1 /** 2 3 Copyright (c) 2011 - 2014, Intel Corporation. All rights reserved 4 5 This program and the accompanying materials are licensed and made available under 6 the terms and conditions of the BSD License that accompanies this distribution. 7 The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 14 15 @file 16 PchRegsSmbus.h 17 18 @brief 19 Register names for VLV Smbus Device. 20 21 Conventions: 22 23 - Prefixes: 24 Definitions beginning with "R_" are registers 25 Definitions beginning with "B_" are bits within registers 26 Definitions beginning with "V_" are meaningful values of bits within the registers 27 Definitions beginning with "S_" are register sizes 28 Definitions beginning with "N_" are the bit position 29 - In general, PCH registers are denoted by "_PCH_" in register names 30 - Registers / bits that are different between PCH generations are denoted by 31 "_PCH_<generation_name>_" in register/bit names. e.g., "_PCH_VLV_" 32 - Registers / bits that are different between SKUs are denoted by "_<SKU_name>" 33 at the end of the register/bit names 34 - Registers / bits of new devices introduced in a PCH generation will be just named 35 as "_PCH_" without <generation_name> inserted. 36 37 **/ 38 #ifndef _PCH_REGS_SMBUS_H_ 39 #define _PCH_REGS_SMBUS_H_ 40 41 /// 42 /// SMBus Controller Registers (D31:F3) 43 /// 44 #define PCI_DEVICE_NUMBER_PCH_SMBUS 31 45 #define PCI_FUNCTION_NUMBER_PCH_SMBUS 3 46 47 #define R_PCH_SMBUS_VENDOR_ID 0x00 // Vendor ID 48 #define V_PCH_SMBUS_VENDOR_ID V_PCH_INTEL_VENDOR_ID // Intel Vendor ID 49 50 #define R_PCH_SMBUS_DEVICE_ID 0x02 // Device ID 51 #define V_PCH_SMBUS_DEVICE_ID 0x0F12 52 53 #define R_PCH_SMBUS_PCICMD 0x04 // CMD register enables/disables, Memory/IO space access and interrupt 54 #define B_PCH_SMBUS_PCICMD_INTR_DIS BIT10 // Interrupt Disable 55 #define B_PCH_SMBUS_PCICMD_FBE BIT9 // FBE - reserved as '0' 56 #define B_PCH_SMBUS_PCICMD_SERR_EN BIT8 // SERR Enable - reserved as '0' 57 #define B_PCH_SMBUS_PCICMD_WCC BIT7 // Wait Cycle Control - reserved as '0' 58 #define B_PCH_SMBUS_PCICMD_PER BIT6 // Parity Error - reserved as '0' 59 #define B_PCH_SMBUS_PCICMD_VPS BIT5 // VGA Palette Snoop - reserved as '0' 60 #define B_PCH_SMBUS_PCICMD_PMWE BIT4 // Postable Memory Write Enable - reserved as '0' 61 #define B_PCH_SMBUS_PCICMD_SCE BIT3 // Special Cycle Enable - reserved as '0' 62 #define B_PCH_SMBUS_PCICMD_BME BIT2 // Bus Master Enable - reserved as '0' 63 #define B_PCH_SMBUS_PCICMD_MSE BIT1 // Memory Space Enable 64 #define B_PCH_SMBUS_PCICMD_IOSE BIT0 // I/O Space Enable 65 66 #define R_PCH_SMBUS_BASE 0x20 // The I/O memory bar 67 #define B_PCH_SMBUS_BASE_BAR 0x0000FFE0 // Base Address 68 #define B_PCH_SMBUS_BASE_IOSI BIT0 // IO Space Indicator 69 70 #define R_PCH_SMBUS_SVID 0x2C // Subsystem Vendor ID 71 #define B_PCH_SMBUS_SVID 0xFFFF // Subsystem Vendor ID 72 73 // 74 // SMBus I/O Registers 75 // 76 #define R_PCH_SMBUS_HSTS 0x00 // Host Status Register R/W 77 #define B_PCH_SMBUS_HSTS_ALL 0xFF 78 #define B_PCH_SMBUS_BYTE_DONE_STS BIT7 // Byte Done Status 79 #define B_PCH_SMBUS_IUS BIT6 // In Use Status 80 #define B_PCH_SMBUS_SMBALERT_STS BIT5 // SMBUS Alert 81 #define B_PCH_SMBUS_FAIL BIT4 // Failed 82 #define B_PCH_SMBUS_BERR BIT3 // Bus Error 83 #define B_PCH_SMBUS_DERR BIT2 // Device Error 84 #define B_PCH_SMBUS_ERRORS (B_PCH_SMBUS_FAIL | B_PCH_SMBUS_BERR | B_PCH_SMBUS_DERR) 85 #define B_PCH_SMBUS_INTR BIT1 // Interrupt 86 #define B_PCH_SMBUS_HBSY BIT0 // Host Busy 87 88 #define R_PCH_SMBUS_HCTL 0x02 // Host Control Register R/W 89 #define B_PCH_SMBUS_PEC_EN BIT7 // Packet Error Checking Enable 90 #define B_PCH_SMBUS_START BIT6 // Start 91 #define B_PCH_SMBUS_LAST_BYTE BIT5 // Last Byte 92 #define B_PCH_SMBUS_SMB_CMD 0x1C // SMB Command 93 #define V_PCH_SMBUS_SMB_CMD_BLOCK_PROCESS 0x1C // Block Process 94 #define V_PCH_SMBUS_SMB_CMD_IIC_READ 0x18 // I2C Read 95 #define V_PCH_SMBUS_SMB_CMD_BLOCK 0x14 // Block 96 #define V_PCH_SMBUS_SMB_CMD_PROCESS_CALL 0x10 // Process Call 97 #define V_PCH_SMBUS_SMB_CMD_WORD_DATA 0x0C // Word Data 98 #define V_PCH_SMBUS_SMB_CMD_BYTE_DATA 0x08 // Byte Data 99 #define V_PCH_SMBUS_SMB_CMD_BYTE 0x04 // Byte 100 #define V_PCH_SMBUS_SMB_CMD_QUICK 0x00 // Quick 101 #define B_PCH_SMBUS_KILL BIT1 // Kill 102 #define B_PCH_SMBUS_INTREN BIT0 // Interrupt Enable 103 104 #define R_PCH_SMBUS_HCMD 0x03 // Host Command Register R/W 105 #define B_PCH_SMBUS_HCMD 0xFF // Command to be transmitted 106 107 #define R_PCH_SMBUS_TSA 0x04 // Transmit Slave Address Register R/W 108 #define B_PCH_SMBUS_ADDRESS 0xFE // 7-bit address of the targeted slave 109 #define B_PCH_SMBUS_RW_SEL BIT0 // Direction of the host transfer, 1 = read, 0 = write 110 #define B_PCH_SMBUS_RW_SEL_READ 0x01 // Read 111 #define B_PCH_SMBUS_RW_SEL_WRITE 0x00 // Write 112 // 113 #define R_PCH_SMBUS_HD0 0x05 // Data 0 Register R/W 114 #define R_PCH_SMBUS_HD1 0x06 // Data 1 Register R/W 115 #define R_PCH_SMBUS_HBD 0x07 // Host Block Data Register R/W 116 #define R_PCH_SMBUS_PEC 0x08 // Packet Error Check Data Register R/W 117 118 #define R_PCH_SMBUS_RSA 0x09 // Receive Slave Address Register R/W 119 #define B_PCH_SMBUS_SLAVE_ADDR 0x7F // TCO slave address (Not used, reserved) 120 121 #define R_PCH_SMBUS_SD 0x0A // Receive Slave Data Register R/W 122 123 #define R_PCH_SMBUS_AUXS 0x0C // Auxiliary Status Register R/WC 124 #define B_PCH_SMBUS_CRCE BIT0 // CRC Error 125 // 126 #define R_PCH_SMBUS_AUXC 0x0D // Auxiliary Control Register R/W 127 #define B_PCH_SMBUS_E32B BIT1 // Enable 32-byte Buffer 128 #define B_PCH_SMBUS_AAC BIT0 // Automatically Append CRC 129 130 #define R_PCH_SMBUS_SMLC 0x0E // SMLINK Pin Control Register R/W 131 #define B_PCH_SMBUS_SMLINK_CLK_CTL BIT2 // Not supported 132 #define B_PCH_SMBUS_SMLINK1_CUR_STS BIT1 // Not supported 133 #define B_PCH_SMBUS_SMLINK0_CUR_STS BIT0 // Not supported 134 135 136 #define R_PCH_SMBUS_SMBC 0x0F // SMBus Pin Control Register R/W 137 #define B_PCH_SMBUS_SMBCLK_CTL BIT2 // SMBCLK Control 138 #define B_PCH_SMBUS_SMBDATA_CUR_STS BIT1 // SMBDATA Current Status 139 #define B_PCH_SMBUS_SMBCLK_CUR_STS BIT0 // SMBCLK Current Status 140 141 #define R_PCH_SMBUS_SSTS 0x10 // Slave Status Register R/WC 142 #define B_PCH_SMBUS_HOST_NOTIFY_STS BIT0 // Host Notify Status 143 144 #define R_PCH_SMBUS_SCMD 0x11 // Slave Command Register R/W 145 #define B_PCH_SMBUS_SMBALERT_DIS BIT2 // Not supported 146 #define B_PCH_SMBUS_HOST_NOTIFY_WKEN BIT1 // Host Notify Wake Enable 147 #define B_PCH_SMBUS_HOST_NOTIFY_INTREN BIT0 // Host Notify Interrupt Enable 148 149 #define R_PCH_SMBUS_NDA 0x14 // Notify Device Address Register RO 150 #define B_PCH_SMBUS_DEVICE_ADDRESS 0xFE // Device Address 151 152 #define R_PCH_SMBUS_NDLB 0x16 // Notify Data Low Byte Register RO 153 #define R_PCH_SMBUS_NDHB 0x17 // Notify Data High Byte Register RO 154 155 #endif 156