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Status on SPI subsystem:
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=======================
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SPI COMMAND (common/cmd_sf, cmd_spi):
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-
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SPI FLASH (drivers/mtd/spi):
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- sf_probe.c: SPI flash probing code.
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- sf_ops.c: SPI flash operations code.
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- sf.c: SPI flash interface, which interacts controller driver.
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- Bank Address Register (Accessing flashes > 16Mbytes in 3-byte addressing)
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- Added memory_mapped support for read operations.
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- Common probe support for all supported flash vendors except, ramtron.
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- Extended read commands support(dual read, dual IO read)
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- Quad Page Program support.
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- Quad Read support(quad fast read, quad IO read)
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- Dual flash connection topology support(accessing two spi flash memories with single cs)
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- Banking support on dual flash connection topology.
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SPI DRIVERS (drivers/spi):
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-
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TODO:
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- Runtime detection of spi_flash params, SFDP(if possible)
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- Add support for multibus build/accessing.
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- Need proper cleanups on spi_flash and drivers.
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--
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Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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18-09-2013.
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07-10-2013.
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08-01-2014.
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