1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 /* 4 * This file is created based on Intel Tiger Lake Processor PCH Datasheet 5 * Document number: 575857 6 * Chapter number: 13 7 */ 8 9 #include <device/device.h> 10 #include <drivers/i2c/designware/dw_i2c.h> 11 #include <soc/pci_devs.h> 12 dw_i2c_soc_devfn_to_bus(unsigned int devfn)13int dw_i2c_soc_devfn_to_bus(unsigned int devfn) 14 { 15 switch (devfn) { 16 case PCH_DEVFN_I2C0: 17 return 0; 18 case PCH_DEVFN_I2C1: 19 return 1; 20 case PCH_DEVFN_I2C2: 21 return 2; 22 case PCH_DEVFN_I2C3: 23 return 3; 24 case PCH_DEVFN_I2C4: 25 return 4; 26 case PCH_DEVFN_I2C5: 27 return 5; 28 } 29 return -1; 30 } 31 dw_i2c_soc_bus_to_devfn(unsigned int bus)32int dw_i2c_soc_bus_to_devfn(unsigned int bus) 33 { 34 switch (bus) { 35 case 0: 36 return PCH_DEVFN_I2C0; 37 case 1: 38 return PCH_DEVFN_I2C1; 39 case 2: 40 return PCH_DEVFN_I2C2; 41 case 3: 42 return PCH_DEVFN_I2C3; 43 case 4: 44 return PCH_DEVFN_I2C4; 45 case 5: 46 return PCH_DEVFN_I2C5; 47 } 48 return -1; 49 } 50