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 45 enum tdm_ts_t { 46 TDM_TX_TS, 47 TDM_RX_TS 48 }; 49 50 enum tdm_framer_t { 51 TDM_FRAMER_T1, 52 TDM_FRAMER_E1 53 }; 54 55 enum tdm_mode_t { 56 TDM_INTERNAL_LOOPBACK, 57 TDM_NORMAL 58 }; 59 60 struct 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 70 struct ucc_tdm_info { 71 struct ucc_fast_info uf_info; 72 struct si_mode_info si_info; 73 }; 74 75 struct 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 87 int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm, 88 struct ucc_tdm_info *ut_info); 89 void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info); 90 #endif 91