17 Dec
2019
17 Dec
'19
12:57 p.m.
Hello Robert,
Am 28.10.2019 um 18:44 schrieb Robert Beckett:
Some devices (2 wire eeproms for example) use some bits from the chip address to represent the high bits of the offset instead of or as well as using multiple bytes for the offset, effectively stealing chip addresses on the bus.
Add a chip offset mask that can be set for any i2c chip which gets filled with the offset overflow during offset setup.
Signed-off-by: Robert Beckett bob.beckett@collabora.com Signed-off-by: Ian Ray ian.ray@ge.com
drivers/i2c/i2c-uclass.c | 34 +++++++++++++++++++++++++++------- include/i2c.h | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+), 7 deletions(-)
Applied to u-boot-i2c next branch.
Thanks!
bye, Heiko
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-52 Fax: +49-8142-66989-80 Email: hs@denx.de