247 lines
7.2 KiB
C
247 lines
7.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright (C) 2021 Gerhard Engleder <gerhard@engleder-embedded.com> */
|
|
|
|
/* Hardware definition of TSNEP and EtherCAT MAC device */
|
|
|
|
#ifndef _TSNEP_HW_H
|
|
#define _TSNEP_HW_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/* type */
|
|
#define ECM_TYPE 0x0000
|
|
#define ECM_REVISION_MASK 0x000000FF
|
|
#define ECM_REVISION_SHIFT 0
|
|
#define ECM_VERSION_MASK 0x0000FF00
|
|
#define ECM_VERSION_SHIFT 8
|
|
#define ECM_QUEUE_COUNT_MASK 0x00070000
|
|
#define ECM_QUEUE_COUNT_SHIFT 16
|
|
#define ECM_GATE_CONTROL 0x02000000
|
|
|
|
/* system time */
|
|
#define ECM_SYSTEM_TIME_LOW 0x0008
|
|
#define ECM_SYSTEM_TIME_HIGH 0x000C
|
|
|
|
/* clock */
|
|
#define ECM_CLOCK_RATE 0x0010
|
|
#define ECM_CLOCK_RATE_OFFSET_MASK 0x7FFFFFFF
|
|
#define ECM_CLOCK_RATE_OFFSET_SIGN 0x80000000
|
|
|
|
/* interrupt */
|
|
#define ECM_INT_ENABLE 0x0018
|
|
#define ECM_INT_ACTIVE 0x001C
|
|
#define ECM_INT_ACKNOWLEDGE 0x001C
|
|
#define ECM_INT_LINK 0x00000020
|
|
#define ECM_INT_TX_0 0x00000100
|
|
#define ECM_INT_RX_0 0x00000200
|
|
#define ECM_INT_TXRX_SHIFT 2
|
|
#define ECM_INT_ALL 0x7FFFFFFF
|
|
#define ECM_INT_DISABLE 0x80000000
|
|
|
|
/* reset */
|
|
#define ECM_RESET 0x0020
|
|
#define ECM_RESET_COMMON 0x00000001
|
|
#define ECM_RESET_CHANNEL 0x00000100
|
|
#define ECM_RESET_TXRX 0x00010000
|
|
|
|
/* counter */
|
|
#define ECM_COUNTER_LOW 0x0028
|
|
#define ECM_COUNTER_HIGH 0x002C
|
|
|
|
/* interrupt delay */
|
|
#define ECM_INT_DELAY 0x0030
|
|
#define ECM_INT_DELAY_MASK 0xF0
|
|
#define ECM_INT_DELAY_SHIFT 4
|
|
#define ECM_INT_DELAY_BASE_US 16
|
|
#define ECM_INT_DELAY_OFFSET 1
|
|
|
|
/* control and status */
|
|
#define ECM_STATUS 0x0080
|
|
#define ECM_LINK_MODE_OFF 0x01000000
|
|
#define ECM_LINK_MODE_100 0x02000000
|
|
#define ECM_LINK_MODE_1000 0x04000000
|
|
#define ECM_NO_LINK 0x01000000
|
|
#define ECM_LINK_MODE_MASK 0x06000000
|
|
|
|
/* management data */
|
|
#define ECM_MD_CONTROL 0x0084
|
|
#define ECM_MD_STATUS 0x0084
|
|
#define ECM_MD_PREAMBLE 0x00000001
|
|
#define ECM_MD_READ 0x00000004
|
|
#define ECM_MD_WRITE 0x00000002
|
|
#define ECM_MD_ADDR_MASK 0x000000F8
|
|
#define ECM_MD_ADDR_SHIFT 3
|
|
#define ECM_MD_PHY_ADDR_MASK 0x00001F00
|
|
#define ECM_MD_PHY_ADDR_SHIFT 8
|
|
#define ECM_MD_BUSY 0x00000001
|
|
#define ECM_MD_DATA_MASK 0xFFFF0000
|
|
#define ECM_MD_DATA_SHIFT 16
|
|
|
|
/* statistic */
|
|
#define ECM_STAT 0x00B0
|
|
#define ECM_STAT_RX_ERR_MASK 0x000000FF
|
|
#define ECM_STAT_RX_ERR_SHIFT 0
|
|
#define ECM_STAT_INV_FRM_MASK 0x0000FF00
|
|
#define ECM_STAT_INV_FRM_SHIFT 8
|
|
#define ECM_STAT_FWD_RX_ERR_MASK 0x00FF0000
|
|
#define ECM_STAT_FWD_RX_ERR_SHIFT 16
|
|
|
|
/* tsnep */
|
|
#define TSNEP_MAC_SIZE 0x4000
|
|
#define TSNEP_QUEUE_SIZE 0x1000
|
|
#define TSNEP_QUEUE(n) ({ typeof(n) __n = (n); \
|
|
(__n) == 0 ? \
|
|
0 : \
|
|
TSNEP_MAC_SIZE + TSNEP_QUEUE_SIZE * ((__n) - 1); })
|
|
#define TSNEP_MAX_QUEUES 8
|
|
#define TSNEP_MAX_FRAME_SIZE (2 * 1024) /* hardware supports actually 16k */
|
|
#define TSNEP_DESC_SIZE 256
|
|
#define TSNEP_DESC_OFFSET 128
|
|
|
|
/* tsnep register */
|
|
#define TSNEP_INFO 0x0100
|
|
#define TSNEP_INFO_TX_TIME 0x00010000
|
|
#define TSNEP_CONTROL 0x0108
|
|
#define TSNEP_CONTROL_TX_RESET 0x00000001
|
|
#define TSNEP_CONTROL_TX_ENABLE 0x00000002
|
|
#define TSNEP_CONTROL_TX_DMA_ERROR 0x00000010
|
|
#define TSNEP_CONTROL_TX_DESC_ERROR 0x00000020
|
|
#define TSNEP_CONTROL_RX_RESET 0x00000100
|
|
#define TSNEP_CONTROL_RX_ENABLE 0x00000200
|
|
#define TSNEP_CONTROL_RX_DISABLE 0x00000400
|
|
#define TSNEP_CONTROL_RX_DMA_ERROR 0x00001000
|
|
#define TSNEP_CONTROL_RX_DESC_ERROR 0x00002000
|
|
#define TSNEP_TX_DESC_ADDR_LOW 0x0140
|
|
#define TSNEP_TX_DESC_ADDR_HIGH 0x0144
|
|
#define TSNEP_RX_DESC_ADDR_LOW 0x0180
|
|
#define TSNEP_RX_DESC_ADDR_HIGH 0x0184
|
|
#define TSNEP_RESET_OWNER_COUNTER 0x01
|
|
#define TSNEP_RX_STATISTIC 0x0190
|
|
#define TSNEP_RX_STATISTIC_NO_DESC_MASK 0x000000FF
|
|
#define TSNEP_RX_STATISTIC_NO_DESC_SHIFT 0
|
|
#define TSNEP_RX_STATISTIC_BUFFER_TOO_SMALL_MASK 0x0000FF00
|
|
#define TSNEP_RX_STATISTIC_BUFFER_TOO_SMALL_SHIFT 8
|
|
#define TSNEP_RX_STATISTIC_FIFO_OVERFLOW_MASK 0x00FF0000
|
|
#define TSNEP_RX_STATISTIC_FIFO_OVERFLOW_SHIFT 16
|
|
#define TSNEP_RX_STATISTIC_INVALID_FRAME_MASK 0xFF000000
|
|
#define TSNEP_RX_STATISTIC_INVALID_FRAME_SHIFT 24
|
|
#define TSNEP_RX_STATISTIC_NO_DESC 0x0190
|
|
#define TSNEP_RX_STATISTIC_BUFFER_TOO_SMALL 0x0191
|
|
#define TSNEP_RX_STATISTIC_FIFO_OVERFLOW 0x0192
|
|
#define TSNEP_RX_STATISTIC_INVALID_FRAME 0x0193
|
|
#define TSNEP_MAC_ADDRESS_LOW 0x0800
|
|
#define TSNEP_MAC_ADDRESS_HIGH 0x0804
|
|
#define TSNEP_RX_FILTER 0x0806
|
|
#define TSNEP_RX_FILTER_ACCEPT_ALL_MULTICASTS 0x0001
|
|
#define TSNEP_RX_FILTER_ACCEPT_ALL_UNICASTS 0x0002
|
|
#define TSNEP_GC 0x0808
|
|
#define TSNEP_GC_ENABLE_A 0x00000002
|
|
#define TSNEP_GC_ENABLE_B 0x00000004
|
|
#define TSNEP_GC_DISABLE 0x00000008
|
|
#define TSNEP_GC_ENABLE_TIMEOUT 0x00000010
|
|
#define TSNEP_GC_ACTIVE_A 0x00000002
|
|
#define TSNEP_GC_ACTIVE_B 0x00000004
|
|
#define TSNEP_GC_CHANGE_AB 0x00000008
|
|
#define TSNEP_GC_TIMEOUT_ACTIVE 0x00000010
|
|
#define TSNEP_GC_TIMEOUT_SIGNAL 0x00000020
|
|
#define TSNEP_GC_LIST_ERROR 0x00000080
|
|
#define TSNEP_GC_OPEN 0x00FF0000
|
|
#define TSNEP_GC_OPEN_SHIFT 16
|
|
#define TSNEP_GC_NEXT_OPEN 0xFF000000
|
|
#define TSNEP_GC_NEXT_OPEN_SHIFT 24
|
|
#define TSNEP_GC_TIMEOUT 131072
|
|
#define TSNEP_GC_TIME 0x080C
|
|
#define TSNEP_GC_CHANGE 0x0810
|
|
#define TSNEP_GCL_A 0x2000
|
|
#define TSNEP_GCL_B 0x2800
|
|
#define TSNEP_GCL_SIZE SZ_2K
|
|
#define TSNEP_RX_ASSIGN 0x0840
|
|
#define TSNEP_RX_ASSIGN_ACTIVE 0x00000001
|
|
#define TSNEP_RX_ASSIGN_QUEUE_MASK 0x00000006
|
|
#define TSNEP_RX_ASSIGN_QUEUE_SHIFT 1
|
|
#define TSNEP_RX_ASSIGN_OFFSET 1
|
|
#define TSNEP_RX_ASSIGN_ETHER_TYPE 0x0880
|
|
#define TSNEP_RX_ASSIGN_ETHER_TYPE_OFFSET 2
|
|
#define TSNEP_RX_ASSIGN_ETHER_TYPE_COUNT 2
|
|
|
|
/* tsnep gate control list operation */
|
|
struct tsnep_gcl_operation {
|
|
u32 properties;
|
|
u32 interval;
|
|
};
|
|
|
|
#define TSNEP_GCL_COUNT (TSNEP_GCL_SIZE / sizeof(struct tsnep_gcl_operation))
|
|
#define TSNEP_GCL_MASK 0x000000FF
|
|
#define TSNEP_GCL_INSERT 0x20000000
|
|
#define TSNEP_GCL_CHANGE 0x40000000
|
|
#define TSNEP_GCL_LAST 0x80000000
|
|
#define TSNEP_GCL_MIN_INTERVAL 32
|
|
|
|
/* tsnep TX/RX descriptor */
|
|
#define TSNEP_DESC_SIZE 256
|
|
#define TSNEP_DESC_SIZE_DATA_AFTER 2048
|
|
#define TSNEP_DESC_OFFSET 128
|
|
#define TSNEP_DESC_OWNER_COUNTER_MASK 0xC0000000
|
|
#define TSNEP_DESC_OWNER_COUNTER_SHIFT 30
|
|
#define TSNEP_DESC_LENGTH_MASK 0x00003FFF
|
|
#define TSNEP_DESC_INTERRUPT_FLAG 0x00040000
|
|
#define TSNEP_DESC_EXTENDED_WRITEBACK_FLAG 0x00080000
|
|
#define TSNEP_DESC_NO_LINK_FLAG 0x01000000
|
|
|
|
/* tsnep TX descriptor */
|
|
struct tsnep_tx_desc {
|
|
__le32 properties;
|
|
__le32 more_properties;
|
|
__le32 reserved[2];
|
|
__le64 next;
|
|
__le64 tx;
|
|
};
|
|
|
|
#define TSNEP_TX_DESC_OWNER_MASK 0xE0000000
|
|
#define TSNEP_TX_DESC_OWNER_USER_FLAG 0x20000000
|
|
#define TSNEP_TX_DESC_LAST_FRAGMENT_FLAG 0x00010000
|
|
#define TSNEP_TX_DESC_DATA_AFTER_DESC_FLAG 0x00020000
|
|
|
|
/* tsnep TX descriptor writeback */
|
|
struct tsnep_tx_desc_wb {
|
|
__le32 properties;
|
|
__le32 reserved1;
|
|
__le64 counter;
|
|
__le64 timestamp;
|
|
__le32 dma_delay;
|
|
__le32 reserved2;
|
|
};
|
|
|
|
#define TSNEP_TX_DESC_UNDERRUN_ERROR_FLAG 0x00010000
|
|
#define TSNEP_TX_DESC_DMA_DELAY_FIRST_DATA_MASK 0x0000FFFC
|
|
#define TSNEP_TX_DESC_DMA_DELAY_FIRST_DATA_SHIFT 2
|
|
#define TSNEP_TX_DESC_DMA_DELAY_LAST_DATA_MASK 0xFFFC0000
|
|
#define TSNEP_TX_DESC_DMA_DELAY_LAST_DATA_SHIFT 18
|
|
#define TSNEP_TX_DESC_DMA_DELAY_NS 64
|
|
|
|
/* tsnep RX descriptor */
|
|
struct tsnep_rx_desc {
|
|
__le32 properties;
|
|
__le32 reserved[3];
|
|
__le64 next;
|
|
__le64 rx;
|
|
};
|
|
|
|
#define TSNEP_RX_DESC_BUFFER_SIZE_MASK 0x00003FFC
|
|
|
|
/* tsnep RX descriptor writeback */
|
|
struct tsnep_rx_desc_wb {
|
|
__le32 properties;
|
|
__le32 reserved[7];
|
|
};
|
|
|
|
/* tsnep RX inline meta */
|
|
struct tsnep_rx_inline {
|
|
__le64 counter;
|
|
__le64 timestamp;
|
|
};
|
|
|
|
#define TSNEP_RX_INLINE_METADATA_SIZE (sizeof(struct tsnep_rx_inline))
|
|
|
|
#endif /* _TSNEP_HW_H */
|