4 #include <device/pci_def.h>
6 #include <device/pnp_def.h>
7 #include <arch/romcc_io.h>
8 #include <cpu/x86/lapic.h>
10 #include "option_table.h"
11 #include "pc80/mc146818rtc_early.c"
12 #include "pc80/serial.c"
13 #include "arch/i386/lib/console.c"
14 #include "lib/ramtest.c"
15 #include "southbridge/intel/i82801er/i82801er_early_smbus.c"
16 #include "northbridge/intel/e7520/raminit.h"
17 #include "superio/nsc/pc8374/pc8374_early_init.c"
18 #include "cpu/x86/lapic/boot_cpu.c"
19 #include "cpu/x86/mtrr/earlymtrr.c"
23 #include "s1850_fixups.c"
24 #include "northbridge/intel/e7520/memory_initialized.c"
25 #include "cpu/x86/bist.h"
28 #define SIO_GPIO_BASE 0x680
29 #define SIO_XBUS_BASE 0x4880
31 #define CONSOLE_SERIAL_DEV PNP_DEV(0x2e, PC8374_SP1)
33 #define DEVPRES_CONFIG ( \
41 #define DEVPRES1_CONFIG (DEVPRES1_D0F1 | DEVPRES1_D8F0)
43 #define RECVENA_CONFIG 0x0808090a
44 #define RECVENB_CONFIG 0x0808090a
46 static inline void activate_spd_rom(const struct mem_controller *ctrl)
50 static inline int spd_read_byte(unsigned device, unsigned address)
52 return smbus_read_byte(device, address);
55 /* this is very highly mainboard dependent, related to wiring */
56 /* from factory BIOS via lspci */
57 #define DIMM_MAP_LOGICAL 0x2841
58 #include "northbridge/intel/e7520/raminit.c"
59 #include "lib/generic_sdram.c"
62 /* IPMI garbage. This is all test stuff, if it really works we'll move it somewhere
65 #define nftransport 0xc
70 #define ipmidata 0xca0
74 static inline void ibfzero(void)
76 while(inb(ipmicsr) & (1<<IBF))
79 static inline void clearobf(void)
84 static inline void waitobf(void)
86 while((inb(ipmicsr) & (1<<OBF)) == 0)
89 /* quite possibly the stupidest interface ever designed. */
90 static inline void first_cmd_byte(unsigned char byte)
100 static inline void next_cmd_byte(unsigned char byte)
105 outb(byte, ipmidata);
108 static inline void last_cmd_byte(unsigned char byte)
114 outb(byte, ipmidata);
117 static inline void read_response_byte(void)
120 if ((inb(ipmicsr)>>6) != 1)
126 outb(0x68, ipmidata);
128 /* see if it is done */
129 if ((inb(ipmicsr)>>6) != 1){
130 /* wait for the dummy read. Which describes this protocol */
136 static inline void ipmidelay(void)
139 for(i = 0; i < 1000; i++) {
144 static inline void bmc_foad(void)
147 /* be safe; make sure it is really ready */
148 while ((inb(ipmicsr)>>6)) {
152 first_cmd_byte(nftransport << 2);
162 /* end IPMI garbage */
164 static void main(unsigned long bist)
174 static const struct mem_controller mch[] = {
177 .f0 = PCI_DEV(0, 0x00, 0),
178 .f1 = PCI_DEV(0, 0x00, 1),
179 .f2 = PCI_DEV(0, 0x00, 2),
180 .f3 = PCI_DEV(0, 0x00, 3),
181 /* the wiring on this part is really messed up */
182 /* this is my best guess so far */
183 .channel0 = {(0xa<<3)|0, (0xa<<3)|1, (0xa<<3)|2, (0xa<<3)|3, },
184 .channel1 = {(0xa<<3)|4, (0xa<<3)|5, (0xa<<3)|6, (0xa<<3)|7, },
189 /* observed from serialice */
190 static const u8 earlyinit[] = {
199 /* using SerialICE, we've seen this basic reset sequence on the dell.
200 * we don't understand it as it uses undocumented registers, but
201 * we're going to clone it.
203 /* enable a hidden device. */
204 b = pci_read_config8(PCI_DEV(0, 0, 0), 0xf4);
206 pci_write_config8(PCI_DEV(0, 0, 0), 0xf4, b);
208 /* read-write lock in CMOS on LPC bridge on ICH5 */
209 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xd8, 4);
211 /* operate on undocumented device */
212 l = pci_read_config32(PCI_DEV(0, 0, 2), 0xa4);
214 pci_write_config32(PCI_DEV(0, 0, 2), 0xa4, l);
216 l = pci_read_config32(PCI_DEV(0, 0, 2), 0x9c);
218 pci_write_config32(PCI_DEV(0, 0, 2), 0x9c, l);
220 /* disable undocumented device */
221 b = pci_read_config8(PCI_DEV(0, 0, 0), 0xf4);
223 pci_write_config8(PCI_DEV(0, 0, 0), 0xf4, b);
225 /* set up LPC bridge bits, some of which reply on undocumented
229 b= pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xd8);
231 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xd8, b);
233 b= pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xd4);
235 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xd4, b);
237 /* ACPI base address */
238 pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x40, 0x800);
240 /* Enable specific ACPI features */
241 b= pci_read_config8(PCI_DEV(0, 0x1f, 0), 0x44);
243 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44, b);
247 outw(w|0x800, 0x868);
253 dell does this so leave it here so I don't forget
256 pci_write_config16(PCI_DEV(0, 0x1f, 3), 0x20, 0x08c0);
263 /* another device enable? */
264 b = pci_read_config8(PCI_DEV(0, 0, 0), 0xf4);
266 pci_write_config8(PCI_DEV(0, 0, 0), 0xf4, b);
269 l = pci_read_config32(PCI_DEV(0, 8, 0), 0xc0);
270 do_reset = l & 0x8000000;
272 pci_write_config32(PCI_DEV(0, 8, 0), 0xc0, l);
279 /* Skip this if there was a built in self test failure */
281 if (memory_initialized()) {
282 asm volatile ("jmp __cpu_reset");
285 /* Setup the console */
286 mainboard_set_ich5();
288 pc8374_enable_dev(CONSOLE_SERIAL_DEV, CONFIG_TTYS0_BASE);
293 /* stuff we seem to need */
294 pc8374_enable_dev(PNP_DEV(0x2e, PC8374_KBCK), 0);
297 pc8374_enable_dev(PNP_DEV(0x2e, PC8374_GPIO), 0xc20);
299 /* keep this in mind.
300 SerialICE-hlp: outb 002e <= 23
301 SerialICE-hlp: inb 002f => 05
302 SerialICE-hlp: outb 002f <= 05
303 SerialICE-hlp: outb 002e <= 24
304 SerialICE-hlp: inb 002f => c1
305 SerialICE-hlp: outb 002f <= c1
308 /* Halt if there was a built in self test failure */
309 // report_bist_failure(bist);
311 /* MOVE ME TO A BETTER LOCATION !!! */
312 /* config LPC decode for flash memory access */
314 dev = pci_locate_device(PCI_ID(0x8086, 0x24d0), 0);
315 if (dev == PCI_DEV_INVALID) {
316 die("Missing ich5?");
318 pci_write_config32(dev, 0xe8, 0x00000000);
319 pci_write_config8(dev, 0xf0, 0x00);
322 display_cpuid_update_microcode();
331 // dump_spd_registers(&cpu[0]);
333 for(i = 0; i < 1; i++) {
334 dump_spd_registers();
341 // dump_ipmi_registers();
342 mainboard_set_e7520_leds();
345 sdram_initialize(ARRAY_SIZE(mch), mch);
350 dump_pci_device(PCI_DEV(0, 0x00, 0));
351 // dump_bar14(PCI_DEV(0, 0x00, 0));
354 #if 1 // temporarily disabled
355 /* Check the first 1M */
356 // ram_check(0x00000000, 0x000100000);
357 // ram_check(0x00000000, 0x000a0000);
358 // ram_check(0x00100000, 0x01000000);
359 ram_check(0x00100000, 0x00100100);
360 /* check the first 1M in the 3rd Gig */
361 // ram_check(0x30100000, 0x31000000);
364 ram_check(0x00000000, 0x02000000);