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authorElyes HAOUAS <ehaouas@noos.fr>2019-10-31 10:12:02 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-11-04 11:35:16 +0000
commit085ab5a3472689fcd6c7d0e4c4fee2d8b4cdb763 (patch)
tree058da8257faf0c8e8c0235fdfe2c5f0febcf4c43 /src/southbridge/intel/i82801gx/acpi
parentca64305152df777b6d53834c0d13b11636e9919a (diff)
sb/intel: Move 'smbus.asl' to common place
Change-Id: Ia5b148c54224269bda98afe7c8a2c22c10a3bf56 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36500 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: David Guckian Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/southbridge/intel/i82801gx/acpi')
-rw-r--r--src/southbridge/intel/i82801gx/acpi/ich7.asl2
-rw-r--r--src/southbridge/intel/i82801gx/acpi/smbus.asl236
2 files changed, 1 insertions, 237 deletions
diff --git a/src/southbridge/intel/i82801gx/acpi/ich7.asl b/src/southbridge/intel/i82801gx/acpi/ich7.asl
index d63b00e52b..c3b9687255 100644
--- a/src/southbridge/intel/i82801gx/acpi/ich7.asl
+++ b/src/southbridge/intel/i82801gx/acpi/ich7.asl
@@ -186,4 +186,4 @@ Scope(\)
#include "sata.asl"
// SMBus
-#include "smbus.asl"
+#include <southbridge/intel/common/acpi/smbus.asl>
diff --git a/src/southbridge/intel/i82801gx/acpi/smbus.asl b/src/southbridge/intel/i82801gx/acpi/smbus.asl
deleted file mode 100644
index 3b314e4054..0000000000
--- a/src/southbridge/intel/i82801gx/acpi/smbus.asl
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-// Intel SMBus Controller 0:1f.3
-
-Device (SBUS)
-{
- Name (_ADR, 0x001f0003)
-
-#ifdef ENABLE_SMBUS_METHODS
- OperationRegion (SMBP, PCI_Config, 0x00, 0x100)
- Field(SMBP, DWordAcc, NoLock, Preserve)
- {
- Offset(0x40),
- , 2,
- I2CE, 1
- }
-
- OperationRegion (SMBI, SystemIO, 0x400, 0x20)
- Field (SMBI, ByteAcc, NoLock, Preserve)
- {
- HSTS, 8, // Host Status
- , 8,
- HCNT, 8, // Host Control
- HCMD, 8, // Host Command
- TXSA, 8, // Transmit Slave Address
- DAT0, 8, // Host Data 0
- DAT1, 8, // Host Data 1
- HBDB, 8, // Host Block Data Byte
- PECK, 8, // Packet Error Check
- RXSA, 8, // Receive Slave Address
- RXDA, 16, // Receive Slave Data
- AUXS, 8, // Auxiliary Status
- AUXC, 8, // Auxiliary Control
- SLPC, 8, // SMLink Pin Control
- SBPC, 8, // SMBus Pin Control
- SSTS, 8, // Slave Status
- SCMD, 8, // Slave Command
- NADR, 8, // Notify Device Address
- NDLB, 8, // Notify Data Low Byte
- NDLH, 8, // Notify Data High Byte
- }
-
- // Kill all SMBus communication
- Method (KILL, 0, Serialized)
- {
- Or (HCNT, 0x02, HCNT) // Send Kill
- Or (HSTS, 0xff, HSTS) // Clean Status
- }
-
- // Check if last operation completed
- // return Failure = 0, Success = 1
- Method (CMPL, 0, Serialized)
- {
- Store (4000, Local0) // Timeout 200ms in 50us steps
- While (Local0) {
- If (And(HSTS, 0x02)) { // Completion Status?
- Return (1) // Operation Completed
- } Else {
- Stall (50)
- Decrement (Local0)
- If (LEqual(Local0, 0)) {
- KILL()
- }
- }
- }
-
- Return (0) // Failure
- }
-
-
- // Wait for SMBus to become ready
- Method (SRDY, 0, Serialized)
- {
- Store (200, Local0) // Timeout 200ms
- While (Local0) {
- If (And(HSTS, 0x40)) { // IN_USE?
- Sleep(1) // Wait 1ms
- Decrement(Local0) // timeout--
- If (LEqual(Local0, 0)) {
- Return (1)
- }
- } Else {
- Store (0, Local0) // We're ready
- }
- }
-
- Store (4000, Local0) // Timeout 200ms (50us * 4000)
- While (Local0) {
- If (And (HSTS, 0x01)) { // Host Busy?
- Stall(50) // Wait 50us
- Decrement(Local0) // timeout--
- If (LEqual(Local0, 0)) {
- KILL()
- }
- } Else {
- Return (0) // Success
- }
- }
-
- Return (1) // Failure
- }
-
- // SMBus Send Byte
- // Arg0: Address
- // Arg1: Data
- // Return: 1 = Success, 0=Failure
-
- Method (SSXB, 2, Serialized)
- {
-
- // Is the SMBus Controller Ready?
- If (SRDY()) {
- Return (0)
- }
-
- // Send Byte
- Store (0, I2CE) // SMBus Enable
- Store (0xbf, HSTS)
- Store (Arg0, TXSA) // Write Address
- Store (Arg1, HCMD) // Write Data
-
- Store (0x48, HCNT) // Start + Byte Data Protocol
-
- If (CMPL()) {
- Or (HSTS, 0xff, HSTS) // Clean up
- Return (1) // Success
- }
-
- Return (0)
- }
-
-
- // SMBus Receive Byte
- // Arg0: Address
- // Return: 0xffff = Failure, Data (8bit) = Success
-
- Method (SRXB, 2, Serialized)
- {
-
- // Is the SMBus Controller Ready?
- If (SRDY()) {
- Return (0xffff)
- }
-
- // Receive Byte
- Store (0, I2CE) // SMBus Enable
- Store (0xbf, HSTS)
- Store (Or (Arg0, 1), TXSA) // Write Address
-
- Store (0x44, HCNT) // Start
-
- If (CMPL()) {
- Or (HSTS, 0xff, HSTS) // Clean up
- Return (DAT0) // Success
- }
-
- Return (0xffff)
- }
-
-
- // SMBus Write Byte
- // Arg0: Address
- // Arg1: Command
- // Arg2: Data
- // Return: 1 = Success, 0=Failure
-
- Method (SWRB, 3, Serialized)
- {
-
- // Is the SMBus Controller Ready?
- If (SRDY()) {
- Return (0)
- }
-
- // Send Byte
- Store (0, I2CE) // SMBus Enable
- Store (0xbf, HSTS)
- Store (Arg0, TXSA) // Write Address
- Store (Arg1, HCMD) // Write Command
- Store (Arg2, DAT0) // Write Data
-
- Store (0x48, HCNT) // Start + Byte Protocol
-
- If (CMPL()) {
- Or (HSTS, 0xff, HSTS) // Clean up
- Return (1) // Success
- }
-
- Return (0)
- }
-
-
- // SMBus Read Byte
- // Arg0: Address
- // Arg1: Command
- // Return: 0xffff = Failure, Data (8bit) = Success
-
- Method (SRDB, 2, Serialized)
- {
-
- // Is the SMBus Controller Ready?
- If (SRDY()) {
- Return (0xffff)
- }
-
- // Receive Byte
- Store (0, I2CE) // SMBus Enable
- Store (0xbf, HSTS)
- Store (Or (Arg0, 1), TXSA) // Write Address
- Store (Arg1, HCMD) // Command
-
- Store (0x48, HCNT) // Start
-
- If (CMPL()) {
- Or (HSTS, 0xff, HSTS) // Clean up
- Return (DAT0) // Success
- }
-
- Return (0xffff)
- }
-#endif
-}