tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * PKUnity Inter-integrated Circuit (I2C) Registers
4 */
5
6/*
7 * Control Reg I2C_CON.
8 */
9#define I2C_CON (PKUNITY_I2C_BASE + 0x0000)
10/*
11 * Target Address Reg I2C_TAR.
12 */
13#define I2C_TAR (PKUNITY_I2C_BASE + 0x0004)
14/*
15 * Data buffer and command Reg I2C_DATACMD.
16 */
17#define I2C_DATACMD (PKUNITY_I2C_BASE + 0x0010)
18/*
19 * Enable Reg I2C_ENABLE.
20 */
21#define I2C_ENABLE (PKUNITY_I2C_BASE + 0x006C)
22/*
23 * Status Reg I2C_STATUS.
24 */
25#define I2C_STATUS (PKUNITY_I2C_BASE + 0x0070)
26/*
27 * Tx FIFO Length Reg I2C_TXFLR.
28 */
29#define I2C_TXFLR (PKUNITY_I2C_BASE + 0x0074)
30/*
31 * Rx FIFO Length Reg I2C_RXFLR.
32 */
33#define I2C_RXFLR (PKUNITY_I2C_BASE + 0x0078)
34/*
35 * Enable Status Reg I2C_ENSTATUS.
36 */
37#define I2C_ENSTATUS (PKUNITY_I2C_BASE + 0x009C)
38
39#define I2C_CON_MASTER FIELD(1, 1, 0)
40#define I2C_CON_SPEED_STD FIELD(1, 2, 1)
41#define I2C_CON_SPEED_FAST FIELD(2, 2, 1)
42#define I2C_CON_RESTART FIELD(1, 1, 5)
43#define I2C_CON_SLAVEDISABLE FIELD(1, 1, 6)
44
45#define I2C_DATACMD_READ FIELD(1, 1, 8)
46#define I2C_DATACMD_WRITE FIELD(0, 1, 8)
47#define I2C_DATACMD_DAT_MASK FMASK(8, 0)
48#define I2C_DATACMD_DAT(v) FIELD((v), 8, 0)
49
50#define I2C_ENABLE_ENABLE FIELD(1, 1, 0)
51#define I2C_ENABLE_DISABLE FIELD(0, 1, 0)
52
53#define I2C_STATUS_RFF FIELD(1, 1, 4)
54#define I2C_STATUS_RFNE FIELD(1, 1, 3)
55#define I2C_STATUS_TFE FIELD(1, 1, 2)
56#define I2C_STATUS_TFNF FIELD(1, 1, 1)
57#define I2C_STATUS_ACTIVITY FIELD(1, 1, 0)
58
59#define I2C_ENSTATUS_ENABLE FIELD(1, 1, 0)
60
61#define I2C_TAR_THERMAL 0x4f
62#define I2C_TAR_SPD 0x50
63#define I2C_TAR_PWIC 0x55
64#define I2C_TAR_EEPROM 0x57