src/mainboard/kontron/986lcd-m/auto.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007-2008 coresystems GmbH
   5  *
   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
   9  * the License.
  10  *
  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.
  15  *
  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,
  19  * MA 02110-1301 USA
  20  */
  21
  22 // __ROMCC__ means: use "unsigned" for device, not a struct.
  23 #define __ROMCC__
  24
  25 #include <stdint.h>
  26 #include <arch/io.h>
  27 #include <arch/romcc_io.h>
  28 #include <device/pci_def.h>
  29 #include <device/pnp_def.h>
  30 #include <cpu/x86/lapic.h>
  31
  32 #include "superio/winbond/w83627thg/w83627thg.h"
  33
  34 #include "option_table.h"
  35 #include "pc80/mc146818rtc_early.c"
  36
  37 #include "pc80/serial.c"
  38 #include "arch/i386/lib/console.c"
  39 #include <cpu/x86/bist.h>
  40
  41 #include "ram/ramtest.c"
  42 #include "southbridge/intel/i82801gx/i82801gx_early_smbus.c"
  43 #include "reset.c"
  44 #include "superio/winbond/w83627thg/w83627thg_early_serial.c"
  45
  46 #include "northbridge/intel/i945/udelay.c"
  47
  48 #if CONFIG_USE_INIT == 0
  49 #include "lib/memcpy.c"
  50 #endif
  51
  52 #define SERIAL_DEV PNP_DEV(0x2e, W83627THG_SP1)
  53
  54 #include "northbridge/intel/i945/ich7.h"
  55 static void setup_ich7_gpios(void)
  56 {
  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(0x000000ff, DEFAULT_GPIOBASE + 0x30);      /* GPIO_USE_SEL2 */
  68         outl(0x00000030, DEFAULT_GPIOBASE + 0x34);      /* GP_IO_SEL2 */
  69         outl(0x00010035, DEFAULT_GPIOBASE + 0x38);      /* GP_LVL */
  70 }
  71
  72 #include "northbridge/intel/i945/early_init.c"
  73
  74 static inline int spd_read_byte(unsigned device, unsigned address)
  75 {
  76         return smbus_read_byte(device, address);
  77 }
  78
  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
  85  * #define will do.
  86  */
  87 #define OVERRIDE_CLOCK_DISABLE 1
  88 #include "northbridge/intel/i945/raminit.h"
  89 #include "northbridge/intel/i945/raminit.c"
  90 #include "northbridge/intel/i945/reset_test.c"
  91 #include "northbridge/intel/i945/errata.c"
  92 #include "debug.c"
  93
  94 static void ich7_enable_lpc(void)
  95 {
  96         // Enable Serial IRQ
  97         pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x64, 0xd0);
  98         // Set COM1/COM2 decode range
  99         pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0010);
 100         // Enable COM1/COM2/KBD/SuperIO1+2
 101         pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x340b);
 102         // Enable HWM at 0xa00
 103         pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x84, 0x0a01);
 104         // COM3 decode
 105         pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x88, 0x000403e9);
 106         // COM4 decode
 107         pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x8c, 0x000402e9);
 108         // io 0x300 decode
 109         pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x90, 0x00000301);
 110 }
 111
 112
 113 /* This box has two superios, so enabling serial becomes slightly excessive.
 114  * We disable a lot of stuff to make sure that there are no conflicts between
 115  * the two. Also set up the GPIOs from the beginning. This is the "no schematic
 116  * but safe anyways" method.
 117  */
 118 static void early_superio_config_w83627thg(void)
 119 {
 120         device_t dev;
 121
 122         dev=PNP_DEV(0x2e, W83627THG_SP1);
 123         pnp_enter_ext_func_mode(dev);
 124
 125         pnp_set_logical_device(dev);
 126         pnp_set_enable(dev, 0);
 127         pnp_set_iobase(dev, PNP_IDX_IO0, 0x3f8);
 128         pnp_set_irq(dev, PNP_IDX_IRQ0, 4);
 129         pnp_set_enable(dev, 1);
 130
 131         dev=PNP_DEV(0x2e, W83627THG_SP2);
 132         pnp_set_logical_device(dev);
 133         pnp_set_enable(dev, 0);
 134         pnp_set_iobase(dev, PNP_IDX_IO0, 0x2f8);
 135         pnp_set_irq(dev, PNP_IDX_IRQ0, 3);
 136         // pnp_write_config(dev, 0xf1, 4); // IRMODE0
 137         pnp_set_enable(dev, 1);
 138
 139         dev=PNP_DEV(0x2e, W83627THG_KBC);
 140         pnp_set_logical_device(dev);
 141         pnp_set_enable(dev, 0);
 142         pnp_set_iobase(dev, PNP_IDX_IO0, 0x60);
 143         pnp_set_iobase(dev, PNP_IDX_IO1, 0x64);
 144         // pnp_write_config(dev, 0xf0, 0x82);
 145         pnp_set_enable(dev, 1);
 146
 147         dev=PNP_DEV(0x2e, W83627THG_GAME_MIDI_GPIO1);
 148         pnp_set_logical_device(dev);
 149         pnp_set_enable(dev, 0);
 150         pnp_write_config(dev, 0xf5, 0xff); // invert all GPIOs
 151         pnp_set_enable(dev, 1);
 152
 153         dev=PNP_DEV(0x2e, W83627THG_GPIO2);
 154         pnp_set_logical_device(dev);
 155         pnp_set_enable(dev, 1); // Just enable it
 156
 157         dev=PNP_DEV(0x2e, W83627THG_GPIO3);
 158         pnp_set_logical_device(dev);
 159         pnp_set_enable(dev, 0);
 160         pnp_write_config(dev, 0xf0, 0xfb); // GPIO bit 2 is output
 161         pnp_write_config(dev, 0xf1, 0x00); // GPIO bit 2 is 0
 162         pnp_write_config(dev, 0x30, 0x03); // Enable GPIO3+4. pnp_set_enable is not sufficient
 163
 164         dev=PNP_DEV(0x2e, W83627THG_FDC);
 165         pnp_set_logical_device(dev);
 166         pnp_set_enable(dev, 0);
 167
 168         dev=PNP_DEV(0x2e, W83627THG_PP);
 169         pnp_set_logical_device(dev);
 170         pnp_set_enable(dev, 0);
 171
 172         pnp_exit_ext_func_mode(dev);
 173
 174         dev=PNP_DEV(0x4e, W83627THG_SP1);
 175         pnp_enter_ext_func_mode(dev);
 176
 177         pnp_set_logical_device(dev); // Set COM3 to sane non-conflicting values
 178         pnp_set_enable(dev, 0);
 179         pnp_set_iobase(dev, PNP_IDX_IO0, 0x3e8);
 180         pnp_set_irq(dev, PNP_IDX_IRQ0, 11);
 181         pnp_set_enable(dev, 1);
 182
 183         dev=PNP_DEV(0x4e, W83627THG_SP2);
 184         pnp_set_logical_device(dev); // Set COM4 to sane non-conflicting values
 185         pnp_set_enable(dev, 0);
 186         pnp_set_iobase(dev, PNP_IDX_IO0, 0x2e8);
 187         pnp_set_irq(dev, PNP_IDX_IRQ0, 10);
 188         pnp_set_enable(dev, 1);
 189
 190         dev=PNP_DEV(0x4e, W83627THG_FDC);
 191         pnp_set_logical_device(dev);
 192         pnp_set_enable(dev, 0);
 193
 194         dev=PNP_DEV(0x4e, W83627THG_PP);
 195         pnp_set_logical_device(dev);
 196         pnp_set_enable(dev, 0);
 197
 198         dev=PNP_DEV(0x4e, W83627THG_KBC);
 199         pnp_set_logical_device(dev);
 200         pnp_set_enable(dev, 0);
 201         pnp_set_iobase(dev, PNP_IDX_IO0, 0x00);
 202         pnp_set_iobase(dev, PNP_IDX_IO1, 0x00);
 203
 204         pnp_exit_ext_func_mode(dev);
 205 }
 206
 207 static void rcba_config(void)
 208 {
 209         /* Set up virtual channel 0 */
 210         //RCBA32(0x0014) = 0x80000001;
 211         //RCBA32(0x001c) = 0x03128010;
 212
 213         /* Device 1f interrupt pin register */
 214         RCBA32(0x3100) = 0x00042210;
 215         /* Device 1d interrupt pin register */
 216         RCBA32(0x310c) = 0x00214321;
 217
 218         /* dev irq route register */
 219         RCBA16(0x3140) = 0x0132;
 220         RCBA16(0x3142) = 0x3241;
 221         RCBA16(0x3144) = 0x0237;
 222         RCBA16(0x3146) = 0x3210;
 223         RCBA16(0x3148) = 0x3210;
 224
 225         /* Enable IOAPIC */
 226         RCBA8(0x31ff) = 0x03;
 227
 228         /* Enable upper 128bytes of CMOS */
 229         RCBA32(0x3400) = (1 << 2);
 230
 231         /* Disable unused devices */
 232         RCBA32(0x3418) = 0x000e0063;
 233
 234         /* Enable PCIe Root Port Clock Gate */
 235         // RCBA32(0x341c) = 0x00000001;
 236 }
 237
 238 static void early_ich7_init(void)
 239 {
 240         uint8_t reg8;
 241         uint32_t reg32;
 242
 243         // program secondary mlt XXX byte?
 244         pci_write_config8(PCI_DEV(0, 0x1e, 0), 0x1b, 0x20);
 245
 246         // reset rtc power status
 247         reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa4);
 248         reg8 &= ~(1 << 2);
 249         pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa4, reg8);
 250
 251         // usb transient disconnect
 252         reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xad);
 253         reg8 |= (3 << 0);
 254         pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xad, reg8);
 255
 256         reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xfc);
 257         reg32 |= (1 << 29) | (1 << 17);
 258         pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xfc, reg32);
 259
 260         reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xdc);
 261         reg32 |= (1 << 31) | (1 << 27);
 262         pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xdc, reg32);
 263
 264         RCBA32(0x0088) = 0x0011d000;
 265         RCBA16(0x01fc) = 0x060f;
 266         RCBA32(0x01f4) = 0x86000040;
 267         RCBA32(0x0214) = 0x10030549;
 268         RCBA32(0x0218) = 0x00020504;
 269         RCBA8(0x0220) = 0xc5;
 270         reg32 = RCBA32(0x3410);
 271         reg32 |= (1 << 6);
 272         RCBA32(0x3410) = reg32;
 273         reg32 = RCBA32(0x3430);
 274         reg32 &= ~(3 << 0);
 275         reg32 |= (1 << 0);
 276         RCBA32(0x3430) = reg32;
 277         RCBA32(0x3418) |= (1 << 0);
 278         RCBA16(0x0200) = 0x2008;
 279         RCBA8(0x2027) = 0x0d;
 280         RCBA16(0x3e08) |= (1 << 7);
 281         RCBA16(0x3e48) |= (1 << 7);
 282         RCBA32(0x3e0e) |= (1 << 7);
 283         RCBA32(0x3e4e) |= (1 << 7);
 284
 285         // next step only on ich7m b0 and later:
 286         reg32 = RCBA32(0x2034);
 287         reg32 &= ~(0x0f << 16);
 288         reg32 |= (5 << 16);
 289         RCBA32(0x2034) = reg32;
 290 }
 291
 292 #if USE_FALLBACK_IMAGE == 1
 293 #include "southbridge/intel/i82801gx/cmos_failover.c"
 294 #endif
 295
 296 void real_main(unsigned long bist)
 297 {
 298         int boot_mode = 0;
 299
 300         if (bist == 0) {
 301                 enable_lapic();
 302         }
 303
 304         ich7_enable_lpc();
 305         early_superio_config_w83627thg();
 306
 307         /* Set up the console */
 308         uart_init();
 309         console_init();
 310
 311         /* Halt if there was a built in self test failure */
 312         report_bist_failure(bist);
 313
 314         if (MCHBAR16(SSKPD) == 0xCAFE) {
 315                 printk_debug("soft reset detected.\n");
 316                 boot_mode = 1;
 317         }
 318
 319         /* Perform some early chipset initialization required
 320          * before RAM initialization can work
 321          */
 322         i945_early_initialization();
 323
 324         /* Enable SPD ROMs and DDR-II DRAM */
 325         enable_smbus();
 326
 327 #if DEFAULT_CONSOLE_LOGLEVEL > 8
 328         dump_spd_registers();
 329 #endif
 330
 331         sdram_initialize(boot_mode);
 332
 333         /* Perform some initialization that must run before stage2 */
 334         early_ich7_init();
 335
 336         /* This should probably go away. Until now it is required
 337          * and mainboard specific
 338          */
 339         rcba_config();
 340
 341         /* Chipset Errata! */
 342         fixup_i945_errata();
 343
 344         /* Initialize the internal PCIe links before we go into stage2 */
 345         i945_late_initialization();
 346
 347 #if DEFAULT_CONSOLE_LOGLEVEL > 8
 348 #if defined(DEBUG_RAM_SETUP)
 349         sdram_dump_mchbar_registers();
 350 #endif
 351
 352         {
 353                 /* This will not work if TSEG is in place! */
 354                 u32 tom = pci_read_config32(PCI_DEV(0,2,0), 0x5c);
 355
 356                 printk_debug("TOM: 0x%08x\n", tom);
 357                 ram_check(0x00000000, 0x000a0000);
 358                 ram_check(0x00100000, tom);
 359         }
 360 #endif
 361         MCHBAR16(SSKPD) = 0xCAFE;
 362 }
 363
 364 #include "cpu/intel/model_6ex/cache_as_ram_disable.c"