diff options
Diffstat (limited to 'src/mainboard/lenovo/t420s')
| -rw-r--r-- | src/mainboard/lenovo/t420s/Kconfig | 1 | ||||
| -rw-r--r-- | src/mainboard/lenovo/t420s/cmos.default | 1 | ||||
| -rw-r--r-- | src/mainboard/lenovo/t420s/cmos.layout | 5 |
3 files changed, 6 insertions, 1 deletions
diff --git a/src/mainboard/lenovo/t420s/Kconfig b/src/mainboard/lenovo/t420s/Kconfig index 935e659e0e..feacb51170 100644 --- a/src/mainboard/lenovo/t420s/Kconfig +++ b/src/mainboard/lenovo/t420s/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/t420s/cmos.default b/src/mainboard/lenovo/t420s/cmos.default index 1b8e212894..3a82c979dc 100644 --- a/src/mainboard/lenovo/t420s/cmos.default +++ b/src/mainboard/lenovo/t420s/cmos.default @@ -14,3 +14,4 @@ fn_ctrl_swap=Disable sticky_fn=Disable trackpoint=Enable hyper_threading=Enable +hybrid_graphics_mode=Integrated Only
\ No newline at end of file diff --git a/src/mainboard/lenovo/t420s/cmos.layout b/src/mainboard/lenovo/t420s/cmos.layout index 43628406a1..3521849cde 100644 --- a/src/mainboard/lenovo/t420s/cmos.layout +++ b/src/mainboard/lenovo/t420s/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 @@ -135,6 +136,8 @@ enumerations 11 4 160M 11 5 192M 11 6 224M +12 0 Integrated Only +12 1 Discrete Only # ----------------------------------------------------------------- checksums |