diff options
Diffstat (limited to 'src/soc/amd/common/acpi/gpio_bank_lib.asl')
| -rw-r--r-- | src/soc/amd/common/acpi/gpio_bank_lib.asl | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/soc/amd/common/acpi/gpio_bank_lib.asl b/src/soc/amd/common/acpi/gpio_bank_lib.asl index 9686ddc1c9..f209f448c1 100644 --- a/src/soc/amd/common/acpi/gpio_bank_lib.asl +++ b/src/soc/amd/common/acpi/gpio_bank_lib.asl @@ -2,6 +2,9 @@ #include <soc/iomap.h> +#define GPIO_OUTPUT_SHIFT 22 +#define GPIO_OUTPUT_VALUE (1 << GPIO_OUTPUT_SHIFT) + /* Get pin control MMIO address */ Method (GPAD, 0x1) { @@ -117,3 +120,31 @@ Method (GPW3, 0x2) /* Arg1 - Value for control register */ GPSB (Arg0, 3, Arg1) } + +/* + * Set GPIO Output Value + * Arg0 - GPIO Number + */ +Method (STXS, 1, Serialized) +{ + OperationRegion (GPDW, SystemMemory, GPAD (Arg0), 4) + Field (GPDW, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + VAL0 |= GPIO_OUTPUT_VALUE +} + +/* + * Clear GPIO Output Value + * Arg0 - GPIO Number + */ +Method (CTXS, 1, Serialized) +{ + OperationRegion (GPDW, SystemMemory, GPAD (Arg0), 4) + Field (GPDW, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + VAL0 &= ~GPIO_OUTPUT_VALUE +} |