nanopi-r3s-lts: bump uboot to v2026.04

[EvilOlaf]

as per title

tested boot from microsd, armbian-install to emmc, boot from emmc

Summary by CodeRabbit

• Chores
  • Updated NanoPi R3S LTS board bootloader configuration to use U-Boot v2026.04.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: eeb81709-4509-4939-857a-212bfe62bd5e

📥 Commits

Reviewing files that changed from the base of the PR and between 8d69227 and 9d6640d.

📒 Files selected for processing (2)

• config/boards/nanopi-r3s-lts.conf
• patch/u-boot/v2026.04/board_nanopi-r3s-lts/Add-board-NanoPi-R3S-LTS.patch

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📝 Walkthrough

Walkthrough

Updated U-Boot source and patch references for the NanoPI R3S LTS board configuration by bumping BOOTBRANCH and BOOTPATCHDIR from v2026.01 to v2026.04 in the post_family_config__use_mainline_uboot() function.

Changes

Cohort / File(s)	Summary
U-Boot Version Update config/boards/nanopi-r3s-lts.conf	Updated BOOTBRANCH and BOOTPATCHDIR version tags from v2026.01 to v2026.04.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• #9207 — Previous U-Boot version bump for the same board and function, updating from v2025.10 to v2026.01.

Suggested labels

Ready to merge

Suggested reviewers

• rpardini
• NicoD-SBC
• ColorfulRhino
• igorpecovnik
• paolosabatino
• catalinii
• SuperKali
• Tonymac32
• HeyMeco

Poem

🐰 A tiny hop, a version leap,
From 01 to 04 so neat and deep!
U-Boot boots with springy delight,
NanoPI R3S shines oh so bright! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and clearly describes the main change: updating U-Boot from v2026.01 to v2026.04 for the nanopi-r3s-lts board.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

✅ This PR has been reviewed and approved — all set for merge!