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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
* Copyright (C) 2015-2016 Intel Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define __SIMPLE_DEVICE__
#include <arch/early_variables.h>
#include <console/console.h>
#include "../chip.h"
#include <fsp/memmap.h>
#include <fsp/util.h>
#include <soc/pci_devs.h>
#include <soc/QuarkNcSocId.h>
#include <soc/romstage.h>
#include <string.h>
extern void asmlinkage light_sd_led(void);
asmlinkage void *car_stage_c_entry(void)
{
FSP_INFO_HEADER *fih;
struct cache_as_ram_params car_params = {0};
void *top_of_stack;
post_code(0x20);
/* Copy the FSP binary into ESRAM */
memcpy((void *)CONFIG_FSP_ESRAM_LOC, (void *)CONFIG_FSP_LOC,
0x00040000);
/* Locate the FSP header in ESRAM */
fih = find_fsp(CONFIG_FSP_ESRAM_LOC);
if (IS_ENABLED(CONFIG_ENABLE_DEBUG_LED_FINDFSP))
light_sd_led();
/* Start the early verstage/romstage code */
post_code(0x2A);
car_params.fih = fih;
top_of_stack = cache_as_ram_main(&car_params);
/* Initialize MTRRs and switch stacks after RAM initialized */
return top_of_stack;
}
static struct chipset_power_state power_state CAR_GLOBAL;
struct chipset_power_state *get_power_state(void)
{
return (struct chipset_power_state *)car_get_var_ptr(&power_state);
}
struct chipset_power_state *fill_power_state(void)
{
struct chipset_power_state *ps = get_power_state();
ps->prev_sleep_state = 0;
printk(BIOS_SPEW, "prev_sleep_state %d\n", ps->prev_sleep_state);
return ps;
}
size_t mmap_region_granularity(void)
{
/* Align to 8 MiB by default */
return 8 << 20;
}
/* Initialize the UPD parameters for MemoryInit */
void soc_memory_init_params(struct romstage_params *params,
MEMORY_INIT_UPD *upd)
{
const struct device *dev;
const struct soc_intel_quark_config *config;
void *rmu_data;
size_t rmu_data_len;
/* Locate the configuration data from devicetree.cb */
dev = dev_find_slot(0, LPC_DEV_FUNC);
if (!dev) {
printk(BIOS_CRIT,
"Error! Device (PCI:0:%02x.%01x) not found, "
"soc_memory_init_params!\n", PCI_DEVICE_NUMBER_QNC_LPC,
PCI_FUNCTION_NUMBER_QNC_LPC);
return;
}
config = dev->chip_info;
/* Clear SMI and wake events */
clear_smi_and_wake_events();
/* Locate the RMU data file in flash */
rmu_data = locate_rmu_file(&rmu_data_len);
if (!rmu_data)
die("Microcode file (rmu.bin) not found.");
/* Display the ESRAM layout */
if (IS_ENABLED(CONFIG_DISPLAY_ESRAM_LAYOUT)) {
printk(BIOS_SPEW, "\nESRAM Layout:\n\n");
printk(BIOS_SPEW,
"+-------------------+ 0x80080000 - ESRAM end\n");
if (_car_relocatable_data_end != (void *)0x80080000) {
printk(BIOS_SPEW, "| |\n");
printk(BIOS_SPEW, "+-------------------+ 0x%p\n",
_car_relocatable_data_end);
}
printk(BIOS_SPEW, "| coreboot data |\n");
printk(BIOS_SPEW, "+-------------------+ 0x%p\n",
_car_stack_end);
printk(BIOS_SPEW, "| coreboot stack |\n");
printk(BIOS_SPEW, "+-------------------+ 0x%p",
_car_stack_start);
if (IS_ENABLED(CONFIG_SEPARATE_VERSTAGE)) {
printk(BIOS_SPEW, "\n");
printk(BIOS_SPEW, "| vboot data |\n");
printk(BIOS_SPEW, "+-------------------+ 0x%08x",
CONFIG_DCACHE_RAM_BASE);
}
printk(BIOS_SPEW, " (CONFIG_DCACHE_RAM_BASE)\n");
printk(BIOS_SPEW, "| FSP data |\n");
printk(BIOS_SPEW, "+-------------------+\n");
printk(BIOS_SPEW, "| FSP stack |\n");
printk(BIOS_SPEW, "+-------------------+\n");
printk(BIOS_SPEW, "| FSP binary |\n");
printk(BIOS_SPEW,
"+-------------------+ 0x80000000 - ESRAM start\n\n");
}
/* Update the UPD data for MemoryInit */
upd->AddrMode = config->AddrMode;
upd->ChanMask = config->ChanMask;
upd->ChanWidth = config->ChanWidth;
upd->DramDensity = config->DramDensity;
upd->DramRonVal = config->DramRonVal;
upd->DramRttNomVal = config->DramRttNomVal;
upd->DramRttWrVal = config->DramRttWrVal;
upd->DramSpeed = config->DramSpeed;
upd->DramType = config->DramType;
upd->DramWidth = config->DramWidth;
upd->EccScrubBlkSize = config->EccScrubBlkSize;
upd->EccScrubInterval = config->EccScrubInterval;
upd->Flags = config->Flags;
upd->FspReservedMemoryLength = config->FspReservedMemoryLength;
upd->RankMask = config->RankMask;
upd->RmuBaseAddress = (uintptr_t)rmu_data;
upd->RmuLength = rmu_data_len;
upd->SerialPortWriteChar = console_log_level(BIOS_SPEW)
? (uintptr_t)fsp_write_line : 0;
upd->SmmTsegSize = IS_ENABLED(CONFIG_HAVE_SMI_HANDLER) ?
config->SmmTsegSize : 0;
upd->SocRdOdtVal = config->SocRdOdtVal;
upd->SocWrRonVal = config->SocWrRonVal;
upd->SocWrSlewRate = config->SocWrSlewRate;
upd->SrInt = config->SrInt;
upd->SrTemp = config->SrTemp;
upd->tCL = config->tCL;
upd->tFAW = config->tFAW;
upd->tRAS = config->tRAS;
upd->tRRD = config->tRRD;
upd->tWTR = config->tWTR;
}
void soc_display_memory_init_params(const MEMORY_INIT_UPD *old,
MEMORY_INIT_UPD *new)
{
/* Display the parameters for MemoryInit */
printk(BIOS_SPEW, "UPD values for MemoryInit at: 0x%p\n", new);
fsp_display_upd_value("AddrMode", sizeof(old->AddrMode),
old->AddrMode, new->AddrMode);
fsp_display_upd_value("ChanMask", sizeof(old->ChanMask),
old->ChanMask, new->ChanMask);
fsp_display_upd_value("ChanWidth", sizeof(old->ChanWidth),
old->ChanWidth, new->ChanWidth);
fsp_display_upd_value("DramDensity", sizeof(old->DramDensity),
old->DramDensity, new->DramDensity);
fsp_display_upd_value("DramRonVal", sizeof(old->DramRonVal),
old->DramRonVal, new->DramRonVal);
fsp_display_upd_value("DramRttNomVal", sizeof(old->DramRttNomVal),
old->DramRttNomVal, new->DramRttNomVal);
fsp_display_upd_value("DramRttWrVal", sizeof(old->DramRttWrVal),
old->DramRttWrVal, new->DramRttWrVal);
fsp_display_upd_value("DramSpeed", sizeof(old->DramSpeed),
old->DramSpeed, new->DramSpeed);
fsp_display_upd_value("DramType", sizeof(old->DramType),
old->DramType, new->DramType);
fsp_display_upd_value("DramWidth", sizeof(old->DramWidth),
old->DramWidth, new->DramWidth);
fsp_display_upd_value("EccScrubBlkSize", sizeof(old->EccScrubBlkSize),
old->EccScrubBlkSize, new->EccScrubBlkSize);
fsp_display_upd_value("EccScrubInterval", sizeof(old->EccScrubInterval),
old->EccScrubInterval, new->EccScrubInterval);
fsp_display_upd_value("Flags", sizeof(old->Flags), old->Flags,
new->Flags);
fsp_display_upd_value("FspReservedMemoryLength",
sizeof(old->FspReservedMemoryLength),
old->FspReservedMemoryLength, new->FspReservedMemoryLength);
fsp_display_upd_value("RankMask", sizeof(old->RankMask), old->RankMask,
new->RankMask);
fsp_display_upd_value("RmuBaseAddress", sizeof(old->RmuBaseAddress),
old->RmuBaseAddress, new->RmuBaseAddress);
fsp_display_upd_value("RmuLength", sizeof(old->RmuLength),
old->RmuLength, new->RmuLength);
fsp_display_upd_value("SerialPortPollForChar",
sizeof(old->SerialPortPollForChar),
old->SerialPortPollForChar, new->SerialPortPollForChar);
fsp_display_upd_value("SerialPortReadChar",
sizeof(old->SerialPortReadChar),
old->SerialPortReadChar, new->SerialPortReadChar);
fsp_display_upd_value("SerialPortWriteChar",
sizeof(old->SerialPortWriteChar),
old->SerialPortWriteChar, new->SerialPortWriteChar);
fsp_display_upd_value("SmmTsegSize", sizeof(old->SmmTsegSize),
old->SmmTsegSize, new->SmmTsegSize);
fsp_display_upd_value("SocRdOdtVal", sizeof(old->SocRdOdtVal),
old->SocRdOdtVal, new->SocRdOdtVal);
fsp_display_upd_value("SocWrRonVal", sizeof(old->SocWrRonVal),
old->SocWrRonVal, new->SocWrRonVal);
fsp_display_upd_value("SocWrSlewRate", sizeof(old->SocWrSlewRate),
old->SocWrSlewRate, new->SocWrSlewRate);
fsp_display_upd_value("SrInt", sizeof(old->SrInt), old->SrInt,
new->SrInt);
fsp_display_upd_value("SrTemp", sizeof(old->SrTemp), old->SrTemp,
new->SrTemp);
fsp_display_upd_value("tCL", sizeof(old->tCL), old->tCL, new->tCL);
fsp_display_upd_value("tFAW", sizeof(old->tFAW), old->tFAW, new->tFAW);
fsp_display_upd_value("tRAS", sizeof(old->tRAS), old->tRAS, new->tRAS);
fsp_display_upd_value("tRRD", sizeof(old->tRRD), old->tRRD, new->tRRD);
fsp_display_upd_value("tWTR", sizeof(old->tWTR), old->tWTR, new->tWTR);
}
void soc_after_ram_init(struct romstage_params *params)
{
/* Disable the ROM shadow 0x000e0000 - 0x000fffff */
disable_rom_shadow();
/* Initialize the PCIe bridges */
pcie_init();
}
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