixel clock support for 2K display > resolution. > * Selectable GPUsupport, up to 8GFLOPS, providing better user > experience > in 3D graphic display case and Android. > * PRU(Programmable Realtime Unit) support for customized programmable > interfaces/IOs. > * Integrated Giga-bit Ethernet switch supporting up to a total of two > external ports (TSN capable). > * 9xUARTs, 5xSPI, 6xI2C, 2xUSB2, 3xCAN-FD, 3x eMMC and SD, GPMC for > NAND/FPGA connection, OSPI memory controller, 3xMcASP for audio, > 1x CSI-RX-4L for Camera, eCAP/eQEP, ePWM, among other peripherals. > * Dedicated Centralized System Controller for Security, Power, and > Resource Management. > * Multiple low power modes support, ex: Deep sleep,Standby, MCU-only, > enabling battery powered system design. > > This add bare minimum DT describing ARM compute clusters, Main, MCU and > Wakeup domain and interconnects, UARTs and I2Cs to enable booting using > ramdisk. > > More details can be found in the Technical Reference Manual: > https://www.ti.com/lit/pdf/spruiv7 > > Co-developed-by: Suman Anna <s-anna@ti.com> > Signed-off-by: Suman Anna <s-anna@ti.com> > Co-developed-by: Nishanth Menon <nm@ti.com> > Signed-off-by: Nishanth Menon <nm@ti.com> > Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> > --- > arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 263 +++++++++++++++++++++ > arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi | 36 +++ > arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 41 ++++ > arch/arm64/boot/dts/ti/k3-am62.dtsi | 104 ++++++++ > arch/arm64/boot/dts/ti/k3-am625.dtsi | 103 ++++++++ > 5 files changed, 547 insertions(+) > create mode 100644 arch/arm64/boot/dts/ti/k3-am62-main.dtsi > create mode 100644 arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > create mode 100644 arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi > create mode 100644 arch/arm64/boot/dts/ti/k3-am62.dtsi > create mode 100644 arch/arm64/boot/dts/ti/k3-am625.dtsi > > diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi > b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi > new file mode 100644 > index 000000000000..81d6d99ca180 > --- /dev/null > +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi > @@ -0,0 +1,263 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Device Tree Source for AM625 SoC Family Main Domain peripherals > + * > + * Copyright (C) 2020-2022 Texas Instruments Incorporated - > https://www.ti.com/ > + */ > + > +&cbass_main { > + gic500: interrupt-controller@1800000 { > + compatible = "arm,gic-v3"; > + #address-cells = <2>; > + #size-cells = <2>; > + ranges; > + #interrupt-cells = <3>; > + interrupt-controller; > + reg = <0x00 0x01800000 0x00 0x10000>, /* GICD */ > + <0x00 0x01880000 0x00 0xC0000>; /* GICR */
Usual rant: you are missing the GICC, GICH and GICV regions that are implemented by the CPU. Cortex-A53 implements them (they are not optional), so please describe them.
> + /* > + * vcpumntirq: > + * virtual CPU interface maintenance interrupt > + */ > + interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>; > + > + gic_its: msi-controller@1820000 { > + compatible = "arm,gic-v3-its"; > + reg = <0x00 0x01820000 0x00 0x10000>; > + socionext,synquacer-pre-its = <0x1000000 0x400000>;
The mind boggles...
M. -- Jazz is not dead. It just smells funny...
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