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Diffstat (limited to 'qemu/roms/u-boot/doc/SPI/status.txt')
| -rw-r--r-- | qemu/roms/u-boot/doc/SPI/status.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/doc/SPI/status.txt b/qemu/roms/u-boot/doc/SPI/status.txt new file mode 100644 index 000000000..13889f545 --- /dev/null +++ b/qemu/roms/u-boot/doc/SPI/status.txt @@ -0,0 +1,32 @@ +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. |