diff options
Diffstat (limited to 'src/mainboard/kontron/kt690/mainboard.c')
| -rw-r--r-- | src/mainboard/kontron/kt690/mainboard.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/src/mainboard/kontron/kt690/mainboard.c b/src/mainboard/kontron/kt690/mainboard.c new file mode 100644 index 0000000000..da5cd0402e --- /dev/null +++ b/src/mainboard/kontron/kt690/mainboard.c @@ -0,0 +1,257 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * 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 <console/console.h> +#include <device/device.h> +#include <device/pci.h> +#include <arch/io.h> +#include <boot/coreboot_tables.h> +#include <cpu/x86/msr.h> +#include <cpu/amd/mtrr.h> +#include <device/pci_def.h> +#include <../southbridge/amd/sb600/sb600.h> +#include "chip.h" + +#define ADT7461_ADDRESS 0x4C +#define ARA_ADDRESS 0x0C /* Alert Response Address */ +#define SMBUS_IO_BASE 0x1000 + +extern int do_smbus_read_byte(u32 smbus_io_base, u32 device, u32 address); +extern int do_smbus_write_byte(u32 smbus_io_base, u32 device, u32 address, + u8 val); +extern void lb_add_memory_range(struct lb_memory *mem, uint32_t type, + uint64_t start, uint64_t size); +#define ADT7461_read_byte(address) \ + do_smbus_read_byte(SMBUS_IO_BASE, ADT7461_ADDRESS, address) +#define ARA_read_byte(address) \ + do_smbus_read_byte(SMBUS_IO_BASE, ARA_ADDRESS, address) +#define ADT7461_write_byte(address, val) \ + do_smbus_write_byte(SMBUS_IO_BASE, ADT7461_ADDRESS, address, val) + +uint64_t uma_memory_base, uma_memory_size; + +/******************************************************** +* dbm690t uses a BCM5789 as on-board NIC. +* It has a pin named LOW_POWER to enable it into LOW POWER state. +* In order to run NIC, we should let it out of Low power state. This pin is +* controlled by sb600 GPM3. +* RRG4.2.3 GPM as GPIO +* GPM pins can be used as GPIO. The GPM I/O functions is controlled by three registers: +* I/O C50, C51, C52, PM I/O94, 95, 96. +* RRG4.2.3.1 GPM pins as Input +* RRG4.2.3.2 GPM pins as Output +********************************************************/ +static void enable_onboard_nic() +{ + u8 byte; + + printk_info("%s.\n", __func__); + + /* set index register 0C50h to 13h (miscellaneous control) */ + outb(0x13, 0xC50); /* CMIndex */ + + /* set CM data register 0C51h bits [7:6] to 01b to set Input/Out control */ + byte = inb(0xC51); + byte &= 0x3F; + byte |= 0x40; + outb(byte, 0xC51); + + /* set GPM port 0C52h bit 3 to 0 to enable output for GPM3 */ + byte = inb(0xC52); + byte &= ~0x8; + outb(byte, 0xC52); + + /* set CM data register 0C51h bits [7:6] to 10b to set Output state control */ + byte = inb(0xC51); + byte &= 0x3F; + byte |= 0x80; /* 7:6=10 */ + outb(byte, 0xC51); + + /* set GPM port 0C52h bit 3 to 0 to output 0 on GPM3 */ + byte = inb(0xC52); + byte &= ~0x8; + outb(byte, 0xC52); +} + +/******************************************************** +* dbm690t uses SB600 GPIO9 to detect IDE_DMA66. +* IDE_DMA66 is routed to GPIO 9. So we read Gpio 9 to +* get the cable type, 40 pin or 80 pin? +********************************************************/ +static void get_ide_dma66() +{ + u8 byte; + struct device *sm_dev; + struct device *ide_dev; + + printk_info("%s.\n", __func__); + sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); + + byte = pci_read_config8(sm_dev, 0xA9); + byte |= (1 << 5); /* Set Gpio9 as input */ + pci_write_config8(sm_dev, 0xA9, byte); + + ide_dev = dev_find_slot(0, PCI_DEVFN(0x14, 1)); + byte = pci_read_config8(ide_dev, 0x56); + byte &= ~(7 << 0); + if ((1 << 5) & pci_read_config8(sm_dev, 0xAA)) + byte |= 2 << 0; /* mode 2 */ + else + byte |= 5 << 0; /* mode 5 */ + pci_write_config8(ide_dev, 0x56, byte); +} + +/* + * set thermal config + */ +static void set_thermal_config() +{ + u8 byte; + u16 word; + device_t sm_dev; + + /* set ADT 7461 */ + ADT7461_write_byte(0x0B, 0x50); /* Local Temperature Hight limit */ + ADT7461_write_byte(0x0C, 0x00); /* Local Temperature Low limit */ + ADT7461_write_byte(0x0D, 0x50); /* External Temperature Hight limit High Byte */ + ADT7461_write_byte(0x0E, 0x00); /* External Temperature Low limit High Byte */ + + ADT7461_write_byte(0x19, 0x55); /* External THERM limit */ + ADT7461_write_byte(0x20, 0x55); /* Local THERM limit */ + + byte = ADT7461_read_byte(0x02); /* read status register to clear it */ + ARA_read_byte(0x05); /* A hardware alert can only be cleared by the master sending an ARA as a read command */ + printk_info("Init adt7461 end , status 0x02 %02x\n", byte); + + /* sb600 settings for thermal config */ + /* set SB600 GPIO 64 to GPIO with pull-up */ + byte = pm2_ioread(0x42); + byte &= 0x3f; + pm2_iowrite(0x42, byte); + + /* set GPIO 64 to input */ + sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); + word = pci_read_config16(sm_dev, 0x56); + word |= 1 << 7; + pci_write_config16(sm_dev, 0x56, word); + + /* set GPIO 64 internal pull-up */ + byte = pm2_ioread(0xf0); + byte &= 0xee; + pm2_iowrite(0xf0, byte); + + /* set Talert to be active low */ + byte = pm_ioread(0x67); + byte &= ~(1 << 5); + pm_iowrite(0x67, byte); + + /* set Talert to generate ACPI event */ + byte = pm_ioread(0x3c); + byte &= 0xf3; + pm_iowrite(0x3c, byte); + + /* THERMTRIP pin */ + /* byte = pm_ioread(0x68); + * byte |= 1 << 3; + * pm_iowrite(0x68, byte); + * + * byte = pm_ioread(0x55); + * byte |= 1 << 0; + * pm_iowrite(0x55, byte); + * + * byte = pm_ioread(0x67); + * byte &= ~( 1 << 6); + * pm_iowrite(0x67, byte); + */ +} + +/************************************************* +* enable the dedicated function in dbm690t board. +* This function called early than rs690_enable. +*************************************************/ +void kt690_enable(device_t dev) +{ + struct mainboard_config *mainboard = + (struct mainboard_config *)dev->chip_info; + + printk_info("Mainboard KT690 Enable. dev=0x%p\n", dev); + +#if (CONFIG_GFXUMA == 1) + msr_t msr, msr2; + + /* TOP_MEM: the top of DRAM below 4G */ + msr = rdmsr(TOP_MEM); + printk_info("%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n", + __func__, msr.lo, msr.hi); + + /* TOP_MEM2: the top of DRAM above 4G */ + msr2 = rdmsr(TOP_MEM2); + printk_info("%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n", + __func__, msr2.lo, msr2.hi); + + switch (msr.lo) { + case 0x10000000: /* 256M system memory */ + uma_memory_size = 0x2000000; /* 32M recommended UMA */ + break; + + case 0x18000000: /* 384M system memory */ + uma_memory_size = 0x4000000; /* 64M recommended UMA */ + break; + + case 0x20000000: /* 512M system memory */ + uma_memory_size = 0x4000000; /* 64M recommended UMA */ + break; + + default: /* 1GB and above system memory */ + uma_memory_size = 0x8000000; /* 128M recommended UMA */ + break; + } + + uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */ + printk_info("%s: uma size 0x%08llx, memory start 0x%08llx\n", + __func__, uma_memory_size, uma_memory_base); + + /* TODO: TOP_MEM2 */ +#else + uma_memory_size = 0x8000000; /* 128M recommended UMA */ + uma_memory_base = 0x38000000; /* 1GB system memory supposed */ +#endif + + enable_onboard_nic(); + get_ide_dma66(); + set_thermal_config(); +} + +int add_mainboard_resources(struct lb_memory *mem) +{ + /* UMA is removed from system memory in the northbridge code, but + * in some circumstances we want the memory mentioned as reserved. + */ +#if (CONFIG_GFXUMA == 1) + printk_info("uma_memory_base=0x%llx, uma_memory_size=0x%llx \n", + uma_memory_base, uma_memory_size); + lb_add_memory_range(mem, LB_MEM_RESERVED, + uma_memory_base, uma_memory_size); +#endif +} + +struct chip_operations mainboard_ops = { + CHIP_NAME("Kontron KT690/mITX Mainboard") + .enable_dev = kt690_enable, +}; |