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authorTim Wawrzynczak <twawrzynczak@chromium.org>2022-08-16 14:43:03 -0600
committerFelix Held <felix-coreboot@felixheld.de>2022-08-30 16:35:10 +0000
commit7b42153e589eaabfca590f033e53ed85b313e64a (patch)
tree8d815d5ad7fdfb4265149f65bc00c6e8cd239880 /src/soc
parenta057d2cfd1b19376a732aba109f0a4b79f4b6936 (diff)
soc/intel/cmn/block/acpi: Add new GPIO ASL Method
Ths new Method, GSCI, allows control over whether or not IRQs are routed as SCI#s for the given GPIO. Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: Ic61caaf77d2c6e295e67a1501544e8b8fc6f3b6a Reviewed-on: https://review.coreboot.org/c/coreboot/+/66813 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Subrata Banik <subratabanik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
-rw-r--r--src/soc/intel/common/block/acpi/acpi/gpio_op.asl19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/acpi/acpi/gpio_op.asl b/src/soc/intel/common/block/acpi/acpi/gpio_op.asl
index 55d254057a..25e73651b0 100644
--- a/src/soc/intel/common/block/acpi/acpi/gpio_op.asl
+++ b/src/soc/intel/common/block/acpi/acpi/gpio_op.asl
@@ -117,3 +117,22 @@ Method (GRXE, 2, Serialized)
RXDI = !Arg1
}
+
+/*
+ * Enable/Disable SCI interrupt route
+ * Arg0 - GPIO Number
+ * Arg1 - Route to SCI#
+ * 0 = Disable IRQ route to SCI#
+ * 1 = Enable IRQ route to SCI#
+ */
+Method (GSCI, 2, Serialized)
+{
+ OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+ Field (PREG, AnyAcc, NoLock, Preserve)
+ {
+ , 19,
+ SCIR, 1,
+ }
+
+ SCIR = Arg1
+}