summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
Diffstat (limited to 'doc')
-rw-r--r--doc/README.POST11
1 files changed, 5 insertions, 6 deletions
diff --git a/doc/README.POST b/doc/README.POST
index eeb218d..695497e 100644
--- a/doc/README.POST
+++ b/doc/README.POST
@@ -659,12 +659,11 @@ not need any modifications for porting them to another board/CPU.
2.2.2.1. I2C test
For verifying the I2C bus, a full I2C bus scanning will be performed
-using the i2c_probe() routine. If any I2C device is found, the test
-will be considered as passed, otherwise failed. This particular way
-will be used because it provides the most common method of testing.
-For example, using the internal loopback mode of the CPM I2C
-controller for testing would not work on boards where the software
-I2C driver (also known as bit-banged driver) is used.
+using the i2c_probe() routine. If a board defines
+CONFIG_SYS_POST_I2C_ADDRS the I2C test will pass if all devices
+listed in CONFIG_SYS_POST_I2C_ADDRS are found, and no additional
+devices are detected. If CONFIG_SYS_POST_I2C_ADDRS is not defined
+the test will pass if any I2C device is found.
2.2.2.2. Watchdog timer test