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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Vladimir Serbinenko
*
* 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 <device/pci_ops.h>
#include <device/pci_def.h>
#include <northbridge/intel/sandybridge/sandybridge.h>
#include "pch.h"
void early_usb_init(const struct southbridge_usb_port *portmap)
{
u32 reg32;
const u32 rcba_dump[8] = {
/* 3560 */ 0x024c8001, 0x000024a3, 0x00040002, 0x01000050,
/* 3570 */ 0x02000772, 0x16000f9f, 0x1800ff4f, 0x0001d630,
};
const u32 currents[] = { 0x20000153, 0x20000f57, 0x2000055b, 0x20000f51,
0x2000094a, 0x2000035f, 0x20000f53, 0x20000357,
0x20000353 };
int i;
/* Activate PMBAR. */
pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE, DEFAULT_PMBASE | 1);
pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE + 4, 0);
/* Enable ACPI BAR */
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44 /* ACPI_CNTL */, 0x80);
/* Unlock registers. */
outw(inw(DEFAULT_PMBASE | UPRWC) | UPRWC_WR_EN,
DEFAULT_PMBASE | UPRWC);
for (i = 0; i < 14; i++)
write32(DEFAULT_RCBABASE + (0x3500 + 4 * i),
currents[portmap[i].current]);
for (i = 0; i < 10; i++)
write32(DEFAULT_RCBABASE + (0x3538 + 4 * i), 0);
for (i = 0; i < 8; i++)
write32(DEFAULT_RCBABASE + (0x3560 + 4 * i), rcba_dump[i]);
for (i = 0; i < 8; i++)
write32(DEFAULT_RCBABASE + (0x3580 + 4 * i), 0);
reg32 = 0;
for (i = 0; i < 14; i++)
if (!portmap[i].enabled)
reg32 |= (1 << i);
write32(DEFAULT_RCBABASE + USBPDO, reg32);
reg32 = 0;
for (i = 0; i < 8; i++)
if (portmap[i].enabled && portmap[i].oc_pin >= 0)
reg32 |= (1 << (i + 8 * portmap[i].oc_pin));
write32(DEFAULT_RCBABASE + USBOCM1, reg32);
reg32 = 0;
for (i = 8; i < 14; i++)
if (portmap[i].enabled && portmap[i].oc_pin >= 4)
reg32 |= (1 << (i - 8 + 8 * (portmap[i].oc_pin - 4)));
write32(DEFAULT_RCBABASE + USBOCM2, reg32);
for (i = 0; i < 22; i++)
write32(DEFAULT_RCBABASE + (0x35a8 + 4 * i), 0);
pci_write_config32(PCI_DEV(0, 0x14, 0), 0xe4, 0x00000000);
/* Relock registers. */
outw(0, DEFAULT_PMBASE | UPRWC);
}
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