2 #include <device/pci_def.h>
4 #include <device/pnp_def.h>
5 #include <arch/romcc_io.h>
6 #include <cpu/x86/lapic.h>
8 #include "option_table.h"
9 #include "pc80/mc146818rtc_early.c"
10 #include <console/console.h>
11 #include "lib/ramtest.c"
12 #include "southbridge/intel/i82801ex/i82801ex_early_smbus.c"
13 #include "northbridge/intel/e7520/raminit.h"
14 #include "superio/nsc/pc8374/pc8374_early_init.c"
15 #include "cpu/x86/lapic/boot_cpu.c"
16 #include "cpu/x86/mtrr/earlymtrr.c"
19 // Remove comment if resets in this file are actually used.
21 #include "s1850_fixups.c"
22 #include "northbridge/intel/e7520/memory_initialized.c"
23 #include "cpu/x86/bist.h"
25 #define SIO_GPIO_BASE 0x680
26 #define SIO_XBUS_BASE 0x4880
28 #define CONSOLE_SERIAL_DEV PNP_DEV(0x2e, PC8374_SP1)
30 #define DEVPRES_CONFIG ( \
38 #define DEVPRES1_CONFIG (DEVPRES1_D0F1 | DEVPRES1_D8F0)
40 #define RECVENA_CONFIG 0x0808090a
41 #define RECVENB_CONFIG 0x0808090a
43 static inline int spd_read_byte(unsigned device, unsigned address)
45 return smbus_read_byte(device, address);
48 /* this is very highly mainboard dependent, related to wiring */
49 /* from factory BIOS via lspci */
50 #define DIMM_MAP_LOGICAL 0x2841
51 #include "northbridge/intel/e7520/raminit.c"
52 #include "lib/generic_sdram.c"
54 /* IPMI garbage. This is all test stuff, if it really works we'll move it somewhere
57 #define nftransport 0xc
62 #define ipmidata 0xca0
65 static inline void ibfzero(void)
67 while(inb(ipmicsr) & (1<<IBF))
70 static inline void clearobf(void)
75 static inline void waitobf(void)
77 while((inb(ipmicsr) & (1<<OBF)) == 0)
80 /* quite possibly the stupidest interface ever designed. */
81 static inline void first_cmd_byte(unsigned char byte)
91 static inline void next_cmd_byte(unsigned char byte)
99 static inline void last_cmd_byte(unsigned char byte)
105 outb(byte, ipmidata);
108 static inline void read_response_byte(void)
111 if ((inb(ipmicsr)>>6) != 1)
117 outb(0x68, ipmidata);
119 /* see if it is done */
120 if ((inb(ipmicsr)>>6) != 1){
121 /* wait for the dummy read. Which describes this protocol */
127 static inline void ipmidelay(void)
130 for(i = 0; i < 1000; i++) {
135 static inline void bmc_foad(void)
138 /* be safe; make sure it is really ready */
139 while ((inb(ipmicsr)>>6)) {
143 first_cmd_byte(nftransport << 2);
153 /* end IPMI garbage */
155 #include "arch/i386/lib/stages.c"
157 static void main(unsigned long bist)
167 static const struct mem_controller mch[] = {
171 .f0 = PCI_DEV(0, 0x00, 0),
172 .f1 = PCI_DEV(0, 0x00, 1),
173 .f2 = PCI_DEV(0, 0x00, 2),
174 .f3 = PCI_DEV(0, 0x00, 3),
176 /* the wiring on this part is really messed up */
177 /* this is my best guess so far */
178 .channel0 = {(0xa<<3)|0, (0xa<<3)|1, (0xa<<3)|2, (0xa<<3)|3, },
179 .channel1 = {(0xa<<3)|4, (0xa<<3)|5, (0xa<<3)|6, (0xa<<3)|7, },
184 /* observed from serialice */
185 static const u8 earlyinit[] = {
194 /* using SerialICE, we've seen this basic reset sequence on the dell.
195 * we don't understand it as it uses undocumented registers, but
196 * we're going to clone it.
198 /* enable a hidden device. */
199 b = pci_read_config8(PCI_DEV(0, 0, 0), 0xf4);
201 pci_write_config8(PCI_DEV(0, 0, 0), 0xf4, b);
203 /* read-write lock in CMOS on LPC bridge on ICH5 */
204 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xd8, 4);
206 /* operate on undocumented device */
207 l = pci_read_config32(PCI_DEV(0, 0, 2), 0xa4);
209 pci_write_config32(PCI_DEV(0, 0, 2), 0xa4, l);
211 l = pci_read_config32(PCI_DEV(0, 0, 2), 0x9c);
213 pci_write_config32(PCI_DEV(0, 0, 2), 0x9c, l);
215 /* disable undocumented device */
216 b = pci_read_config8(PCI_DEV(0, 0, 0), 0xf4);
218 pci_write_config8(PCI_DEV(0, 0, 0), 0xf4, b);
220 /* set up LPC bridge bits, some of which reply on undocumented
224 b= pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xd8);
226 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xd8, b);
228 b= pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xd4);
230 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xd4, b);
232 /* ACPI base address */
233 pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x40, 0x800);
235 /* Enable specific ACPI features */
236 b= pci_read_config8(PCI_DEV(0, 0x1f, 0), 0x44);
238 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44, b);
242 outw(w|0x800, 0x868);
248 dell does this so leave it here so I don't forget
251 pci_write_config16(PCI_DEV(0, 0x1f, 3), 0x20, 0x08c0);
258 /* another device enable? */
259 b = pci_read_config8(PCI_DEV(0, 0, 0), 0xf4);
261 pci_write_config8(PCI_DEV(0, 0, 0), 0xf4, b);
264 l = pci_read_config32(PCI_DEV(0, 8, 0), 0xc0);
265 do_reset = l & 0x8000000;
267 pci_write_config32(PCI_DEV(0, 8, 0), 0xc0, l);
274 /* Skip this if there was a built in self test failure */
276 if (memory_initialized()) {
280 /* Setup the console */
281 mainboard_set_ich5();
283 pc8374_enable_dev(CONSOLE_SERIAL_DEV, CONFIG_TTYS0_BASE);
287 /* stuff we seem to need */
288 pc8374_enable_dev(PNP_DEV(0x2e, PC8374_KBCK), 0);
291 pc8374_enable_dev(PNP_DEV(0x2e, PC8374_GPIO), 0xc20);
293 /* keep this in mind.
294 SerialICE-hlp: outb 002e <= 23
295 SerialICE-hlp: inb 002f => 05
296 SerialICE-hlp: outb 002f <= 05
297 SerialICE-hlp: outb 002e <= 24
298 SerialICE-hlp: inb 002f => c1
299 SerialICE-hlp: outb 002f <= c1
302 /* Halt if there was a built in self test failure */
303 // report_bist_failure(bist);
305 /* MOVE ME TO A BETTER LOCATION !!! */
306 /* config LPC decode for flash memory access */
308 dev = pci_locate_device(PCI_ID(0x8086, 0x24d0), 0);
309 if (dev == PCI_DEV_INVALID) {
310 die("Missing ich5?");
312 pci_write_config32(dev, 0xe8, 0x00000000);
313 pci_write_config8(dev, 0xf0, 0x00);
316 display_cpuid_update_microcode();
325 // dump_spd_registers(&cpu[0]);
327 for(i = 0; i < 1; i++) {
328 dump_spd_registers();
335 // dump_ipmi_registers();
336 mainboard_set_e7520_leds();
338 sdram_initialize(ARRAY_SIZE(mch), mch);
343 dump_pci_device(PCI_DEV(0, 0x00, 0));
344 // dump_bar14(PCI_DEV(0, 0x00, 0));
347 #if 1 // temporarily disabled
348 /* Check the first 1M */
349 // ram_check(0x00000000, 0x000100000);
350 // ram_check(0x00000000, 0x000a0000);
351 // ram_check(0x00100000, 0x01000000);
352 ram_check(0x00100000, 0x00100100);
353 /* check the first 1M in the 3rd Gig */
354 // ram_check(0x30100000, 0x31000000);
357 ram_check(0x00000000, 0x02000000);