1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Internal header file for QE TDM mode routines.
4 *
5 * Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
6 *
7 * Authors: Zhao Qiang <qiang.zhao@nxp.com>
8 */
9
10#ifndef _QE_TDM_H_
11#define _QE_TDM_H_
12
13#include <linux/list.h>
14#include <linux/types.h>
15
16#include <soc/fsl/qe/immap_qe.h>
17#include <soc/fsl/qe/qe.h>
18
19#include <soc/fsl/qe/ucc.h>
20#include <soc/fsl/qe/ucc_fast.h>
21
22struct device_node;
23
24/* SI RAM entries */
25#define SIR_LAST 0x0001
26#define SIR_BYTE 0x0002
27#define SIR_CNT(x) ((x) << 2)
28#define SIR_CSEL(x) ((x) << 5)
29#define SIR_SGS 0x0200
30#define SIR_SWTR 0x4000
31#define SIR_MCC 0x8000
32#define SIR_IDLE 0
33
34/* SIxMR fields */
35#define SIMR_SAD(x) ((x) << 12)
36#define SIMR_SDM_NORMAL 0x0000
37#define SIMR_SDM_INTERNAL_LOOPBACK 0x0800
38#define SIMR_SDM_MASK 0x0c00
39#define SIMR_CRT 0x0040
40#define SIMR_SL 0x0020
41#define SIMR_CE 0x0010
42#define SIMR_FE 0x0008
43#define SIMR_GM 0x0004
44#define SIMR_TFSD(n) (n)
45#define SIMR_RFSD(n) ((n) << 8)
46
47enum tdm_ts_t {
48 TDM_TX_TS,
49 TDM_RX_TS
50};
51
52enum tdm_framer_t {
53 TDM_FRAMER_T1,
54 TDM_FRAMER_E1
55};
56
57enum tdm_mode_t {
58 TDM_INTERNAL_LOOPBACK,
59 TDM_NORMAL
60};
61
62struct si_mode_info {
63 u8 simr_rfsd;
64 u8 simr_tfsd;
65 u8 simr_crt;
66 u8 simr_sl;
67 u8 simr_ce;
68 u8 simr_fe;
69 u8 simr_gm;
70};
71
72struct ucc_tdm_info {
73 struct ucc_fast_info uf_info;
74 struct si_mode_info si_info;
75};
76
77struct ucc_tdm {
78 u16 tdm_port; /* port for this tdm:TDMA,TDMB */
79 u32 siram_entry_id;
80 u16 __iomem *siram;
81 struct si1 __iomem *si_regs;
82 enum tdm_framer_t tdm_framer_type;
83 enum tdm_mode_t tdm_mode;
84 u8 num_of_ts; /* the number of timeslots in this tdm frame */
85 u32 tx_ts_mask; /* tx time slot mask */
86 u32 rx_ts_mask; /* rx time slot mask */
87};
88
89int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
90 struct ucc_tdm_info *ut_info);
91void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info);
92#endif
93

source code of linux/include/soc/fsl/qe/qe_tdm.h