diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/doc/SPI/status.txt | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
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. |