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authorVignesh R <vigneshr@ti.com>2019-02-12 11:38:09 +0300
committerBoris Brezillon <boris.brezillon@collabora.com>2019-02-13 17:13:28 +0300
commit2cc788387497d1bee981f7bee3b82b6c5b2a79a3 (patch)
tree8140d8c42f9146cf080c3fdfd1e41ba38b411cf3 /drivers/clk/spear
parent70b64604fef0fb6fbc3bf6fbd9cd90b73ab0dfa8 (diff)
downloadlinux-2cc788387497d1bee981f7bee3b82b6c5b2a79a3.tar.xz
mtd: spi-nor: cadence-quadspi: Add support for Octal SPI controller
Cadence OSPI controller IP supports Octal IO (x8 IO lines), It also has an integrated PHY. IP register layout is very similar to existing QSPI IP except for additional bits to support Octal and Octal DDR mode. Therefore, extend current driver to support Octal mode. Only Octal SDR read (1-1-8)mode is supported for now. Tested with mt35xu512aba Octal flash on TI's AM654 EVM. Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
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