src/mainboard/intel/xe7501devkit/romstage.c

   1 #include <stdint.h>
   2 #include <device/pci_def.h>
   3 #include <arch/io.h>
   4 #include <device/pnp_def.h>
   5 #include <arch/romcc_io.h>
   6 #include <cpu/x86/lapic.h>
   7 #include <arch/cpu.h>
   8 #include <stdlib.h>
   9 #include <pc80/mc146818rtc.h>
  10 #include <console/console.h>
  11 #include "southbridge/intel/i82801cx/i82801cx_early_smbus.c"
  12 #include "northbridge/intel/e7501/raminit.h"
  13 #include "cpu/x86/lapic/boot_cpu.c"
  14 #include "northbridge/intel/e7501/debug.c"
  15 #include "superio/smsc/lpc47b272/lpc47b272_early_serial.c"
  16 #include "cpu/x86/mtrr/earlymtrr.c"
  17 #include "cpu/x86/bist.h"
  18 #include <spd.h>
  19
  20 #define SERIAL_DEV PNP_DEV(0x2e, LPC47B272_SP1)
  21
  22 static void hard_reset(void)
  23 {
  24         outb(0x0e, 0x0cf9);
  25 }
  26
  27 static inline int spd_read_byte(unsigned device, unsigned address)
  28 {
  29         return smbus_read_byte(device, address);
  30 }
  31
  32 #include "northbridge/intel/e7501/raminit.c"
  33 #include "northbridge/intel/e7501/reset_test.c"
  34 #include "lib/generic_sdram.c"
  35
  36 // This function MUST appear last (ROMCC limitation)
  37 static void main(unsigned long bist)
  38 {
  39         static const struct mem_controller memctrl[] = {
  40                 {
  41                         .d0 = PCI_DEV(0, 0, 0),
  42                         .d0f1 = PCI_DEV(0, 0, 1),
  43                         .channel0 = { DIMM0, DIMM1, DIMM2, 0 },
  44                         .channel1 = { DIMM4, DIMM5, DIMM6, 0 },
  45                 },
  46         };
  47
  48         if (bist == 0) {
  49                 // Skip this if there was a built in self test failure
  50                 early_mtrr_init();
  51                 enable_lapic();
  52         }
  53
  54         // Get the serial port running and print a welcome banner
  55         lpc47b272_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
  56         uart_init();
  57         console_init();
  58
  59         // Halt if there was a built in self test failure
  60         report_bist_failure(bist);
  61
  62         // print_pci_devices();
  63
  64         // If this is a warm boot, some initialization can be skipped
  65
  66         if (!bios_reset_detected())
  67         {
  68                 enable_smbus();
  69                 // dump_spd_registers(&memctrl[0]);
  70                 // dump_smbus_registers();
  71                 sdram_initialize(ARRAY_SIZE(memctrl), memctrl);
  72         }
  73
  74         // NOTE: ROMCC dies with an internal compiler error
  75         //               if the following line is removed.
  76         print_debug("SDRAM is up.\n");
  77 }