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Sammy Tran
2a7cf05a20
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Add QSPI mode to the GD25 MTD driver alongside the existing SPI path. When CONFIG_GD25_QSPI is selected, sector erase, chip erase, byte read, page write, and byte write all use the QSPI command/memory interfaces instead of SPI. Reads use the quad I/O fast-read command (1-4-4) and writes use the quad page-program command (1-1-4) via QSPIMEM_QUADDATA. A new Kconfig option enables the QE bit in SR2 at initialisation so the quad I/O pins are active. Signed-off-by: Sammy Tran <sammytran@geotab.com>