The Orangepi 4A has a SPI-NOR flash connected to spi0 on the PC pins. The HOLD and WP pins are not connected, and are instead pulled up by the supply rail. Enable spi0 and add a device node for the SPI-NOR flash. Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Link: https://patch.msgid.link/20251221110513.1850535-5-wens@kernel.org Signed-off-by: Chen-Yu Tsai <wens@kernel.org>