X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=doc%2FREADME.POST;h=6815d491cf4fbcaf790c332722257a279564e54e;hb=2bbcccf552cbbd076ba8055fc693fc207cd60482;hp=0d5e20e9773d852cc63a5001dd6b86094239b141;hpb=83653121d7382fccfe329cb732f77f116341ef1d;p=karo-tx-uboot.git

diff --git a/doc/README.POST b/doc/README.POST
index 0d5e20e977..6815d491cf 100644
--- a/doc/README.POST
+++ b/doc/README.POST
@@ -659,12 +659,19 @@ 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.
+
+The CONFIG_SYS_POST_I2C_IGNORES define can be used to list I2C
+devices which may or may not be present when using
+CONFIG_SYS_POST_I2C_ADDRS.  The I2C POST test will pass regardless
+if the devices in CONFIG_SYS_POST_I2C_IGNORES are found or not.
+This is useful in cases when I2C devices are optional (eg on a
+daughtercard that may or may not be present) or not critical
+to board operation.
 
 2.2.2.2. Watchdog timer test
 
@@ -713,7 +720,7 @@ use external loopback for testing. That will need appropriate
 reconfiguration of the physical interface chip.
 
 The test routines for the SCC ethernet tests will be located in
-arch/ppc/cpu/mpc8xx/scc.c.
+arch/powerpc/cpu/mpc8xx/scc.c.
 
 2.2.3.2. UART tests (SMC/SCC)
 
@@ -725,7 +732,7 @@ will be transmitted. These tests may be enhanced to make to perform
 test will be executed manually.
 
 The test routine for the SMC/SCC UART tests will be located in
-arch/ppc/cpu/mpc8xx/serial.c.
+arch/powerpc/cpu/mpc8xx/serial.c.
 
 2.2.3.3. USB test