2 * This file is part of the coreboot project.
4 * Copyright (C) 2007-2008 coresystems GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; version 2 of
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,
22 // __ROMCC__ means: use "unsigned" for device, not a struct.
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 "superio/winbond/w83627thg/w83627thg.h"
34 #include "option_table.h"
35 #include "pc80/mc146818rtc_early.c"
37 #include "pc80/serial.c"
38 #include "arch/i386/lib/console.c"
39 #include <cpu/x86/bist.h>
41 #include "ram/ramtest.c"
42 #include "southbridge/intel/i82801gx/i82801gx_early_smbus.c"
44 #include "superio/winbond/w83627thg/w83627thg_early_serial.c"
46 #include "northbridge/intel/i945/udelay.c"
48 #if CONFIG_USE_INIT == 0
49 #include "lib/memcpy.c"
52 #define SERIAL_DEV PNP_DEV(0x2e, W83627THG_SP1)
54 #include "northbridge/intel/i945/ich7.h"
55 static void setup_ich7_gpios(void)
57 /* TODO: This is highly board specific and should be moved */
58 printk_debug(" GPIOS...");
59 /* General Registers */
60 outl(0x1f1ff7c0, DEFAULT_GPIOBASE + 0x00); /* GPIO_USE_SEL */
61 outl(0xe0e8efc3, DEFAULT_GPIOBASE + 0x04); /* GP_IO_SEL */
62 outl(0xebffeeff, DEFAULT_GPIOBASE + 0x0c); /* GP_LVL */
63 /* Output Control Registers */
64 outl(0x00000000, DEFAULT_GPIOBASE + 0x18); /* GPO_BLINK */
65 /* Input Control Registers */
66 outl(0x00002180, DEFAULT_GPIOBASE + 0x2c); /* GPI_INV */
67 outl(0x000100ff, DEFAULT_GPIOBASE + 0x30); /* GPIO_USE_SEL2 */
68 outl(0x00000030, DEFAULT_GPIOBASE + 0x34); /* GP_IO_SEL2 */
69 outl(0x00010035, DEFAULT_GPIOBASE + 0x38); /* GP_LVL */
72 #include "northbridge/intel/i945/early_init.c"
74 static inline int spd_read_byte(unsigned device, unsigned address)
76 return smbus_read_byte(device, address);
79 /* Usually system firmware turns off system memory clock signals to
80 * unused SO-DIMM slots to reduce EMI and power consumption.
81 * However, the Kontron 986LCD-M does not like unused clock signals to
82 * be disabled. If other similar mainboard occur, it would make sense
83 * to make this an entry in the sysinfo structure, and pre-initialize that
84 * structure in the mainboard's auto.c main() function. For now a
87 #define OVERRIDE_CLOCK_DISABLE 1
89 #define CHANNEL_XOR_RANDOMIZATION 1
90 #include "northbridge/intel/i945/raminit.h"
91 #include "northbridge/intel/i945/raminit.c"
92 #include "northbridge/intel/i945/reset_test.c"
93 #include "northbridge/intel/i945/errata.c"
96 static void ich7_enable_lpc(void)
99 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x64, 0xd0);
100 // Set COM1/COM2 decode range
101 pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0010);
102 // Enable COM1/COM2/KBD/SuperIO1+2
103 pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x340b);
104 // Enable HWM at 0xa00
105 pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x84, 0x00fc0a01);
107 pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x88, 0x000403e9);
109 pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x8c, 0x000402e9);
111 pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x90, 0x00000301);
115 /* This box has two superios, so enabling serial becomes slightly excessive.
116 * We disable a lot of stuff to make sure that there are no conflicts between
117 * the two. Also set up the GPIOs from the beginning. This is the "no schematic
118 * but safe anyways" method.
120 static void early_superio_config_w83627thg(void)
124 dev=PNP_DEV(0x2e, W83627THG_SP1);
125 pnp_enter_ext_func_mode(dev);
127 pnp_set_logical_device(dev);
128 pnp_set_enable(dev, 0);
129 pnp_set_iobase(dev, PNP_IDX_IO0, 0x3f8);
130 pnp_set_irq(dev, PNP_IDX_IRQ0, 4);
131 pnp_set_enable(dev, 1);
133 dev=PNP_DEV(0x2e, W83627THG_SP2);
134 pnp_set_logical_device(dev);
135 pnp_set_enable(dev, 0);
136 pnp_set_iobase(dev, PNP_IDX_IO0, 0x2f8);
137 pnp_set_irq(dev, PNP_IDX_IRQ0, 3);
138 // pnp_write_config(dev, 0xf1, 4); // IRMODE0
139 pnp_set_enable(dev, 1);
141 dev=PNP_DEV(0x2e, W83627THG_KBC);
142 pnp_set_logical_device(dev);
143 pnp_set_enable(dev, 0);
144 pnp_set_iobase(dev, PNP_IDX_IO0, 0x60);
145 pnp_set_iobase(dev, PNP_IDX_IO1, 0x64);
146 // pnp_write_config(dev, 0xf0, 0x82);
147 pnp_set_enable(dev, 1);
149 dev=PNP_DEV(0x2e, W83627THG_GAME_MIDI_GPIO1);
150 pnp_set_logical_device(dev);
151 pnp_set_enable(dev, 0);
152 pnp_write_config(dev, 0xf5, 0xff); // invert all GPIOs
153 pnp_set_enable(dev, 1);
155 dev=PNP_DEV(0x2e, W83627THG_GPIO2);
156 pnp_set_logical_device(dev);
157 pnp_set_enable(dev, 1); // Just enable it
159 dev=PNP_DEV(0x2e, W83627THG_GPIO3);
160 pnp_set_logical_device(dev);
161 pnp_set_enable(dev, 0);
162 pnp_write_config(dev, 0xf0, 0xfb); // GPIO bit 2 is output
163 pnp_write_config(dev, 0xf1, 0x00); // GPIO bit 2 is 0
164 pnp_write_config(dev, 0x30, 0x03); // Enable GPIO3+4. pnp_set_enable is not sufficient
166 dev=PNP_DEV(0x2e, W83627THG_FDC);
167 pnp_set_logical_device(dev);
168 pnp_set_enable(dev, 0);
170 dev=PNP_DEV(0x2e, W83627THG_PP);
171 pnp_set_logical_device(dev);
172 pnp_set_enable(dev, 0);
175 dev=PNP_DEV(0x2e, W83627THG_HWM);
176 pnp_set_logical_device(dev);
177 pnp_set_enable(dev, 0);
178 pnp_set_iobase(dev, PNP_IDX_IO0, 0xa00);
179 pnp_set_enable(dev, 1);
181 pnp_exit_ext_func_mode(dev);
183 dev=PNP_DEV(0x4e, W83627THG_SP1);
184 pnp_enter_ext_func_mode(dev);
186 pnp_set_logical_device(dev); // Set COM3 to sane non-conflicting values
187 pnp_set_enable(dev, 0);
188 pnp_set_iobase(dev, PNP_IDX_IO0, 0x3e8);
189 pnp_set_irq(dev, PNP_IDX_IRQ0, 11);
190 pnp_set_enable(dev, 1);
192 dev=PNP_DEV(0x4e, W83627THG_SP2);
193 pnp_set_logical_device(dev); // Set COM4 to sane non-conflicting values
194 pnp_set_enable(dev, 0);
195 pnp_set_iobase(dev, PNP_IDX_IO0, 0x2e8);
196 pnp_set_irq(dev, PNP_IDX_IRQ0, 10);
197 pnp_set_enable(dev, 1);
199 dev=PNP_DEV(0x4e, W83627THG_FDC);
200 pnp_set_logical_device(dev);
201 pnp_set_enable(dev, 0);
203 dev=PNP_DEV(0x4e, W83627THG_PP);
204 pnp_set_logical_device(dev);
205 pnp_set_enable(dev, 0);
207 dev=PNP_DEV(0x4e, W83627THG_KBC);
208 pnp_set_logical_device(dev);
209 pnp_set_enable(dev, 0);
210 pnp_set_iobase(dev, PNP_IDX_IO0, 0x00);
211 pnp_set_iobase(dev, PNP_IDX_IO1, 0x00);
213 pnp_exit_ext_func_mode(dev);
216 static void rcba_config(void)
218 /* Set up virtual channel 0 */
219 //RCBA32(0x0014) = 0x80000001;
220 //RCBA32(0x001c) = 0x03128010;
222 /* Device 1f interrupt pin register */
223 RCBA32(0x3100) = 0x00042210;
224 /* Device 1d interrupt pin register */
225 RCBA32(0x310c) = 0x00214321;
227 /* dev irq route register */
228 RCBA16(0x3140) = 0x0132;
229 RCBA16(0x3142) = 0x3241;
230 RCBA16(0x3144) = 0x0237;
231 RCBA16(0x3146) = 0x3210;
232 RCBA16(0x3148) = 0x3210;
235 RCBA8(0x31ff) = 0x03;
237 /* Enable upper 128bytes of CMOS */
238 RCBA32(0x3400) = (1 << 2);
240 /* Disable unused devices */
241 RCBA32(0x3418) = FD_PCIE6|FD_PCIE5|FD_PCIE4|FD_ACMOD|FD_ACAUD|FD_PATA;
242 RCBA32(0x3418) |= (1 << 0); // Required.
244 /* Enable PCIe Root Port Clock Gate */
245 // RCBA32(0x341c) = 0x00000001;
248 static void early_ich7_init(void)
253 // program secondary mlt XXX byte?
254 pci_write_config8(PCI_DEV(0, 0x1e, 0), 0x1b, 0x20);
256 // reset rtc power status
257 reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa4);
259 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa4, reg8);
261 // usb transient disconnect
262 reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xad);
264 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xad, reg8);
266 reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xfc);
267 reg32 |= (1 << 29) | (1 << 17);
268 pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xfc, reg32);
270 reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xdc);
271 reg32 |= (1 << 31) | (1 << 27);
272 pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xdc, reg32);
274 RCBA32(0x0088) = 0x0011d000;
275 RCBA16(0x01fc) = 0x060f;
276 RCBA32(0x01f4) = 0x86000040;
277 RCBA32(0x0214) = 0x10030549;
278 RCBA32(0x0218) = 0x00020504;
279 RCBA8(0x0220) = 0xc5;
280 reg32 = RCBA32(0x3410);
282 RCBA32(0x3410) = reg32;
283 reg32 = RCBA32(0x3430);
286 RCBA32(0x3430) = reg32;
287 RCBA32(0x3418) |= (1 << 0);
288 RCBA16(0x0200) = 0x2008;
289 RCBA8(0x2027) = 0x0d;
290 RCBA16(0x3e08) |= (1 << 7);
291 RCBA16(0x3e48) |= (1 << 7);
292 RCBA32(0x3e0e) |= (1 << 7);
293 RCBA32(0x3e4e) |= (1 << 7);
295 // next step only on ich7m b0 and later:
296 reg32 = RCBA32(0x2034);
297 reg32 &= ~(0x0f << 16);
299 RCBA32(0x2034) = reg32;
302 #if USE_FALLBACK_IMAGE == 1
303 #include "southbridge/intel/i82801gx/cmos_failover.c"
306 void real_main(unsigned long bist)
315 early_superio_config_w83627thg();
317 /* Set up the console */
321 /* Halt if there was a built in self test failure */
322 report_bist_failure(bist);
324 if (MCHBAR16(SSKPD) == 0xCAFE) {
325 printk_debug("soft reset detected.\n");
329 /* Perform some early chipset initialization required
330 * before RAM initialization can work
332 i945_early_initialization();
334 /* Enable SPD ROMs and DDR-II DRAM */
337 #if DEFAULT_CONSOLE_LOGLEVEL > 8
338 dump_spd_registers();
341 sdram_initialize(boot_mode);
343 /* Perform some initialization that must run before stage2 */
346 /* This should probably go away. Until now it is required
347 * and mainboard specific
351 /* Chipset Errata! */
354 /* Initialize the internal PCIe links before we go into stage2 */
355 i945_late_initialization();
357 #if DEFAULT_CONSOLE_LOGLEVEL > 8
358 #if defined(DEBUG_RAM_SETUP)
359 sdram_dump_mchbar_registers();
363 /* This will not work if TSEG is in place! */
364 u32 tom = pci_read_config32(PCI_DEV(0,2,0), 0x5c);
366 printk_debug("TOM: 0x%08x\n", tom);
367 ram_check(0x00000000, 0x000a0000);
368 ram_check(0x00100000, tom);
371 MCHBAR16(SSKPD) = 0xCAFE;
374 #include "cpu/intel/model_6ex/cache_as_ram_disable.c"