| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| /* |
| * This file is created based on Intel Tiger Lake Processor PCH Datasheet |
| * Document number: 575857 |
| * Chapter number: 13 |
| */ |
| |
| #include <device/device.h> |
| #include <drivers/i2c/designware/dw_i2c.h> |
| #include <soc/pci_devs.h> |
| |
| int dw_i2c_soc_devfn_to_bus(unsigned int devfn) |
| { |
| switch (devfn) { |
| case PCH_DEVFN_I2C0: |
| return 0; |
| case PCH_DEVFN_I2C1: |
| return 1; |
| case PCH_DEVFN_I2C2: |
| return 2; |
| case PCH_DEVFN_I2C3: |
| return 3; |
| case PCH_DEVFN_I2C4: |
| return 4; |
| case PCH_DEVFN_I2C5: |
| return 5; |
| } |
| return -1; |
| } |
| |
| int dw_i2c_soc_bus_to_devfn(unsigned int bus) |
| { |
| switch (bus) { |
| case 0: |
| return PCH_DEVFN_I2C0; |
| case 1: |
| return PCH_DEVFN_I2C1; |
| case 2: |
| return PCH_DEVFN_I2C2; |
| case 3: |
| return PCH_DEVFN_I2C3; |
| case 4: |
| return PCH_DEVFN_I2C4; |
| case 5: |
| return PCH_DEVFN_I2C5; |
| } |
| return -1; |
| } |