spi: Add SPI flash test
It is useful to have a basic SPI flash test, which tests that the SPI chip,
the SPI bus and the driver are behaving.
This test erases part of the flash, writes data and reads it back as a
sanity check that all is well.
Use CONFIG_SF_TEST to enable it.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/README b/README
index f386041..1d2e129 100644
--- a/README
+++ b/README
@@ -2390,6 +2390,11 @@
CONFIG_SF_DEFAULT_MODE (see include/spi.h)
CONFIG_SF_DEFAULT_SPEED in Hz
+ CONFIG_CMD_SF_TEST
+
+ Define this option to include a destructive SPI flash
+ test ('sf test').
+
- SystemACE Support:
CONFIG_SYSTEMACE