diff options
Diffstat (limited to 'src/northbridge/intel/haswell/gma.c')
| -rw-r--r-- | src/northbridge/intel/haswell/gma.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c index 172aa7ed0d..fa4dec91e2 100644 --- a/src/northbridge/intel/haswell/gma.c +++ b/src/northbridge/intel/haswell/gma.c @@ -23,6 +23,7 @@ #include <drivers/intel/gma/i915_reg.h> #include <drivers/intel/gma/i915.h> #include <cpu/intel/haswell/haswell.h> +#include <northbridge/intel/common/gma_opregion.h> #include <stdlib.h> #include <string.h> @@ -493,6 +494,20 @@ static void gma_ssdt(device_t device) drivers_intel_gma_displays_ssdt_generate(gfx); } +/* Enable SCI to ACPI _GPE._L06 */ +static void gma_enable_swsci(void) +{ + u16 reg16; + + /* clear DMISCI status */ + reg16 = inw(get_pmbase() + TCO1_STS); + reg16 &= DMISCI_STS; + outw(get_pmbase() + TCO1_STS, reg16); + + /* clear and enable ACPI TCO SCI */ + enable_tco_sci(); +} + static unsigned long gma_write_acpi_tables(struct device *const dev, unsigned long current, @@ -500,11 +515,13 @@ gma_write_acpi_tables(struct device *const dev, { igd_opregion_t *opregion = (igd_opregion_t *)current; - if (init_igd_opregion(opregion)) + if (init_igd_opregion(opregion) != CB_SUCCESS) return current; current += sizeof(igd_opregion_t); + gma_enable_swsci(); + current = acpi_align_current(current); return current; } |