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Message-ID: <20231205154123.dy3t5xcuzj6kzm3w@thorn>
Date: Tue, 5 Dec 2023 09:41:23 -0600
From: Nishanth Menon <nm@...com>
To: Andrew Davis <afd@...com>
CC: Vignesh Raghavendra <vigneshr@...com>,
Tero Kristo <kristo@...nel.org>,
Jan Kiszka <jan.kiszka@...mens.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: ti: k3-am65: Add AM652 DTSI file
On 10:53-20231117, Andrew Davis wrote:
> The AM652 is basically a AM654 but with 2 cores instead of 4. Add
> a DTSI file for AM652 matching AM654 except this core difference.
>
> This removes the need to remove the extra cores from AM654 manually
> in DT files for boards that use the AM652 variant. Do that for
> the IOT2050 boards here.
>
> Signed-off-by: Andrew Davis <afd@...com>
> ---
> .../boot/dts/ti/k3-am65-iot2050-common.dtsi | 1 -
> arch/arm64/boot/dts/ti/k3-am652.dtsi | 74 +++++++++++++++++++
> .../ti/k3-am6528-iot2050-basic-common.dtsi | 11 +--
> .../ti/k3-am6548-iot2050-advanced-common.dtsi | 1 +
> 4 files changed, 76 insertions(+), 11 deletions(-)
> create mode 100644 arch/arm64/boot/dts/ti/k3-am652.dtsi
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> index ba1c14a54acf4..bd5273a37b095 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
Could you rebase to latest next? patch doesn't apply anymore.
> @@ -9,7 +9,6 @@
> * Common bits of the IOT2050 Basic and Advanced variants, PG1 and PG2
> */
>
> -#include "k3-am654.dtsi"
> #include <dt-bindings/phy/phy.h>
>
> / {
> diff --git a/arch/arm64/boot/dts/ti/k3-am652.dtsi b/arch/arm64/boot/dts/ti/k3-am652.dtsi
> new file mode 100644
> index 0000000000000..0f22e00faa903
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am652.dtsi
> @@ -0,0 +1,74 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree Source for AM65 SoC family in Dual core configuration
> + *
> + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
> + */
> +
> +#include "k3-am65.dtsi"
> +
> +/ {
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + cpu-map {
> + cluster0: cluster0 {
> + core0 {
> + cpu = <&cpu0>;
> + };
> +
> + core1 {
> + cpu = <&cpu1>;
> + };
> + };
> + };
> +
> + cpu0: cpu@0 {
> + compatible = "arm,cortex-a53";
> + reg = <0x000>;
> + device_type = "cpu";
> + enable-method = "psci";
> + i-cache-size = <0x8000>;
> + i-cache-line-size = <64>;
> + i-cache-sets = <256>;
> + d-cache-size = <0x8000>;
> + d-cache-line-size = <64>;
> + d-cache-sets = <128>;
> + next-level-cache = <&L2_0>;
> + };
> +
> + cpu1: cpu@1 {
> + compatible = "arm,cortex-a53";
> + reg = <0x001>;
> + device_type = "cpu";
> + enable-method = "psci";
> + i-cache-size = <0x8000>;
> + i-cache-line-size = <64>;
> + i-cache-sets = <256>;
> + d-cache-size = <0x8000>;
> + d-cache-line-size = <64>;
> + d-cache-sets = <128>;
> + next-level-cache = <&L2_0>;
> + };
> + };
> +
> + L2_0: l2-cache0 {
> + compatible = "cache";
> + cache-level = <2>;
> + cache-unified;
> + cache-size = <0x80000>;
> + cache-line-size = <64>;
> + cache-sets = <512>;
> + next-level-cache = <&msmc_l3>;
> + };
> +
> + msmc_l3: l3-cache0 {
> + compatible = "cache";
> + cache-level = <3>;
> + cache-unified;
> + };
> +
> + thermal_zones: thermal-zones {
> + #include "k3-am654-industrial-thermal.dtsi"
> + };
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi
> index 5ab434c02ab6b..feb0eae4e6df4 100644
> --- a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic-common.dtsi
> @@ -9,6 +9,7 @@
> * Common bits of the IOT2050 Basic variant, PG1 and PG2
> */
>
> +#include "k3-am652.dtsi"
> #include "k3-am65-iot2050-common.dtsi"
>
> / {
> @@ -17,16 +18,6 @@ memory@...00000 {
> /* 1G RAM */
> reg = <0x00000000 0x80000000 0x00000000 0x40000000>;
> };
> -
> - cpus {
> - cpu-map {
> - /delete-node/ cluster1;
> - };
> - /delete-node/ cpu@100;
> - /delete-node/ cpu@101;
> - };
> -
> - /delete-node/ l2-cache1;
> };
>
> /* eMMC */
> diff --git a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi
> index be55494b1f3fc..ff2fdc2e12e3c 100644
> --- a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-common.dtsi
> @@ -11,6 +11,7 @@
>
> /dts-v1/;
>
> +#include "k3-am654.dtsi"
> #include "k3-am65-iot2050-common.dtsi"
>
> / {
> --
> 2.39.2
>
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
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