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Linux kernel mirror (for testing)
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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/kernel.h>
14#include <linux/list.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
22/* SI RAM entries */
23#define SIR_LAST 0x0001
24#define SIR_BYTE 0x0002
25#define SIR_CNT(x) ((x) << 2)
26#define SIR_CSEL(x) ((x) << 5)
27#define SIR_SGS 0x0200
28#define SIR_SWTR 0x4000
29#define SIR_MCC 0x8000
30#define SIR_IDLE 0
31
32/* SIxMR fields */
33#define SIMR_SAD(x) ((x) << 12)
34#define SIMR_SDM_NORMAL 0x0000
35#define SIMR_SDM_INTERNAL_LOOPBACK 0x0800
36#define SIMR_SDM_MASK 0x0c00
37#define SIMR_CRT 0x0040
38#define SIMR_SL 0x0020
39#define SIMR_CE 0x0010
40#define SIMR_FE 0x0008
41#define SIMR_GM 0x0004
42#define SIMR_TFSD(n) (n)
43#define SIMR_RFSD(n) ((n) << 8)
44
45enum tdm_ts_t {
46 TDM_TX_TS,
47 TDM_RX_TS
48};
49
50enum tdm_framer_t {
51 TDM_FRAMER_T1,
52 TDM_FRAMER_E1
53};
54
55enum tdm_mode_t {
56 TDM_INTERNAL_LOOPBACK,
57 TDM_NORMAL
58};
59
60struct si_mode_info {
61 u8 simr_rfsd;
62 u8 simr_tfsd;
63 u8 simr_crt;
64 u8 simr_sl;
65 u8 simr_ce;
66 u8 simr_fe;
67 u8 simr_gm;
68};
69
70struct ucc_tdm_info {
71 struct ucc_fast_info uf_info;
72 struct si_mode_info si_info;
73};
74
75struct ucc_tdm {
76 u16 tdm_port; /* port for this tdm:TDMA,TDMB */
77 u32 siram_entry_id;
78 u16 __iomem *siram;
79 struct si1 __iomem *si_regs;
80 enum tdm_framer_t tdm_framer_type;
81 enum tdm_mode_t tdm_mode;
82 u8 num_of_ts; /* the number of timeslots in this tdm frame */
83 u32 tx_ts_mask; /* tx time slot mask */
84 u32 rx_ts_mask; /* rx time slot mask */
85};
86
87int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
88 struct ucc_tdm_info *ut_info);
89void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info);
90#endif