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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
* Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
* Copyright (C) 2013 Vladimir Serbinenko <phcoder@gmail.com>
*
* 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 <northbridge/intel/nehalem/nehalem.h>
#include <southbridge/intel/ibexpeak/pch.h>
#include <southbridge/intel/common/gpio.h>
#include "chip.h"
static void early_lpc_init(void)
{
const struct device *dev = pcidev_on_root(0x1f, 0);
const struct southbridge_intel_ibexpeak_config *config = NULL;
/* Add some default decode ranges:
- 0x2e/2f, 0x4e/0x4f
- EC/Mouse/KBC 60/64, 62/66
- 0x3f8 COMA
If more are needed, update in mainboard_lpc_init hook
*/
pci_write_config16(PCH_LPC_DEV, LPC_EN,
CNF2_LPC_EN | CNF1_LPC_EN | MC_LPC_EN | KBC_LPC_EN |
COMA_LPC_EN);
pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x10);
/* Clear PWR_FLR */
pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3,
(pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3) & ~2) | 1);
pci_write_config32(PCH_LPC_DEV, ETR3,
pci_read_config32(PCH_LPC_DEV, ETR3) & ~ETR3_CF9GR);
/* Set up generic decode ranges */
if (!dev)
return;
if (dev->chip_info)
config = dev->chip_info;
if (!config)
return;
pci_write_config32(PCH_LPC_DEV, LPC_GEN1_DEC, config->gen1_dec);
pci_write_config32(PCH_LPC_DEV, LPC_GEN2_DEC, config->gen2_dec);
pci_write_config32(PCH_LPC_DEV, LPC_GEN3_DEC, config->gen3_dec);
pci_write_config32(PCH_LPC_DEV, LPC_GEN4_DEC, config->gen4_dec);
}
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_lpc_init();
mainboard_lpc_init();
early_gpio_init();
/* TODO, make this configurable */
pch_setup_cir(NEHALEM_MOBILE);
southbridge_configure_default_intmap();
pch_default_disable();
early_usb_init(mainboard_usb_ports);
}
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