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 22 struct 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 47 enum tdm_ts_t { 48 TDM_TX_TS, 49 TDM_RX_TS 50 }; 51 52 enum tdm_framer_t { 53 TDM_FRAMER_T1, 54 TDM_FRAMER_E1 55 }; 56 57 enum tdm_mode_t { 58 TDM_INTERNAL_LOOPBACK, 59 TDM_NORMAL 60 }; 61 62 struct 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 72 struct ucc_tdm_info { 73 struct ucc_fast_info uf_info; 74 struct si_mode_info si_info; 75 }; 76 77 struct 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 89 int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm, 90 struct ucc_tdm_info *ut_info); 91 void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info); 92 #endif 93