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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <arch/io.h>
#include <northbridge/amd/agesa/state_machine.h>
#include <southbridge/amd/agesa/hudson/hudson.h>
void board_BeforeAgesa(struct sysinfo *cb)
{
/* For serial port option, plug-in card on LPC. */
pci_devfn_t dev = PCI_DEV(0, 0x14, 3);
pci_write_config32(dev, 0x44, 0xff03ffd5);
hudson_lpc_port80();
/* In Hudson RRG, PMIOxD2[5:4] is "Drive strength control for
* LpcClk[1:0]". To be consistent with Parmer, setting to 4mA
* even though the register is not documented in the Kabini BKDG.
* Otherwise the serial output is bad code.
*/
outb(0xD2, 0xcd6);
outb(0x00, 0xcd7);
}
#if 0
/* LPC clock? Should happen before enable_serial. */
/* On Larne, after LpcClkDrvSth is set, it needs some time to be stable, because of the buffer ICS551M */
int i;
for(i = 0; i < 200000; i++)
val = inb(0xcd6);
#endif
#if 0
/* Was before copy_and_run. */
outb(0xEA, 0xCD6);
outb(0x1, 0xcd7);
#endif
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