diff options
Diffstat (limited to 'common/Kconfig')
| -rw-r--r-- | common/Kconfig | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/common/Kconfig b/common/Kconfig index 30bf225362e..0c25a8fc866 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -1264,4 +1264,13 @@ config VPL_IMAGE_SIGN_INFO endif config IO_TRACE - bool + bool "Intercept and checksum all I/O accesses" + depends on ARM || SANDBOX + default y if SANDBOX + help + When enabled, U-Boot intercepts all I/O accesses and can checksum + them or write a list of them out to memory. See the 'iotrace' command + for details. This is useful for testing device drivers since it can + confirm that the driver behaves the same way before and after a code + change. To add support for your architecture, add '#include + <iotrace.h>' to the bottom of arch/<arch>/include/asm/io.h and test. |