Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2010 Advanced Micro Devices, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include <console/console.h> |
| 21 | #include <device/device.h> |
| 22 | #include <device/pci.h> |
| 23 | #include <arch/io.h> |
| 24 | #include <cpu/x86/msr.h> |
| 25 | #include <cpu/amd/mtrr.h> |
| 26 | #include <device/pci_def.h> |
efdesign98 | 00c8c4a | 2011-07-20 12:37:58 -0600 | [diff] [blame] | 27 | #include "southbridge/amd/sb700/sb700.h" |
| 28 | #include "southbridge/amd/sb700/smbus.h" |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 29 | |
| 30 | #define ADT7461_ADDRESS 0x4C |
| 31 | #define ARA_ADDRESS 0x0C /* Alert Response Address */ |
| 32 | |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 33 | #define ADT7461_read_byte(address) \ |
| 34 | do_smbus_read_byte(SMBUS_IO_BASE, ADT7461_ADDRESS, address) |
| 35 | #define ARA_read_byte(address) \ |
| 36 | do_smbus_read_byte(SMBUS_IO_BASE, ARA_ADDRESS, address) |
| 37 | #define ADT7461_write_byte(address, val) \ |
| 38 | do_smbus_write_byte(SMBUS_IO_BASE, ADT7461_ADDRESS, address, val) |
| 39 | |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 40 | void set_pcie_dereset(void); |
| 41 | void set_pcie_reset(void); |
| 42 | u8 is_dev3_present(void); |
| 43 | |
| 44 | void set_pcie_dereset() |
| 45 | { |
| 46 | u8 byte; |
| 47 | u16 word; |
| 48 | device_t sm_dev; |
| 49 | /* set 0 to bit1 :disable GPM9 as SLP_S2 output */ |
| 50 | /* set 0 to bit2 :disable GPM8 as AZ_RST output */ |
| 51 | byte = pm_ioread(0x8d); |
| 52 | byte &= ~((1 << 1) | (1 << 2)); |
| 53 | pm_iowrite(0x8d, byte); |
| 54 | |
| 55 | /* set the GPM8 and GPM9 output enable and the value to 1 */ |
| 56 | byte = pm_ioread(0x94); |
| 57 | byte &= ~((1 << 2) | (1 << 3)); |
| 58 | byte |= ((1 << 0) | (1 << 1)); |
| 59 | pm_iowrite(0x94, byte); |
| 60 | |
| 61 | /* set the GPIO65 output enable and the value is 1 */ |
| 62 | sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); |
| 63 | word = pci_read_config16(sm_dev, 0x7e); |
| 64 | word |= (1 << 0); |
| 65 | word &= ~(1 << 4); |
| 66 | pci_write_config16(sm_dev, 0x7e, word); |
| 67 | } |
| 68 | |
| 69 | void set_pcie_reset() |
| 70 | { |
| 71 | u8 byte; |
| 72 | u16 word; |
| 73 | device_t sm_dev; |
| 74 | |
| 75 | /* set 0 to bit1 :disable GPM9 as SLP_S2 output */ |
| 76 | /* set 0 to bit2 :disable GPM8 as AZ_RST output */ |
| 77 | byte = pm_ioread(0x8d); |
| 78 | byte &= ~((1 << 1) | (1 << 2)); |
| 79 | pm_iowrite(0x8d, byte); |
| 80 | |
| 81 | /* set the GPM8 and GPM9 output enable and the value to 0 */ |
| 82 | byte = pm_ioread(0x94); |
| 83 | byte &= ~((1 << 2) | (1 << 3)); |
| 84 | byte &= ~((1 << 0) | (1 << 1)); |
| 85 | pm_iowrite(0x94, byte); |
| 86 | |
| 87 | /* set the GPIO65 output enable and the value is 0 */ |
| 88 | sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); |
| 89 | word = pci_read_config16(sm_dev, 0x7e); |
| 90 | word &= ~(1 << 0); |
| 91 | word &= ~(1 << 4); |
| 92 | pci_write_config16(sm_dev, 0x7e, word); |
| 93 | } |
| 94 | |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 95 | /* |
| 96 | * justify the dev3 is exist or not |
| 97 | * NOTE: This just copied from AMD Tilapia code. |
Juhana Helovuo | a8c8490 | 2010-12-06 01:11:12 +0000 | [diff] [blame] | 98 | * It is completly unknown it it will work at all for ASUS M4A785-M. |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 99 | */ |
| 100 | u8 is_dev3_present(void) |
| 101 | { |
| 102 | u16 word; |
| 103 | device_t sm_dev; |
| 104 | |
| 105 | /* access the smbus extended register */ |
| 106 | sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); |
| 107 | |
| 108 | /* put the GPIO68 output to tristate */ |
| 109 | word = pci_read_config16(sm_dev, 0x7e); |
| 110 | word |= 1 << 6; |
| 111 | pci_write_config16(sm_dev, 0x7e,word); |
| 112 | |
| 113 | /* read the GPIO68 input status */ |
| 114 | word = pci_read_config16(sm_dev, 0x7e); |
| 115 | |
| 116 | if(word & (1 << 10)){ |
| 117 | /*not exist*/ |
| 118 | return 0; |
| 119 | }else{ |
| 120 | /*exist*/ |
| 121 | return 1; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /* |
| 126 | * set thermal config |
| 127 | */ |
| 128 | static void set_thermal_config(void) |
| 129 | { |
| 130 | u8 byte; |
| 131 | u16 word; |
| 132 | device_t sm_dev; |
| 133 | |
| 134 | /* set ADT 7461 */ |
| 135 | ADT7461_write_byte(0x0B, 0x50); /* Local Temperature Hight limit */ |
| 136 | ADT7461_write_byte(0x0C, 0x00); /* Local Temperature Low limit */ |
| 137 | ADT7461_write_byte(0x0D, 0x50); /* External Temperature Hight limit High Byte */ |
| 138 | ADT7461_write_byte(0x0E, 0x00); /* External Temperature Low limit High Byte */ |
| 139 | |
| 140 | ADT7461_write_byte(0x19, 0x55); /* External THERM limit */ |
| 141 | ADT7461_write_byte(0x20, 0x55); /* Local THERM limit */ |
| 142 | |
| 143 | byte = ADT7461_read_byte(0x02); /* read status register to clear it */ |
| 144 | ARA_read_byte(0x05); /* A hardware alert can only be cleared by the master sending an ARA as a read command */ |
| 145 | printk(BIOS_INFO, "Init adt7461 end , status 0x02 %02x\n", byte); |
| 146 | |
| 147 | /* sb700 settings for thermal config */ |
| 148 | /* set SB700 GPIO 64 to GPIO with pull-up */ |
| 149 | byte = pm2_ioread(0x42); |
| 150 | byte &= 0x3f; |
| 151 | pm2_iowrite(0x42, byte); |
| 152 | |
| 153 | /* set GPIO 64 to input */ |
| 154 | sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); |
| 155 | word = pci_read_config16(sm_dev, 0x56); |
| 156 | word |= 1 << 7; |
| 157 | pci_write_config16(sm_dev, 0x56, word); |
| 158 | |
| 159 | /* set GPIO 64 internal pull-up */ |
| 160 | byte = pm2_ioread(0xf0); |
| 161 | byte &= 0xee; |
| 162 | pm2_iowrite(0xf0, byte); |
| 163 | |
| 164 | /* set Talert to be active low */ |
| 165 | byte = pm_ioread(0x67); |
| 166 | byte &= ~(1 << 5); |
| 167 | pm_iowrite(0x67, byte); |
| 168 | |
| 169 | /* set Talert to generate ACPI event */ |
| 170 | byte = pm_ioread(0x3c); |
| 171 | byte &= 0xf3; |
| 172 | pm_iowrite(0x3c, byte); |
| 173 | |
| 174 | /* THERMTRIP pin */ |
| 175 | /* byte = pm_ioread(0x68); |
| 176 | * byte |= 1 << 3; |
| 177 | * pm_iowrite(0x68, byte); |
| 178 | * |
| 179 | * byte = pm_ioread(0x55); |
| 180 | * byte |= 1 << 0; |
| 181 | * pm_iowrite(0x55, byte); |
| 182 | * |
| 183 | * byte = pm_ioread(0x67); |
| 184 | * byte &= ~( 1 << 6); |
| 185 | * pm_iowrite(0x67, byte); |
| 186 | */ |
| 187 | } |
| 188 | |
| 189 | /************************************************* |
Juhana Helovuo | a8c8490 | 2010-12-06 01:11:12 +0000 | [diff] [blame] | 190 | * enable the dedicated function in this board. |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 191 | * This function called early than rs780_enable. |
| 192 | *************************************************/ |
Paul Menzel | 528640d | 2013-02-23 21:31:23 +0100 | [diff] [blame^] | 193 | static void mainboard_enable(device_t dev) |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 194 | { |
Juhana Helovuo | a8c8490 | 2010-12-06 01:11:12 +0000 | [diff] [blame] | 195 | printk(BIOS_INFO, "Mainboard enable. dev=0x%p\n", dev); |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 196 | |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 197 | set_pcie_dereset(); |
| 198 | /* get_ide_dma66(); */ |
| 199 | set_thermal_config(); |
| 200 | } |
| 201 | |
| 202 | struct chip_operations mainboard_ops = { |
Paul Menzel | 528640d | 2013-02-23 21:31:23 +0100 | [diff] [blame^] | 203 | .enable_dev = mainboard_enable, |
Juhana Helovuo | d09d1f7 | 2010-09-13 14:51:26 +0000 | [diff] [blame] | 204 | }; |