src/mainboard/kontron/kt690/romstage.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2008 Advanced Micro Devices, Inc.
   5  * Copyright (C) 2009 coresystems GmbH
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of 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, MA  02110-1301 USA
  19  */
  20
  21 #define RC0 (6<<8)
  22 #define RC1 (7<<8)
  23
  24 #define SMBUS_HUB 0x71
  25
  26 #include <stdint.h>
  27 #include <string.h>
  28 #include <device/pci_def.h>
  29 #include <arch/io.h>
  30 #include <device/pnp_def.h>
  31 #include <arch/romcc_io.h>
  32 #include <cpu/x86/lapic.h>
  33 #include <pc80/mc146818rtc.h>
  34 #include <console/console.h>
  35 #include <cpu/amd/model_fxx_rev.h>
  36 #include "northbridge/amd/amdk8/raminit.h"
  37 #include "cpu/amd/model_fxx/apic_timer.c"
  38 #include "lib/delay.c"
  39 #include <spd.h>
  40 #include "cpu/x86/lapic/boot_cpu.c"
  41 #include "northbridge/amd/amdk8/reset_test.c"
  42 #include "northbridge/amd/amdk8/debug.c"
  43 #include "superio/winbond/w83627dhg/early_serial.c"
  44 #include <cpu/amd/mtrr.h>
  45 #include "cpu/x86/bist.h"
  46 #include "northbridge/amd/amdk8/setup_resource_map.c"
  47 #include "southbridge/amd/rs690/early_setup.c"
  48 #include "southbridge/amd/sb600/early_setup.c"
  49
  50 static void memreset(int controllers, const struct mem_controller *ctrl) { }
  51 static void activate_spd_rom(const struct mem_controller *ctrl) { }
  52
  53 static inline int spd_read_byte(u32 device, u32 address)
  54 {
  55         return smbus_read_byte(device, address);
  56 }
  57
  58 #include "northbridge/amd/amdk8/amdk8.h"
  59 #include "northbridge/amd/amdk8/incoherent_ht.c"
  60 #include "northbridge/amd/amdk8/raminit_f.c"
  61 #include "northbridge/amd/amdk8/coherent_ht.c"
  62 #include "lib/generic_sdram.c"
  63 #include "resourcemap.c"
  64 #include "cpu/amd/dualcore/dualcore.c"
  65 #include "cpu/amd/car/post_cache_as_ram.c"
  66 #include "cpu/amd/model_fxx/init_cpus.c"
  67 #include "cpu/amd/model_fxx/fidvid.c"
  68 #include "northbridge/amd/amdk8/early_ht.c"
  69
  70 #define SERIAL_DEV PNP_DEV(0x2e, W83627DHG_SP1)
  71
  72 void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
  73 {
  74         static const u16 spd_addr[] = { DIMM0, 0, 0, 0, DIMM1, 0, 0, 0, };
  75         int needs_reset = 0;
  76         u32 bsp_apicid = 0;
  77         msr_t msr;
  78         struct cpuid_result cpuid1;
  79         struct sys_info *sysinfo = (struct sys_info *)(CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE);
  80
  81         if (!cpu_init_detectedx && boot_cpu()) {
  82                 /* Nothing special needs to be done to find bus 0 */
  83                 /* Allow the HT devices to be found */
  84                 enumerate_ht_chain();
  85                 /* sb600_lpc_port80(); */
  86                 sb600_pci_port80();
  87         }
  88
  89         if (bist == 0)
  90                 bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
  91
  92         enable_rs690_dev8();
  93         sb600_lpc_init();
  94
  95         w83627dhg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
  96
  97         console_init();
  98
  99         /* Halt if there was a built in self test failure */
 100         report_bist_failure(bist);
 101         printk(BIOS_DEBUG, "bsp_apicid=0x%x\n", bsp_apicid);
 102
 103         setup_kt690_resource_map();
 104
 105         setup_coherent_ht_domain();
 106
 107 #if CONFIG_LOGICAL_CPUS==1
 108         /* It is said that we should start core1 after all core0 launched */
 109         wait_all_core0_started();
 110         start_other_cores();
 111 #endif
 112         wait_all_aps_started(bsp_apicid);
 113
 114         ht_setup_chains_x(sysinfo);
 115
 116         /* run _early_setup before soft-reset. */
 117         rs690_early_setup();
 118         sb600_early_setup();
 119
 120         /* Check to see if processor is capable of changing FIDVID  */
 121         /* otherwise it will throw a GP# when reading FIDVID_STATUS */
 122         cpuid1 = cpuid(0x80000007);
 123         if ((cpuid1.edx & 0x6) == 0x6) {
 124                 /* Read FIDVID_STATUS */
 125                 msr=rdmsr(0xc0010042);
 126                 printk(BIOS_DEBUG, "begin msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
 127
 128                 enable_fid_change();
 129                 enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
 130                 init_fidvid_bsp(bsp_apicid);
 131
 132                 /* show final fid and vid */
 133                 msr=rdmsr(0xc0010042);
 134                 printk(BIOS_DEBUG, "end msr fid, vid: hi=0x%x, lo=0x%x\n", msr.hi, msr.lo);
 135         } else {
 136                 printk(BIOS_DEBUG, "Changing FIDVID not supported\n");
 137                 printk(BIOS_SPEW, "... because cpuid returned %08x\n", cpuid1.edx);
 138         }
 139
 140         needs_reset = optimize_link_coherent_ht();
 141         needs_reset |= optimize_link_incoherent_ht(sysinfo);
 142         rs690_htinit();
 143         printk(BIOS_DEBUG, "needs_reset=0x%x\n", needs_reset);
 144
 145         if (needs_reset) {
 146                 print_info("ht reset -\n");
 147                 soft_reset();
 148         }
 149
 150         allow_all_aps_stop(bsp_apicid);
 151
 152         /* It's the time to set ctrl now; */
 153         printk(BIOS_DEBUG, "sysinfo->nodes: %2x  sysinfo->ctrl: %p  spd_addr: %p\n",
 154                      sysinfo->nodes, sysinfo->ctrl, spd_addr);
 155         fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
 156         sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
 157
 158         rs690_before_pci_init();
 159         sb600_before_pci_init();
 160
 161         post_cache_as_ram();
 162 }