xref: /openbmc/u-boot/doc/SPI/status.txt (revision cbd2fba1)
1Status on SPI subsystem:
2=======================
3
4SPI COMMAND (common/cmd_sf, cmd_spi):
5-
6
7SPI FLASH (drivers/mtd/spi):
8- sf_probe.c: SPI flash probing code.
9- sf_ops.c: SPI flash operations code.
10- sf.c: SPI flash interface, which interacts controller driver.
11- Bank Address Register (Accessing flashes > 16Mbytes in 3-byte addressing)
12- Added memory_mapped support for read operations.
13- Common probe support for all supported flash vendors except, ramtron.
14- Extended read commands support(dual read, dual IO read)
15- Quad Page Program support.
16- Quad Read support(quad fast read, quad IO read)
17- Dual flash connection topology support(accessing two spi flash memories with single cs)
18- Banking support on dual flash connection topology.
19
20SPI DRIVERS (drivers/spi):
21-
22
23TODO:
24- Runtime detection of spi_flash params, SFDP(if possible)
25- Add support for multibus build/accessing.
26- Need proper cleanups on spi_flash and drivers.
27
28--
29Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
3018-09-2013.
3107-10-2013.
3208-01-2014.
33