/* * 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 #include #include #include #include #include #include #include #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("enable_onboard_nic.\n"); /* 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; /*u32 sm_dev, ide_dev; */ device_t sm_dev, ide_dev; struct bus pbus; sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); byte = pci_cf8_conf1.read8(&pbus, sm_dev->bus->secondary, sm_dev->path.pci.devfn, 0xA9); byte |= (1 << 5); /* Set Gpio9 as input */ pci_cf8_conf1.write8(&pbus, sm_dev->bus->secondary, sm_dev->path.pci.devfn, 0xA9, byte); ide_dev = dev_find_slot(0, PCI_DEVFN(0x14, 1)); byte = pci_cf8_conf1.read8(&pbus, ide_dev->bus->secondary, ide_dev->path.pci.devfn, 0x56); byte &= ~(7 << 0); if ((1 << 5) & pci_cf8_conf1. read8(&pbus, sm_dev->bus->secondary, sm_dev->path.pci.devfn, 0xAA)) byte |= 2 << 0; /* mode 2 */ else byte |= 5 << 0; /* mode 5 */ pci_cf8_conf1.write8(&pbus, ide_dev->bus->secondary, ide_dev->path.pci.devfn, 0x56, byte); } /* * set thermal config */ static void set_thermal_config() { u8 byte; u16 word; device_t sm_dev; struct bus pbus; /* 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_cf8_conf1.read16(&pbus, sm_dev->bus->secondary, sm_dev->path.pci.devfn, 0x56); word |= 1 << 7; pci_cf8_conf1.write16(&pbus, sm_dev->bus->secondary, sm_dev->path.pci.devfn, 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 dbm690t_enable(device_t dev) { struct mainboard_config *mainboard = (struct mainboard_config *)dev->chip_info; printk_info("Mainboard DBM690T Enable. dev=0x%x\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%08lx, memory start 0x%08lx\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%lx, uma_memory_size=0x%lx \n", uma_memory_base, uma_memory_size); lb_add_memory_range(mem, LB_MEM_RESERVED, uma_memory_base, uma_memory_size); #endif } /* * CONFIG_CHIP_NAME defined in Option.lb. */ struct chip_operations mainboard_ops = { CHIP_NAME("AMD DBM690T Mainboard") .enable_dev = dbm690t_enable, };