Restructured all vendors' Kconfig files to no longer source the boards'
[coreboot.git] / src / mainboard / ibase / mb899 / romstage.c
1 /*
2  * This file is part of the coreboot project.
3  *
4  * Copyright (C) 2007-2010 coresystems GmbH
5  *
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; version 2 of the License.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19
20 // __PRE_RAM__ means: use "unsigned" for device, not a struct.
21
22 /* Configuration of the i945 driver */
23 #define CHIPSET_I945GM 1
24 //#define OVERRIDE_CLOCK_DISABLE 1
25 #define CHANNEL_XOR_RANDOMIZATION 1
26
27 #include <stdint.h>
28 #include <string.h>
29 #include <arch/io.h>
30 #include <arch/romcc_io.h>
31 #include <device/pci_def.h>
32 #include <device/pnp_def.h>
33 #include <cpu/x86/lapic.h>
34
35 #include "superio/winbond/w83627ehg/w83627ehg.h"
36
37 #include <pc80/mc146818rtc.h>
38
39 #include <console/console.h>
40 #include <cpu/x86/bist.h>
41
42 #if CONFIG_USBDEBUG
43 #define DBGP_DEFAULT 1
44 #include "southbridge/intel/i82801gx/i82801gx_usb_debug.c"
45 #include "pc80/usbdebug_serial.c"
46 #endif
47
48 #include "lib/ramtest.c"
49 #include "southbridge/intel/i82801gx/i82801gx_early_smbus.c"
50 #include "superio/winbond/w83627ehg/w83627ehg_early_serial.c"
51
52 #include "northbridge/intel/i945/udelay.c"
53
54 #define SERIAL_DEV PNP_DEV(0x4e, W83627EHG_SP1)
55
56 #include "southbridge/intel/i82801gx/i82801gx.h"
57 static void setup_ich7_gpios(void)
58 {
59         printk(BIOS_DEBUG, " GPIOS...");
60         /* General Registers */
61         outl(0x1f1ff7c0, DEFAULT_GPIOBASE + 0x00);      /* GPIO_USE_SEL */
62         outl(0xe0e8efc3, DEFAULT_GPIOBASE + 0x04);      /* GP_IO_SEL */
63         outl(0xebffeeff, DEFAULT_GPIOBASE + 0x0c);      /* GP_LVL */
64         /* Output Control Registers */
65         outl(0x00000000, DEFAULT_GPIOBASE + 0x18);      /* GPO_BLINK */
66         /* Input Control Registers */
67         outl(0x00002180, DEFAULT_GPIOBASE + 0x2c);      /* GPI_INV */
68         outl(0x000100ff, DEFAULT_GPIOBASE + 0x30);      /* GPIO_USE_SEL2 */
69         outl(0x00000030, DEFAULT_GPIOBASE + 0x34);      /* GP_IO_SEL2 */
70         outl(0x00010035, DEFAULT_GPIOBASE + 0x38);      /* GP_LVL */
71 }
72
73 #include "northbridge/intel/i945/early_init.c"
74
75 static inline int spd_read_byte(unsigned device, unsigned address)
76 {
77         return smbus_read_byte(device, address);
78 }
79
80 #include "northbridge/intel/i945/raminit.h"
81 #include "northbridge/intel/i945/raminit.c"
82 #include "northbridge/intel/i945/errata.c"
83 #include "northbridge/intel/i945/debug.c"
84
85 static void ich7_enable_lpc(void)
86 {
87         // Enable Serial IRQ
88         pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x64, 0xd0);
89         // Set COM1/COM2 decode range
90         pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0010);
91         // Enable COM1/COM2/KBD/SuperIO1+2
92         pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x340b);
93         // Enable HWM at 0x290
94         pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x84, 0x00fc0291);
95         // io 0x300 decode
96         pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x90, 0x00000301);
97 }
98
99 /* This box has one superio
100  * Also set up the GPIOs from the beginning. This is the "no schematic
101  * but safe anyways" method.
102  */
103 static void early_superio_config_w83627ehg(void)
104 {
105         device_t dev;
106
107         dev=PNP_DEV(0x4e, W83627EHG_SP1);
108         pnp_enter_ext_func_mode(dev);
109
110         pnp_write_config(dev, 0x24, 0xc4); // PNPCSV
111
112         pnp_write_config(dev, 0x29, 0x01); // GPIO settings
113         pnp_write_config(dev, 0x2a, 0x40); // GPIO settings should be fc but gets set to 02
114         pnp_write_config(dev, 0x2b, 0xc0); // GPIO settings?
115         pnp_write_config(dev, 0x2c, 0x03); // GPIO settings?
116         pnp_write_config(dev, 0x2d, 0x20); // GPIO settings?
117
118         dev=PNP_DEV(0x4e, W83627EHG_SP1);
119         pnp_set_logical_device(dev);
120         pnp_set_enable(dev, 0);
121         pnp_set_iobase(dev, PNP_IDX_IO0, 0x3f8);
122         pnp_set_irq(dev, PNP_IDX_IRQ0, 4);
123         pnp_set_enable(dev, 1);
124
125         dev=PNP_DEV(0x4e, W83627EHG_SP2);
126         pnp_set_logical_device(dev);
127         pnp_set_enable(dev, 0);
128         pnp_set_iobase(dev, PNP_IDX_IO0, 0x2f8);
129         pnp_set_irq(dev, PNP_IDX_IRQ0, 3);
130         // pnp_write_config(dev, 0xf1, 4); // IRMODE0
131         pnp_set_enable(dev, 1);
132
133         dev=PNP_DEV(0x4e, W83627EHG_KBC); // Keyboard
134         pnp_set_logical_device(dev);
135         pnp_set_enable(dev, 0);
136         pnp_set_iobase(dev, PNP_IDX_IO0, 0x60);
137         pnp_set_iobase(dev, PNP_IDX_IO1, 0x64);
138         //pnp_write_config(dev, 0xf0, 0x82);
139         pnp_set_enable(dev, 1);
140
141         dev=PNP_DEV(0x4e, W83627EHG_GPIO2);
142         pnp_set_logical_device(dev);
143         pnp_set_enable(dev, 1); // Just enable it
144
145         dev=PNP_DEV(0x4e, W83627EHG_GPIO3);
146         pnp_set_logical_device(dev);
147         pnp_set_enable(dev, 0);
148         pnp_write_config(dev, 0xf0, 0xfb); // GPIO bit 2 is output
149         pnp_write_config(dev, 0xf1, 0x00); // GPIO bit 2 is 0
150         pnp_write_config(dev, 0x30, 0x03); // Enable GPIO3+4. pnp_set_enable is not sufficient
151
152         dev=PNP_DEV(0x4e, W83627EHG_FDC);
153         pnp_set_logical_device(dev);
154         pnp_set_enable(dev, 0);
155
156         dev=PNP_DEV(0x4e, W83627EHG_PP);
157         pnp_set_logical_device(dev);
158         pnp_set_enable(dev, 0);
159
160         /* Enable HWM */
161         dev=PNP_DEV(0x4e, W83627EHG_HWM);
162         pnp_set_logical_device(dev);
163         pnp_set_enable(dev, 0);
164         pnp_set_iobase(dev, PNP_IDX_IO0, 0xa00);
165         pnp_set_enable(dev, 1);
166
167         pnp_exit_ext_func_mode(dev);
168 }
169
170 static void rcba_config(void)
171 {
172         /* Set up virtual channel 0 */
173         //RCBA32(0x0014) = 0x80000001;
174         //RCBA32(0x001c) = 0x03128010;
175
176         /* Device 1f interrupt pin register */
177         RCBA32(0x3100) = 0x00042210;
178         /* Device 1d interrupt pin register */
179         RCBA32(0x310c) = 0x00214321;
180
181         /* dev irq route register */
182         RCBA16(0x3140) = 0x0132;
183         RCBA16(0x3142) = 0x0146;
184         RCBA16(0x3144) = 0x0237;
185         RCBA16(0x3146) = 0x3201;
186         RCBA16(0x3148) = 0x0146;
187
188         /* Enable IOAPIC */
189         RCBA8(0x31ff) = 0x03;
190
191         /* Enable upper 128bytes of CMOS */
192         RCBA32(0x3400) = (1 << 2);
193
194         /* Enable PCIe Root Port Clock Gate */
195         // RCBA32(0x341c) = 0x00000001;
196 }
197
198 static void early_ich7_init(void)
199 {
200         uint8_t reg8;
201         uint32_t reg32;
202
203         // program secondary mlt XXX byte?
204         pci_write_config8(PCI_DEV(0, 0x1e, 0), 0x1b, 0x20);
205
206         // reset rtc power status
207         reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa4);
208         reg8 &= ~(1 << 2);
209         pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa4, reg8);
210
211         // usb transient disconnect
212         reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xad);
213         reg8 |= (3 << 0);
214         pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xad, reg8);
215
216         reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xfc);
217         reg32 |= (1 << 29) | (1 << 17);
218         pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xfc, reg32);
219
220         reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xdc);
221         reg32 |= (1 << 31) | (1 << 27);
222         pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xdc, reg32);
223
224         RCBA32(0x0088) = 0x0011d000;
225         RCBA16(0x01fc) = 0x060f;
226         RCBA32(0x01f4) = 0x86000040;
227         RCBA32(0x0214) = 0x10030549;
228         RCBA32(0x0218) = 0x00020504;
229         RCBA8(0x0220) = 0xc5;
230         reg32 = RCBA32(0x3410);
231         reg32 |= (1 << 6);
232         RCBA32(0x3410) = reg32;
233         reg32 = RCBA32(0x3430);
234         reg32 &= ~(3 << 0);
235         reg32 |= (1 << 0);
236         RCBA32(0x3430) = reg32;
237         RCBA32(0x3418) |= (1 << 0);
238         RCBA16(0x0200) = 0x2008;
239         RCBA8(0x2027) = 0x0d;
240         RCBA16(0x3e08) |= (1 << 7);
241         RCBA16(0x3e48) |= (1 << 7);
242         RCBA32(0x3e0e) |= (1 << 7);
243         RCBA32(0x3e4e) |= (1 << 7);
244
245         // next step only on ich7m b0 and later:
246         reg32 = RCBA32(0x2034);
247         reg32 &= ~(0x0f << 16);
248         reg32 |= (5 << 16);
249         RCBA32(0x2034) = reg32;
250 }
251
252 #include <cbmem.h>
253
254 // Now, this needs to be included because it relies on the symbol
255 // __PRE_RAM__ being set during CAR stage (in order to compile the
256 // BSS free versions of the functions). Either rewrite the code
257 // to be always BSS free, or invent a flag that's better suited than
258 // __PRE_RAM__ to determine whether we're in ram init stage (stage 1)
259 //
260 #include "lib/cbmem.c"
261
262 void main(unsigned long bist)
263 {
264         u32 reg32;
265         int boot_mode = 0;
266
267         if (bist == 0) {
268                 enable_lapic();
269         }
270
271         ich7_enable_lpc();
272         early_superio_config_w83627ehg();
273
274         /* Set up the console */
275         uart_init();
276
277 #if CONFIG_USBDEBUG
278         i82801gx_enable_usbdebug(DBGP_DEFAULT);
279         early_usbdebug_init();
280 #endif
281
282         console_init();
283
284         /* Halt if there was a built in self test failure */
285         report_bist_failure(bist);
286
287         if (MCHBAR16(SSKPD) == 0xCAFE) {
288                 printk(BIOS_DEBUG, "soft reset detected, rebooting properly\n");
289                 outb(0x6, 0xcf9);
290                 while (1) asm("hlt");
291         }
292
293         /* Perform some early chipset initialization required
294          * before RAM initialization can work
295          */
296         i945_early_initialization();
297
298         /* Read PM1_CNT */
299         reg32 = inl(DEFAULT_PMBASE + 0x04);
300         printk(BIOS_DEBUG, "PM1_CNT: %08x\n", reg32);
301         if (((reg32 >> 10) & 7) == 5) {
302 #if CONFIG_HAVE_ACPI_RESUME
303                 printk(BIOS_DEBUG, "Resume from S3 detected.\n");
304                 boot_mode = 2;
305                 /* Clear SLP_TYPE. This will break stage2 but
306                  * we care for that when we get there.
307                  */
308                 outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04);
309 #else
310                 printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n");
311 #endif
312         }
313
314         /* Enable SPD ROMs and DDR-II DRAM */
315         enable_smbus();
316
317 #if CONFIG_DEFAULT_CONSOLE_LOGLEVEL > 8
318         dump_spd_registers();
319 #endif
320
321         sdram_initialize(boot_mode);
322
323         /* Perform some initialization that must run before stage2 */
324         early_ich7_init();
325
326         /* This should probably go away. Until now it is required
327          * and mainboard specific
328          */
329         rcba_config();
330
331         /* Chipset Errata! */
332         fixup_i945_errata();
333
334         /* Initialize the internal PCIe links before we go into stage2 */
335         i945_late_initialization();
336
337 #if !CONFIG_HAVE_ACPI_RESUME
338 #if CONFIG_DEFAULT_CONSOLE_LOGLEVEL > 8
339 #if CONFIG_DEBUG_RAM_SETUP
340         sdram_dump_mchbar_registers();
341 #endif
342
343         {
344                 /* This will not work if TSEG is in place! */
345                 u32 tom = pci_read_config32(PCI_DEV(0,2,0), 0x5c);
346
347                 printk(BIOS_DEBUG, "TOM: 0x%08x\n", tom);
348                 ram_check(0x00000000, 0x000a0000);
349                 //ram_check(0x00100000, tom);
350         }
351 #endif
352 #endif
353
354         quick_ram_check();
355
356         MCHBAR16(SSKPD) = 0xCAFE;
357
358 #if CONFIG_HAVE_ACPI_RESUME
359         /* Start address of high memory tables */
360         unsigned long high_ram_base = get_top_of_ram() - HIGH_MEMORY_SIZE;
361
362         /* If there is no high memory area, we didn't boot before, so
363          * this is not a resume. In that case we just create the cbmem toc.
364          */
365         if ((boot_mode == 2) && cbmem_reinit((u64)high_ram_base)) {
366                 void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME);
367
368                 /* copy 1MB - 64K to high tables ram_base to prevent memory corruption
369                  * through stage 2. We could keep stuff like stack and heap in high tables
370                  * memory completely, but that's a wonderful clean up task for another
371                  * day.
372                  */
373                 if (resume_backup_memory)
374                         memcpy(resume_backup_memory, (void *)CONFIG_RAMBASE, HIGH_MEMORY_SAVE);
375
376                 /* Magic for S3 resume */
377                 pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafed00d);
378         }
379 #endif
380 }
381