[PATCH u-boot, v2019.04-aspeed-openbmc 00/12] misc: i2c_eeprom: Backport commits for proper pagesize and partition support

[Tan Siewert]

This series adds proper support for pagesizes and partitions on
EEPROMs connected via an I2C bus. All commits were backported from
upstream tag v2021.04.

The original issue arised during debugging a platform that gets its
MAC address from an Atmel 24c128 EEPROM instead of the hardware,
which always failed [1].

With the patches applied, the EEPROM can be read properly.

Before:

 ast# i2c dev 7
 ast# i2c md 0x57 0x3f80 6
 3f80: ff ff ff ff ff ff    ......

After:

 ast# i2c bus
 Bus 3:    i2c-bus at 100
 Bus 7:    i2c-bus at 300  (active 7)
    57: eeprom at 57, offset len 2, flags 0
 ast# i2c md 0x57 0x3f80 6
 3f80: 78 24 35 bb cd 01    x$5...

[1] https://discord.com/channels/775381525260664832/775694683589574659/1329524655752745044

Baruch Siach (3):
  misc: i2c_eeprom: support DT pagesize property
  misc: i2c_eeprom: add eeprom write support
  misc: i2c_eeprom: verify that the chip is functional at probe()

Eugen Hristev (1):
  misc: i2c_eeprom: implement different probe test eeprom offset

Masahiro Yamada (2):
  misc: i2c_eeprom: remove pagewidth field from i2c_eeprom
  misc: i2c_eeprom: store pagesize instead of pagewidth in
    i2c_eeprom_drv_data

Michal Simek (1):
  i2c: eeprom: Use reg property instead of offset and size

Robert Beckett (4):
  i2c: add support for offset overflow in to address
  misc: i2c_eeprom: add fixed partitions support
  misc: i2c_eeprom: add size query
  misc: i2c_eeprom: set offset len and chip addr offset mask

Simon Glass (1):
  common: Move old EEPROM functions into a new header

 arch/sandbox/dts/test.dts                     |  13 +
 board/atmel/common/mac_eeprom.c               |   1 +
 board/compulab/common/eeprom.c                |   1 +
 board/corscience/tricorder/tricorder-eeprom.c |   1 +
 board/dhelectronics/dh_imx6/dh_imx6.c         |   1 +
 board/freescale/mpc8323erdb/mpc8323erdb.c     |   1 +
 board/kosagi/novena/novena.c                  |   1 +
 board/phytec/phycore_rk3288/phycore-rk3288.c  |   1 +
 board/rockchip/tinker_rk3288/tinker-rk3288.c  |   1 +
 board/samtec/vining_fpga/socfpga.c            |   1 +
 board/ti/am43xx/board.c                       |   1 +
 board/ti/ks2_evm/board_k2g.c                  |   1 +
 cmd/eeprom.c                                  |   1 +
 configs/sandbox_defconfig                     |   1 +
 drivers/i2c/i2c-uclass.c                      |  34 +-
 drivers/misc/i2c_eeprom.c                     | 316 ++++++++++++++++--
 drivers/mtd/mw_eeprom.c                       |   1 +
 drivers/rtc/rv3029.c                          |   1 +
 env/eeprom.c                                  |   1 +
 include/common.h                              |  15 -
 include/eeprom.h                              |  24 ++
 include/i2c.h                                 |  33 ++
 include/i2c_eeprom.h                          |  14 +-
 test/dm/bootcount.c                           |   8 +
 24 files changed, 430 insertions(+), 43 deletions(-)
 create mode 100644 include/eeprom.h

-- 
2.47.0