xref: /qemu/include/hw/i2c/aspeed_i2c.h (revision 1721fe75df1cbabf2665a2b76a6e7b5bc0fc036b)
116020011SCédric Le Goater /*
216020011SCédric Le Goater  *  ASPEED AST2400 I2C Controller
316020011SCédric Le Goater  *
416020011SCédric Le Goater  *  Copyright (C) 2016 IBM Corp.
516020011SCédric Le Goater  *
616020011SCédric Le Goater  *  This program is free software; you can redistribute it and/or modify
716020011SCédric Le Goater  *  it under the terms of the GNU General Public License as published by
816020011SCédric Le Goater  *  the Free Software Foundation; either version 2 of the License, or
916020011SCédric Le Goater  *  (at your option) any later version.
1016020011SCédric Le Goater  *
1116020011SCédric Le Goater  *  This program is distributed in the hope that it will be useful,
1216020011SCédric Le Goater  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
1316020011SCédric Le Goater  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
1416020011SCédric Le Goater  *  GNU General Public License for more details.
1516020011SCédric Le Goater  *
1616020011SCédric Le Goater  *  You should have received a copy of the GNU General Public License along
17*e5308bc5SSean Wei  *  with this program; if not, see <https://www.gnu.org/licenses/>.
1816020011SCédric Le Goater  */
19ec150c7eSMarkus Armbruster 
2016020011SCédric Le Goater #ifndef ASPEED_I2C_H
2116020011SCédric Le Goater #define ASPEED_I2C_H
2216020011SCédric Le Goater 
2316020011SCédric Le Goater #include "hw/i2c/i2c.h"
24ec150c7eSMarkus Armbruster #include "hw/sysbus.h"
25e532cd04SJoe Komlodi #include "hw/registerfields.h"
26db1015e9SEduardo Habkost #include "qom/object.h"
2716020011SCédric Le Goater 
2816020011SCédric Le Goater #define TYPE_ASPEED_I2C "aspeed.i2c"
29f7da1aa8SCédric Le Goater #define TYPE_ASPEED_2400_I2C TYPE_ASPEED_I2C "-ast2400"
30f7da1aa8SCédric Le Goater #define TYPE_ASPEED_2500_I2C TYPE_ASPEED_I2C "-ast2500"
3151dd4923SCédric Le Goater #define TYPE_ASPEED_2600_I2C TYPE_ASPEED_I2C "-ast2600"
32b35802ceSCédric Le Goater #define TYPE_ASPEED_1030_I2C TYPE_ASPEED_I2C "-ast1030"
331809ab6aSJamin Lin #define TYPE_ASPEED_2700_I2C TYPE_ASPEED_I2C "-ast2700"
34a489d195SEduardo Habkost OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
3516020011SCédric Le Goater 
3651dd4923SCédric Le Goater #define ASPEED_I2C_NR_BUSSES 16
375d337540SJamin Lin #define ASPEED_I2C_SHARE_POOL_SIZE 0x800
3862c0c65dSJamin Lin #define ASPEED_I2C_BUS_POOL_SIZE 0x20
392260fc6fSJoe Komlodi #define ASPEED_I2C_OLD_NUM_REG 11
403dbab141SJamin Lin #define ASPEED_I2C_NEW_NUM_REG 28
4116020011SCédric Le Goater 
42a3ebb580SStefan Berger #define A_I2CD_M_STOP_CMD       BIT(5)
43a3ebb580SStefan Berger #define A_I2CD_M_RX_CMD         BIT(3)
44a3ebb580SStefan Berger #define A_I2CD_M_TX_CMD         BIT(1)
45a3ebb580SStefan Berger #define A_I2CD_M_START_CMD      BIT(0)
46a3ebb580SStefan Berger 
47a3ebb580SStefan Berger #define A_I2CD_MASTER_EN        BIT(0)
48a3ebb580SStefan Berger 
49e532cd04SJoe Komlodi /* Tx State Machine */
50e532cd04SJoe Komlodi #define   I2CD_TX_STATE_MASK                  0xf
51e532cd04SJoe Komlodi #define     I2CD_IDLE                         0x0
52e532cd04SJoe Komlodi #define     I2CD_MACTIVE                      0x8
53e532cd04SJoe Komlodi #define     I2CD_MSTART                       0x9
54e532cd04SJoe Komlodi #define     I2CD_MSTARTR                      0xa
55e532cd04SJoe Komlodi #define     I2CD_MSTOP                        0xb
56e532cd04SJoe Komlodi #define     I2CD_MTXD                         0xc
57e532cd04SJoe Komlodi #define     I2CD_MRXACK                       0xd
58e532cd04SJoe Komlodi #define     I2CD_MRXD                         0xe
59e532cd04SJoe Komlodi #define     I2CD_MTXACK                       0xf
60e532cd04SJoe Komlodi #define     I2CD_SWAIT                        0x1
61e532cd04SJoe Komlodi #define     I2CD_SRXD                         0x4
62e532cd04SJoe Komlodi #define     I2CD_STXACK                       0x5
63e532cd04SJoe Komlodi #define     I2CD_STXD                         0x6
64e532cd04SJoe Komlodi #define     I2CD_SRXACK                       0x7
65e532cd04SJoe Komlodi #define     I2CD_RECOVER                      0x3
66e532cd04SJoe Komlodi 
67e532cd04SJoe Komlodi /* I2C Global Register */
68e532cd04SJoe Komlodi REG32(I2C_CTRL_STATUS, 0x0) /* Device Interrupt Status */
69e532cd04SJoe Komlodi REG32(I2C_CTRL_ASSIGN, 0x8) /* Device Interrupt Target Assignment */
70e532cd04SJoe Komlodi REG32(I2C_CTRL_GLOBAL, 0xC) /* Global Control Register */
71e532cd04SJoe Komlodi     FIELD(I2C_CTRL_GLOBAL, REG_MODE, 2, 1)
72e532cd04SJoe Komlodi     FIELD(I2C_CTRL_GLOBAL, SRAM_EN, 0, 1)
73e532cd04SJoe Komlodi REG32(I2C_CTRL_NEW_CLK_DIVIDER, 0x10) /* New mode clock divider */
74e532cd04SJoe Komlodi 
75e532cd04SJoe Komlodi /* I2C Old Mode Device (Bus) Register */
76e532cd04SJoe Komlodi REG32(I2CD_FUN_CTRL, 0x0) /* I2CD Function Control  */
77e532cd04SJoe Komlodi     FIELD(I2CD_FUN_CTRL, POOL_PAGE_SEL, 20, 3) /* AST2400 */
78e532cd04SJoe Komlodi     SHARED_FIELD(M_SDA_LOCK_EN, 16, 1)
79e532cd04SJoe Komlodi     SHARED_FIELD(MULTI_MASTER_DIS, 15, 1)
80e532cd04SJoe Komlodi     SHARED_FIELD(M_SCL_DRIVE_EN, 14, 1)
81e532cd04SJoe Komlodi     SHARED_FIELD(MSB_STS, 9, 1)
82e532cd04SJoe Komlodi     SHARED_FIELD(SDA_DRIVE_IT_EN, 8, 1)
83e532cd04SJoe Komlodi     SHARED_FIELD(M_SDA_DRIVE_IT_EN, 7, 1)
84e532cd04SJoe Komlodi     SHARED_FIELD(M_HIGH_SPEED_EN, 6, 1)
85e532cd04SJoe Komlodi     SHARED_FIELD(DEF_ADDR_EN, 5, 1)
86e532cd04SJoe Komlodi     SHARED_FIELD(DEF_ALERT_EN, 4, 1)
87e532cd04SJoe Komlodi     SHARED_FIELD(DEF_ARP_EN, 3, 1)
88e532cd04SJoe Komlodi     SHARED_FIELD(DEF_GCALL_EN, 2, 1)
89e532cd04SJoe Komlodi     SHARED_FIELD(SLAVE_EN, 1, 1)
90e532cd04SJoe Komlodi     SHARED_FIELD(MASTER_EN, 0, 1)
91e532cd04SJoe Komlodi REG32(I2CD_AC_TIMING1, 0x04) /* Clock and AC Timing Control #1 */
92e532cd04SJoe Komlodi REG32(I2CD_AC_TIMING2, 0x08) /* Clock and AC Timing Control #2 */
93e532cd04SJoe Komlodi REG32(I2CD_INTR_CTRL, 0x0C)  /* I2CD Interrupt Control */
94e532cd04SJoe Komlodi REG32(I2CD_INTR_STS, 0x10)   /* I2CD Interrupt Status */
95e532cd04SJoe Komlodi     SHARED_FIELD(SLAVE_ADDR_MATCH, 31, 1)    /* 0: addr1 1: addr2 */
96e532cd04SJoe Komlodi     SHARED_FIELD(SLAVE_ADDR_RX_PENDING, 29, 1)
97e532cd04SJoe Komlodi     SHARED_FIELD(SLAVE_INACTIVE_TIMEOUT, 15, 1)
98e532cd04SJoe Komlodi     SHARED_FIELD(SDA_DL_TIMEOUT, 14, 1)
99e532cd04SJoe Komlodi     SHARED_FIELD(BUS_RECOVER_DONE, 13, 1)
100e532cd04SJoe Komlodi     SHARED_FIELD(SMBUS_ALERT, 12, 1)                    /* Bus [0-3] only */
101e532cd04SJoe Komlodi     FIELD(I2CD_INTR_STS, SMBUS_ARP_ADDR, 11, 1)         /* Removed */
102e532cd04SJoe Komlodi     FIELD(I2CD_INTR_STS, SMBUS_DEV_ALERT_ADDR, 10, 1)   /* Removed */
103e532cd04SJoe Komlodi     FIELD(I2CD_INTR_STS, SMBUS_DEF_ADDR, 9, 1)          /* Removed */
104e532cd04SJoe Komlodi     FIELD(I2CD_INTR_STS, GCALL_ADDR, 8, 1)              /* Removed */
105e532cd04SJoe Komlodi     FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1)     /* use RX_DONE */
106e532cd04SJoe Komlodi     SHARED_FIELD(SCL_TIMEOUT, 6, 1)
107e532cd04SJoe Komlodi     SHARED_FIELD(ABNORMAL, 5, 1)
108e532cd04SJoe Komlodi     SHARED_FIELD(NORMAL_STOP, 4, 1)
109e532cd04SJoe Komlodi     SHARED_FIELD(ARBIT_LOSS, 3, 1)
110e532cd04SJoe Komlodi     SHARED_FIELD(RX_DONE, 2, 1)
111e532cd04SJoe Komlodi     SHARED_FIELD(TX_NAK, 1, 1)
112e532cd04SJoe Komlodi     SHARED_FIELD(TX_ACK, 0, 1)
113e532cd04SJoe Komlodi REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
114e532cd04SJoe Komlodi     SHARED_FIELD(SDA_OE, 28, 1)
115e532cd04SJoe Komlodi     SHARED_FIELD(SDA_O, 27, 1)
116e532cd04SJoe Komlodi     SHARED_FIELD(SCL_OE, 26, 1)
117e532cd04SJoe Komlodi     SHARED_FIELD(SCL_O, 25, 1)
118e532cd04SJoe Komlodi     SHARED_FIELD(TX_TIMING, 23, 2)
119e532cd04SJoe Komlodi     SHARED_FIELD(TX_STATE, 19, 4)
120e532cd04SJoe Komlodi     SHARED_FIELD(SCL_LINE_STS, 18, 1)
121e532cd04SJoe Komlodi     SHARED_FIELD(SDA_LINE_STS, 17, 1)
122e532cd04SJoe Komlodi     SHARED_FIELD(BUS_BUSY_STS, 16, 1)
123e532cd04SJoe Komlodi     SHARED_FIELD(SDA_OE_OUT_DIR, 15, 1)
124e532cd04SJoe Komlodi     SHARED_FIELD(SDA_O_OUT_DIR, 14, 1)
125e532cd04SJoe Komlodi     SHARED_FIELD(SCL_OE_OUT_DIR, 13, 1)
126e532cd04SJoe Komlodi     SHARED_FIELD(SCL_O_OUT_DIR, 12, 1)
127e532cd04SJoe Komlodi     SHARED_FIELD(BUS_RECOVER_CMD_EN, 11, 1)
128e532cd04SJoe Komlodi     SHARED_FIELD(S_ALT_EN, 10, 1)
129e532cd04SJoe Komlodi     /* Command Bits */
130e532cd04SJoe Komlodi     SHARED_FIELD(RX_DMA_EN, 9, 1)
131e532cd04SJoe Komlodi     SHARED_FIELD(TX_DMA_EN, 8, 1)
132e532cd04SJoe Komlodi     SHARED_FIELD(RX_BUFF_EN, 7, 1)
133e532cd04SJoe Komlodi     SHARED_FIELD(TX_BUFF_EN, 6, 1)
134e532cd04SJoe Komlodi     SHARED_FIELD(M_STOP_CMD, 5, 1)
135e532cd04SJoe Komlodi     SHARED_FIELD(M_S_RX_CMD_LAST, 4, 1)
136e532cd04SJoe Komlodi     SHARED_FIELD(M_RX_CMD, 3, 1)
137e532cd04SJoe Komlodi     SHARED_FIELD(S_TX_CMD, 2, 1)
138e532cd04SJoe Komlodi     SHARED_FIELD(M_TX_CMD, 1, 1)
139e532cd04SJoe Komlodi     SHARED_FIELD(M_START_CMD, 0, 1)
140e532cd04SJoe Komlodi REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
1413648d31fSPeter Delevoryas     SHARED_FIELD(SLAVE_DEV_ADDR1, 0, 7)
142e532cd04SJoe Komlodi REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
14397b8aa5aSHang Yu     SHARED_FIELD(RX_COUNT, 24, 6)
144e532cd04SJoe Komlodi     SHARED_FIELD(RX_SIZE, 16, 5)
14597b8aa5aSHang Yu     SHARED_FIELD(TX_COUNT, 8, 5)
146e532cd04SJoe Komlodi     FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
147acc3d20aSHang Yu     SHARED_FIELD(BUF_ORGANIZATION, 0, 1) /* AST2600 */
148e532cd04SJoe Komlodi REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
149e532cd04SJoe Komlodi     SHARED_FIELD(RX_BUF, 8, 8)
150e532cd04SJoe Komlodi     SHARED_FIELD(TX_BUF, 0, 8)
151e532cd04SJoe Komlodi REG32(I2CD_DMA_ADDR, 0x24) /* DMA Buffer Address */
152e532cd04SJoe Komlodi REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
153e532cd04SJoe Komlodi 
154e532cd04SJoe Komlodi /* I2C New Mode Device (Bus) Register */
155e532cd04SJoe Komlodi REG32(I2CC_FUN_CTRL, 0x0)
156e532cd04SJoe Komlodi     FIELD(I2CC_FUN_CTRL, RB_EARLY_DONE_EN, 22, 1)
157e532cd04SJoe Komlodi     FIELD(I2CC_FUN_CTRL, DMA_DIS_AUTO_RECOVER, 21, 1)
158e532cd04SJoe Komlodi     FIELD(I2CC_FUN_CTRL, S_SAVE_ADDR, 20, 1)
159e532cd04SJoe Komlodi     FIELD(I2CC_FUN_CTRL, M_PKT_RETRY_CNT, 18, 2)
160e532cd04SJoe Komlodi     /* 17:0 shared with I2CD_FUN_CTRL[17:0] */
161e532cd04SJoe Komlodi REG32(I2CC_AC_TIMING, 0x04)
162e532cd04SJoe Komlodi REG32(I2CC_MS_TXRX_BYTE_BUF, 0x08)
163e532cd04SJoe Komlodi     /* 31:16 shared with I2CD_CMD[31:16] */
164e532cd04SJoe Komlodi     /* 15:0  shared with I2CD_BYTE_BUF[15:0] */
165e532cd04SJoe Komlodi REG32(I2CC_POOL_CTRL, 0x0c)
166e532cd04SJoe Komlodi     /* 31:0 shared with I2CD_POOL_CTRL[31:0] */
167e532cd04SJoe Komlodi REG32(I2CM_INTR_CTRL, 0x10)
168e532cd04SJoe Komlodi REG32(I2CM_INTR_STS, 0x14)
169e532cd04SJoe Komlodi     FIELD(I2CM_INTR_STS, PKT_STATE, 28, 4)
170e532cd04SJoe Komlodi     FIELD(I2CM_INTR_STS, PKT_CMD_TIMEOUT, 18, 1)
171e532cd04SJoe Komlodi     FIELD(I2CM_INTR_STS, PKT_CMD_FAIL, 17, 1)
172e532cd04SJoe Komlodi     FIELD(I2CM_INTR_STS, PKT_CMD_DONE, 16, 1)
173e532cd04SJoe Komlodi     FIELD(I2CM_INTR_STS, BUS_RECOVER_FAIL, 15, 1)
174e532cd04SJoe Komlodi     /* 14:0 shared with I2CD_INTR_STS[14:0] */
175e532cd04SJoe Komlodi REG32(I2CM_CMD, 0x18)
176e532cd04SJoe Komlodi     FIELD(I2CM_CMD, W1_CTRL, 31, 1)
177e532cd04SJoe Komlodi     FIELD(I2CM_CMD, PKT_DEV_ADDR, 24, 7)
178e532cd04SJoe Komlodi     FIELD(I2CM_CMD, HS_MASTER_MODE_LSB, 17, 3)
179e532cd04SJoe Komlodi     FIELD(I2CM_CMD, PKT_OP_EN, 16, 1)
180e532cd04SJoe Komlodi     /* 15:0 shared with I2CD_CMD[15:0] */
181e532cd04SJoe Komlodi REG32(I2CM_DMA_LEN, 0x1c)
182e532cd04SJoe Komlodi     FIELD(I2CM_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
183e532cd04SJoe Komlodi     FIELD(I2CM_DMA_LEN, RX_BUF_LEN, 16, 11)
184e532cd04SJoe Komlodi     FIELD(I2CM_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
185e532cd04SJoe Komlodi     FIELD(I2CM_DMA_LEN, TX_BUF_LEN, 0, 11)
186e532cd04SJoe Komlodi REG32(I2CS_INTR_CTRL, 0x20)
1871c5d909fSPeter Delevoryas     FIELD(I2CS_INTR_CTRL, PKT_CMD_FAIL, 17, 1)
1881c5d909fSPeter Delevoryas     FIELD(I2CS_INTR_CTRL, PKT_CMD_DONE, 16, 1)
189e532cd04SJoe Komlodi REG32(I2CS_INTR_STS, 0x24)
190e532cd04SJoe Komlodi     /* 31:29 shared with I2CD_INTR_STS[31:29] */
191e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, SLAVE_PARKING_STS, 24, 2)
192e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, SLAVE_ADDR3_NAK, 22, 1)
193e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, SLAVE_ADDR2_NAK, 21, 1)
194e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, SLAVE_ADDR1_NAK, 20, 1)
195e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, SLAVE_ADDR_INDICATOR, 18, 2)
196e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, PKT_CMD_FAIL, 17, 1)
197e532cd04SJoe Komlodi     FIELD(I2CS_INTR_STS, PKT_CMD_DONE, 16, 1)
198e532cd04SJoe Komlodi     /* 14:0 shared with I2CD_INTR_STS[14:0] */
1991c5d909fSPeter Delevoryas     FIELD(I2CS_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1)
200e532cd04SJoe Komlodi REG32(I2CS_CMD, 0x28)
201e532cd04SJoe Komlodi     FIELD(I2CS_CMD, W1_CTRL, 31, 1)
202e532cd04SJoe Komlodi     FIELD(I2CS_CMD, PKT_MODE_ACTIVE_ADDR, 17, 2)
203e532cd04SJoe Komlodi     FIELD(I2CS_CMD, PKT_MODE_EN, 16, 1)
204e532cd04SJoe Komlodi     FIELD(I2CS_CMD, AUTO_NAK_INACTIVE_ADDR, 15, 1)
205e532cd04SJoe Komlodi     FIELD(I2CS_CMD, AUTO_NAK_ACTIVE_ADDR, 14, 1)
206e532cd04SJoe Komlodi     /* 13:0 shared with I2CD_CMD[13:0] */
207e532cd04SJoe Komlodi REG32(I2CS_DMA_LEN, 0x2c)
208e532cd04SJoe Komlodi     FIELD(I2CS_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
209e532cd04SJoe Komlodi     FIELD(I2CS_DMA_LEN, RX_BUF_LEN, 16, 11)
210e532cd04SJoe Komlodi     FIELD(I2CS_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
211e532cd04SJoe Komlodi     FIELD(I2CS_DMA_LEN, TX_BUF_LEN, 0, 11)
212e532cd04SJoe Komlodi REG32(I2CM_DMA_TX_ADDR, 0x30)
213e532cd04SJoe Komlodi     FIELD(I2CM_DMA_TX_ADDR, ADDR, 0, 31)
214e532cd04SJoe Komlodi REG32(I2CM_DMA_RX_ADDR, 0x34)
215e532cd04SJoe Komlodi     FIELD(I2CM_DMA_RX_ADDR, ADDR, 0, 31)
216e532cd04SJoe Komlodi REG32(I2CS_DMA_TX_ADDR, 0x38)
217e532cd04SJoe Komlodi     FIELD(I2CS_DMA_TX_ADDR, ADDR, 0, 31)
218e532cd04SJoe Komlodi REG32(I2CS_DMA_RX_ADDR, 0x3c)
219e532cd04SJoe Komlodi     FIELD(I2CS_DMA_RX_ADDR, ADDR, 0, 31)
220e532cd04SJoe Komlodi REG32(I2CS_DEV_ADDR, 0x40)
221e532cd04SJoe Komlodi REG32(I2CM_DMA_LEN_STS, 0x48)
222e532cd04SJoe Komlodi     FIELD(I2CM_DMA_LEN_STS, RX_LEN, 16, 13)
223e532cd04SJoe Komlodi     FIELD(I2CM_DMA_LEN_STS, TX_LEN, 0, 13)
224e532cd04SJoe Komlodi REG32(I2CS_DMA_LEN_STS, 0x4c)
225e532cd04SJoe Komlodi     FIELD(I2CS_DMA_LEN_STS, RX_LEN, 16, 13)
226e532cd04SJoe Komlodi     FIELD(I2CS_DMA_LEN_STS, TX_LEN, 0, 13)
227e532cd04SJoe Komlodi REG32(I2CC_DMA_ADDR, 0x50)
228e532cd04SJoe Komlodi REG32(I2CC_DMA_LEN, 0x54)
2293dbab141SJamin Lin /* DMA 64bits */
2303dbab141SJamin Lin REG32(I2CM_DMA_TX_ADDR_HI, 0x60)
2313dbab141SJamin Lin     FIELD(I2CM_DMA_TX_ADDR_HI, ADDR_HI, 0, 7)
2323dbab141SJamin Lin REG32(I2CM_DMA_RX_ADDR_HI, 0x64)
2333dbab141SJamin Lin     FIELD(I2CM_DMA_RX_ADDR_HI, ADDR_HI, 0, 7)
2343dbab141SJamin Lin REG32(I2CS_DMA_TX_ADDR_HI, 0x68)
2353dbab141SJamin Lin     FIELD(I2CS_DMA_TX_ADDR_HI, ADDR_HI, 0, 7)
2363dbab141SJamin Lin REG32(I2CS_DMA_RX_ADDR_HI, 0x6c)
2373dbab141SJamin Lin     FIELD(I2CS_DMA_RX_ADDR_HI, ADDR_HI, 0, 7)
238e532cd04SJoe Komlodi 
23916020011SCédric Le Goater struct AspeedI2CState;
24016020011SCédric Le Goater 
24160261038SCédric Le Goater #define TYPE_ASPEED_I2C_BUS "aspeed.i2c.bus"
24260261038SCédric Le Goater OBJECT_DECLARE_SIMPLE_TYPE(AspeedI2CBus, ASPEED_I2C_BUS)
24360261038SCédric Le Goater struct AspeedI2CBus {
24460261038SCédric Le Goater     SysBusDevice parent_obj;
24560261038SCédric Le Goater 
24616020011SCédric Le Goater     struct AspeedI2CState *controller;
24716020011SCédric Le Goater 
248a8d48f59SKlaus Jensen     /* slave mode */
249a8d48f59SKlaus Jensen     I2CSlave *slave;
250a8d48f59SKlaus Jensen 
25116020011SCédric Le Goater     MemoryRegion mr;
25262c0c65dSJamin Lin     MemoryRegion mr_pool;
25316020011SCédric Le Goater 
25416020011SCédric Le Goater     I2CBus *bus;
25516020011SCédric Le Goater     uint8_t id;
25651dd4923SCédric Le Goater     qemu_irq irq;
25716020011SCédric Le Goater 
258ba2cccd6SJoe Komlodi     uint32_t regs[ASPEED_I2C_NEW_NUM_REG];
25962c0c65dSJamin Lin     uint8_t pool[ASPEED_I2C_BUS_POOL_SIZE];
260c400c388SJamin Lin     uint64_t dma_dram_offset;
26160261038SCédric Le Goater };
26216020011SCédric Le Goater 
263db1015e9SEduardo Habkost struct AspeedI2CState {
26416020011SCédric Le Goater     SysBusDevice parent_obj;
26516020011SCédric Le Goater 
26616020011SCédric Le Goater     MemoryRegion iomem;
26716020011SCédric Le Goater     qemu_irq irq;
26816020011SCédric Le Goater 
26916020011SCédric Le Goater     uint32_t intr_status;
270aab90b1cSCédric Le Goater     uint32_t ctrl_global;
271ba2cccd6SJoe Komlodi     uint32_t new_clk_divider;
2726054fc73SCédric Le Goater     MemoryRegion pool_iomem;
2735d337540SJamin Lin     uint8_t share_pool[ASPEED_I2C_SHARE_POOL_SIZE];
27416020011SCédric Le Goater 
27516020011SCédric Le Goater     AspeedI2CBus busses[ASPEED_I2C_NR_BUSSES];
276545d6befSCédric Le Goater     MemoryRegion *dram_mr;
277545d6befSCédric Le Goater     AddressSpace dram_as;
278db1015e9SEduardo Habkost };
27916020011SCédric Le Goater 
280a8d48f59SKlaus Jensen #define TYPE_ASPEED_I2C_BUS_SLAVE "aspeed.i2c.slave"
281a8d48f59SKlaus Jensen OBJECT_DECLARE_SIMPLE_TYPE(AspeedI2CBusSlave, ASPEED_I2C_BUS_SLAVE)
282a8d48f59SKlaus Jensen struct AspeedI2CBusSlave {
283a8d48f59SKlaus Jensen     I2CSlave i2c;
284a8d48f59SKlaus Jensen };
285f7da1aa8SCédric Le Goater 
286db1015e9SEduardo Habkost struct AspeedI2CClass {
287f7da1aa8SCédric Le Goater     SysBusDeviceClass parent_class;
288f7da1aa8SCédric Le Goater 
289f7da1aa8SCédric Le Goater     uint8_t num_busses;
290f7da1aa8SCédric Le Goater     uint8_t reg_size;
29194500e83SJamin Lin     uint32_t reg_gap_size;
292f7da1aa8SCédric Le Goater     uint8_t gap;
29351dd4923SCédric Le Goater     qemu_irq (*bus_get_irq)(AspeedI2CBus *);
2946054fc73SCédric Le Goater 
2956054fc73SCédric Le Goater     uint64_t pool_size;
2966054fc73SCédric Le Goater     hwaddr pool_base;
297d46a4ba0SJamin Lin     uint32_t pool_gap_size;
2986054fc73SCédric Le Goater     uint8_t *(*bus_pool_base)(AspeedI2CBus *);
299aab90b1cSCédric Le Goater     bool check_sram;
300545d6befSCédric Le Goater     bool has_dma;
30162c0c65dSJamin Lin     bool has_share_pool;
302f2202be2SJamin Lin     uint64_t mem_size;
3033dbab141SJamin Lin     bool has_dma64;
304db1015e9SEduardo Habkost };
305f7da1aa8SCédric Le Goater 
aspeed_i2c_is_new_mode(AspeedI2CState * s)306e532cd04SJoe Komlodi static inline bool aspeed_i2c_is_new_mode(AspeedI2CState *s)
307e532cd04SJoe Komlodi {
308e532cd04SJoe Komlodi     return FIELD_EX32(s->ctrl_global, I2C_CTRL_GLOBAL, REG_MODE);
309e532cd04SJoe Komlodi }
310e532cd04SJoe Komlodi 
aspeed_i2c_bus_pkt_mode_en(AspeedI2CBus * bus)311e532cd04SJoe Komlodi static inline bool aspeed_i2c_bus_pkt_mode_en(AspeedI2CBus *bus)
312e532cd04SJoe Komlodi {
313e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
314e532cd04SJoe Komlodi         return ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, PKT_OP_EN);
315e532cd04SJoe Komlodi     }
316e532cd04SJoe Komlodi     return false;
317e532cd04SJoe Komlodi }
318e532cd04SJoe Komlodi 
aspeed_i2c_bus_ctrl_offset(AspeedI2CBus * bus)319e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_ctrl_offset(AspeedI2CBus *bus)
320e532cd04SJoe Komlodi {
321e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
322e532cd04SJoe Komlodi         return R_I2CC_FUN_CTRL;
323e532cd04SJoe Komlodi     }
324e532cd04SJoe Komlodi     return R_I2CD_FUN_CTRL;
325e532cd04SJoe Komlodi }
326e532cd04SJoe Komlodi 
aspeed_i2c_bus_cmd_offset(AspeedI2CBus * bus)327e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_cmd_offset(AspeedI2CBus *bus)
328e532cd04SJoe Komlodi {
329e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
330e532cd04SJoe Komlodi         return R_I2CM_CMD;
331e532cd04SJoe Komlodi     }
332e532cd04SJoe Komlodi     return R_I2CD_CMD;
333e532cd04SJoe Komlodi }
334e532cd04SJoe Komlodi 
aspeed_i2c_bus_dev_addr_offset(AspeedI2CBus * bus)335d72a712cSKlaus Jensen static inline uint32_t aspeed_i2c_bus_dev_addr_offset(AspeedI2CBus *bus)
336d72a712cSKlaus Jensen {
337d72a712cSKlaus Jensen     if (aspeed_i2c_is_new_mode(bus->controller)) {
338d72a712cSKlaus Jensen         return R_I2CS_DEV_ADDR;
339d72a712cSKlaus Jensen     }
340d72a712cSKlaus Jensen     return R_I2CD_DEV_ADDR;
341d72a712cSKlaus Jensen }
342d72a712cSKlaus Jensen 
aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus * bus)343e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus *bus)
344e532cd04SJoe Komlodi {
345e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
346e532cd04SJoe Komlodi         return R_I2CM_INTR_CTRL;
347e532cd04SJoe Komlodi     }
348e532cd04SJoe Komlodi     return R_I2CD_INTR_CTRL;
349e532cd04SJoe Komlodi }
350e532cd04SJoe Komlodi 
aspeed_i2c_bus_intr_sts_offset(AspeedI2CBus * bus)351e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_intr_sts_offset(AspeedI2CBus *bus)
352e532cd04SJoe Komlodi {
353e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
354e532cd04SJoe Komlodi         return R_I2CM_INTR_STS;
355e532cd04SJoe Komlodi     }
356e532cd04SJoe Komlodi     return R_I2CD_INTR_STS;
357e532cd04SJoe Komlodi }
358e532cd04SJoe Komlodi 
aspeed_i2c_bus_pool_ctrl_offset(AspeedI2CBus * bus)359e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_pool_ctrl_offset(AspeedI2CBus *bus)
360e532cd04SJoe Komlodi {
361e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
362e532cd04SJoe Komlodi         return R_I2CC_POOL_CTRL;
363e532cd04SJoe Komlodi     }
364e532cd04SJoe Komlodi     return R_I2CD_POOL_CTRL;
365e532cd04SJoe Komlodi }
366e532cd04SJoe Komlodi 
aspeed_i2c_bus_byte_buf_offset(AspeedI2CBus * bus)367e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_byte_buf_offset(AspeedI2CBus *bus)
368e532cd04SJoe Komlodi {
369e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
370e532cd04SJoe Komlodi         return R_I2CC_MS_TXRX_BYTE_BUF;
371e532cd04SJoe Komlodi     }
372e532cd04SJoe Komlodi     return R_I2CD_BYTE_BUF;
373e532cd04SJoe Komlodi }
374e532cd04SJoe Komlodi 
aspeed_i2c_bus_dma_len_offset(AspeedI2CBus * bus)375e532cd04SJoe Komlodi static inline uint32_t aspeed_i2c_bus_dma_len_offset(AspeedI2CBus *bus)
376e532cd04SJoe Komlodi {
377e532cd04SJoe Komlodi     if (aspeed_i2c_is_new_mode(bus->controller)) {
378e532cd04SJoe Komlodi         return R_I2CC_DMA_LEN;
379e532cd04SJoe Komlodi     }
380e532cd04SJoe Komlodi     return R_I2CD_DMA_LEN;
381e532cd04SJoe Komlodi }
382e532cd04SJoe Komlodi 
aspeed_i2c_bus_is_master(AspeedI2CBus * bus)383e532cd04SJoe Komlodi static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
384e532cd04SJoe Komlodi {
385e532cd04SJoe Komlodi     return SHARED_ARRAY_FIELD_EX32(bus->regs, aspeed_i2c_bus_ctrl_offset(bus),
386e532cd04SJoe Komlodi                                    MASTER_EN);
387e532cd04SJoe Komlodi }
388e532cd04SJoe Komlodi 
aspeed_i2c_bus_is_enabled(AspeedI2CBus * bus)389e532cd04SJoe Komlodi static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
390e532cd04SJoe Komlodi {
391e532cd04SJoe Komlodi     uint32_t ctrl_reg = aspeed_i2c_bus_ctrl_offset(bus);
392e532cd04SJoe Komlodi     return SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, MASTER_EN) ||
393e532cd04SJoe Komlodi            SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, SLAVE_EN);
394e532cd04SJoe Komlodi }
395e532cd04SJoe Komlodi 
3967a204cbdSPhilippe Mathieu-Daudé I2CBus *aspeed_i2c_get_bus(AspeedI2CState *s, int busnr);
39716020011SCédric Le Goater 
39816020011SCédric Le Goater #endif /* ASPEED_I2C_H */
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