tree 4c5c0dd039969cd8fc6723047fac0a7576fdb373
parent 939f36073b81a15d8e46e3839a60beb002f3e558
author Zhikui Ren <zhikui.ren@intel.com> 1654661013 -0700
committer Zhikui Ren <zhikui.ren@intel.com> 1655331035 +0000

Detect Write Protect when programming MAC address

When Write Protect is enabled, write to eeprom chips from different
vendors fail differently. For ATMEL chip, write returns success, read
and verify is needed to detect write failure. For STMicroelectronics,
write return error, add read attempt to detect if Write Protect is
enabled.

Tested:
No regression in MAC programing commands.
Fake write error and verified read is tried through debug print.

Signed-off-by: Zhikui Ren <zhikui.ren@intel.com>
Change-Id: I8d9a851d9fde7a0bd6b0a681d13c5be55f43f6cc