doc/SPI/status.txt added to track the u-boot SPI subsystem status.

Signed-off-by: Jagannadha Sutradharudu Teki jaganna@xilinx.com --- Changes for v5: - none Changes for v4: - none Changes for v3: - none Changes for v2: - none

doc/SPI/status.txt | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 doc/SPI/status.txt

diff --git a/doc/SPI/status.txt b/doc/SPI/status.txt new file mode 100644 index 0000000..6050e4a --- /dev/null +++ b/doc/SPI/status.txt @@ -0,0 +1,28 @@ +Status on SPI subsystem: +======================= + +SPI COMMAND (common/cmd_sf, cmd_spi): +- + +SPI FLASH (drivers/mtd/spi): +- sf_probe.c: SPI flash probing code. +- sf_ops.c: SPI flash operations code. +- sf.c: SPI flash interface, which interacts controller driver. +- Bank Address Register (Accessing flashes > 16Mbytes in 3-byte addressing) +- Common probe support for all supported flash vendors except, ramtron. + +SPI DRIVERS (drivers/spi): +- + +TODO: +- Runtime detection of spi_flash params(if possible) +- Extended read commands support(dual read, dual IO read) +- Quad Page Program support. +- Quad Read support(quad fast read, quad IO read) +- Dual flash connection topology support(accessing two spi flash memories with single cs) +- Banking support on dual flash connection topology. +- Need proper cleanups on spi_flash and drivers. + +-- +Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com +18-09-2013.