diff options
Diffstat (limited to 'src/mainboard/lenovo/t60/romstage.c')
| -rw-r--r-- | src/mainboard/lenovo/t60/romstage.c | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/t60/romstage.c b/src/mainboard/lenovo/t60/romstage.c new file mode 100644 index 0000000000..ff26698740 --- /dev/null +++ b/src/mainboard/lenovo/t60/romstage.c @@ -0,0 +1,342 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * Copyright (C) 2011 Sven Schnelle <svens@stackframe.org> + * + * 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 + */ + +// __PRE_RAM__ means: use "unsigned" for device, not a struct. + +#include <stdint.h> +#include <string.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include <device/pci_def.h> +#include <device/pnp_def.h> +#include <cpu/x86/lapic.h> +#include <lib.h> +#include <pc80/mc146818rtc.h> +#include <console/console.h> +#include <usbdebug.h> +#include <cpu/x86/bist.h> +#include "northbridge/intel/i945/i945.h" +#include "northbridge/intel/i945/raminit.h" +#include "southbridge/intel/i82801gx/i82801gx.h" +#include "dock.h" + +void setup_ich7_gpios(void) +{ + printk(BIOS_DEBUG, " GPIOS..."); + + /* T60 GPIO: + 6: LEGACYIO# + 7: BDC_PRESENCE# + 8: H8_WAKE# + 10: MDI_DETECT + 12: H8SCI# + 14: CPUSB# + 15: CPPE# + 25: MDC_KILL# + 27: EXC_PWR_CTRL + 28: EXC_AUX_CTRL + 35: CLKREQ_SATA# + 36: PLANARID0 + 37: PLANARID1 + 38: PLANARID2 + 39: PLANARID3 + */ + outl(0x1f48f7c2, DEFAULT_GPIOBASE + 0x00); /* GPIO_USE_SEL */ + outl(0xe0e0ffc3, DEFAULT_GPIOBASE + 0x04); /* GP_IO_SEL */ + outl(0xfbfefb7d, DEFAULT_GPIOBASE + 0x0c); /* GP_LVL */ + /* Output Control Registers */ + outl(0x00040000, DEFAULT_GPIOBASE + 0x18); /* GPO_BLINK */ + /* Input Control Registers */ + outl(0x000039ff, DEFAULT_GPIOBASE + 0x2c); /* GPI_INV */ + outl(0x000100f0, DEFAULT_GPIOBASE + 0x30); /* GPIO_USE_SEL2 */ + outl(0x000000f1, DEFAULT_GPIOBASE + 0x34); /* GP_IO_SEL2 */ + outl(0x000300a3, DEFAULT_GPIOBASE + 0x38); /* GP_LVL2 */ +} + +static void ich7_enable_lpc(void) +{ + // Enable Serial IRQ + pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x64, 0xd0); + // decode range + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0210); + // decode range + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x1f0d); + + /* range 0x1600 - 0x167f */ + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x84, 0x1601); + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x86, 0x007c); + + /* range 0x15e0 - 0x10ef */ + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x88, 0x15e1); + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x8a, 0x000c); + + /* range 0x1680 - 0x169f */ + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x8c, 0x1681); + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x8e, 0x001c); +} + +static void early_superio_config(void) +{ + int timeout = 100000; + device_t dev = PNP_DEV(0x2e, 3); + + pnp_write_config(dev, 0x29, 0xa0); + + while(!(pnp_read_config(dev, 0x29) & 0x10) && timeout--) + udelay(1000); + + /* Enable COM1 */ + pnp_set_logical_device(dev); + pnp_set_iobase(dev, PNP_IDX_IO0, 0x3f8); + pnp_set_enable(dev, 1); +} + +static void rcba_config(void) +{ + /* Set up virtual channel 0 */ + RCBA32(0x0014) = 0x80000001; + RCBA32(0x001c) = 0x03128010; + + /* Device 1f interrupt pin register */ + RCBA32(0x3100) = 0x00001230; + RCBA32(0x3108) = 0x40004321; + + /* PCIe Interrupts */ + RCBA32(0x310c) = 0x00004321; + /* HD Audio Interrupt */ + RCBA32(0x3110) = 0x00000002; + + /* dev irq route register */ + RCBA16(0x3140) = 0x1007; + RCBA16(0x3142) = 0x0076; + RCBA16(0x3144) = 0x3210; + RCBA16(0x3146) = 0x7654; + RCBA16(0x3148) = 0x0010; + + /* Enable IOAPIC */ + RCBA8(0x31ff) = 0x03; + + /* Enable upper 128bytes of CMOS */ + RCBA32(0x3400) = (1 << 2); + + /* Disable unused devices */ + RCBA32(0x3418) = FD_PCIE6 | FD_PCIE5 | FD_INTLAN | FD_ACMOD | FD_ACAUD; + RCBA32(0x3418) |= (1 << 0); // Required. + + /* Set up I/O Trap #0 for 0xfe00 (SMIC) */ + RCBA32(0x1e84) = 0x00020001; + RCBA32(0x1e80) = 0x0000fe01; + + /* Set up I/O Trap #3 for 0x800-0x80c (Trap) */ + RCBA32(0x1e9c) = 0x000200f0; + RCBA32(0x1e98) = 0x000c0801; +} + +static void early_ich7_init(void) +{ + uint8_t reg8; + uint32_t reg32; + + // program secondary mlt XXX byte? + pci_write_config8(PCI_DEV(0, 0x1e, 0), 0x1b, 0x20); + + // reset rtc power status + reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa4); + reg8 &= ~(1 << 2); + pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa4, reg8); + + // usb transient disconnect + reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xad); + reg8 |= (3 << 0); + pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xad, reg8); + + reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xfc); + reg32 |= (1 << 29) | (1 << 17); + pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xfc, reg32); + + reg32 = pci_read_config32(PCI_DEV(0, 0x1d, 7), 0xdc); + reg32 |= (1 << 31) | (1 << 27); + pci_write_config32(PCI_DEV(0, 0x1d, 7), 0xdc, reg32); + + RCBA32(0x0088) = 0x0011d000; + RCBA16(0x01fc) = 0x060f; + RCBA32(0x01f4) = 0x86000040; + RCBA32(0x0214) = 0x10030549; + RCBA32(0x0218) = 0x00020504; + RCBA8(0x0220) = 0xc5; + reg32 = RCBA32(0x3410); + reg32 |= (1 << 6); + RCBA32(0x3410) = reg32; + reg32 = RCBA32(0x3430); + reg32 &= ~(3 << 0); + reg32 |= (1 << 0); + RCBA32(0x3430) = reg32; + RCBA32(0x3418) |= (1 << 0); + RCBA16(0x0200) = 0x2008; + RCBA8(0x2027) = 0x0d; + RCBA16(0x3e08) |= (1 << 7); + RCBA16(0x3e48) |= (1 << 7); + RCBA32(0x3e0e) |= (1 << 7); + RCBA32(0x3e4e) |= (1 << 7); + + // next step only on ich7m b0 and later: + reg32 = RCBA32(0x2034); + reg32 &= ~(0x0f << 16); + reg32 |= (5 << 16); + RCBA32(0x2034) = reg32; +} + +#include <cbmem.h> + +void main(unsigned long bist) +{ + u32 reg32; + int boot_mode = 0; + const u8 spd_addrmap[2 * DIMM_SOCKETS] = { 0x50, 0x52, 0x51, 0x53 }; + + if (bist == 0) + enable_lapic(); + + /* Force PCIRST# */ + pci_write_config16(PCI_DEV(0, 0x1e, 0), BCTRL, SBR); + udelay(200 * 1000); + pci_write_config16(PCI_DEV(0, 0x1e, 0), BCTRL, 0); + + ich7_enable_lpc(); + + + /* dock_init initializes the DLPC switch on + * thinpad side, so this is required even + * if we're undocked. + */ + if (!dlpc_init() && dock_present()) { + dock_connect(); + early_superio_config(); + /* Set up the console */ + uart_init(); + } + +#if CONFIG_USBDEBUG + i82801gx_enable_usbdebug(1); + early_usbdebug_init(); +#endif + + 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, rebooting properly\n"); + outb(0x6, 0xcf9); + while (1) asm("hlt"); + } + + /* Perform some early chipset initialization required + * before RAM initialization can work + */ + i945_early_initialization(); + + /* Read PM1_CNT */ + reg32 = inl(DEFAULT_PMBASE + 0x04); + printk(BIOS_DEBUG, "PM1_CNT: %08x\n", reg32); + if (((reg32 >> 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(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); + +#else + printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n"); +#endif + } + + /* Enable SPD ROMs and DDR-II DRAM */ + enable_smbus(); + +#if CONFIG_DEFAULT_CONSOLE_LOGLEVEL > 8 + dump_spd_registers(); +#endif + + sdram_initialize(boot_mode, spd_addrmap); + + /* Perform some initialization that must run before stage2 */ + early_ich7_init(); + + /* This should probably go away. Until now it is required + * and mainboard specific + */ + rcba_config(); + + /* Chipset Errata! */ + fixup_i945_errata(); + + /* Initialize the internal PCIe links before we go into stage2 */ + i945_late_initialization(); + +#if !CONFIG_HAVE_ACPI_RESUME +#if CONFIG_DEFAULT_CONSOLE_LOGLEVEL > 8 +#if CONFIG_DEBUG_RAM_SETUP + sdram_dump_mchbar_registers(); + + { + /* This will not work if TSEG is in place! */ + u32 tom = pci_read_config32(PCI_DEV(0,2,0), 0x5c); + + printk(BIOS_DEBUG, "TOM: 0x%08x\n", tom); + ram_check(0x00000000, 0x000a0000); + ram_check(0x00100000, tom); + } +#endif +#endif +#endif + + MCHBAR16(SSKPD) = 0xCAFE; + +#if CONFIG_HAVE_ACPI_RESUME + /* Start address of high memory tables */ + unsigned long high_ram_base = get_top_of_ram() - HIGH_MEMORY_SIZE; + + /* 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. + */ + if ((boot_mode == 2) && cbmem_reinit((u64)high_ram_base)) { + void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME); + + /* copy 1MB - 64K to high tables ram_base to prevent memory corruption + * through stage 2. We could keep stuff like stack and heap in high tables + * memory completely, but that's a wonderful clean up task for another + * day. + */ + if (resume_backup_memory) + memcpy(resume_backup_memory, (void *)CONFIG_RAMBASE, HIGH_MEMORY_SAVE); + + /* Magic for S3 resume */ + pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafed00d); + } +#endif + /* Set legacy Brightness control to full brightness */ + pci_write_config8(PCI_DEV(0, 2, 1), 0xf4, 0xff); +} |