[PATCH v2 1/9] arch: arm: dts: stratix10: Switch to using upstream Linux DT config
Chee, Tien Fong
tien.fong.chee at altera.com
Thu May 7 10:37:15 CEST 2026
Hi Alif,
On 28/4/2026 11:48 am, alif.zakuan.yuslaimi at altera.com wrote:
> From: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi at altera.com>
>
> Migrate the legacy Stratix10 platform to use the upstream Linux device tree
> configuration. This helps reduce maintenance overhead and aligns U-Boot
> with the Linux kernel's DTS hierarchy and naming conventions.
>
> This change improves consistency between U-Boot and Linux by removing
> custom/legacy DTS handling and instead relying on the standardized
> definitions provided by the upstream Linux DTS.
>
> Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi at altera.com>
> ---
Please add the change log for each version.
> arch/arm/dts/Makefile | 3 +-
> arch/arm/dts/socfpga_stratix10-u-boot.dtsi | 158 +++++++
> arch/arm/dts/socfpga_stratix10.dtsi | 430 ------------------
> .../dts/socfpga_stratix10_socdk-u-boot.dtsi | 143 +++++-
> arch/arm/dts/socfpga_stratix10_socdk.dts | 143 ------
> configs/socfpga_stratix10_defconfig | 3 +-
> 6 files changed, 286 insertions(+), 594 deletions(-)
> delete mode 100644 arch/arm/dts/socfpga_stratix10.dtsi
> delete mode 100644 arch/arm/dts/socfpga_stratix10_socdk.dts
>
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index bff341d6118..2832123218f 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -460,8 +460,7 @@ dtb-$(CONFIG_ARCH_SOCFPGA) += \
> socfpga_cyclone5_vining_fpga.dtb \
> socfpga_cyclone5_ac501soc.dtb \
> socfpga_cyclone5_ac550soc.dtb \
> - socfpga_n5x_socdk.dtb \
> - socfpga_stratix10_socdk.dtb
> + socfpga_n5x_socdk.dtb
>
> dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb dra7-evm.dtb \
> dra72-evm-revc.dtb dra71-evm.dtb dra76-evm.dtb
> diff --git a/arch/arm/dts/socfpga_stratix10-u-boot.dtsi b/arch/arm/dts/socfpga_stratix10-u-boot.dtsi
> index 3e3a3780469..a3b4c0564f9 100644
> --- a/arch/arm/dts/socfpga_stratix10-u-boot.dtsi
> +++ b/arch/arm/dts/socfpga_stratix10-u-boot.dtsi
> @@ -3,6 +3,164 @@
> * U-Boot additions
> *
> * Copyright (C) 2020 Intel Corporation <www.intel.com>
> + * Copyright (C) 2026 Altera Corporation <www.altera.com>
> */
>
> #include "socfpga_soc64_fit-u-boot.dtsi"
> +
> +/{
> + aliases {
> + spi0 = &qspi;
> + i2c0 = &i2c1;
> + freeze_br0 = &freeze_controller;
> + };
> +
> + memory at 0 {
> + device_type = "memory";
> + #address-cells = <2>;
> + #size-cells = <2>;
make dtbs_check (Linux dt-validate) will flag it as a schema violation
since memory nodes must not define #address-cells / #size-cells because
no child node according to the dt spec.
Remove both properties from the memory at 0
[...]
> diff --git a/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi b/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi
> index ef0df769762..da19943ec3b 100644
> --- a/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi
> +++ b/arch/arm/dts/socfpga_stratix10_socdk-u-boot.dtsi
> @@ -3,47 +3,154 @@
> * U-Boot additions
> *
> * Copyright (C) 2019-2022 Intel Corporation <www.intel.com>
> + * Copyright (C) 2026 Altera Corporation <www.altera.com>
> */
>
> #include "socfpga_stratix10-u-boot.dtsi"
>
> /{
> - aliases {
> - spi0 = &qspi;
> - freeze_br0 = &freeze_controller;
> + chosen {
> + stdout-path = "serial0:115200n8";
> + u-boot,spl-boot-order = &mmc,&flash0,&nand;
> };
>
> - soc {
> - freeze_controller: freeze_controller at f9000450 {
> - compatible = "altr,freeze-bridge-controller";
> - reg = <0xf9000450 0x00000010>;
> - status = "disabled";
> + memory at 0 {
> + /* 4GB */
> + reg = <0 0x00000000 0 0x80000000>,
> + <1 0x80000000 0 0x80000000>;
> + };
> +};
> +
> +&qspi {
> + status = "okay";
> +};
> +
> +&gmac0 {
> + mdio0 {
> + ethernet_phy0: ethernet-phy at 0 {
> + reg = <4>;
> + txd0-skew-ps = <0>; /* -420ps */
> + txd1-skew-ps = <0>; /* -420ps */
> + txd2-skew-ps = <0>; /* -420ps */
> + txd3-skew-ps = <0>; /* -420ps */
> + rxd0-skew-ps = <420>; /* 0ps */
> + rxd1-skew-ps = <420>; /* 0ps */
> + rxd2-skew-ps = <420>; /* 0ps */
> + rxd3-skew-ps = <420>; /* 0ps */
> + txen-skew-ps = <0>; /* -420ps */
> + txc-skew-ps = <900>; /* 0ps */
> + rxdv-skew-ps = <420>; /* 0ps */
> + rxc-skew-ps = <1680>; /* 780ps */
> };
> };
> };
>
> -&clkmgr {
> +&mmc {
> + drvsel = <3>;
> + smplsel = <2>;
> bootph-all;
> };
>
> &qspi {
> - status = "okay";
> - bootph-all;
> + /delete-property/ clocks;
> };
>
> &flash0 {
> - compatible = "jedec,spi-nor";
> - spi-max-frequency = <100000000>;
> + reg = <0>;
> spi-tx-bus-width = <4>;
> spi-rx-bus-width = <4>;
> bootph-all;
> +
> + m25p,fast-read;
> + cdns,page-size = <256>;
> + cdns,block-size = <16>;
> + cdns,tshsl-ns = <50>;
> + cdns,tsd2d-ns = <50>;
> + cdns,tchsh-ns = <4>;
> + cdns,tslch-ns = <4>;
> + /delete-property/ cdns,read-delay;
> +
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + qspi_boot: partition at 0 {
> + label = "u-boot";
> + reg = <0x0 0x04200000>;
> + };
> +
> + root: partition at 4200000 {
> + label = "root";
> + reg = <0x04200000 0x0BE00000>;
> + };
> + };
> };
>
> -&sysmgr {
> - bootph-all;
> +&fdt_0_blob {
> + filename = "dts/upstream/src/arm64/altera/socfpga_stratix10_socdk.dtb";
> };
>
> -&watchdog0 {
> - status = "okay";
> - bootph-all;
> +&images {
> + fdt-1 {
> + description = "socfpga_socdk_nand";
> + type = "flat_dt";
> + compression = "none";
> + fdt_1_blob: blob-ext {
> + filename = "dts/upstream/src/arm64/altera/socfpga_stratix10_socdk_nand.dtb";
> + };
> + hash {
> + algo = "crc32";
> + };
> + };
> +
> + fdt-2 {
> + description = "socfpga_socdk_emmc";
> + type = "flat_dt";
> + compression = "none";
> + fdt_2_blob: blob-ext {
> + filename = "dts/upstream/src/arm64/altera/socfpga_stratix10_socdk_emmc.dtb";
This file is absent. Binman references
dts/upstream/src/arm64/altera/socfpga_stratix10_socdk_emmc.dtb.
If those source DTS files do not exist in the upstream tree, binman
fails with a file-not-found error at image build time
Best regards,
Tien Fong
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