summaryrefslogtreecommitdiff
path: root/src/mainboard/lenovo/t520
diff options
context:
space:
mode:
Diffstat (limited to 'src/mainboard/lenovo/t520')
-rw-r--r--src/mainboard/lenovo/t520/Kconfig1
-rw-r--r--src/mainboard/lenovo/t520/cmos.default1
-rw-r--r--src/mainboard/lenovo/t520/cmos.layout5
3 files changed, 6 insertions, 1 deletions
diff --git a/src/mainboard/lenovo/t520/Kconfig b/src/mainboard/lenovo/t520/Kconfig
index c70581a4fb..ee5dd8163a 100644
--- a/src/mainboard/lenovo/t520/Kconfig
+++ b/src/mainboard/lenovo/t520/Kconfig
@@ -18,6 +18,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select INTEL_INT15
select SANDYBRIDGE_IVYBRIDGE_LVDS
select MAINBOARD_HAS_LPC_TPM
+ select DRIVERS_LENOVO_HYBRID_GRAPHICS
# Workaround for EC/KBC IRQ1.
select SERIRQ_CONTINUOUS_MODE
diff --git a/src/mainboard/lenovo/t520/cmos.default b/src/mainboard/lenovo/t520/cmos.default
index 00e8863145..ad7dcf54d3 100644
--- a/src/mainboard/lenovo/t520/cmos.default
+++ b/src/mainboard/lenovo/t520/cmos.default
@@ -15,3 +15,4 @@ sticky_fn=Disable
trackpoint=Enable
hyper_threading=Enable
backlight=Both
+hybrid_graphics_mode=Integrated Only \ No newline at end of file
diff --git a/src/mainboard/lenovo/t520/cmos.layout b/src/mainboard/lenovo/t520/cmos.layout
index 2cf362956c..044c3107a5 100644
--- a/src/mainboard/lenovo/t520/cmos.layout
+++ b/src/mainboard/lenovo/t520/cmos.layout
@@ -77,7 +77,8 @@ entries
# coreboot config options: northbridge
432 3 e 11 gfx_uma_size
-#435 5 r 0 unused
+435 2 e 12 hybrid_graphics_mode
+#437 3 r 0 unused
440 8 h 0 volume
# SandyBridge MRC Scrambler Seed values
@@ -134,6 +135,8 @@ enumerations
11 4 160M
11 5 192M
11 6 224M
+12 0 Integrated Only
+12 1 Discrete Only
# -----------------------------------------------------------------
checksums