diff options
| author | David Lechner <[email protected]> | 2026-03-16 16:55:15 -0500 |
|---|---|---|
| committer | David Lechner <[email protected]> | 2026-04-07 11:07:44 -0500 |
| commit | fbd4bd3a1e4dd0f1fc1ef37c9694c4165edfabb3 (patch) | |
| tree | 08f950eea69f54f745bd4787007c0154e0e976d8 | |
| parent | 34b43ab5e151399eb14ce53468377c376f34e305 (diff) | |
arm: dts: add U-Boot overrides for Genio 520 and 720 SD card
Add U-Boot-specific device tree overrides for the Genio 520 and 720 EVK
boards. These are needed to enable SD card support in U-Boot due to
current driver limitations. It is expected that these files will remain
after eventually converting these to CONFIG_OF_UPSTREAM, so we use
separate .u-boot.dtsi files for this.
Reviewed-by: Julien Stephan <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: David Lechner <[email protected]>
| -rw-r--r-- | arch/arm/dts/mt8371-genio-520-evk-u-boot.dtsi | 3 | ||||
| -rw-r--r-- | arch/arm/dts/mt8371-genio-common-u-boot.dtsi | 28 | ||||
| -rw-r--r-- | arch/arm/dts/mt8391-genio-720-evk-u-boot.dtsi | 3 | ||||
| -rw-r--r-- | board/mediatek/MAINTAINERS | 3 |
4 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/dts/mt8371-genio-520-evk-u-boot.dtsi b/arch/arm/dts/mt8371-genio-520-evk-u-boot.dtsi new file mode 100644 index 00000000000..a69e2db5a04 --- /dev/null +++ b/arch/arm/dts/mt8371-genio-520-evk-u-boot.dtsi @@ -0,0 +1,3 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR MIT) + +#include "mt8371-genio-common-u-boot.dtsi" diff --git a/arch/arm/dts/mt8371-genio-common-u-boot.dtsi b/arch/arm/dts/mt8371-genio-common-u-boot.dtsi new file mode 100644 index 00000000000..b7a0c0a82a7 --- /dev/null +++ b/arch/arm/dts/mt8371-genio-common-u-boot.dtsi @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR MIT) +/* + * Copyright (C) 2026 MediaTek Inc. + */ + +&mmc1 { + /* U-Boot driver doesn't support UHS yet. */ + /delete-property/ sd-uhs-sdr50; + /delete-property/ sd-uhs-sdr104; + mmc-no-1-8-v; +}; + +/* + * Needed to trigger U-Boot auto-set-voltage. Default voltages for these + * supplies at boot are incorrect and U-Boot MMC drivers don't set them. + */ + +&mt6359_vpa_buck_reg { + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-always-on; +}; + +&mt6359_vsim1_ldo_reg { + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-always-on; +}; diff --git a/arch/arm/dts/mt8391-genio-720-evk-u-boot.dtsi b/arch/arm/dts/mt8391-genio-720-evk-u-boot.dtsi new file mode 100644 index 00000000000..a69e2db5a04 --- /dev/null +++ b/arch/arm/dts/mt8391-genio-720-evk-u-boot.dtsi @@ -0,0 +1,3 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR MIT) + +#include "mt8371-genio-common-u-boot.dtsi" diff --git a/board/mediatek/MAINTAINERS b/board/mediatek/MAINTAINERS index 113e48a67f0..c342ff24330 100644 --- a/board/mediatek/MAINTAINERS +++ b/board/mediatek/MAINTAINERS @@ -1,6 +1,9 @@ MT8189/MT8371/MT8391 EVK M: Macpaul Lin <[email protected]> S: Maintained +F: arch/arm/dts/mt8371-genio-520-evk-u-boot.dtsi +F: arch/arm/dts/mt8371-genio-common-u-boot.dtsi +F: arch/arm/dts/mt8391-genio-720-evk-u-boot.dtsi F: configs/mt8189.config F: configs/mt8371_genio_520_evk_defconfig F: configs/mt8391_genio_720_evk_defconfig |