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
65