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Diffstat (limited to 'src/southbridge/amd/cimx/sb800/acpi/smbus.asl')
-rw-r--r--src/southbridge/amd/cimx/sb800/acpi/smbus.asl96
1 files changed, 0 insertions, 96 deletions
diff --git a/src/southbridge/amd/cimx/sb800/acpi/smbus.asl b/src/southbridge/amd/cimx/sb800/acpi/smbus.asl
deleted file mode 100644
index b81c5b1c37..0000000000
--- a/src/southbridge/amd/cimx/sb800/acpi/smbus.asl
+++ /dev/null
@@ -1,96 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-/* SMBUS Support */
-Mutex (SBX0, 0x00)
-OperationRegion (SMB0, SystemIO, 0xB00, 0x0C)
- Field (SMB0, ByteAcc, NoLock, Preserve) {
- HSTS, 8, /* SMBUS status */
- SSTS, 8, /* SMBUS slave status */
- HCNT, 8, /* SMBUS control */
- HCMD, 8, /* SMBUS host cmd */
- HADD, 8, /* SMBUS address */
- DAT0, 8, /* SMBUS data0 */
- DAT1, 8, /* SMBUS data1 */
- BLKD, 8, /* SMBUS block data */
- SCNT, 8, /* SMBUS slave control */
- SCMD, 8, /* SMBUS shadow cmd */
- SEVT, 8, /* SMBUS slave event */
- SDAT, 8 /* SMBUS slave data */
-}
-
-Method (WCLR, 0, NotSerialized) { /* clear SMBUS status register */
- HSTS = 0x1e
- Local0 = 0xfa
- While ((HSTS & 0x1e) != 0) && (Local0 > 0)) {
- Stall (0x64)
- Local0--
- }
-
- Return (Local0)
-}
-
-Method (SWTC, 1, NotSerialized) {
- Local0 = Arg0
- Local2 = 0x07
- Local1 = 1
- While (Local1 == 1) {
- Local3 = HSTS & 0x1e
- If (Local3 != 0) { /* read success */
- If (Local3 != 0x02) {
- Local2 = 0
- }
-
- Local1 = 0
- }
- Else {
- If (Local0 < 0x0A) { /* read failure */
- Local2 = 0x10
- Local1 = 0
- }
- Else {
- Sleep (0x0A) /* 10 ms, try again */
- Local0 -= 0x0a
- }
- }
- }
-
- Return (Local2)
-}
-
-Method (SMBR, 3, NotSerialized) {
- Local0 = 0x07
- If (Acquire (SBX0, 0xFFFF) == 0) {
- Local0 = WCLR () /* clear SMBUS status register before read data */
- If (Local0 == 0) {
- Release (SBX0)
- Return (0x0)
- }
-
- HSTS = 0x1f
- HADD = (Arg1 << 1) | 1
- HCMD = Arg2
- If (Arg0 == 0x07) {
- HCNT = 0x48 /* read byte */
- }
-
- Local1 = SWTC (0x03E8) /* 1000 ms */
- If (Local1 == 0) {
- If (Arg0 == 0x07) {
- Local0 = DAT0
- }
- }
- Else {
- Local0 = Local1
- }
-
- Release (SBX0)
- }
-
- /* DBGO("the value of SMBusData0 register ") */
- /* DBGO(Arg2) */
- /* DBGO(" is ") */
- /* DBGO(Local0) */
- /* DBGO("\n") */
-
- Return (Local0)
-}