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docs(jetson): update links and docs for reworked kernel repo#48

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docs(jetson): update links and docs for reworked kernel repo#48
dakejahl wants to merge 1 commit into
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docs/jetson-kernel-rework

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Summary

Update the Jetson carrier docs (PAB, JAJ, PAB_V3) to match the reworked ark_jetson_kernel repo.

Problem

The kernel repo moved to a per-product layout (products/{JAJ,PAB,PAB_V3}/device_tree/…), swapped build_kernel.sh / copy_dtbs_to_prebuilt.sh for ./build.sh <TARGET> + staging/<TARGET>/, added prebuilt flash packages, and removed the IMX477 4-lane overlays. The gitbook still pointed at the old device_tree/ark_jaj and device_tree/ark_pab paths, the deleted scripts, and the removed overlays — so the device-tree, overlay, and pinmux links were broken and the camera build steps no longer worked.

Solution

Repoint every device-tree, ark_i2s_gpio.dts, and pinmux-spreadsheet link at the new products/<TARGET>/… paths — correcting PAB_V3, which pointed at ark_pab, and adding the device-tree link the PAB_V3 flashing guide was missing. Rewrite the camera-overlay build sections around ./build.sh <TARGET>, drop the removed 4-lane overlays, and surface prebuilt flash packages in the flashing guides. Also fix the M.2 LTE guide, which referenced the deleted setup_source_build.sh (QMI_WWAN is now built into the ARK defconfig).

Repoint device-tree, overlay, and pinmux links at the new products/<TARGET>/ layout, rewrite the camera-overlay build steps around ./build.sh <TARGET>, drop the removed IMX477 4-lane overlays, and surface prebuilt flash packages. Also fix the M.2 LTE guide's removed setup_source_build.sh reference.
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