| /* |
| * 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) 2013 Sage Electronic Engineering, LLC. |
| * |
| * 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. |
| */ |
| |
| |
| #include <stdint.h> |
| #include <string.h> |
| #include <lib.h> |
| #include <timestamp.h> |
| #include <arch/io.h> |
| #include <cf9_reset.h> |
| #include <device/pci_def.h> |
| #include <device/pnp_def.h> |
| #include <cpu/x86/lapic.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include <halt.h> |
| #include <program_loading.h> |
| #include <superio/smsc/sio1007/chip.h> |
| #include <fsp_util.h> |
| #include <northbridge/intel/fsp_sandybridge/northbridge.h> |
| #include <northbridge/intel/fsp_sandybridge/raminit.h> |
| #include <southbridge/intel/fsp_bd82x6x/pch.h> |
| #include <southbridge/intel/fsp_bd82x6x/gpio.h> |
| #include <southbridge/intel/fsp_bd82x6x/me.h> |
| #include <arch/cpu.h> |
| #include "gpio.h" |
| |
| #define SIO_PORT 0x164e |
| |
| static void pch_enable_lpc(void) |
| { |
| pci_devfn_t dev = PCH_LPC_DEV; |
| |
| /* Set COM1/COM2 decode range */ |
| pci_write_config16(dev, LPC_IO_DEC, 0x0010); |
| |
| /* Enable SuperIO + PS/2 Keyboard/Mouse */ |
| u16 lpc_config = CNF1_LPC_EN | CNF2_LPC_EN | KBC_LPC_EN; |
| pci_write_config16(dev, LPC_EN, lpc_config); |
| |
| /* Map 256 bytes at 0x1600 to the LPC bus. */ |
| pci_write_config32(dev, LPC_GEN1_DEC, 0xfc1601); |
| |
| /* Map a range for the runtime registers to the LPC bus. */ |
| pci_write_config32(dev, LPC_GEN2_DEC, 0xc0181); |
| |
| if (sio1007_enable_uart_at(SIO_PORT)) { |
| pci_write_config16(dev, LPC_EN, |
| lpc_config | COMA_LPC_EN); |
| } |
| } |
| |
| static void setup_sio_gpios(void) |
| { |
| const u16 port = SIO_PORT; |
| const u16 runtime_port = 0x180; |
| |
| /* Turn on configuration mode. */ |
| outb(0x55, port); |
| |
| /* Set the GPIO direction, polarity, and type. */ |
| sio1007_setreg(port, 0x31, 1 << 0, 1 << 0); |
| sio1007_setreg(port, 0x32, 0 << 0, 1 << 0); |
| sio1007_setreg(port, 0x33, 0 << 0, 1 << 0); |
| |
| /* Set the base address for the runtime register block. */ |
| sio1007_setreg(port, 0x30, runtime_port >> 4, 0xff); |
| sio1007_setreg(port, 0x21, runtime_port >> 12, 0xff); |
| |
| /* Turn on address decoding for it. */ |
| sio1007_setreg(port, 0x3a, 1 << 1, 1 << 1); |
| |
| /* |
| * Enable the RS232 transiver. |
| * Set the value of GPIO 10 by changing GP1, bit 0. |
| */ |
| u8 byte; |
| byte = inb(runtime_port + 0xc); |
| byte |= (1 << 0); |
| outb(byte, runtime_port + 0xc); |
| |
| /* Turn off address decoding for it. */ |
| sio1007_setreg(port, 0x3a, 0 << 1, 1 << 1); |
| |
| /* Turn off configuration mode. */ |
| outb(0xaa, port); |
| } |
| |
| static void rcba_config(void) |
| { |
| u32 reg32; |
| |
| /* |
| * GFX INTA -> PIRQA (MSI) |
| * D31IP_SIP SATA INTB -> PIRQD |
| * D31IP_SMIP SMBUS INTC -> PIRQC |
| * D31IP_SIP SATA2 INTB -> PIRQD |
| * D31IP_TTIP THRT INTC -> PIRQC |
| * D29IP_E1P EHCI1 INTA -> PIRQD |
| * D28IP_P1IP INTA -> PIRQD |
| * D28IP_P2IP INTB -> PIRQC |
| * D28IP_P3IP INTC -> PIRQB |
| * D28IP_P4IP INTD -> PIRQA |
| * D28IP_P5IP INTA -> PIRQD |
| * D28IP_P6IP INTB -> PIRQC |
| * D28IP_P7IP INTC -> PIRQB |
| * D28IP_P8IP INTD -> PIRQA |
| * D27IP_ZIP HDA INTA -> PIRQD |
| * D26IP_E2P EHCI2 INTA -> PIRQD |
| * D20IP_XHCI XHCI INTA -> PIRQD (MSI) |
| */ |
| |
| /* Device interrupt pin register (board specific) */ |
| RCBA32(D31IP) = (INTC << D31IP_TTIP) | (INTB << D31IP_SIP2) | |
| (INTC << D31IP_SMIP) | (INTB << D31IP_SIP); |
| RCBA32(D29IP) = (INTA << D29IP_E1P); |
| RCBA32(D28IP) = (INTD << D28IP_P8IP) | (INTC << D28IP_P7IP) | |
| (INTB << D28IP_P6IP) | (INTA << D28IP_P5IP) | |
| (INTD << D28IP_P4IP) | (INTC << D28IP_P3IP) | |
| (INTB << D28IP_P2IP) | (INTA << D28IP_P1IP); |
| RCBA32(D27IP) = (INTA << D27IP_ZIP); |
| RCBA32(D26IP) = (INTA << D26IP_E2P); |
| RCBA32(D25IP) = (INTA << D25IP_LIP); |
| RCBA32(D22IP) = (INTB << D22IP_KTIP) | (INTC << D22IP_IDERIP) | |
| (INTB << D22IP_MEI2IP) | (INTA << 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, PIRQF, PIRQA, PIRQC, PIRQD); |
| DIR_ROUTE(D25IR, PIRQE, PIRQF, PIRQG, PIRQH); |
| DIR_ROUTE(D22IR, PIRQA, PIRQD, PIRQC, PIRQB); |
| DIR_ROUTE(D20IR, PIRQD, PIRQE, PIRQF, PIRQG); |
| |
| /* 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; |
| RCBA32(FD) = reg32; |
| } |
| |
| void main(FSP_INFO_HEADER *fsp_info_header) |
| { |
| #if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) |
| int boot_mode = 0; |
| #endif |
| u32 pm1_cnt; |
| u16 pm1_sts; |
| |
| post_code(0x40); |
| |
| timestamp_init(get_initial_timestamp()); |
| timestamp_add_now(TS_START_ROMSTAGE); |
| |
| 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(&gpio_map); |
| setup_sio_gpios(); |
| |
| console_init(); |
| post_code(0x41); |
| |
| post_code(0x42); |
| sandybridge_sb_early_initialization(); |
| |
| post_code(0x43); |
| sandybridge_early_initialization(SANDYBRIDGE_MOBILE); |
| printk(BIOS_DEBUG, "Back from sandybridge_early_initialization()\n"); |
| |
| post_code(0x44); |
| /* Wait for ME to be ready */ |
| intel_early_me_status(); |
| intel_early_me_init(); |
| intel_early_me_uma_size(); |
| |
| post_code(0x45); |
| /* 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); |
| post_code(0x46); |
| if ((pm1_sts & WAK_STS) && ((pm1_cnt >> 10) & 7) == 5) { |
| #if IS_ENABLED(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(0x48); |
| |
| timestamp_add_now(TS_BEFORE_INITRAM); |
| |
| /* |
| * Call early init to initialize memory and chipset. This function returns |
| * to the romstage_main_continue function with a pointer to the HOB |
| * structure. |
| */ |
| printk(BIOS_DEBUG, "Starting the Intel FSP (early_init)\n"); |
| fsp_early_init(fsp_info_header); |
| die("Uh Oh! fsp_early_init should not return here.\n"); |
| } |
| |
| /******************************************************************************* |
| * The FSP early_init function returns to this function. |
| * Memory is setup and the stack is set by the FSP. |
| ******************************************************************************/ |
| void romstage_main_continue(EFI_STATUS status, VOID *HobListPtr) { |
| int cbmem_was_initted; |
| u32 reg32; |
| void *cbmem_hob_ptr; |
| |
| timestamp_add_now(TS_AFTER_INITRAM); |
| |
| /* |
| * HD AUDIO is not used on this system, so we're using some registers |
| * in there as temporary registers to save TSC values. This is complete |
| * now, so disable the audio block. |
| */ |
| reg32 = RCBA32(FD); |
| reg32 |= PCH_DISABLE_HD_AUDIO; |
| RCBA32(FD) = reg32; |
| |
| post_code(0x49); |
| |
| #if IS_ENABLED(CONFIG_USBDEBUG) |
| /* FSP reconfigures USB, so reinit it to have debug */ |
| early_usbdebug_init(); |
| #endif |
| |
| /* For reference print FSP version */ |
| u32 version = MCHBAR32(0x5034); |
| printk(BIOS_DEBUG, "FSP Version %d.%d.%d Build %d\n", |
| version >> 24 , (version >> 16) & 0xff, |
| (version >> 8) & 0xff, version & 0xff); |
| printk(BIOS_DEBUG, "FSP Status: 0x%0x\n", (u32)status); |
| |
| intel_early_me_init_done(ME_INIT_STATUS_SUCCESS); |
| |
| printk(BIOS_SPEW, "FD & FD2 Settings:\n"); |
| display_fd_settings(); |
| |
| report_memory_config(); |
| |
| post_code(0x4b); |
| |
| early_pch_init(); |
| post_code(0x4c); |
| |
| rcba_config(); |
| post_code(0x4d); |
| |
| quick_ram_check(); |
| post_code(0x4e); |
| |
| cbmem_was_initted = !cbmem_recovery(0); |
| |
| if(cbmem_was_initted) { |
| system_reset(); |
| } |
| |
| /* Save the HOB pointer in CBMEM to be used in ramstage. */ |
| cbmem_hob_ptr = cbmem_add(CBMEM_ID_HOB_POINTER, sizeof(*HobListPtr)); |
| if (cbmem_hob_ptr == NULL) |
| die("Could not allocate cbmem for HOB pointer"); |
| *(u32*)cbmem_hob_ptr = (u32)HobListPtr; |
| post_code(0x4f); |
| |
| /* Load the ramstage. */ |
| run_ramstage(); |
| while (1); |
| } |
| |
| void romstage_fsp_rt_buffer_callback(FSP_INIT_RT_BUFFER *FspRtBuffer) |
| { |
| /* No overrides needed */ |
| return; |
| } |
| |
| uint64_t get_initial_timestamp(void) |
| { |
| return (uint64_t) pci_read_config32(PCI_DEV(0, 0x1f, 2), 0xd0) << 4; |
| } |