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/*
* This file is part of the coreboot project.
*
* Copyright 2013 Google 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 <device/pci_def.h>
#include <device/device.h>
#include <device/pci.h>
#include "pch.h"
void pch_config_rcba(const struct rcba_config_instruction *rcba_config)
{
const struct rcba_config_instruction *rc;
u32 value;
rc = rcba_config;
while (rc->command != RCBA_COMMAND_END)
{
if ((rc->command & RCBA_REG_SIZE_MASK) == RCBA_REG_SIZE_16) {
switch (rc->command & RCBA_COMMAND_MASK) {
case RCBA_COMMAND_SET:
RCBA16(rc->reg) = (u16)rc->or_value;
break;
case RCBA_COMMAND_READ:
(void)RCBA16(rc->reg);
break;
case RCBA_COMMAND_RMW:
value = RCBA16(rc->reg);
value &= rc->mask;
value |= rc->or_value;
RCBA16(rc->reg) = (u16)value;
break;
}
} else {
switch (rc->command & RCBA_COMMAND_MASK) {
case RCBA_COMMAND_SET:
RCBA32(rc->reg) = rc->or_value;
break;
case RCBA_COMMAND_READ:
(void)RCBA32(rc->reg);
break;
case RCBA_COMMAND_RMW:
value = RCBA32(rc->reg);
value &= rc->mask;
value |= rc->or_value;
RCBA32(rc->reg) = value;
break;
}
}
rc++;
}
}
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