2 * This file is part of the coreboot project.
4 * Copyright (C) 2009 One Laptop per Child, Association, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <device/pci_def.h>
26 #include <device/pci_ids.h>
28 #include <device/pnp_def.h>
29 #include <arch/romcc_io.h>
31 #include "pc80/serial.c"
32 #include "console/console.c"
33 #include "lib/ramtest.c"
34 #include "northbridge/via/vx800/vx800.h"
35 #include "cpu/x86/mtrr/earlymtrr.c"
36 #include "cpu/x86/bist.h"
37 #include "pc80/udelay_io.c"
38 #include "lib/delay.c"
39 #include "lib/memcpy.c"
40 #include "cpu/x86/lapic/boot_cpu.c"
42 #include "driving_clk_phase_data.c"
44 #include "northbridge/via/vx800/raminit.h"
45 #include "northbridge/via/vx800/raminit.c"
48 static int acpi_is_wakeup_early_via_vx800(void)
53 print_debug("In acpi_is_wakeup_early_via_vx800\n");
54 /* Power management controller */
55 dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_VIA,
56 PCI_DEVICE_ID_VIA_VX855_LPC), 0);
58 if (dev == PCI_DEV_INVALID)
59 die("Power management controller not found\n");
61 /* Set ACPI base address to I/O VX800_ACPI_IO_BASE. */
62 pci_write_config16(dev, 0x88, VX800_ACPI_IO_BASE | 0x1);
64 /* Enable ACPI accessm RTC signal gated with PSON. */
65 pci_write_config8(dev, 0x81, 0x84);
67 tmp = inw(VX800_ACPI_IO_BASE + 0x04);
68 result = ((tmp & (7 << 10)) >> 10) == 1 ? 3 : 0;
69 print_debug(" boot_mode=");
70 print_debug_hex16(result);
75 static inline int spd_read_byte(unsigned device, unsigned address)
77 return smbus_read_byte(device, address);
81 static void enable_mainboard_devices(void)
86 print_debug("In enable_mainboard_devices \n");
89 Enable P2P Bridge Header for External PCI BUS.
91 dev = pci_locate_device(PCI_ID(0x1106, 0xa353), 0);
92 pci_write_config8(dev, 0x4f, 0x41);
95 static void enable_shadow_ram(void)
98 pci_write_config8(PCI_DEV(0, 0, 3), 0x80, 0xff);
99 /* 0xf0000-0xfffff - ACPI tables */
100 shadowreg = pci_read_config8(PCI_DEV(0, 0, 3), 0x83);
102 pci_write_config8(PCI_DEV(0, 0, 3), 0x83, shadowreg);
103 /* 0xe0000-0xeffff - elfload? */
105 pci_write_config8(PCI_DEV(0, 0, 3), 0x82, 0xff);
111 this table contains the value needed to be set before begin to init dram.
112 Note: REV_Bx should be cared when porting a new board!!!!! */
113 static const struct VIA_PCI_REG_INIT_TABLE mNbStage1InitTbl[] = {
115 0x00, 0xFF, NB_APIC_REG(0x61), 0xFF, 0x0E, // Set Exxxxxxx as pcie mmio config range
116 0x00, 0xFF, NB_APIC_REG(0x60), 0xF4, 0x0B, // Support extended cfg address of pcie
117 //0x00, 0xFF, NB_APIC_REG(0x42), 0xF9, 0x02, // APIC Interrupt((BT_INTR)) Control
118 // Set ROMSIP value by software
120 /*0x00, 0xFF, NB_HOST_REG(0x70), 0x77, 0x33, // 2x Host Adr Strobe/Pad Pullup Driving = 3
121 0x00, 0xFF, NB_HOST_REG(0x71), 0x77, 0x33, // 2x Host Adr Strobe/Pad Pulldown Driving = 3
122 0x00, 0xFF, NB_HOST_REG(0x72), 0x77, 0x33, // 4x Host Dat Strobe/Pad Pullup Driving = 3
123 0x00, 0xFF, NB_HOST_REG(0x73), 0x77, 0x33, // 4x Host Dat Strobe/Pad Pulldown Driving = 3
124 0x00, 0xFF, NB_HOST_REG(0x74), 0xFF, 0x21, // Memory I/F timing ctrl
125 0x00, 0xFF, NB_HOST_REG(0x74), 0xFF, 0xE1, // Memory I/F timing ctrl
126 0x00, 0xFF, NB_HOST_REG(0x75), 0xFF, 0x18, // AGTL+ I/O Circuit
127 0x00, 0xFF, NB_HOST_REG(0x76), 0xFB, 0x0C, // AGTL+ Compensation Status
128 0x00, 0xFF, NB_HOST_REG(0x78), 0xFF, 0x33, // 2X AGTL+ Auto Compensation Offset
129 0x00, 0xFF, NB_HOST_REG(0x79), 0xFF, 0x33, // 4X AGTL+ Auto Compensation Offset
130 0x00, 0xFF, NB_HOST_REG(0x7A), 0x3F, 0x72, // AGTL Compensation Status
131 0x00, 0xFF, NB_HOST_REG(0x7A), 0x3F, 0x77, // AGTL Compensation Status
132 0x00, 0xFF, NB_HOST_REG(0x7B), 0xFF, 0x44, // Input Host Address / Host Strobe Delay Control for HA Group
133 0x00, 0xFF, NB_HOST_REG(0x7B), 0xFF, 0x22, // Input Host Address / Host Strobe Delay Control for HA Group
134 0x00, 0xFF, NB_HOST_REG(0x7C), 0xFF, 0x00, // Output Delay Control of PAD for HA Group
135 0x00, 0xFF, NB_HOST_REG(0x7D), 0xFF, 0xAA, // Host Address / Address Clock Output Delay Control (Only for P4 Bus)
136 0x00, 0xFF, NB_HOST_REG(0x7E), 0xFF, 0x10, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus)
137 0x00, 0xFF, NB_HOST_REG(0x7E), 0xFF, 0x40, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus)
138 0x00, 0xFF, NB_HOST_REG(0x7F), 0xFF, 0x10, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus)
139 0x00, 0xFF, NB_HOST_REG(0x7F), 0xFF, 0x40, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus)
140 0x00, 0xFF, NB_HOST_REG(0x80), 0x3F, 0x44, // Host Data Receiving Strobe Delay Ctrl 1
141 0x00, 0xFF, NB_HOST_REG(0x81), 0xFF, 0x44, // Host Data Receiving Strobe Delay Ctrl 2
142 0x00, 0xFF, NB_HOST_REG(0x82), 0xFF, 0x00, // Output Delay of PAD for HDSTB
143 0x00, 0xFF, NB_HOST_REG(0x83), 0xFF, 0x00, // Output Delay of PAD for HD
144 0x00, 0xFF, NB_HOST_REG(0x84), 0xFF, 0x44, // Host Data / Strobe CKG Control (Group 0)
145 0x00, 0xFF, NB_HOST_REG(0x85), 0xFF, 0x44, // Host Data / Strobe CKG Control (Group 1)
146 0x00, 0xFF, NB_HOST_REG(0x86), 0xFF, 0x44, // Host Data / Strobe CKG Control (Group 2)
147 0x00, 0xFF, NB_HOST_REG(0x87), 0xFF, 0x44, // Host Data / Strobe CKG Control (Group 3) */
150 // CPU Host Bus Control
151 0x00, 0xFF, NB_HOST_REG(0x50), 0x1F, 0x08, // Request phase ctrl: Dynamic Defer Snoop Stall Count = 8
152 //0x00, 0xFF, NB_HOST_REG(0x51), 0xFF, 0x7F, // CPU I/F Ctrl-1: Disable Fast DRDY and RAW
153 0x00, 0xFF, NB_HOST_REG(0x51), 0xFF, 0x7C, // CPU I/F Ctrl-1: Disable Fast DRDY and RAW
154 0x00, 0xFF, NB_HOST_REG(0x52), 0xCB, 0xCB, // CPU I/F Ctrl-2: Enable all for performance
155 //0x00, 0xFF, NB_HOST_REG(0x53), 0xFF, 0x88, // Arbitration: Host/Master Occupancy timer = 8*4 HCLK
156 0x00, 0xFF, NB_HOST_REG(0x53), 0xFF, 0x44, // Arbitration: Host/Master Occupancy timer = 4*4 HCLK
157 0x00, 0xFF, NB_HOST_REG(0x54), 0x1E, 0x1C, // Misc Ctrl: Enable 8QW burst Mem Access
158 //0x00, 0xFF, NB_HOST_REG(0x55), 0x06, 0x06, // Miscellaneous Control 2
159 0x00, 0xFF, NB_HOST_REG(0x55), 0x06, 0x04, // Miscellaneous Control 2
160 0x00, 0xFF, NB_HOST_REG(0x56), 0xF7, 0x63, // Write Policy 1
161 //0x00, 0xFF, NB_HOST_REG(0x59), 0x3D, 0x01, // CPU Miscellaneous Control 1, enable Lowest-Priority IPL
162 //0x00, 0xFF, NB_HOST_REG(0x5c), 0xFF, 0x00, // CPU Miscellaneous Control 2
163 0x00, 0xFF, NB_HOST_REG(0x5D), 0xFF, 0xA2, // Write Policy
164 0x00, 0xFF, NB_HOST_REG(0x5E), 0xFF, 0x88, // Bandwidth Timer
165 0x00, 0xFF, NB_HOST_REG(0x5F), 0x46, 0x46, // CPU Misc Ctrl
166 // 0x00, 0xFF, NB_HOST_REG(0x90), 0xFF, 0x0B, // CPU Miscellaneous Control 3
167 //0x00, 0xFF, NB_HOST_REG(0x96), 0x0B, 0x0B, // CPU Miscellaneous Control 2
168 0x00, 0xFF, NB_HOST_REG(0x96), 0x0B, 0x0A, // CPU Miscellaneous Control 2
169 0x00, 0xFF, NB_HOST_REG(0x98), 0xC1, 0x41, // CPU Miscellaneous Control 3
170 0x00, 0xFF, NB_HOST_REG(0x99), 0x0E, 0x06, // CPU Miscellaneous Control 4
173 // Set APIC and SMRAM
174 0x00, 0xFF, NB_HOST_REG(0x97), 0xFF, 0x00, // APIC Related Control
175 0x00, 0xFF, NB_DRAMC_REG(0x86), 0xD6, 0x29, // SMM and APIC Decoding: enable APIC, MSI and SMRAM A-Seg
176 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // End of the table
179 #define USE_VCP 1 //0 means use DVP
183 #define gCom1Base 0x3f8
184 #define gCom2Base 0x2f8
190 //enable NB multiple function control
191 ByteVal = pci_read_config8(PCI_DEV(0, 0, 0), 0x4f);
192 ByteVal = ByteVal | 0x01;
193 pci_write_config8(PCI_DEV(0, 0, 0), 0x4f, ByteVal);
196 ByteVal = pci_read_config8(PCI_DEV(0, 0, 3), 0xA1);
197 ByteVal = ByteVal | 0x80;
198 pci_write_config8(PCI_DEV(0, 0, 3), 0xA1, ByteVal);
200 ByteVal = pci_read_config8(PCI_DEV(0, 0, 3), 0xA7);
201 ByteVal = ByteVal | 0x08;
202 pci_write_config8(PCI_DEV(0, 0, 3), 0xA7, ByteVal);
205 ByteVal = pci_read_config8(PCI_DEV(0, 1, 0), 0x4);
206 ByteVal = ByteVal | 0x07;
207 pci_write_config8(PCI_DEV(0, 1, 0), 0x4, ByteVal);
209 //Turn on Graphic chip IO port port access
210 ByteVal = inb(0x3C3);
211 ByteVal = ByteVal | 0x01;
212 outb(ByteVal, 0x3C3);
214 //Turn off Graphic chip Register protection
216 ByteVal = inb(0x3C5);
217 ByteVal = ByteVal | 0x01;
218 outb(ByteVal, 0x3C5);
220 //south module pad share enable 0x3C5.78[7]
222 ByteVal = inb(0x3C5);
223 ByteVal = ByteVal | 0x80;
224 outb(ByteVal, 0x3C5);
226 //enable UART Function multiplex with DVP or VCP pad D17F0Rx46[7,6]
227 ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0x46);
230 ByteVal = (ByteVal & 0x3F) | 0x40;
233 ByteVal = (ByteVal & 0x3F) | 0xC0;
234 pci_write_config8(PCI_DEV(0, 17, 0), 0x46, ByteVal);
238 //enable embeded com1 and com2 D17F0RxB0[5,4]
239 ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0xB0);
240 ByteVal = ByteVal & 0xcf;
243 ByteVal = ByteVal | 0x10;
245 ByteVal = ByteVal | 0x20;
246 pci_write_config8(PCI_DEV(0, 17, 0), 0xB0, ByteVal);
255 //set embeded com1 IO base = 0x3E8
259 ByteVal = (u8) ((gCom1Base >> 3) | 0x80);
260 pci_write_config8(PCI_DEV(0, 17, 0), 0xB4, ByteVal);
261 ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0xb2);
262 ByteVal = (ByteVal & 0xf0) | 0x04;
263 pci_write_config8(PCI_DEV(0, 17, 0), 0xB2, ByteVal);
265 //set embeded com2 IO base = 0x2E8
269 ByteVal = (u8) ((gCom2Base >> 3) | 0x80);
270 pci_write_config8(PCI_DEV(0, 17, 0), 0xB5, ByteVal);
271 ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0xb2);
272 ByteVal = (ByteVal & 0x0f) | 0x30;
273 pci_write_config8(PCI_DEV(0, 17, 0), 0xB2, ByteVal);
275 //no port 80 biger then 0x10
278 ByteVal = inb(ComBase + 3);
279 outb(ByteVal & 0x7F, ComBase + 3);
280 outb(0x00, ComBase + 1);
283 ByteVal = inb(ComBase + 3);
284 outb(ByteVal | 0x80, ComBase + 3);
286 outb(0x00, ComBase + 1);
289 ByteVal = inb(ComBase + 3);
290 outb(ByteVal & 0x3F, ComBase + 3);
291 outb(0x03, ComBase + 3);
292 outb(0x00, ComBase + 2);
293 outb(0x00, ComBase + 4);
295 //SOutput("Embeded com output\n");
299 /* cache_as_ram.inc jump to here
301 void main(unsigned long bist)
303 unsigned cpu_reset = 0;
308 /* Enable multifunction for northbridge. */
309 pci_write_config8(PCI_DEV(0, 0, 0), 0x4f, 0x01);
311 //enable_vx800_serial();
344 pci_write_config16(PCI_DEV(0, 0xf, 0), 0xBA,
345 PCI_DEVICE_ID_VIA_VX855_IDE);
346 pci_write_config16(PCI_DEV(0, 0xf, 0), 0xBE,
347 PCI_DEVICE_ID_VIA_VX855_IDE);
348 pci_write_config16(PCI_DEV(0, 0x11, 0), 0xA0, PCI_VENDOR_ID_VIA);
349 pci_write_config16(PCI_DEV(0, 0x11, 0), 0xA2,
350 PCI_DEVICE_ID_VIA_VX855_LPC);
351 Data8 = pci_read_config8(PCI_DEV(0, 0x11, 0), 0x79);
354 pci_write_config8(PCI_DEV(0, 0x11, 0), 0x79, Data8);
355 pci_write_config16(PCI_DEV(0, 0x11, 0), 0x72,
356 PCI_DEVICE_ID_VIA_VX855_LPC);
358 console_init(); //there are to function defination of console_init(), while the src/archi386/lib is the right one
360 /* decide if this is a s3 wakeup or a normal boot */
361 boot_mode = acpi_is_wakeup_early_via_vx800();
362 /*add this, to transfer "cpu restart" to "cold boot"
363 When this boot is not a S3 resume, and PCI registers had been written,
364 then this must be a cpu restart(result of os reboot cmd). so we need a real "cold boot". */
366 && (pci_read_config8(PCI_DEV(0, 0, 3), 0x80) != 0)) {
370 /*x86 cold boot I/O cmd */
372 //smbus_fixup(&ctrl);// this fix does help vx800!, but vx855 no need this
375 // CAR need mtrr untill mem is ok, so i disable this early_mtrr_init();
376 //print_debug("doing early_mtrr\n");
380 /* Halt if there was a built-in self test failure. */
381 report_bist_failure(bist);
383 print_debug("Enabling mainboard devices\n");
384 enable_mainboard_devices();
388 /* Get NB Chip revision from D0F4RxF6, revision will be used in via_pci_inittable */
389 device = PCI_DEV(0, 0, 4);
390 Data = pci_read_config8(device, 0xf6);
391 print_debug("NB chip revision =");
392 print_debug_hex8(Data);
394 /* make NB ready before draminit */
395 via_pci_inittable(Data, mNbStage1InitTbl);
398 When resume from s3, draminit is skiped, so need to recovery any PCI register related to draminit.
399 and d0f3 didnt lost its Power during whole s3 time, so any register not belongs to d0f3 need to be recoveried . */
401 if (boot_mode == 3) {
403 u8 ramregs[] = { 0x43, 0x42, 0x41, 0x40 };
404 DRAM_SYS_ATTR DramAttr;
406 print_debug("This is a S3 wakeup\n");
408 memset(&DramAttr, 0, sizeof(DRAM_SYS_ATTR));
409 /*Step1 DRAM Detection; DDR1 or DDR2; Get SPD Data; Rank Presence;64 or 128bit; Unbuffered or registered; 1T or 2T */
410 DRAMDetect(&DramAttr);
412 /*begin to get ram size, 43,42 41 40 contains the end address of last rank in ddr2-slot */
413 device = PCI_DEV(0, 0, 3);
414 for (rambits = 0, i = 0; i < ARRAY_SIZE(ramregs); i++) {
415 rambits = pci_read_config8(device, ramregs[i]);
420 DRAMDRDYSetting(&DramAttr);
422 Data = 0x80; // this value is same with dev_init.c
423 pci_write_config8(PCI_DEV(0, 0, 4), 0xa3, Data);
424 pci_write_config8(PCI_DEV(0, 17, 7), 0x60, rambits << 2);
425 Data = pci_read_config8(MEMCTRL, 0x88);
426 pci_write_config8(PCI_DEV(0, 17, 7), 0xE5, Data);
428 DRAMRegFinalValue(&DramAttr); // I just copy this function from draminit to here!
429 SetUMARam(); // I just copy this function from draminit to here!
430 print_debug("Resume from S3, RAM init was ignored\n");
433 ram_check(0, 640 * 1024);
437 /*this line is the same with cx700 port . */
441 For coreboot most time of S3 resume is the same as normal boot, so some memory area under 1M become dirty,
442 so before this happen, I need to backup the content of mem to top-mem.
443 I will reserve the 1M top-men in LBIO table in coreboot_table.c and recovery the content of 1M-mem in wakeup.c
445 #if PAYLOAD_IS_SEABIOS==1 //
446 if (boot_mode == 3) {
447 /* some idea of Libo.Feng at amd.com in http://www.coreboot.org/pipermail/coreboot/2008-December/043111.html
448 I want move the 1M data, I have to set some MTRRs myself. */
449 /* seting mtrr before back memoy save s3 resume time about 0.14 seconds */
450 /*because CAR stack use cache, and here to use cache , must be careful,
451 1 during these mtrr code, must no function call, (after this mtrr, I think it should be ok to use function)
452 2 before stack switch, no use variable that have value set before this
453 3 due to 2, take care of "cpu_reset", I directlly set it to ZERO.
455 u32 memtop = *(u32 *) WAKE_MEM_INFO;
456 u32 memtop1 = *(u32 *) WAKE_MEM_INFO - 0x100000;
457 u32 memtop2 = *(u32 *) WAKE_MEM_INFO - 0x200000;
459 *(u32 *) WAKE_MEM_INFO - 64 * 1024 - 0x100000;
461 *(u32 *) WAKE_MEM_INFO - 64 * 1024 - 0x100000 +
463 /* __asm__ volatile (
464 "movl $0x204, %%ecx\n\t"
465 "xorl %%edx, %%edx\n\t"
467 "orl $(0 | 6), %%eax\n\t"
470 "movl $0x205, %%ecx\n\t"
471 "xorl %%edx, %%edx\n\t"
472 "movl $0x100000,%%eax\n\t"
475 "orl $(0 | 0x800), %%eax\n\t"
480 "movl $0x206, %%ecx\n\t"
481 "xorl %%edx, %%edx\n\t"
483 "orl $(0 | 6), %%eax\n\t"
486 "movl $0x207, %%ecx\n\t"
487 "xorl %%edx, %%edx\n\t"
488 "movl $0x100000,%%eax\n\t"
491 "orl $(0 | 0x800), %%eax\n\t"
496 "movl $0x208, %ecx\n\t"
497 "xorl %edx, %edx\n\t"
499 "orl $(0 | 6), %eax\n\t"
502 "movl $0x209, %ecx\n\t"
503 "xorl %edx, %edx\n\t"
504 "movl $0x100000,%eax\n\t"
507 "orl $(0 | 0x800), %eax\n\t"
511 // WAKE_MEM_INFO is inited in get_set_top_available_mem in tables.c
512 // these two memcpy not not be enabled if set the MTRR around this two lines.
516 "movl $0xa0000, %%ecx\n\t"
522 "movl $0xe0000, %%esi\n\t"
524 "movl $0x20000, %%ecx\n\t"
529 print_debug("copy memory to high memory to protect s3 wakeup vector code \n"); //this can have function call, because no variable used before this
530 memcpy((unsigned char *) ((*(u32 *) WAKE_MEM_INFO) -
531 64 * 1024 - 0x100000),
532 (unsigned char *) 0, 0xa0000);
533 memcpy((unsigned char *) ((*(u32 *) WAKE_MEM_INFO) -
534 64 * 1024 - 0x100000 + 0xe0000),
535 (unsigned char *) 0xe0000, 0x20000);
537 /* restore the MTRR previously modified. */
538 /* __asm__ volatile (
540 "xorl %edx, %edx\n\t"
541 "xorl %eax, %eax\n\t"
542 "movl $0x204, %ecx\n\t"
544 "movl $0x205, %ecx\n\t"
546 "movl $0x206, %ecx\n\t"
548 "movl $0x207, %ecx\n\t"
550 "movl $0x208, %ecx\n\t"
552 "movl $0x209, %ecx\n\t"