From 8ff80b269d3e94c46d88c135f5f0e41e7c626905 Mon Sep 17 00:00:00 2001
From: Subrata Banik <subrata.banik@intel.com>
Date: Wed, 23 Sep 2020 19:17:12 +0530
Subject: soc/intel/common/block/acpi: Factor out common gpio_op.asl

This patch moves gpio_op.asl into common block acpi directory to
avoid duplicating the same ASL code block across SoC directory.

TEST=Able to build and boot TGL, CNL and CML platform.
1) Dump and disassemble DSDT, verify all methods present inside
common gpio_op.asl like GRXS, GTXS etc. are still there.
2) Verify no ACPI error seen while running 'dmesg` from console.

Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Change-Id: I248f5e66994d2f3d6b0bd398347e7cf9ae7f2cc6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45566
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
---
 src/soc/intel/common/block/acpi/acpi/gpio_op.asl | 127 +++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 src/soc/intel/common/block/acpi/acpi/gpio_op.asl

(limited to 'src/soc/intel/common/block')

diff --git a/src/soc/intel/common/block/acpi/acpi/gpio_op.asl b/src/soc/intel/common/block/acpi/acpi/gpio_op.asl
new file mode 100644
index 0000000000..9fa3dc4a86
--- /dev/null
+++ b/src/soc/intel/common/block/acpi/acpi/gpio_op.asl
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include <intelblocks/gpio_defs.h>
+
+/*
+ * Get GPIO Value
+ * Arg0 - GPIO Number
+ */
+Method (GRXS, 1, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		VAL0, 32
+	}
+	Local0 = (PAD_CFG0_RX_STATE & VAL0) >> PAD_CFG0_RX_STATE_BIT
+
+	Return (Local0)
+}
+
+/*
+ * Get GPIO Tx Value
+ * Arg0 - GPIO Number
+ */
+Method (GTXS, 1, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		VAL0, 32
+	}
+	Local0 = PAD_CFG0_TX_STATE & VAL0
+
+	Return (Local0)
+}
+
+/*
+ * Set GPIO Tx Value
+ * Arg0 - GPIO Number
+ */
+Method (STXS, 1, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		VAL0, 32
+	}
+	VAL0 |= PAD_CFG0_TX_STATE
+}
+
+/*
+ * Clear GPIO Tx Value
+ * Arg0 - GPIO Number
+ */
+Method (CTXS, 1, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		VAL0, 32
+	}
+	VAL0 &= ~PAD_CFG0_TX_STATE
+}
+
+/*
+ * 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
+	}
+	Local0 = ~PAD_CFG0_MODE_MASK & VAL0
+	Arg1 = (Arg1 << PAD_CFG0_MODE_SHIFT) & PAD_CFG0_MODE_MASK
+	VAL0 = Local0 | Arg1
+}
+
+/*
+ * Enable/Disable Tx buffer
+ * Arg0 - GPIO Number
+ * Arg1 - TxBuffer state
+ *     0 = Disable Tx Buffer
+ *     1 = Enable Tx Buffer
+ */
+Method (GTXE, 2, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		VAL0, 32
+	}
+
+	If (Arg1 == 1) {
+		VAL0 &= ~PAD_CFG0_TX_DISABLE
+	} ElseIf (Arg1 == 0){
+		VAL0 |= PAD_CFG0_TX_DISABLE
+	}
+}
+
+/*
+ * Enable/Disable Rx buffer
+ * Arg0 - GPIO Number
+ * Arg1 - RxBuffer state
+ *     0 = Disable Rx Buffer
+ *     1 = Enable Rx Buffer
+ */
+Method (GRXE, 2, Serialized)
+{
+	OperationRegion (PREG, SystemMemory, GADD (Arg0), 4)
+	Field (PREG, AnyAcc, NoLock, Preserve)
+	{
+		VAL0, 32
+	}
+
+	If (Arg1 == 1) {
+		VAL0 &= ~PAD_CFG0_RX_DISABLE
+	} ElseIf (Arg1 == 0){
+		VAL0 |= PAD_CFG0_RX_DISABLE
+	}
+}
-- 
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