summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
authorJagannadha Sutradharudu Teki <jaganna@xilinx.com>2013-09-26 15:55:52 +0530
committerJagannadha Sutradharudu Teki <jaganna@xilinx.com>2013-10-07 17:55:50 +0530
commit364995499c14461c59bc16031b2a8f618f520b32 (patch)
tree34d61620f559ba3e6c5059f57813833d45d56312 /doc
parent898e76c938eb169fd19733d4e4c44ba26c6dbd87 (diff)
downloadu-boot-imx-364995499c14461c59bc16031b2a8f618f520b32.zip
u-boot-imx-364995499c14461c59bc16031b2a8f618f520b32.tar.gz
u-boot-imx-364995499c14461c59bc16031b2a8f618f520b32.tar.bz2
doc: SPI: Add status.txt for tracking SPI subsys status
doc/SPI/status.txt added to track the u-boot SPI subsystem status. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/SPI/status.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/doc/SPI/status.txt b/doc/SPI/status.txt
new file mode 100644
index 0000000..6050e4a
--- /dev/null
+++ b/doc/SPI/status.txt
@@ -0,0 +1,28 @@
+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)
+- Common probe support for all supported flash vendors except, ramtron.
+
+SPI DRIVERS (drivers/spi):
+-
+
+TODO:
+- Runtime detection of spi_flash params(if possible)
+- 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.
+- Need proper cleanups on spi_flash and drivers.
+
+--
+Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
+18-09-2013.