uccf.h
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/*
* Copyright (C) 2006 Freescale Semiconductor, Inc.
*
* Dave Liu <daveliu@freescale.com>
* based on source code of Shlomi Gridish
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __UCCF_H__
#define __UCCF_H__
#include "common.h"
#include "qe.h"
#include "linux/immap_qe.h"
/* Fast or Giga ethernet
*/
typedef enum enet_type {
FAST_ETH,
GIGA_ETH,
} enet_type_e;
/* General UCC Extended Mode Register
*/
#define UCC_GUEMR_MODE_MASK_RX 0x02
#define UCC_GUEMR_MODE_MASK_TX 0x01
#define UCC_GUEMR_MODE_FAST_RX 0x02
#define UCC_GUEMR_MODE_FAST_TX 0x01
#define UCC_GUEMR_MODE_SLOW_RX 0x00
#define UCC_GUEMR_MODE_SLOW_TX 0x00
#define UCC_GUEMR_SET_RESERVED3 0x10 /* Bit 3 must be set 1 */
/* General UCC FAST Mode Register
*/
#define UCC_FAST_GUMR_TCI 0x20000000
#define UCC_FAST_GUMR_TRX 0x10000000
#define UCC_FAST_GUMR_TTX 0x08000000
#define UCC_FAST_GUMR_CDP 0x04000000
#define UCC_FAST_GUMR_CTSP 0x02000000
#define UCC_FAST_GUMR_CDS 0x01000000
#define UCC_FAST_GUMR_CTSS 0x00800000
#define UCC_FAST_GUMR_TXSY 0x00020000
#define UCC_FAST_GUMR_RSYN 0x00010000
#define UCC_FAST_GUMR_RTSM 0x00002000
#define UCC_FAST_GUMR_REVD 0x00000400
#define UCC_FAST_GUMR_ENR 0x00000020
#define UCC_FAST_GUMR_ENT 0x00000010
/* GUMR [MODE] bit maps
*/
#define UCC_FAST_GUMR_HDLC 0x00000000
#define UCC_FAST_GUMR_QMC 0x00000002
#define UCC_FAST_GUMR_UART 0x00000004
#define UCC_FAST_GUMR_BISYNC 0x00000008
#define UCC_FAST_GUMR_ATM 0x0000000a
#define UCC_FAST_GUMR_ETH 0x0000000c
/* Transmit On Demand (UTORD)
*/
#define UCC_SLOW_TOD 0x8000
#define UCC_FAST_TOD 0x8000
/* Fast Ethernet (10/100 Mbps)
*/
#define UCC_GETH_URFS_INIT 512 /* Rx virtual FIFO size */
#define UCC_GETH_URFET_INIT 256 /* 1/2 urfs */
#define UCC_GETH_URFSET_INIT 384 /* 3/4 urfs */
#define UCC_GETH_UTFS_INIT 512 /* Tx virtual FIFO size */
#define UCC_GETH_UTFET_INIT 256 /* 1/2 utfs */
#define UCC_GETH_UTFTT_INIT 128
/* Gigabit Ethernet (1000 Mbps)
*/
#define UCC_GETH_URFS_GIGA_INIT 4096/*2048*/ /* Rx virtual FIFO size */
#define UCC_GETH_URFET_GIGA_INIT 2048/*1024*/ /* 1/2 urfs */
#define UCC_GETH_URFSET_GIGA_INIT 3072/*1536*/ /* 3/4 urfs */
#define UCC_GETH_UTFS_GIGA_INIT 8192/*2048*/ /* Tx virtual FIFO size */
#define UCC_GETH_UTFET_GIGA_INIT 4096/*1024*/ /* 1/2 utfs */
#define UCC_GETH_UTFTT_GIGA_INIT 0x400/*0x40*/ /* */
/* UCC fast alignment
*/
#define UCC_FAST_RX_ALIGN 4
#define UCC_FAST_MRBLR_ALIGNMENT 4
#define UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT 8
/* Sizes
*/
#define UCC_FAST_RX_VIRTUAL_FIFO_SIZE_PAD 8
/* UCC fast structure.
*/
typedef struct ucc_fast_info {
int ucc_num;
qe_clock_e rx_clock;
qe_clock_e tx_clock;
enet_type_e eth_type;
} ucc_fast_info_t;
typedef struct ucc_fast_private {
ucc_fast_info_t *uf_info;
ucc_fast_t *uf_regs; /* a pointer to memory map of UCC regs */
u32 *p_ucce; /* a pointer to the event register */
u32 *p_uccm; /* a pointer to the mask register */
int enabled_tx; /* whether UCC is enabled for Tx (ENT) */
int enabled_rx; /* whether UCC is enabled for Rx (ENR) */
u32 ucc_fast_tx_virtual_fifo_base_offset;
u32 ucc_fast_rx_virtual_fifo_base_offset;
} ucc_fast_private_t;
void ucc_fast_transmit_on_demand(ucc_fast_private_t *uccf);
u32 ucc_fast_get_qe_cr_subblock(int ucc_num);
void ucc_fast_enable(ucc_fast_private_t *uccf, comm_dir_e mode);
void ucc_fast_disable(ucc_fast_private_t *uccf, comm_dir_e mode);
int ucc_fast_init(ucc_fast_info_t *uf_info, ucc_fast_private_t **uccf_ret);
#endif /* __UCCF_H__ */