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diff --git a/src/vendorcode/amd/cimx/sb900/Ec.c b/src/vendorcode/amd/cimx/sb900/Ec.c
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+
+/**
+ * @file
+ *
+ * Config Southbridge EC Controller
+ *
+ * Init EC features.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: CIMx-SB
+ * @e sub-project:
+ * @e \$Revision:$ @e \$Date:$
+ *
+ */
+/*;********************************************************************************
+;
+; Copyright (c) 2011, Advanced Micro Devices, Inc.
+; All rights reserved.
+;
+; Redistribution and use in source and binary forms, with or without
+; modification, are permitted provided that the following conditions are met:
+; * Redistributions of source code must retain the above copyright
+; notice, this list of conditions and the following disclaimer.
+; * Redistributions in binary form must reproduce the above copyright
+; notice, this list of conditions and the following disclaimer in the
+; documentation and/or other materials provided with the distribution.
+; * Neither the name of Advanced Micro Devices, Inc. nor the names of
+; its contributors may be used to endorse or promote products derived
+; from this software without specific prior written permission.
+;
+; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+; DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
+; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+;
+;*********************************************************************************/
+
+#include "SbPlatform.h"
+#include "cbtypes.h"
+
+#ifndef NO_EC_SUPPORT
+
+/**
+ * Config EC controller during power-on
+ *
+ *
+ *
+ * @param[in] pConfig Southbridge configuration structure pointer.
+ *
+ */
+VOID
+ecPowerOnInit (
+ IN AMDSBCFG* pConfig
+ )
+{
+ //Enable config mode
+ EnterEcConfig ();
+
+ //Do settings for mailbox - logical device 0x09
+ RWEC8 (0x07, 0x00, 0x09); //switch to device 9 (Mailbox)
+ RWEC8 (0x60, 0x00, (MailBoxPort >> 8)); //set MSB of Mailbox port
+ RWEC8 (0x61, 0x00, (MailBoxPort & 0xFF)); //set LSB of Mailbox port
+ RWEC8 (0x30, 0x00, 0x01); //;Enable Mailbox Registers Interface, bit0=1
+
+ if ( pConfig->BuildParameters.EcKbd == ENABLED) {
+ //Enable KBRST#, IRQ1 & IRQ12, GateA20 Function signal from IMC
+ RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REGD6, AccWidthUint8, ~BIT8, BIT0 + BIT1 + BIT2 + BIT3);
+
+ //Disable LPC Decoding of port 60/64
+ RWPCI (((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG47), AccWidthUint8 | S3_SAVE, ~BIT5, 0);
+
+ //Enable logical device 0x07 (Keyboard controller)
+ RWEC8 (0x07, 0x00, 0x07);
+ RWEC8 (0x30, 0x00, 0x01);
+ }
+
+ if (isImcEnabled () && ( pConfig->BuildParameters.EcChannel0 == ENABLED)) {
+ //Logical device 0x03
+ RWEC8 (0x07, 0x00, 0x03);
+ RWEC8 (0x60, 0x00, 0x00);
+ RWEC8 (0x61, 0x00, 0x62);
+ RWEC8 (0x30, 0x00, 0x01); //;Enable Device 3
+ }
+
+ //Enable EC (IMC) to generate SMI to BIOS
+ RWMEM (ACPI_MMIO_BASE + SMI_BASE + SB_SMI_REGB3, AccWidthUint8, ~BIT6, BIT6);
+ ExitEcConfig ();
+}
+
+/**
+ * Config EC controller before PCI emulation
+ *
+ *
+ *
+ * @param[in] pConfig Southbridge configuration structure pointer.
+ *
+ */
+VOID
+ecInitBeforePciEnum (
+ IN AMDSBCFG* pConfig
+ )
+{
+ AMDSBCFG* pTmp; // dummy code
+ pTmp = pConfig;
+}
+
+/**
+ * Prepare EC controller to boot to OS.
+ *
+ *
+ * @param[in] pConfig Southbridge configuration structure pointer.
+ *
+ */
+VOID
+ecInitLatePost (
+ IN AMDSBCFG* pConfig
+ )
+{
+ AMDSBCFG* pTmp; // dummy code
+ pTmp = pConfig;
+}
+#endif