diff options
| author | Werner Zeh <werner.zeh@siemens.com> | 2018-02-14 08:04:50 +0100 |
|---|---|---|
| committer | Werner Zeh <werner.zeh@siemens.com> | 2018-02-15 07:33:16 +0000 |
| commit | 2012a2357d9845c832d182d524918e21547fb11c (patch) | |
| tree | 2722481e8a86a709e892dd6bd9f44e1391f4bcc6 | |
| parent | a45d94ac0bd388445957e0b116bbae12d010ae1a (diff) | |
siemens/mc_bdx1: Enable PCA9538 I/O expander
The I/O expander on the mc_bdx1 is used to get the hardware version of
the mainboard. This patch enables the chip driver for the I/O expander.
Change-Id: I98c667fe4dccf0698ab4cb5ede6082f020c70ec6
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/23749
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
| -rw-r--r-- | src/mainboard/siemens/mc_bdx1/Kconfig | 1 | ||||
| -rw-r--r-- | src/mainboard/siemens/mc_bdx1/devicetree.cb | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_bdx1/Kconfig b/src/mainboard/siemens/mc_bdx1/Kconfig index dc2093d58a..a24d09dc19 100644 --- a/src/mainboard/siemens/mc_bdx1/Kconfig +++ b/src/mainboard/siemens/mc_bdx1/Kconfig @@ -13,6 +13,7 @@ config BOARD_SPECIFIC_OPTIONS select DRIVER_INTEL_I210 select DRIVER_SIEMENS_NC_FPGA select DRIVERS_I2C_RX6110SA + select DRIVERS_I2C_PCA9538 config MAINBOARD_DIR string diff --git a/src/mainboard/siemens/mc_bdx1/devicetree.cb b/src/mainboard/siemens/mc_bdx1/devicetree.cb index 8bb582e383..6b5c118fd8 100644 --- a/src/mainboard/siemens/mc_bdx1/devicetree.cb +++ b/src/mainboard/siemens/mc_bdx1/devicetree.cb @@ -23,6 +23,13 @@ chip soc/intel/fsp_broadwell_de register "user_weekday" = "4" device i2c 0x32 on end # RTC RX6110 SA end + #Enable I/O expander + chip drivers/i2c/pca9538 + register "in_out" = "0xff" + register "invert" = "0x00" + register "out_val" = "0x00" + device i2c 0x71 on end # I/O expander + end end # SMBus Controller device pci 1f.5 on end # SATA Controller end |