diff options
Diffstat (limited to 'src/mainboard/lenovo/t520/romstage.c')
-rw-r--r-- | src/mainboard/lenovo/t520/romstage.c | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/t520/romstage.c b/src/mainboard/lenovo/t520/romstage.c new file mode 100644 index 0000000000..a2c3778773 --- /dev/null +++ b/src/mainboard/lenovo/t520/romstage.c @@ -0,0 +1,295 @@ +/* + * 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 <cbmem.h> +#include <console/console.h> +#include <northbridge/intel/sandybridge/sandybridge.h> +#include <northbridge/intel/sandybridge/raminit.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 <cbfs.h> + +static void pch_enable_lpc(void) +{ + /* T520 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; +} + +void main(unsigned long bist) +{ + int boot_mode = 0; + int cbmem_was_initted; + u32 pm1_cnt; + u16 pm1_sts; + + if (MCHBAR16(SSKPD) == 0xCAFE) { + outb(0x6, 0xcf9); + hlt (); + } + + struct pei_data pei_data = { + .pei_version = PEI_VERSION, + .mchbar = DEFAULT_MCHBAR, + .dmibar = DEFAULT_DMIBAR, + .epbar = DEFAULT_EPBAR, + .pciexbar = CONFIG_MMCONF_BASE_ADDRESS, + .smbusbar = SMBUS_IO_BASE, + .wdbbar = 0x4000000, + .wdbsize = 0x1000, + .hpet_address = CONFIG_HPET_ADDRESS, + .rcba = DEFAULT_RCBABASE, + .pmbase = DEFAULT_PMBASE, + .gpiobase = DEFAULT_GPIOBASE, + .thermalbase = 0xfed08000, + .system_type = 0, // 0 Mobile, 1 Desktop/Server + .tseg_size = CONFIG_SMM_TSEG_SIZE, + .spd_addresses = { 0xA0, 0x00,0xA2,0x00 }, + .ts_addresses = { 0x00, 0x00, 0x00, 0x00 }, + .ec_present = 1, + .gbe_enable = 1, + .ddr3lv_support = 0, + // 0 = leave channel enabled + // 1 = disable dimm 0 on channel + // 2 = disable dimm 1 on channel + // 3 = disable dimm 0+1 on channel + .dimm_channel0_disabled = 2, + .dimm_channel1_disabled = 2, + .max_ddr3_freq = 1600, + .usb_port_config = { + /* enabled usb oc pin length */ + { 1, 0, 0x0080 }, /* P0 (left, fan side), OC 0 */ + { 1, 1, 0x0080 }, /* P1 (left touchpad side), OC 1 */ + { 1, 0, 0x0040 }, /* P2: dock, OC 3 */ + { 1, 0, 0x0040 }, /* P3: wwan, no OC */ + { 1, 0, 0x0080 }, /* P4: Wacom tablet on X230t, otherwise empty */ + { 1, 0, 0x0080 }, /* P5: Expresscard, no OC */ + { 0, 0, 0x0000 }, /* P6: Empty */ + { 1, 0, 0x0080 }, /* P7: dock, no OC */ + { 1, 4, 0x0080 }, /* P8: Empty */ + { 1, 5, 0x0080 }, /* P9: Right (EHCI debug), OC 5 */ + { 1, 0, 0x0040 }, /* P10: fingerprint reader, no OC */ + { 1, 0, 0x0040 }, /* P11: bluetooth, no OC. */ + { 1, 0, 0x0040 }, /* P12: wlan, no OC */ + { 1, 0, 0x0080 }, /* P13: webcam, no OC */ + }, + .ddr_refresh_rate_config = 2, /* Force double refresh rate */ + }; + + 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); + + outl(0x3962a5ff, DEFAULT_GPIOBASE); + outl(0x8ebf6aff, DEFAULT_GPIOBASE + 4); + outl(0x66957f3b, DEFAULT_GPIOBASE + 0xc); + outl(0x00080000, DEFAULT_GPIOBASE + 0x20); + outl(0x00002082, DEFAULT_GPIOBASE + 0x2c); + outl(0x02ff06de, DEFAULT_GPIOBASE + 0x30); + outl(0x1f47f9f5, DEFAULT_GPIOBASE + 0x34); + outl(0xbdbffd47, DEFAULT_GPIOBASE + 0x38); + outl(0x000000f0, DEFAULT_GPIOBASE + 0x40); + outl(0x00000ff0, DEFAULT_GPIOBASE + 0x44); + outl(0x00000f4f, DEFAULT_GPIOBASE + 0x48); + outl(0x01000000, DEFAULT_GPIOBASE + 0x60); + + /* 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 CONFIG_HAVE_ACPI_RESUME + printk(BIOS_DEBUG, "Resume from S3 detected.\n"); + boot_mode = 2; + /* 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"); +#endif + } + + post_code(0x38); + /* Enable SPD ROMs and DDR-III DRAM */ + enable_smbus(); + + /* Prepare USB controller early in S3 resume */ + if (boot_mode == 2) + enable_usb_bar(); + + post_code(0x39); + post_code(0x3a); + + pei_data.boot_mode = boot_mode; + timestamp_add_now(TS_BEFORE_INITRAM); + + /* MRC.bin has a bug and sometimes halts (instead of reboot?). + */ + if (boot_mode != 2) { + RCBA32(GCS) = RCBA32(GCS) & ~(1 << 5); /* reset */ + outw((0 << 11), DEFAULT_PMBASE | 0x60 | 0x08); /* let timer go */ + } + + sdram_initialize(&pei_data); + + if (boot_mode != 2) { + RCBA32(GCS) = RCBA32(GCS) | (1 << 5); /* No reset */ + outw((1 << 11), DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */ + } + + timestamp_add_now(TS_AFTER_INITRAM); + post_code(0x3c); + + rcba_config(); + post_code(0x3d); + + quick_ram_check(); + post_code(0x3e); + + MCHBAR16(SSKPD) = 0xCAFE; + cbmem_was_initted = !cbmem_recovery(boot_mode == 2); + if (boot_mode != 2) { + save_mrc_data(&pei_data); + } + +#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 ((boot_mode == 2) && cbmem_was_initted) { + void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME); + if (resume_backup_memory) { + *(u32 *)CBMEM_BOOT_MODE = boot_mode; + *(u32 *)CBMEM_RESUME_BACKUP = (u32)resume_backup_memory; + } + /* Magic for S3 resume */ + pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafed00d); + } else if (boot_mode == 2) { + /* Failed S3 resume, reset to come up cleanly */ + outb(0x6, 0xcf9); + hlt(); + } else { + pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafebabe); + } +#endif + post_code(0x3f); + timestamp_add_now(TS_END_ROMSTAGE); +} |