2 * This file is part of the coreboot project.
4 * Copyright (C) 2007-2008 coresystems GmbH
5 * Copyright (C) 2009 Thomas Jourdan <thomas.jourdan@gmail.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; version 2 of
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
27 #include <arch/romcc_io.h>
28 #include <device/pci_def.h>
29 #include <device/pnp_def.h>
30 #include <cpu/x86/lapic.h>
32 #include <pc80/mc146818rtc.h>
34 #include <console/console.h>
35 #include <cpu/x86/bist.h>
37 #include "southbridge/intel/i3100/i3100_early_smbus.c"
38 #include "southbridge/intel/i3100/i3100_early_lpc.c"
40 #include "superio/intel/i3100/i3100_early_serial.c"
41 #include "superio/smsc/smscsuperio/smscsuperio_early_serial.c"
61 #define DEVPRES_CONFIG (DEVPRES_D1F0 | DEVPRES_D2F0 | DEVPRES_D3F0)
62 #define DEVPRES1_CONFIG (DEVPRES1_D0F1 | DEVPRES1_D8F0)
64 #define IA32_PERF_STS 0x198
65 #define IA32_PERF_CTL 0x199
66 #define MSR_THERM2_CTL 0x19D
67 #define IA32_MISC_ENABLES 0x1A0
72 #define SATA_MODE_IDE 0x00
73 #define SATA_MODE_AHCI 0x01
77 #define DEFAULT_RCBA 0xFEA00000
79 #define RCBA_RPC 0x0224 /* 32 bit */
81 #define RCBA_TCTL 0x3000 /* 8 bit */
83 #define RCBA_D31IP 0x3100 /* 32 bit */
84 #define RCBA_D30IP 0x3104 /* 32 bit */
85 #define RCBA_D29IP 0x3108 /* 32 bit */
86 #define RCBA_D28IP 0x310C /* 32 bit */
87 #define RCBA_D31IR 0x3140 /* 16 bit */
88 #define RCBA_D30IR 0x3142 /* 16 bit */
89 #define RCBA_D29IR 0x3144 /* 16 bit */
90 #define RCBA_D28IR 0x3146 /* 16 bit */
92 #define RCBA_RTC 0x3400 /* 32 bit */
93 #define RCBA_HPTC 0x3404 /* 32 bit */
94 #define RCBA_GCS 0x3410 /* 32 bit */
95 #define RCBA_BUC 0x3414 /* 8 bit */
96 #define RCBA_FD 0x3418 /* 32 bit */
97 #define RCBA_PRC 0x341C /* 32 bit */
99 static inline int spd_read_byte(u16 device, u8 address)
101 return smbus_read_byte(device, address);
104 #include "northbridge/intel/i3100/raminit.h"
105 #include "cpu/x86/mtrr/earlymtrr.c"
106 #include "northbridge/intel/i3100/memory_initialized.c"
107 #include "northbridge/intel/i3100/raminit.c"
108 #include "lib/generic_sdram.c"
109 #include "northbridge/intel/i3100/reset_test.c"
112 static void early_config(void)
117 pci_write_config32(PCI_DEV(0, 0x1F, 0), RCBA, DEFAULT_RCBA | 1);
119 /* Disable watchdog */
120 gcs = read32(DEFAULT_RCBA + RCBA_GCS);
121 gcs |= (1 << 5); /* No reset */
122 write32(DEFAULT_RCBA + RCBA_GCS, gcs);
124 /* Configure PCIe port B as 4x */
125 rpc = read32(DEFAULT_RCBA + RCBA_RPC);
127 write32(DEFAULT_RCBA + RCBA_RPC, rpc);
129 /* Disable Modem, Audio, PCIe ports 2/3/4 */
130 fd = read32(DEFAULT_RCBA + RCBA_FD);
131 fd |= (1 << 19) | (1 << 18) | (1 << 17) | (1 << 6) | (1 << 5);
132 write32(DEFAULT_RCBA + RCBA_FD, fd);
135 write32(DEFAULT_RCBA + RCBA_HPTC, (1 << 7));
137 /* Improve interrupt routing
138 * D31:F2 SATA INTB# -> PIRQD
139 * D31:F3 SMBUS INTB# -> PIRQD
140 * D31:F4 CHAP INTD# -> PIRQA
141 * D29:F0 USB1#1 INTA# -> PIRQH
142 * D29:F1 USB1#2 INTB# -> PIRQD
143 * D29:F7 USB2 INTA# -> PIRQH
144 * D28:F0 PCIe Port 1 INTA# -> PIRQE
147 write16(DEFAULT_RCBA + RCBA_D31IR, 0x0230);
148 write16(DEFAULT_RCBA + RCBA_D30IR, 0x3210);
149 write16(DEFAULT_RCBA + RCBA_D29IR, 0x3237);
150 write16(DEFAULT_RCBA + RCBA_D28IR, 0x3214);
152 /* Setup sata mode */
153 pci_write_config8(PCI_DEV(0, 0x1F, 2), SATA_MAP, (SATA_MODE_AHCI << 6) | (0 << 0));
156 void main(unsigned long bist)
158 /* int boot_mode = 0; */
160 static const struct mem_controller mch[] = {
163 .f0 = PCI_DEV(0, 0x00, 0),
164 .f1 = PCI_DEV(0, 0x00, 1),
165 .f2 = PCI_DEV(0, 0x00, 2),
166 .f3 = PCI_DEV(0, 0x00, 3),
167 .channel0 = { (0xa<<3)|3, (0xa<<3)|2, (0xa<<3)|1, (0xa<<3)|0 },
168 .channel1 = { (0xa<<3)|7, (0xa<<3)|6, (0xa<<3)|5, (0xa<<3)|4 },
176 /* Setup the console */
177 i3100_enable_superio();
178 i3100_enable_serial(0x4E, I3100_SP1, CONFIG_TTYS0_BASE);
182 /* Halt if there was a built in self test failure */
183 report_bist_failure(bist);
185 /* Perform early board specific init */
188 /* Prevent the TCO timer from rebooting us */
189 i3100_halt_tco_timer();
191 /* Enable SPD ROMs and DDR-II DRAM */
194 /* Enable SpeedStep and automatic thermal throttling */
199 msr = rdmsr(IA32_MISC_ENABLES);
200 msr.lo |= (1 << 3) | (1 << 16);
201 wrmsr(IA32_MISC_ENABLES, msr);
203 /* Set CPU frequency/voltage to maximum */
205 /* Read performance status register and keep
206 * bits 47:32, where BUS_RATIO_MAX and VID_MAX
209 msr = rdmsr(IA32_PERF_STS);
210 perf = msr.hi & 0x0000ffff;
212 /* Write VID_MAX & BUS_RATIO_MAX to
213 * performance control register
215 msr = rdmsr(IA32_PERF_CTL);
216 msr.lo &= 0xffff0000;
218 wrmsr(IA32_PERF_CTL, msr);
221 /* Initialize memory */
222 sdram_initialize(ARRAY_SIZE(mch), mch);