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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 coresystems GmbH
* Copyright (C) 2009 Thomas Jourdan <thomas.jourdan@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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#define __PRE_RAM__
#include <delay.h>
#include <stdint.h>
#include <arch/io.h>
#include <arch/romcc_io.h>
#include <device/pci_def.h>
#include <device/pnp_def.h>
#include <cpu/x86/lapic.h>
#include "option_table.h"
#include "pc80/mc146818rtc_early.c"
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include <cpu/x86/bist.h>
#include "lib/ramtest.c"
#include "southbridge/intel/i3100/i3100_early_smbus.c"
#include "southbridge/intel/i3100/i3100_early_lpc.c"
#include "reset.c"
#include "superio/intel/i3100/i3100_early_serial.c"
#include "superio/smsc/smscsuperio/smscsuperio_early_serial.c"
/* Data */
#define UART_RBR 0x00
#define UART_TBR 0x00
/* Control */
#define UART_IER 0x01
#define UART_IIR 0x02
#define UART_FCR 0x02
#define UART_LCR 0x03
#define UART_MCR 0x04
#define UART_DLL 0x00
#define UART_DLM 0x01
/* Status */
#define UART_LSR 0x05
#define UART_MSR 0x06
#define UART_SCR 0x07
#define SIO_GPIO_BASE 0x680
#define SIO_XBUS_BASE 0x4880
#define DEVPRES_CONFIG (DEVPRES_D1F0 | DEVPRES_D2F0 | DEVPRES_D3F0)
#define DEVPRES1_CONFIG (DEVPRES1_D0F1 | DEVPRES1_D8F0)
#define IA32_PERF_STS 0x198
#define IA32_PERF_CTL 0x199
#define MSR_THERM2_CTL 0x19D
#define IA32_MISC_ENABLES 0x1A0
/* SATA */
#define SATA_MAP 0x90
#define SATA_MODE_IDE 0x00
#define SATA_MODE_AHCI 0x01
/* RCBA registers */
#define RCBA 0xF0
#define DEFAULT_RCBA 0xFEA00000
#define RCBA_RPC 0x0224 /* 32 bit */
#define RCBA_TCTL 0x3000 /* 8 bit */
#define RCBA_D31IP 0x3100 /* 32 bit */
#define RCBA_D30IP 0x3104 /* 32 bit */
#define RCBA_D29IP 0x3108 /* 32 bit */
#define RCBA_D28IP 0x310C /* 32 bit */
#define RCBA_D31IR 0x3140 /* 16 bit */
#define RCBA_D30IR 0x3142 /* 16 bit */
#define RCBA_D29IR 0x3144 /* 16 bit */
#define RCBA_D28IR 0x3146 /* 16 bit */
#define RCBA_RTC 0x3400 /* 32 bit */
#define RCBA_HPTC 0x3404 /* 32 bit */
#define RCBA_GCS 0x3410 /* 32 bit */
#define RCBA_BUC 0x3414 /* 8 bit */
#define RCBA_FD 0x3418 /* 32 bit */
#define RCBA_PRC 0x341C /* 32 bit */
static inline void activate_spd_rom(const struct mem_controller *ctrl)
{
/* nothing to do */
}
static inline int spd_read_byte(u16 device, u8 address)
{
return smbus_read_byte(device, address);
}
#include "northbridge/intel/i3100/raminit.h"
#include "cpu/x86/mtrr/earlymtrr.c"
#include "northbridge/intel/i3100/memory_initialized.c"
#include "northbridge/intel/i3100/raminit.c"
#include "lib/generic_sdram.c"
#include "northbridge/intel/i3100/reset_test.c"
#include "debug.c"
#if CONFIG_USE_FALLBACK_IMAGE == 1
#include "southbridge/intel/i3100/cmos_failover.c"
#endif
void early_config(void) {
device_t dev;
u32 gcs, rpc, fd;
/* Enable RCBA */
pci_write_config32(PCI_DEV(0, 0x1F, 0), RCBA, DEFAULT_RCBA | 1);
/* Disable watchdog */
gcs = readl(DEFAULT_RCBA + RCBA_GCS);
gcs |= (1 << 5); /* No reset */
writel(gcs, DEFAULT_RCBA + RCBA_GCS);
/* Configure PCIe port B as 4x */
rpc = readl(DEFAULT_RCBA + RCBA_RPC);
rpc |= (3 << 0);
writel(rpc, DEFAULT_RCBA + RCBA_RPC);
/* Disable Modem, Audio, PCIe ports 2/3/4 */
fd = readl(DEFAULT_RCBA + RCBA_FD);
fd |= (1 << 19) | (1 << 18) | (1 << 17) | (1 << 6) | (1 << 5);
writel(fd, DEFAULT_RCBA + RCBA_FD);
/* Enable HPET */
writel((1 << 7), DEFAULT_RCBA + RCBA_HPTC);
/* Improve interrupt routing
* D31:F2 SATA INTB# -> PIRQD
* D31:F3 SMBUS INTB# -> PIRQD
* D31:F4 CHAP INTD# -> PIRQA
* D29:F0 USB1#1 INTA# -> PIRQH
* D29:F1 USB1#2 INTB# -> PIRQD
* D29:F7 USB2 INTA# -> PIRQH
* D28:F0 PCIe Port 1 INTA# -> PIRQE
*/
writew(0x0230, DEFAULT_RCBA + RCBA_D31IR);
writew(0x3210, DEFAULT_RCBA + RCBA_D30IR);
writew(0x3237, DEFAULT_RCBA + RCBA_D29IR);
writew(0x3214, DEFAULT_RCBA + RCBA_D28IR);
/* Setup sata mode */
pci_write_config8(PCI_DEV(0, 0x1F, 2), SATA_MAP, (SATA_MODE_AHCI << 6) | (0 << 0));
}
void real_main(unsigned long bist)
{
/* int boot_mode = 0; */
static const struct mem_controller mch[] = {
{
.node_id = 0,
.f0 = PCI_DEV(0, 0x00, 0),
.f1 = PCI_DEV(0, 0x00, 1),
.f2 = PCI_DEV(0, 0x00, 2),
.f3 = PCI_DEV(0, 0x00, 3),
.channel0 = { (0xa<<3)|3, (0xa<<3)|2, (0xa<<3)|1, (0xa<<3)|0 },
.channel1 = { (0xa<<3)|7, (0xa<<3)|6, (0xa<<3)|5, (0xa<<3)|4 },
}
};
if (bist == 0) {
enable_lapic();
}
/* Setup the console */
i3100_enable_superio();
i3100_enable_serial(0x4E, I3100_SP1, CONFIG_TTYS0_BASE);
uart_init();
console_init();
/* Halt if there was a built in self test failure */
report_bist_failure(bist);
/* Perform early board specific init */
early_config();
/* Prevent the TCO timer from rebooting us */
i3100_halt_tco_timer();
/* Enable SPD ROMs and DDR-II DRAM */
enable_smbus();
/* Enable SpeedStep and automatic thermal throttling */
{
msr_t msr;
u16 perf;
msr = rdmsr(IA32_MISC_ENABLES);
msr.lo |= (1 << 3) | (1 << 16);
wrmsr(IA32_MISC_ENABLES, msr);
/* Set CPU frequency/voltage to maximum */
/* Read performance status register and keep
* bits 47:32, where BUS_RATIO_MAX and VID_MAX
* are encoded
*/
msr = rdmsr(IA32_PERF_STS);
perf = msr.hi & 0x0000ffff;
/* Write VID_MAX & BUS_RATIO_MAX to
* performance control register
*/
msr = rdmsr(IA32_PERF_CTL);
msr.lo &= 0xffff0000;
msr.lo |= perf;
wrmsr(IA32_PERF_CTL, msr);
}
/* Initialize memory */
sdram_initialize(ARRAY_SIZE(mch), mch);
}
/* Use Intel Core (not Core 2) code for CAR init, any CPU might be used. */
#include "cpu/intel/model_6ex/cache_as_ram_disable.c"
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