Support for the Kontron 986LCD-M mainboard series.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>




git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3704 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 364 insertions, 0 deletions

diff --git a/src/mainboard/kontron/986lcd-m/auto.c b/src/mainboard/kontron/986lcd-m/auto.c
new file mode 100644
index 0000000000..c708f1ae15
--- /dev/null
+++ b/src/mainboard/kontron/986lcd-m/auto.c
@@ -0,0 +1,364 @@
+/*
+ * This file is part of the coreboot project.
+ * 
+ * Copyright (C) 2007-2008 coresystems GmbH
+ *
+ * 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
+ */
+
+// __ROMCC__ means: use "unsigned" for device, not a struct.
+#define __ROMCC__ 
+
+#include <stdint.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 "superio/winbond/w83627thg/w83627thg.h"
+
+#include "option_table.h"
+#include "pc80/mc146818rtc_early.c"
+
+#include "pc80/serial.c"
+#include "arch/i386/lib/console.c"
+#include <cpu/x86/bist.h>
+
+#include "ram/ramtest.c"
+#include "southbridge/intel/i82801gx/i82801gx_early_smbus.c"
+#include "reset.c"
+#include "superio/winbond/w83627thg/w83627thg_early_serial.c"
+
+#include "northbridge/intel/i945/udelay.c"
+
+#if CONFIG_USE_INIT == 0
+#include "lib/memcpy.c"
+#endif
+
+#define SERIAL_DEV PNP_DEV(0x2e, W83627THG_SP1)
+
+#include "northbridge/intel/i945/ich7.h"
+static void setup_ich7_gpios(void)
+{
+	/* TODO: This is highly board specific and should be moved */
+	printk_debug(" GPIOS...");
+	/* General Registers */
+	outl(0x1f1ff7c0, DEFAULT_GPIOBASE + 0x00);	/* GPIO_USE_SEL */
+	outl(0xe0e8efc3, DEFAULT_GPIOBASE + 0x04);	/* GP_IO_SEL */
+	outl(0xebffeeff, DEFAULT_GPIOBASE + 0x0c);	/* GP_LVL */
+	/* Output Control Registers */
+	outl(0x00000000, DEFAULT_GPIOBASE + 0x18);	/* GPO_BLINK */
+	/* Input Control Registers */
+	outl(0x00002180, DEFAULT_GPIOBASE + 0x2c);	/* GPI_INV */
+	outl(0x000000ff, DEFAULT_GPIOBASE + 0x30);	/* GPIO_USE_SEL2 */
+	outl(0x00000030, DEFAULT_GPIOBASE + 0x34);	/* GP_IO_SEL2 */
+	outl(0x00010035, DEFAULT_GPIOBASE + 0x38);	/* GP_LVL */
+}
+
+#include "northbridge/intel/i945/early_init.c"
+
+static inline int spd_read_byte(unsigned device, unsigned address)
+{
+	return smbus_read_byte(device, address);
+}
+
+/* Usually system firmware turns off system memory clock signals to 
+ * unused SO-DIMM slots to reduce EMI and power consumption.
+ * However, the Kontron 986LCD-M does not like unused clock signals to
+ * be disabled. If other similar mainboard occur, it would make sense
+ * to make this an entry in the sysinfo structure, and pre-initialize that
+ * structure in the mainboard's auto.c main() function. For now a
+ * #define will do.
+ */
+#define OVERRIDE_CLOCK_DISABLE 1
+#include "northbridge/intel/i945/raminit.h"
+#include "northbridge/intel/i945/raminit.c"
+#include "northbridge/intel/i945/reset_test.c"
+#include "northbridge/intel/i945/errata.c"
+#include "debug.c"
+
+static void ich7_enable_lpc(void)
+{
+	// Enable Serial IRQ
+	pci_write_config8(PCI_DEV(0, 0x1f, 0), 0x64, 0xd0);
+	// Set COM1/COM2 decode range
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0010);
+	// Enable COM1/COM2/KBD/SuperIO1+2
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x340b);
+	// Enable HWM at 0xa00
+	pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x84, 0x0a01);
+	// COM3 decode
+	pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x88, 0x000403e9);
+	// COM4 decode
+	pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x8c, 0x000402e9);
+	// io 0x300 decode 
+	pci_write_config32(PCI_DEV(0, 0x1f, 0), 0x90, 0x00000301);
+}
+
+
+/* This box has two superios, so enabling serial becomes slightly excessive.
+ * We disable a lot of stuff to make sure that there are no conflicts between
+ * the two. Also set up the GPIOs from the beginning. This is the "no schematic
+ * but safe anyways" method.
+ */
+static void early_superio_config_w83627thg(void)
+{
+	device_t dev;
+	
+	dev=PNP_DEV(0x2e, W83627THG_SP1);
+	pnp_enter_ext_func_mode(dev);
+
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, 0x3f8);
+	pnp_set_irq(dev, PNP_IDX_IRQ0, 4);
+	pnp_set_enable(dev, 1);
+
+	dev=PNP_DEV(0x2e, W83627THG_SP2);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, 0x2f8);
+	pnp_set_irq(dev, PNP_IDX_IRQ0, 3);
+	// pnp_write_config(dev, 0xf1, 4); // IRMODE0
+	pnp_set_enable(dev, 1);
+
+	dev=PNP_DEV(0x2e, W83627THG_KBC);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, 0x60);
+	pnp_set_iobase(dev, PNP_IDX_IO1, 0x64);
+	// pnp_write_config(dev, 0xf0, 0x82);
+	pnp_set_enable(dev, 1);
+
+	dev=PNP_DEV(0x2e, W83627THG_GAME_MIDI_GPIO1);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_write_config(dev, 0xf5, 0xff); // invert all GPIOs
+	pnp_set_enable(dev, 1);
+
+	dev=PNP_DEV(0x2e, W83627THG_GPIO2);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 1); // Just enable it
+
+	dev=PNP_DEV(0x2e, W83627THG_GPIO3);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_write_config(dev, 0xf0, 0xfb); // GPIO bit 2 is output
+	pnp_write_config(dev, 0xf1, 0x00); // GPIO bit 2 is 0
+	pnp_write_config(dev, 0x30, 0x03); // Enable GPIO3+4. pnp_set_enable is not sufficient
+
+	dev=PNP_DEV(0x2e, W83627THG_FDC);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+
+	dev=PNP_DEV(0x2e, W83627THG_PP);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+
+	pnp_exit_ext_func_mode(dev);
+
+	dev=PNP_DEV(0x4e, W83627THG_SP1);
+	pnp_enter_ext_func_mode(dev);
+
+	pnp_set_logical_device(dev); // Set COM3 to sane non-conflicting values
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, 0x3e8);
+	pnp_set_irq(dev, PNP_IDX_IRQ0, 11);
+	pnp_set_enable(dev, 1);
+
+	dev=PNP_DEV(0x4e, W83627THG_SP2); 
+	pnp_set_logical_device(dev); // Set COM4 to sane non-conflicting values
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, 0x2e8);
+	pnp_set_irq(dev, PNP_IDX_IRQ0, 10);
+	pnp_set_enable(dev, 1);
+
+	dev=PNP_DEV(0x4e, W83627THG_FDC);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+
+	dev=PNP_DEV(0x4e, W83627THG_PP);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+
+	dev=PNP_DEV(0x4e, W83627THG_KBC);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, 0x00);
+	pnp_set_iobase(dev, PNP_IDX_IO1, 0x00);
+
+	pnp_exit_ext_func_mode(dev);
+}
+
+static void rcba_config(void)
+{
+	/* Set up virtual channel 0 */
+	//RCBA32(0x0014) = 0x80000001;
+	//RCBA32(0x001c) = 0x03128010;
+
+	/* Device 1f interrupt pin register */
+	RCBA32(0x3100) = 0x00042210;
+	/* Device 1d interrupt pin register */
+	RCBA32(0x310c) = 0x00214321;
+
+	/* dev irq route register */
+	RCBA16(0x3140) = 0x0132;
+	RCBA16(0x3142) = 0x3241;
+	RCBA16(0x3144) = 0x0237;
+	RCBA16(0x3146) = 0x3210;
+	RCBA16(0x3148) = 0x3210;
+
+	/* Enable IOAPIC */
+	RCBA8(0x31ff) = 0x03;
+
+	/* Enable upper 128bytes of CMOS */
+	RCBA32(0x3400) = (1 << 2);
+
+	/* Disable unused devices */
+	RCBA32(0x3418) = 0x000e0063;
+
+	/* Enable PCIe Root Port Clock Gate */
+	// RCBA32(0x341c) = 0x00000001;
+}
+
+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;
+}
+
+#if USE_FALLBACK_IMAGE == 1
+#include "southbridge/intel/i82801gx/cmos_failover.c"
+#endif
+
+void real_main(unsigned long bist)
+{
+	int boot_mode = 0;
+
+	if (bist == 0) {
+		enable_lapic();
+	}
+
+	ich7_enable_lpc();
+	early_superio_config_w83627thg();
+
+	/* Set up the console */
+	uart_init();
+	console_init();
+
+	/* Halt if there was a built in self test failure */
+	report_bist_failure(bist);
+
+	if (MCHBAR16(SSKPD) == 0xCAFE) {
+		printk_debug("soft reset detected.\n");
+		boot_mode = 1;
+	}
+
+	/* Perform some early chipset initialization required
+	 * before RAM initialization can work
+	 */
+	i945_early_initialization();
+
+	/* Enable SPD ROMs and DDR-II DRAM */
+	enable_smbus();
+	
+#if DEFAULT_CONSOLE_LOGLEVEL > 8
+	dump_spd_registers();
+#endif
+
+	sdram_initialize(boot_mode);
+
+	/* 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 DEFAULT_CONSOLE_LOGLEVEL > 8
+#if defined(DEBUG_RAM_SETUP)
+	sdram_dump_mchbar_registers();
+#endif
+
+	{
+		/* This will not work if TSEG is in place! */
+		u32 tom = pci_read_config32(PCI_DEV(0,2,0), 0x5c);
+
+		printk_debug("TOM: 0x%08x\n", tom);
+		ram_check(0x00000000, 0x000a0000);
+		ram_check(0x00100000, tom);
+	}
+#endif
+	MCHBAR16(SSKPD) = 0xCAFE;
+}
+
+#include "cpu/intel/model_6ex/cache_as_ram_disable.c"