mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
736ce857da
Updated current SPI subsyetem status. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
32 lines
1 KiB
Text
32 lines
1 KiB
Text
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)
|
|
- Added memory_mapped support for read operations.
|
|
- Common probe support for all supported flash vendors except, ramtron.
|
|
- 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.
|
|
|
|
SPI DRIVERS (drivers/spi):
|
|
-
|
|
|
|
TODO:
|
|
- Runtime detection of spi_flash params, SFDP(if possible)
|
|
- Add support for multibus build/accessing.
|
|
- Need proper cleanups on spi_flash and drivers.
|
|
|
|
--
|
|
Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
|
|
18-09-2013.
|
|
07-10-2013.
|
|
08-01-2014.
|