GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Werner Zeh 2018-02-14 08:04:50 +01:00
parent a45d94ac0b
commit 2012a2357d
2 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/mainboard/siemens/mc_bdx1/Kconfig
View File

@ -13,6 +13,7 @@ config BOARD_SPECIFIC_OPTIONS
select DRIVER_INTEL_I210 select DRIVER_INTEL_I210
select DRIVER_SIEMENS_NC_FPGA select DRIVER_SIEMENS_NC_FPGA
select DRIVERS_I2C_RX6110SA select DRIVERS_I2C_RX6110SA
select DRIVERS_I2C_PCA9538
config MAINBOARD_DIR config MAINBOARD_DIR
string string

7
src/mainboard/siemens/mc_bdx1/devicetree.cb
View File

@ -23,6 +23,13 @@ chip soc/intel/fsp_broadwell_de
register "user_weekday" = "4" register "user_weekday" = "4"
device i2c 0x32 on end # RTC RX6110 SA device i2c 0x32 on end # RTC RX6110 SA
end 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 end # SMBus Controller
device pci 1f.5 on end # SATA Controller device pci 1f.5 on end # SATA Controller
end end