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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2010 coresystems GmbH
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
* Copyright (C) 2014 Vladimir Serbinenko
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <string.h>
#include <lib.h>
#include <timestamp.h>
#include <arch/byteorder.h>
#include <arch/io.h>
#include <device/pci_def.h>
#include <device/pnp_def.h>
#include <cpu/x86/lapic.h>
#include <pc80/mc146818rtc.h>
#include <arch/acpi.h>
#include <cbmem.h>
#include <console/console.h>
#include "northbridge/intel/sandybridge/sandybridge.h"
#include "northbridge/intel/sandybridge/raminit_native.h"
#include "southbridge/intel/bd82x6x/pch.h"
#include "southbridge/intel/bd82x6x/gpio.h"
#include <arch/cpu.h>
#include <cpu/x86/bist.h>
#include <cpu/x86/msr.h>
#include "gpio.h"
#include <cbfs.h>
#include <cpu/intel/romstage.h>
static void pch_enable_lpc(void)
{
/* X230 EC Decode Range Port60/64, Port62/66 */
/* Enable EC, PS/2 Keyboard/Mouse */
pci_write_config16(PCH_LPC_DEV, LPC_EN,
CNF2_LPC_EN | CNF1_LPC_EN | MC_LPC_EN | KBC_LPC_EN |
COMA_LPC_EN);
pci_write_config32(PCH_LPC_DEV, LPC_GEN1_DEC, 0x7c1601);
pci_write_config32(PCH_LPC_DEV, LPC_GEN2_DEC, 0xc15e1);
pci_write_config32(PCH_LPC_DEV, LPC_GEN4_DEC, 0x0c06a1);
pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x10);
pci_write_config32(PCH_LPC_DEV, 0xac,
0x80010000);
}
static void rcba_config(void)
{
/*
* GFX INTA -> PIRQA (MSI)
* D28IP_P1IP WLAN INTA -> PIRQB
* D28IP_P2IP ETH0 INTB -> PIRQF
* D28IP_P3IP SDCARD INTC -> PIRQD
* D29IP_E1P EHCI1 INTA -> PIRQD
* D26IP_E2P EHCI2 INTA -> PIRQF
* D31IP_SIP SATA INTA -> PIRQB (MSI)
* D31IP_SMIP SMBUS INTB -> PIRQH
* D31IP_TTIP THRT INTC -> PIRQA
* D27IP_ZIP HDA INTA -> PIRQA (MSI)
*
* Trackpad interrupt is edge triggered and cannot be shared.
* TRACKPAD -> PIRQG
*/
/* Device interrupt pin register (board specific) */
RCBA32(D31IP) = (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) |
(INTB << D31IP_SMIP) | (INTA << D31IP_SIP);
RCBA32(D29IP) = (INTA << D29IP_E1P);
RCBA32(D28IP) = (INTA << D28IP_P1IP) | (INTB << D28IP_P2IP) |
(INTC << D28IP_P3IP);
RCBA32(D27IP) = (INTA << D27IP_ZIP);
RCBA32(D26IP) = (INTA << D26IP_E2P);
RCBA32(D25IP) = (NOINT << D25IP_LIP);
RCBA32(D22IP) = (NOINT << D22IP_MEI1IP);
/* Device interrupt route registers */
DIR_ROUTE(D31IR, PIRQB, PIRQH, PIRQA, PIRQC);
DIR_ROUTE(D29IR, PIRQD, PIRQE, PIRQF, PIRQG);
DIR_ROUTE(D28IR, PIRQB, PIRQF, PIRQD, PIRQE);
DIR_ROUTE(D27IR, PIRQA, PIRQH, PIRQA, PIRQB);
DIR_ROUTE(D26IR, PIRQF, PIRQE, PIRQG, PIRQH);
DIR_ROUTE(D25IR, PIRQA, PIRQB, PIRQC, PIRQD);
DIR_ROUTE(D22IR, PIRQA, PIRQB, PIRQC, PIRQD);
/* Enable IOAPIC (generic) */
RCBA16(OIC) = 0x0100;
/* PCH BWG says to read back the IOAPIC enable register */
(void) RCBA16(OIC);
/* Disable unused devices (board specific) */
RCBA32(FD) = 0x17f81fe3;
RCBA32(BUC) = 0;
}
static void init_usb(void)
{
const u32 rcba_dump[64] = {
/* 3500 */ 0x20000f57, 0x20000f57, 0x2000055b, 0x20000f57,
/* 3510 */ 0x20000f57, 0x20000153, 0x20000153, 0x2000055b,
/* 3520 */ 0x20000153, 0x20000f57, 0x20000153, 0x20000153,
/* 3530 */ 0x20000f51, 0x20000f57, 0x00000000, 0x00000000,
/* 3540 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 3550 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 3560 */ 0x024c8001, 0x000024a3, 0x00040002, 0x01000050,
/* 3570 */ 0x02000772, 0x16000f9f, 0x1800ff4f, 0x0001d630,
/* 3580 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 3590 */ 0x00000000, 0x00000000, 0x00000000, 0x00001448,
/* 35a0 */ 0x04000201, 0x00000200, 0x00000000, 0x00000000,
/* 35b0 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 35c0 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 35d0 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 35e0 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
/* 35f0 */ 0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
int i;
/* Activate PMBAR. */
pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE, DEFAULT_PMBASE | 1);
pci_write_config32(PCI_DEV(0, 0x1f, 0), PMBASE + 4, 0);
pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x44 /* ACPI_CNTL */ , 0x80); /* Enable ACPI BAR */
/* Unlock registers. */
outw (inw (DEFAULT_PMBASE | 0x003c) | 2, DEFAULT_PMBASE | 0x003c);
for (i = 0; i < 64; i++)
write32 (DEFAULT_RCBABASE | (0x3500 + 4 * i), rcba_dump[i]);
pcie_write_config32 (PCI_DEV (0, 0x14, 0), 0xe4, 0x00000000);
/* Relock registers. */
outw (0x0000, DEFAULT_PMBASE | 0x003c);
}
void main(unsigned long bist)
{
int s3resume = 0;
u32 pm1_cnt;
u16 pm1_sts;
spd_raw_data spd[4];
if (MCHBAR16(SSKPD) == 0xCAFE) {
outb(0x6, 0xcf9);
hlt ();
}
timestamp_init(get_initial_timestamp());
timestamp_add_now(TS_START_ROMSTAGE);
if (bist == 0)
enable_lapic();
pch_enable_lpc();
/* Enable GPIOs */
pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE|1);
pci_write_config8(PCH_LPC_DEV, GPIO_CNTL, 0x10);
// setup_pch_gpios(&t530_gpio_map);
outl(0x3962a5ff, DEFAULT_GPIOBASE + GPIO_USE_SEL);
outl(0x8ebf6aff, DEFAULT_GPIOBASE + GP_IO_SEL);
outl(0x66917ebb, DEFAULT_GPIOBASE + GP_LVL);
outl(0x00000000, DEFAULT_GPIOBASE + GPO_BLINK);
outl(0x00002002, DEFAULT_GPIOBASE + GPI_INV);
outl(0x02ff08fe, DEFAULT_GPIOBASE + GPIO_USE_SEL2);
outl(0x1f47f7fd, DEFAULT_GPIOBASE + GP_IO_SEL2);
outl(0xffbeff43, DEFAULT_GPIOBASE + GP_LVL2);
outl(0x000000ff, DEFAULT_GPIOBASE + GPIO_USE_SEL3);
outl(0x00000fff, DEFAULT_GPIOBASE + GP_IO_SEL3);
outl(0x00000f4f, DEFAULT_GPIOBASE + GP_LVL3);
init_usb();
/* Initialize console device(s) */
console_init();
/* Halt if there was a built in self test failure */
report_bist_failure(bist);
/* Perform some early chipset initialization required
* before RAM initialization can work
*/
sandybridge_early_initialization(SANDYBRIDGE_MOBILE);
printk(BIOS_DEBUG, "Back from sandybridge_early_initialization()\n");
/* Check PM1_STS[15] to see if we are waking from Sx */
pm1_sts = inw(DEFAULT_PMBASE + PM1_STS);
/* Read PM1_CNT[12:10] to determine which Sx state */
pm1_cnt = inl(DEFAULT_PMBASE + PM1_CNT);
if ((pm1_sts & WAK_STS) && ((pm1_cnt >> 10) & 7) == 5) {
if (acpi_s3_resume_allowed()) {
printk(BIOS_DEBUG, "Resume from S3 detected.\n");
s3resume = 1;
/* Clear SLP_TYPE. This will break stage2 but
* we care for that when we get there.
*/
outl(pm1_cnt & ~(7 << 10), DEFAULT_PMBASE + PM1_CNT);
} else {
printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n");
}
}
post_code(0x38);
/* Enable SPD ROMs and DDR-III DRAM */
enable_smbus();
post_code(0x39);
post_code(0x3a);
timestamp_add_now(TS_BEFORE_INITRAM);
memset (spd, 0, sizeof (spd));
read_spd (&spd[0], 0x50);
read_spd (&spd[2], 0x51);
init_dram_ddr3 (spd, 1, TCK_800MHZ, s3resume);
timestamp_add_now(TS_AFTER_INITRAM);
post_code(0x3c);
rcba_config();
post_code(0x3d);
MCHBAR16(SSKPD) = 0xCAFE;
#if CONFIG_HAVE_ACPI_RESUME
/* If there is no high memory area, we didn't boot before, so
* this is not a resume. In that case we just create the cbmem toc.
*/
*(u32 *)CBMEM_BOOT_MODE = 0;
*(u32 *)CBMEM_RESUME_BACKUP = 0;
if (s3resume) {
void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME);
if (resume_backup_memory) {
*(u32 *)CBMEM_BOOT_MODE = 2;
*(u32 *)CBMEM_RESUME_BACKUP = (u32)resume_backup_memory;
}
/* Magic for S3 resume */
pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafed00d);
} else {
pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafebabe);
}
#endif
post_code(0x3f);
timestamp_add_now(TS_END_ROMSTAGE);
}
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