coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
i2c.c
Go to the documentation of this file.
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
13
int
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
32
int
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
}
dw_i2c.h
device.h
dw_i2c_soc_bus_to_devfn
int dw_i2c_soc_bus_to_devfn(unsigned int bus)
Definition:
i2c.c:36
dw_i2c_soc_devfn_to_bus
int dw_i2c_soc_devfn_to_bus(unsigned int devfn)
Definition:
i2c.c:13
PCH_DEVFN_I2C5
#define PCH_DEVFN_I2C5
Definition:
pci_devs.h:163
PCH_DEVFN_I2C0
#define PCH_DEVFN_I2C0
Definition:
pci_devs.h:134
PCH_DEVFN_I2C3
#define PCH_DEVFN_I2C3
Definition:
pci_devs.h:137
PCH_DEVFN_I2C4
#define PCH_DEVFN_I2C4
Definition:
pci_devs.h:162
PCH_DEVFN_I2C2
#define PCH_DEVFN_I2C2
Definition:
pci_devs.h:136
PCH_DEVFN_I2C1
#define PCH_DEVFN_I2C1
Definition:
pci_devs.h:135
bus
Definition:
device.h:76
src
soc
intel
tigerlake
i2c.c
Generated by
1.9.1