/* * 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 #include "chip.h" #define ADT7475_ADDRESS 0x2E #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 ADT7475_read_byte(address) \ do_smbus_read_byte(SMBUS_IO_BASE, ADT7475_ADDRESS, address) #define ADT7475_write_byte(address, val) \ do_smbus_write_byte(SMBUS_IO_BASE, ADT7475_ADDRESS, address, val) /******************************************************** * pistachio uses a BCM5787 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 GPM8. * 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 * The R77 (on BRASS) / R81 (on Bronze) is not load! * So NIC can work whether this function runs. ********************************************************/ static void enable_onboard_nic(void) { u8 byte; printk(BIOS_INFO, "%s.\n", __func__); /* enable GPM8 output */ byte = pm_ioread(0x95); byte &= 0xfe; pm_iowrite(0x95, byte); /* GPM8 outputs low. */ byte = pm_ioread(0x94); byte &= 0xfe; pm_iowrite(0x94, byte); } /* * set thermal config */ static void set_thermal_config(void) { u8 byte, byte2; u16 word; u32 dword; device_t sm_dev; /* set adt7475 */ ADT7475_write_byte(0x40, 0x04); /* Config Register 6 */ ADT7475_write_byte(0x10, 0x00); /* Config Register 7 */ ADT7475_write_byte(0x11, 0x00); /* set Offset 64 format, enable THERM on Remote 1& Remote 2 */ ADT7475_write_byte(0x7c, 0xa0); /* No offset for remote 2 */ ADT7475_write_byte(0x72, 0x00); /* PWM 1 configuration register CPU fan controlled by CPU Thermal Diode */ ADT7475_write_byte(0x5c, 0x02); /* PWM 3 configuration register Case fan controlled by 690 temp */ ADT7475_write_byte(0x5e, 0x42); /* remote 1 low temp limit */ ADT7475_write_byte(0x4e, 0x00); /* remote 1 High temp limit (90C) */ ADT7475_write_byte(0x4f, 0x9a); /* remote2 Low Temp Limit */ ADT7475_write_byte(0x52, 0x00); /* remote2 High Limit (90C) */ ADT7475_write_byte(0x53, 0x9a); /* remote 1 therm temp limit (95C) */ ADT7475_write_byte(0x6a, 0x9f); /* remote 2 therm temp limit (95C) */ ADT7475_write_byte(0x6c, 0x9f); /* PWM 1 minimum duty cycle (37%) */ ADT7475_write_byte(0x64, 0x60); /* PWM 1 Maximum duty cycle (100%) */ ADT7475_write_byte(0x38, 0xff); /* PWM 3 minimum duty cycle (37%) */ ADT7475_write_byte(0x66, 0x60); /* PWM 3 Maximum Duty Cycle (100%) */ ADT7475_write_byte(0x3a, 0xff); /* Remote 1 temperature Tmin (32C) */ ADT7475_write_byte(0x67, 0x60); /* Remote 2 temperature Tmin (32C) */ ADT7475_write_byte(0x69, 0x60); /* remote 1 Trange (53C ramp range) */ ADT7475_write_byte(0x5f, 0xe8); /* remote 2 Trange (53C ramp range) */ ADT7475_write_byte(0x61, 0xe8); /* PWM2 Duty cycle */ ADT7475_write_byte(0x65, 0x00); /* PWM2 Disabled */ ADT7475_write_byte(0x5d, 0x80); /* PWM2 Max Duty Cycle */ ADT7475_write_byte(0x39, 0x00); /* Config Register 3 - enable smbalert & therm */ ADT7475_write_byte(0x78, 0x03); /* Config Register 4 - enable therm output */ ADT7475_write_byte(0x7d, 0x09); /* Interrupt Mask Register 2 - Mask SMB alert for Therm Conditions, Fan 2 fault, SmbAlert Fan for Therm Timer event */ ADT7475_write_byte(0x75, 0x2a); /* Config Register 1 Set Start bit */ ADT7475_write_byte(0x40, 0x05); /* Read status register to clear any old errors */ byte2 = ADT7475_read_byte(0x42); byte = ADT7475_read_byte(0x41); /* remote 1 temperature offset */ ADT7475_write_byte(0x70, 0x00); printk(BIOS_INFO, "Init adt7475 end , status 0x42 %02x, status 0x41 %02x\n", byte2, byte); /* sb600 setting for thermal config. Set SB600 GPM5 to trigger ACPI event */ /* set GPM5 as GPM5, not DDR3_memory disable */ byte = pm_ioread(0x8f); byte |= 1 << 6; /* enable GPE */ pm_iowrite(0x8f, byte); /* GPM5 as GPIO not USB OC */ sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); dword = pci_read_config32(sm_dev, 0x64); dword |= 1 << 19; pci_write_config32(sm_dev, 0x64, dword); /* Enable Client Management Index/Data registers */ dword = pci_read_config32(sm_dev, 0x78); dword |= 1 << 11; /* Cms_enable */ pci_write_config32(sm_dev, 0x78, dword); /* MiscfuncEnable */ byte = pci_read_config8(sm_dev, 0x41); byte |= (1 << 5); pci_write_config8(sm_dev, 0x41, byte); /* set GPM5 as input */ /* 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); /* CMData */ byte &= 0x3f; byte |= 1 << 6; outb(byte, 0xC51); /* set GPM port 0C52h bit 5 to 1 to tri-state the GPM port */ byte = inb(0xc52); /* GpmPort */ byte |= 1 << 5; outb(byte, 0xc52); /* set CM data register 0C51h bits [7:6] to 00b to set GPM port for read */ byte = inb(0xc51); byte &= 0x3f; outb(byte, 0xc51); /* trigger SCI/SMI */ byte = pm_ioread(0x34); byte &= 0xcf; pm_iowrite(0x34, byte); /* set GPM5 to not wake from s5 */ byte = pm_ioread(0x77); byte &= ~(1 << 5); pm_iowrite(0x77, byte); /* trigger on falling edge */ byte = pm_ioread(0x38); byte &= ~(1 << 2); pm_iowrite(0x38, byte); /* set SB600 GPIO 64 to GPIO with pull-up */ byte = pm2_ioread(0x42); byte &= 0x3f; pm2_iowrite(0x42, byte); /* set GPIO 64 to input */ 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 pistachio board. * This function called early than rs690_enable. *************************************************/ static void pistachio_enable(device_t dev) { printk(BIOS_INFO, "Mainboard Pistachio Enable. dev=0x%p\n", dev); #if CONFIG_GFXUMA 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 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("AMD Pistachio Mainboard") .enable_dev = pistachio_enable, };