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Apple's M3 SoC is similar to M1 and M2 but uses a different memory map. The main difference is that RAM starts at 0x100_0000_0000 like on t600x and t602x (M1 and M2 Pro/Max/Ultra). Otherwise IO blocks have been rearranged. U-boot's existing drivers are compatible with the hardware and M3 device trees will carry "apple,t8103-*" compatible strings. Only apple-atcphy-reset might need a new compatible due to USB4 / DisplayPort changes the Linux driver has to deal with. Signed-off-by: Janne Grunau <j@jannau.net> Acked-by: Mark Kettenis <kettenis@openbsd.org>