diff options
Diffstat (limited to 'src/mainboard/kontron/ktqm77/romstage.c')
| -rw-r--r-- | src/mainboard/kontron/ktqm77/romstage.c | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/src/mainboard/kontron/ktqm77/romstage.c b/src/mainboard/kontron/ktqm77/romstage.c new file mode 100644 index 0000000000..79fafe0273 --- /dev/null +++ b/src/mainboard/kontron/ktqm77/romstage.c @@ -0,0 +1,350 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2010 coresystems GmbH + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * + * 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/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 "gpio.h" + +static void pch_enable_lpc(void) +{ + /* Set COM3/COM1 decode ranges: 0x3e8/0x3f8 */ + pci_write_config16(PCH_LPC_DEV, LPC_IO_DEC, 0x0070); + + /* Enable KBC on 0x06/0x64 (KBC), + * EC on 0x62/0x66 (MC), + * EC on 0x20c-0x20f (GAMEH), + * Super I/O on 0x2e/0x2f (CNF1), + * COM1/COM3 decode ranges. */ + pci_write_config16(PCH_LPC_DEV, LPC_EN, + KBC_LPC_EN | MC_LPC_EN | + CNF1_LPC_EN | GAMEH_LPC_EN | + COMA_LPC_EN | COMB_LPC_EN); +} + +static void rcba_config(void) +{ + u32 reg32; + + /* + * D31IP_TTIP THRT INTC -> PIRQC + * D31IP_SIP2 SATA2 NOINT + * D31IP_SMIP SMBUS INTC -> PIRQC + * D31IP_SIP SATA INTB -> PIRQD (MSI) + * D29IP_E1P EHCI1 INTA -> PIRQH + * D28IP_P8IP Slot? INTD -> PIRQD + * D28IP_P7IP PCIEx1 INTC -> PIRQC + * D28IP_P6IP 1394 INTB -> PIRQB (MSI) + * D28IP_P5IP GbEPHY INTA -> PIRQA + * D28IP_P4IP ETH2 INTD -> PIRQD (MSI) + * D28IP_P3IP ETH1 INTC -> PIRQC (MSI) + * D28IP_P2IP Slot? INTB -> PIRQB + * D28IP_P1IP Slot? INTA -> PIRQA + * D27IP_ZIP HDA INTA -> PIRQG (MSI) + * D26IP_E2P EHCI2 INTA -> PIRQA + * D25IP_LIP ETH0 INTA -> PIRQE (MSI) + * D22IP_KTIP MEI NOINT + * D22IP_IDERIP MEI NOINT + * D22IP_MEI2IP MEI NOINT + * D22IP_MEI1IP MEI NOINT + * D20IP_XHCIIP XHCI INTA -> PIRQA (MSI) + * GFX INTA -> PIRQA (MSI) + * PEGx16 INTA -> PIRQA + * INTB -> PIRQB + * INTC -> PIRQC + * INTD -> PIRQD + */ + + /* Device interrupt pin register (board specific) */ + RCBA32(D31IP) = (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) | + (INTC << D31IP_SMIP) | (INTB << D31IP_SIP); + RCBA32(D29IP) = (INTA << D29IP_E1P); + RCBA32(D28IP) = (INTA << D28IP_P1IP) | (INTB << D28IP_P2IP) | + (INTC << D28IP_P3IP) | (INTD << D28IP_P4IP) | + (INTA << D28IP_P5IP) | (INTB << D28IP_P6IP) | + (INTC << D28IP_P7IP) | (INTD << D28IP_P8IP); + RCBA32(D27IP) = (INTA << D27IP_ZIP); + RCBA32(D26IP) = (INTA << D26IP_E2P); + RCBA32(D25IP) = (INTA << D25IP_LIP); + RCBA32(D22IP) = (NOINT << D22IP_MEI1IP); + RCBA32(D20IP) = (INTA << D20IP_XHCIIP); + + /* Device interrupt route registers */ + DIR_ROUTE(D31IR, PIRQA, PIRQD, PIRQC, PIRQA); + DIR_ROUTE(D29IR, PIRQH, PIRQD, PIRQA, PIRQC); + DIR_ROUTE(D28IR, PIRQA, PIRQB, PIRQC, PIRQD); + DIR_ROUTE(D27IR, PIRQG, PIRQB, PIRQC, PIRQD); + DIR_ROUTE(D26IR, PIRQA, PIRQF, PIRQC, PIRQD); + DIR_ROUTE(D25IR, PIRQE, PIRQF, PIRQG, PIRQH); + DIR_ROUTE(D22IR, PIRQA, PIRQD, PIRQC, PIRQB); + DIR_ROUTE(D20IR, 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) */ + reg32 = RCBA32(FD); + reg32 |= PCH_DISABLE_ALWAYS; + /* Disable PCI bridge so MRC does not probe this bus */ + reg32 |= PCH_DISABLE_P2P; + RCBA32(FD) = reg32; +} + +static void pnp_enter_ext_func_mode(device_t dev) +{ + u16 port = dev >> 8; + outb(0x87, port); + outb(0x87, port); +} + +static void pnp_exit_ext_func_mode(device_t dev) +{ + u16 port = dev >> 8; + outb(0xaa, port); +} + +static void superio_gpio_config(void) +{ + device_t dev = PNP_DEV(0x2e, 0x9); + pnp_enter_ext_func_mode(dev); + pnp_set_logical_device(dev); + /* Values can only be changed, when devices are enabled. */ + pnp_write_config(dev, 0x30, 0x03); /* Enable GPIO2+3 */ + pnp_write_config(dev, 0xe3, 0xdd); /* GPIO2 bits 1, 5 are output */ + pnp_write_config(dev, 0xe4, 0x22); /* GPIO2 bits 1, 5 are 1 */ + pnp_exit_ext_func_mode(dev); +} + +void main(unsigned long bist) +{ + int boot_mode = 0; + int cbmem_was_initted; + u32 pm1_cnt; + u16 pm1_sts; + +#if CONFIG_COLLECT_TIMESTAMPS + tsc_t start_romstage_time; + tsc_t before_dram_time; + tsc_t after_dram_time; + tsc_t base_time = { + .lo = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xdc), + .hi = pci_read_config32(PCI_DEV(0, 0x1f, 2), 0xd0) + }; +#endif + 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, 0x00,0xA4,0x00 }, + 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, 0x0040 }, /* P0: lower left USB 3.0 (OC0) */ + { 1, 0, 0x0040 }, /* P1: upper left USB 3.0 (OC0) */ + { 1, 0, 0x0040 }, /* P2: lower right USB 3.0 (OC0) */ + { 1, 0, 0x0040 }, /* P3: upper right USB 3.0 (OC0) */ + { 1, 0, 0x0040 }, /* P4: lower USB 2.0 (OC0) */ + { 1, 0, 0x0040 }, /* P5: upper USB 2.0 (OC0) */ + { 1, 0, 0x0040 }, /* P6: front panel USB 2.0 (OC0) */ + { 1, 0, 0x0040 }, /* P7: front panel USB 2.0 (OC0) */ + { 1, 4, 0x0040 }, /* P8: internal USB 2.0 (OC4) */ + { 1, 4, 0x0040 }, /* P9: internal USB 2.0 (OC4) */ + { 1, 4, 0x0040 }, /* P10: internal USB 2.0 (OC4) */ + { 1, 4, 0x0040 }, /* P11: internal USB 2.0 (OC4) */ + { 1, 4, 0x0040 }, /* P12: internal USB 2.0 (OC4) */ + { 1, 4, 0x0040 }, /* P13: internal USB 2.0 (OC4) */ + }, + usb3: { + mode: 3, /* Smart Auto? */ + hs_port_switch_mask: 0xf, /* All four ports. */ + preboot_support: 1, /* preOS driver? */ + xhci_streams: 1, /* Enable. */ + }, + pcie_init: 1, + }; + +#if CONFIG_COLLECT_TIMESTAMPS + start_romstage_time = rdtsc(); +#endif + + 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(&ktqm77_gpio_map); + superio_gpio_config(); + + /* Initialize console device(s) */ + console_init(); + + /* Halt if there was a built in self test failure */ + report_bist_failure(bist); + + if (MCHBAR16(SSKPD) == 0xCAFE) { + printk(BIOS_DEBUG, "soft reset detected\n"); + boot_mode = 1; + + /* System is not happy after keyboard reset... */ + printk(BIOS_DEBUG, "Issuing CF9 warm reset\n"); + outb(0x6, 0xcf9); + hlt(); + } + + /* 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"); + + /* Enable PEG10 (1x16) */ + pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, + pci_read_config32(PCI_DEV(0, 0, 0), DEVEN) | + DEVEN_PEG10); + + /* 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; +#if CONFIG_COLLECT_TIMESTAMPS + before_dram_time = rdtsc(); +#endif + sdram_initialize(&pei_data); + +#if CONFIG_COLLECT_TIMESTAMPS + after_dram_time = rdtsc(); +#endif + post_code(0x3c); + + rcba_config(); + post_code(0x3d); + + quick_ram_check(); + post_code(0x3e); + + MCHBAR16(SSKPD) = 0xCAFE; + cbmem_was_initted = !cbmem_initialize(); + +#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); +#if CONFIG_COLLECT_TIMESTAMPS + timestamp_init(base_time); + timestamp_add(TS_START_ROMSTAGE, start_romstage_time ); + timestamp_add(TS_BEFORE_INITRAM, before_dram_time ); + timestamp_add(TS_AFTER_INITRAM, after_dram_time ); + timestamp_add_now(TS_END_ROMSTAGE); +#endif +#if CONFIG_CONSOLE_CBMEM + /* Keep this the last thing this function does. */ + cbmemc_reinit(); +#endif +} |