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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
// Use simple device model for this file even in ramstage
#define __SIMPLE_DEVICE__
#include <device/pci_ops.h>
#include <cf9_reset.h>
#include <reset.h>
#define HT_INIT_CONTROL 0x6C
#define HTIC_BIOSR_Detect (1<<5)
#define DEV_CDB 0x18
#define NODE_PCI(x, fn) (((DEV_CDB+x)<32)?(PCI_DEV(0,(DEV_CDB+x),fn)):(PCI_DEV((0-1),(DEV_CDB+x-32),fn)))
void cf9_reset_prepare(void)
{
u32 nodes;
u32 htic;
pci_devfn_t dev;
int i;
nodes = ((pci_read_config32(PCI_DEV(0, DEV_CDB, 0), 0x60) >> 4) & 7) + 1;
for (i = 0; i < nodes; i++) {
dev = NODE_PCI(i, 0);
htic = pci_read_config32(dev, HT_INIT_CONTROL);
htic &= ~HTIC_BIOSR_Detect;
pci_write_config32(dev, HT_INIT_CONTROL, htic);
}
}
void do_board_reset(void)
{
system_reset();
}
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