On Mon, Aug 20, 2018 at 12:17:15PM +0530, Vabhav Sharma wrote:
> LX2160A SoC is based on Layerscape Chassis Generation 3.2 Architecture.
>
> LX2160A features an advanced 16 64-bit ARM v8 CortexA72 processor cores
> in 8 cluster, CCN508, GICv3,two 64-bit DDR4 memory controller, 8 I2C
> controllers, 3 dspi, 2 esdhc,2 USB 3.0, mmu 500, 3 SATA, 4 PL011 SBSA
> UARTs etc.
>
> Signed-off-by: Ramneek Mehresh <ramneek.mehresh@xxxxxxx>
> Signed-off-by: Zhang Ying-22455 <ying.zhang22455@xxxxxxx>
> Signed-off-by: Nipun Gupta <nipun.gupta@xxxxxxx>
> Signed-off-by: Priyanka Jain <priyanka.jain@xxxxxxx>
> Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@xxxxxxx>
> Signed-off-by: Sriram Dash <sriram.dash@xxxxxxx>
> Signed-off-by: Vabhav Sharma <vabhav.sharma@xxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 572 +++++++++++++++++++++++++
> 1 file changed, 572 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> new file mode 100644
> index 0000000..e35e494
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
> @@ -0,0 +1,572 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +//
> +// Device Tree Include file for Layerscape-LX2160A family SoC.
> +//
> +// Copyright 2018 NXP
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +/memreserve/ 0x80000000 0x00010000;
> +
> +/ {
> + compatible = "fsl,lx2160a";
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + // 8 clusters having 2 Cortex-A72 cores each
> + cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a72";
> + reg = <0x0>;
> + clocks = <&clockgen 1 0>;
> + next-level-cache = <&cluster0_l2>;
If you expect to get cache properties in sysfs entries, you need to populate
them here and for each L2 cache.
[...]
> +
> + rstcr: syscon@1e60000 {
> + compatible = "syscon";
> + reg = <0x0 0x1e60000 0x0 0x4>;
> + };
> +
> + reboot {
> + compatible ="syscon-reboot";
> + regmap = <&rstcr>;
> + offset = <0x0>;
> + mask = <0x2>;
Is this disabled in bootloader ? With PSCI, it's preferred to use
SYSTEM_RESET/OFF. EL3 f/w may need to do some housekeeping on poweroff.
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupts = <1 13 4>, // Physical Secure PPI, active-low
The comment says active low but the value 4 indicates it's HIGH from
"include/dt-bindings/interrupt-controller/irq.h"
> + <1 14 4>, // Physical Non-Secure PPI, active-low
> + <1 11 4>, // Virtual PPI, active-low
> + <1 10 4>; // Hypervisor PPI, active-low
> + };
> +
> + pmu {
> + compatible = "arm,armv8-pmuv3";
More specific compatible preferably "arm,cortex-a72-pmu" ?
--
Regards,
Sudeep
