2 * (C) Copyright 2007-2009
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #define IIC_NOK_LA 2 /* Lost arbitration */
30 #define IIC_NOK_ICT 3 /* Incomplete transfer */
31 #define IIC_NOK_XFRA 4 /* Transfer aborted */
32 #define IIC_NOK_DATA 5 /* No data in buffer */
33 #define IIC_NOK_TOUT 6 /* Transfer timeout */
35 #define IIC_TIMEOUT 1 /* 1 second */
58 /* MDCNTL Register Bit definition */
59 #define IIC_MDCNTL_HSCL 0x01
60 #define IIC_MDCNTL_EUBS 0x02
61 #define IIC_MDCNTL_EINT 0x04
62 #define IIC_MDCNTL_ESM 0x08
63 #define IIC_MDCNTL_FSM 0x10
64 #define IIC_MDCNTL_EGC 0x20
65 #define IIC_MDCNTL_FMDB 0x40
66 #define IIC_MDCNTL_FSDB 0x80
68 /* CNTL Register Bit definition */
69 #define IIC_CNTL_PT 0x01
70 #define IIC_CNTL_READ 0x02
71 #define IIC_CNTL_CHT 0x04
72 #define IIC_CNTL_RPST 0x08
73 /* bit 2/3 for Transfer count*/
74 #define IIC_CNTL_AMD 0x40
75 #define IIC_CNTL_HMT 0x80
77 /* STS Register Bit definition */
78 #define IIC_STS_PT 0x01
79 #define IIC_STS_IRQA 0x02
80 #define IIC_STS_ERR 0x04
81 #define IIC_STS_SCMP 0x08
82 #define IIC_STS_MDBF 0x10
83 #define IIC_STS_MDBS 0x20
84 #define IIC_STS_SLPR 0x40
85 #define IIC_STS_SSS 0x80
87 /* EXTSTS Register Bit definition */
88 #define IIC_EXTSTS_XFRA 0x01
89 #define IIC_EXTSTS_ICT 0x02
90 #define IIC_EXTSTS_LA 0x04
92 /* XTCNTLSS Register Bit definition */
93 #define IIC_XTCNTLSS_SRST 0x01
94 #define IIC_XTCNTLSS_EPI 0x02
95 #define IIC_XTCNTLSS_SDBF 0x04
96 #define IIC_XTCNTLSS_SBDD 0x08
97 #define IIC_XTCNTLSS_SWS 0x10
98 #define IIC_XTCNTLSS_SWC 0x20
99 #define IIC_XTCNTLSS_SRS 0x40
100 #define IIC_XTCNTLSS_SRC 0x80
102 /* IICx_DIRECTCNTL register */
103 #define IIC_DIRCNTL_SDAC 0x08
104 #define IIC_DIRCNTL_SCC 0x04
105 #define IIC_DIRCNTL_MSDA 0x02
106 #define IIC_DIRCNTL_MSC 0x01
108 #define DIRCTNL_FREE(v) (((v) & 0x0f) == 0x0f)