aboutsummaryrefslogtreecommitdiff
path: root/src/southbridge/intel/ibexpeak/early_pch.c
blob: 00d58221a81ed8024573cd1d60ac497544a67947 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
/*
 * This file is part of the coreboot project.
 *
 *
 * 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 <stdint.h>
#include <device/pci_ops.h>
#include <device/smbus_host.h>
#include <northbridge/intel/ironlake/ironlake.h>
#include <southbridge/intel/ibexpeak/pch.h>
#include <southbridge/intel/common/gpio.h>

static void early_gpio_init(void)
{
	pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE | 1);
	pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10);

	setup_pch_gpios(&mainboard_gpio_map);
}

static void pch_default_disable(void)
{
	/* Must set BIT0 (hides performance counters PCI device).
	   coreboot enables the Rate Matching Hub which makes the UHCI PCI
	   devices disappear, so BIT5-12 and BIT28 can be set to hide those. */
	RCBA32(FD) = (1 << 28) | (0xff << 5) | 1;

	/* Set reserved bit to 1 */
	RCBA32(FD2) = 1;
}

void early_pch_init(void)
{
	early_gpio_init();
	enable_smbus();
	/* TODO, make this configurable */
	pch_setup_cir(IRONLAKE_MOBILE);
	southbridge_configure_default_intmap();
	pch_default_disable();
	early_usb_init(mainboard_usb_ports);
}