mainboard/lenovo: add Lenovo Z61t laptop

This platform shares most hardware components with first-gen Core
Lenovo laptops such as T60/X60, with much smaller EEPROM size as
one of notable differences. The port features Intel graphics,
ATI-based version should work with vendor VBIOS.

Tested peripherals:
 - sleep/resume,
 - USB ports,
 - ACPI Fn key bindings/volume buttons,
 - backlight control,
 - ethernet,
 - wireless (under Linux),
 - sound/beep,
 - dock handling,
 - serial via dock.

Untested peripherals:
 - IrDA,
 - parallel port,
 - PCMCIA,
 - S-Video port,
 - modem,
 - FP reader (should just work),
 - IEEE1394.

Linux 3.16 works with native gfxinit perfectly, with Intel VBIOS
console sometimes displays nothing when i915 framebuffer is used.

Windows 7 has an interrupt assignment issue with iw3945, otherwise
tested stuff is fine.

Change-Id: I84c89cc47d3db126d827f92d50270954bc42f224
Signed-off-by: Andrey Korolyov <andrey@xdel.ru>
Reviewed-on: https://review.coreboot.org/21019
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

1 files changed, 246 insertions, 0 deletions

diff --git a/src/mainboard/lenovo/z61t/romstage.c b/src/mainboard/lenovo/z61t/romstage.c
new file mode 100644
index 0000000000..0b04f863fc
--- /dev/null
+++ b/src/mainboard/lenovo/z61t/romstage.c
@@ -0,0 +1,246 @@
+/*
+ * 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.
+ */
+
+// __PRE_RAM__ means: use "unsigned" for device, not a struct.
+
+#include <stdint.h>
+#include <string.h>
+#include <arch/io.h>
+#include <device/pci_def.h>
+#include <device/pnp_def.h>
+#include <cpu/x86/lapic.h>
+#include <lib.h>
+#include <arch/acpi.h>
+#include <cbmem.h>
+#include <timestamp.h>
+#include <pc80/mc146818rtc.h>
+#include <console/console.h>
+#include <cpu/x86/bist.h>
+#include <cpu/intel/romstage.h>
+#include <halt.h>
+#include <northbridge/intel/i945/i945.h>
+#include <northbridge/intel/i945/raminit.h>
+#include <southbridge/intel/i82801gx/i82801gx.h>
+#include <southbridge/intel/common/gpio.h>
+#include "dock.h"
+
+static void ich7_enable_lpc(void)
+{
+	// Enable Serial IRQ
+	pci_write_config8(PCI_DEV(0, 0x1f, 0), SERIRQ_CNTL, 0xd0);
+	// decode range
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), LPC_IO_DEC, 0x0210);
+	// decode range
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), LPC_EN, 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;
+	pnp_devfn_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(V0CTL) = 0x80000001;
+	RCBA32(V1CAP) = 0x03128010;
+
+	/* Device 1f interrupt pin register */
+	RCBA32(D31IP) = 0x00001230;
+	RCBA32(D29IP) = 0x40004321;
+
+	/* PCIe Interrupts */
+	RCBA32(D28IP) = 0x00004321;
+	/* HD Audio Interrupt */
+	RCBA32(D27IP) = 0x00000002;
+
+	/* dev irq route register */
+	RCBA16(D31IR) = 0x1007;
+	RCBA16(D30IR) = 0x0076;
+	RCBA16(D29IR) = 0x3210;
+	RCBA16(D28IR) = 0x7654;
+	RCBA16(D27IR) = 0x0010;
+
+	/* Enable IOAPIC */
+	RCBA8(OIC) = 0x03;
+
+	/* Disable unused devices */
+	RCBA32(FD) = FD_PCIE6 | FD_PCIE5 | FD_INTLAN | FD_ACMOD | FD_ACAUD | FD_PATA;
+	RCBA32(FD) |= (1 << 0); // Required.
+
+	/* Set up I/O Trap #0 for 0xfe00 (SMIC) */
+	RCBA32(0x1e84) = 0x00020001;
+	RCBA32(IOTR0) = 0x0000fe01;
+
+	/* Set up I/O Trap #3 for 0x800-0x80c (Trap) */
+	RCBA32(0x1e9c) = 0x000200f0;
+	RCBA32(IOTR3) = 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(GCS) = reg32;
+	reg32 = RCBA32(0x3430);
+	reg32 &= ~(3 << 0);
+	reg32 |= (1 << 0);
+	RCBA32(0x3430) = reg32;
+	RCBA32(FD) |= (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;
+}
+
+void mainboard_romstage_entry(unsigned long bist)
+{
+	int s3resume = 0;
+	int dock_err;
+	const u8 spd_addrmap[2 * DIMM_SOCKETS] = { 0x50, 0, 0x51, 0 };
+
+
+	timestamp_init(get_initial_timestamp());
+	timestamp_add_now(TS_START_ROMSTAGE);
+
+	if (bist == 0)
+		enable_lapic();
+
+	ich7_enable_lpc();
+
+	/* We want early GPIO setup, to be able to detect legacy I/O module */
+	pci_write_config32(PCI_DEV(0, 0x1f, 0), GPIOBASE, DEFAULT_GPIOBASE | 1);
+	/* Enable GPIOs */
+	pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x4c /* GC */ , 0x10);
+	setup_pch_gpios(&mainboard_gpio_map);
+
+	dock_err = dlpc_init();
+
+	/* We prefer Legacy I/O module over docking */
+	if (legacy_io_present()) {
+		legacy_io_init();
+		early_superio_config();
+	} else if (!dock_err && dock_present()) {
+		dock_connect();
+		early_superio_config();
+	}
+
+	/* Setup the console */
+	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);
+		halt();
+	}
+
+	/* Perform some early chipset initialization required
+	 * before RAM initialization can work
+	 */
+	i945_early_initialization();
+
+	s3resume = southbridge_detect_s3_resume();
+
+	/* Enable SPD ROMs and DDR-II DRAM */
+	enable_smbus();
+
+#if CONFIG_DEFAULT_CONSOLE_LOGLEVEL > 8
+	dump_spd_registers();
+#endif
+
+	timestamp_add_now(TS_BEFORE_INITRAM);
+	sdram_initialize(s3resume ? 2 : 0, spd_addrmap);
+	timestamp_add_now(TS_AFTER_INITRAM);
+
+	/* 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(s3resume);
+}