xref: /OK3568_Linux_fs/u-boot/doc/SPI/status.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunStatus on SPI subsystem:
2*4882a593Smuzhiyun=======================
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunSPI COMMAND (common/cmd_sf, cmd_spi):
5*4882a593Smuzhiyun-
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunSPI FLASH (drivers/mtd/spi):
8*4882a593Smuzhiyun- sf_probe.c: SPI flash probing code.
9*4882a593Smuzhiyun- sf_ops.c: SPI flash operations code.
10*4882a593Smuzhiyun- sf.c: SPI flash interface, which interacts controller driver.
11*4882a593Smuzhiyun- Bank Address Register (Accessing flashes > 16Mbytes in 3-byte addressing)
12*4882a593Smuzhiyun- Added memory_mapped support for read operations.
13*4882a593Smuzhiyun- Common probe support for all supported flash vendors except, ramtron.
14*4882a593Smuzhiyun- Extended read commands support(dual read, dual IO read)
15*4882a593Smuzhiyun- Quad Page Program support.
16*4882a593Smuzhiyun- Quad Read support(quad fast read, quad IO read)
17*4882a593Smuzhiyun- Dual flash connection topology support(accessing two spi flash memories with single cs)
18*4882a593Smuzhiyun- Banking support on dual flash connection topology.
19*4882a593Smuzhiyun
20*4882a593SmuzhiyunSPI DRIVERS (drivers/spi):
21*4882a593Smuzhiyun-
22*4882a593Smuzhiyun
23*4882a593SmuzhiyunTODO:
24*4882a593Smuzhiyun- Runtime detection of spi_flash params, SFDP(if possible)
25*4882a593Smuzhiyun- Add support for multibus build/accessing.
26*4882a593Smuzhiyun- Need proper cleanups on spi_flash and drivers.
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun--
29*4882a593SmuzhiyunJagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
30*4882a593Smuzhiyun18-09-2013.
31*4882a593Smuzhiyun07-10-2013.
32*4882a593Smuzhiyun08-01-2014.
33