diff options
| author | Rizwan Qureshi <rizwan.qureshi@intel.com> | 2019-02-17 11:04:51 +0530 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-02-22 11:07:48 +0000 |
| commit | eb503296fcd4f6e2afbf2bebda63da23354058b0 (patch) | |
| tree | 3f1376667e480d6201466655310295c427d3242a /src/soc/intel/cannonlake/acpi | |
| parent | 3ba6caf81eb41247f21b9afccb30e15357ec101c (diff) | |
soc/intel/cannonlake: Add ASL function for setting pad mode
Add a function in gpio ASL library to set pad mode.
BUG=b:123350329
Change-Id: I6c683f27ddffc3132001706d1694c71bb5664577
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/c/31444
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/soc/intel/cannonlake/acpi')
| -rw-r--r-- | src/soc/intel/cannonlake/acpi/gpio_op.asl | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/acpi/gpio_op.asl b/src/soc/intel/cannonlake/acpi/gpio_op.asl index 0618601b9e..0c89e998c1 100644 --- a/src/soc/intel/cannonlake/acpi/gpio_op.asl +++ b/src/soc/intel/cannonlake/acpi/gpio_op.asl @@ -72,3 +72,25 @@ Method (CTXS, 1, Serialized) } And (Not (GPIOTXSTATE_MASK), VAL0, VAL0) } + +/* + * Set Pad mode + * Arg0 - GPIO Number + * Arg1 - Pad mode + * 0 = GPIO control pad + * 1 = Native Function 1 + * 2 = Native Function 2 + * 3 = Native Function 3 + */ +Method (GPMO, 2, Serialized) +{ + OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) + Field (PREG, AnyAcc, NoLock, Preserve) + { + VAL0, 32 + } + Store (VAL0, Local0) + And (Not (GPIOPADMODE_MASK), Local0, Local0) + And (ShiftLeft (Arg1, GPIOPADMODE_SHIFT, Arg1), GPIOPADMODE_MASK, Arg1) + Or (Local0, Arg1, VAL0) +} |