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/*
* 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/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);
#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;
/***************************************************
* This board, the TIM-8690 has two Marvel 88e5056 PCI-E
* 10/100/1000 chips on board.
* Both of their pin PERSTn pins are connected to GPIO 5 of the
* SB600 southbridge.
****************************************************/
static void enable_onboard_nic(void)
{
u8 byte;
device_t sm_dev;
printk(BIOS_INFO, "enable_onboard_nic.\n");
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
byte = pci_read_config8(sm_dev, 0x9a);
byte |= ( 1 << 7);
pci_write_config8(sm_dev, 0x9a, byte);
byte=pm_ioread(0x59);
byte &= ~( 1<< 5);
pm_iowrite(0x59,byte);
byte = pci_read_config8(sm_dev, 0xA8);
byte |= (1 << 1); //set bit 1 to high
pci_write_config8(sm_dev, 0xA8, byte);
}
/* set thermal config
*/
static void set_thermal_config(void)
{
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(BIOS_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 tim8690 board.
* This function called early than rs690_enable.
*************************************************/
static void tim8690_enable(device_t dev)
{
printk(BIOS_INFO, "Mainboard tim8690 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(BIOS_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(BIOS_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(BIOS_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();
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(BIOS_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
return 0;
}
struct chip_operations mainboard_ops = {
CHIP_NAME("TechNexion TIM-8690 Mainboard")
.enable_dev = tim8690_enable,
};
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