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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Internal header file for QE TDM mode routines.
*
* Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
*
* Authors: Zhao Qiang <[email protected]>
*/
#ifndef _QE_TDM_H_
#define _QE_TDM_H_
#include <linux/kernel.h>
#include <linux/list.h>
#include <soc/fsl/qe/immap_qe.h>
#include <soc/fsl/qe/qe.h>
#include <soc/fsl/qe/ucc.h>
#include <soc/fsl/qe/ucc_fast.h>
/* SI RAM entries */
#define SIR_LAST 0x0001
#define SIR_BYTE 0x0002
#define SIR_CNT(x) ((x) << 2)
#define SIR_CSEL(x) ((x) << 5)
#define SIR_SGS 0x0200
#define SIR_SWTR 0x4000
#define SIR_MCC 0x8000
#define SIR_IDLE 0
/* SIxMR fields */
#define SIMR_SAD(x) ((x) << 12)
#define SIMR_SDM_NORMAL 0x0000
#define SIMR_SDM_INTERNAL_LOOPBACK 0x0800
#define SIMR_SDM_MASK 0x0c00
#define SIMR_CRT 0x0040
#define SIMR_SL 0x0020
#define SIMR_CE 0x0010
#define SIMR_FE 0x0008
#define SIMR_GM 0x0004
#define SIMR_TFSD(n) (n)
#define SIMR_RFSD(n) ((n) << 8)
enum tdm_ts_t {
TDM_TX_TS,
TDM_RX_TS
};
enum tdm_framer_t {
TDM_FRAMER_T1,
TDM_FRAMER_E1
};
enum tdm_mode_t {
TDM_INTERNAL_LOOPBACK,
TDM_NORMAL
};
struct si_mode_info {
u8 simr_rfsd;
u8 simr_tfsd;
u8 simr_crt;
u8 simr_sl;
u8 simr_ce;
u8 simr_fe;
u8 simr_gm;
};
struct ucc_tdm_info {
struct ucc_fast_info uf_info;
struct si_mode_info si_info;
};
struct ucc_tdm {
u16 tdm_port; /* port for this tdm:TDMA,TDMB */
u32 siram_entry_id;
u16 __iomem *siram;
struct si1 __iomem *si_regs;
enum tdm_framer_t tdm_framer_type;
enum tdm_mode_t tdm_mode;
u8 num_of_ts; /* the number of timeslots in this tdm frame */
u32 tx_ts_mask; /* tx time slot mask */
u32 rx_ts_mask; /* rx time slot mask */
};
int ucc_of_parse_tdm(struct device_node *np, struct ucc_tdm *utdm,
struct ucc_tdm_info *ut_info);
void ucc_tdm_init(struct ucc_tdm *utdm, struct ucc_tdm_info *ut_info);
#endif