Add generic boot-mode support to Enclustra Arria10 and Cyclone5 boards. Some Enclustra carrier boards need hardware adjustments specific to the selected boot-mode. Enclustra's Arria10 SoMs allow for booting from different media. By muxing certain IO pins, the media can be selected. This muxing can be done by gpios at runtime e.g. when flashing QSPI from off the bootloader. But also to have statically certain boot media available, certain adjustments to the DT are needed: - SD: QSPI must be disabled - eMMC: QSPI must be disabled, bus width can be doubled to 8 byte - QSPI: any mmc is disabled, QSPI then defaults to be enabled The boot media must be accessible to the bootloader, e.g. to load a bitstream file, but also to the system to mount the rootfs and to use the specific performance. Signed-off-by: Andreas Buerkler <andreas.buerkler@xxxxxxxxxxxxx> Signed-off-by: Lothar Rubusch <l.rubusch@xxxxxxxxx> --- .../socfpga_enclustra_mercury_bootmode_emmc.dtsi | 12 ++++++++++++ .../socfpga_enclustra_mercury_bootmode_qspi.dtsi | 8 ++++++++ .../socfpga_enclustra_mercury_bootmode_sdmmc.dtsi | 8 ++++++++ 3 files changed, 28 insertions(+) create mode 100644 arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_emmc.dtsi create mode 100644 arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_qspi.dtsi create mode 100644 arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_sdmmc.dtsi diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_emmc.dtsi b/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_emmc.dtsi new file mode 100644 index 000000000..d79cb64da --- /dev/null +++ b/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_emmc.dtsi @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0+ OR MIT +/* + * Copyright (C) 2024 Enclustra GmbH - https://www.enclustra.com + */ + +&qspi { + status = "disabled"; +}; + +&mmc { + bus-width = <8>; +}; diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_qspi.dtsi b/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_qspi.dtsi new file mode 100644 index 000000000..5ba21dd8f --- /dev/null +++ b/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_qspi.dtsi @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ OR MIT +/* + * Copyright (C) 2024 Enclustra GmbH - https://www.enclustra.com + */ + +&mmc { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_sdmmc.dtsi b/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_sdmmc.dtsi new file mode 100644 index 000000000..2b102e0b6 --- /dev/null +++ b/arch/arm/boot/dts/intel/socfpga/socfpga_enclustra_mercury_bootmode_sdmmc.dtsi @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ OR MIT +/* + * Copyright (C) 2024 Enclustra GmbH - https://www.enclustra.com + */ + +&qspi { + status = "disabled"; +}; -- 2.25.1
