Writing to ext4 from U-Boot is dangerous in case of inconsistent filesystem state (i.e. due to power-loss). The current U-Boot code can modify the filesystem, so that it is no longer usable by Linux after fsck. This patchset avoids writing to the partition on GE devices by moving the boot counter to the last two bytes of VPD EEPROM (together with some VPD cleanups). It also adds non RTC device support to the i2c bootcounter driver.
-- Sebastian
Denis Zalevskiy (6): board: ge: Remove EEPROM bus param from read_vpd() board: ge: Move VPD EEPROM configuration to the defconfig bootcount: i2c: Add bus switching to the I2C bootcount driver bootcount: Configure length limit for I2C bootcount board: ge: Move VPD reading to the vpd_reader board: ge: Store bootcount in EEPROM on PPD and Bx50v3
board/ge/bx50v3/Kconfig | 2 + board/ge/bx50v3/bx50v3.c | 57 +++++----------------- board/ge/common/vpd_reader.c | 57 ++++++++++++++++++++-- board/ge/common/vpd_reader.h | 16 +++++-- board/ge/mx53ppd/Kconfig | 2 + board/ge/mx53ppd/mx53ppd.c | 50 ++++---------------- configs/ge_bx50v3_defconfig | 27 +++++++++-- configs/mx53ppd_defconfig | 29 ++++++++++-- drivers/bootcount/Kconfig | 21 ++++++++- drivers/bootcount/bootcount_i2c.c | 78 ++++++++++++++++++++++++++----- include/configs/ge_bx50v3.h | 6 +-- include/configs/mx53ppd.h | 6 +-- 12 files changed, 230 insertions(+), 121 deletions(-)