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/* SPDX-License-Identifier: GPL-2.0-only */
/*******************************************************************************
Copyright (C) 2007-2009 STMicroelectronics Ltd
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
#ifndef __DWMAC1000_H__
#define __DWMAC1000_H__
#include <linux/phy.h>
#include "common.h"
#define GMAC_CONTROL 0x00000000 /* Configuration */
#define GMAC_FRAME_FILTER 0x00000004 /* Frame Filter */
#define GMAC_HASH_HIGH 0x00000008 /* Multicast Hash Table High */
#define GMAC_HASH_LOW 0x0000000c /* Multicast Hash Table Low */
#define GMAC_MII_ADDR 0x00000010 /* MII Address */
#define GMAC_MII_DATA 0x00000014 /* MII Data */
#define GMAC_FLOW_CTRL 0x00000018 /* Flow Control */
#define GMAC_VLAN_TAG 0x0000001c /* VLAN Tag */
#define GMAC_DEBUG 0x00000024 /* GMAC debug register */
#define GMAC_INT_STATUS 0x00000038 /* interrupt status register */
#define GMAC_INT_STATUS_MMCRIS BIT(5)
#define GMAC_INT_STATUS_MMCTIS BIT(6)
#define GMAC_INT_STATUS_MMCCSUM BIT(7)
#define GMAC_INT_STATUS_LPIIS BIT(10)
/* interrupt mask register */
#define GMAC_INT_MASK 0x0000003c
#define GMAC_INT_DISABLE_RGMII BIT(0)
#define GMAC_INT_DISABLE_PCSLINK BIT(1)
#define GMAC_INT_DISABLE_PCSAN BIT(2)
#define GMAC_INT_DISABLE_PMT BIT(3)
#define GMAC_INT_DISABLE_TIMESTAMP BIT(9)
#define GMAC_INT_DEFAULT_MASK (GMAC_INT_DISABLE_RGMII | \
GMAC_INT_DISABLE_PCSLINK | \
GMAC_INT_DISABLE_PCSAN | \
GMAC_INT_DISABLE_TIMESTAMP)
/* PMT Control and Status */
#define GMAC_PMT 0x0000002c
enum power_event {
pointer_reset = 0x80000000,
global_unicast = 0x00000200,
wake_up_rx_frame = 0x00000040,
magic_frame = 0x00000020,
wake_up_frame_en = 0x00000004,
magic_pkt_en = 0x00000002,
power_down = 0x00000001,
};
/* Energy Efficient Ethernet (EEE)
*
* LPI status, timer and control register offset
* For LPI control and status bit definitions, see common.h.
*/
#define LPI_CTRL_STATUS 0x0030
#define LPI_TIMER_CTRL 0x0034
/* GMAC HW ADDR regs */
#define GMAC_ADDR_HIGH(reg) ((reg > 15) ? 0x00000800 + (reg - 16) * 8 : \
0x00000040 + (reg * 8))
#define GMAC_ADDR_LOW(reg) ((reg > 15) ? 0x00000804 + (reg - 16) * 8 : \
0x00000044 + (reg * 8))
#define GMAC_MAX_PERFECT_ADDRESSES 1
#define GMAC_PCS_BASE 0x000000c0 /* PCS register base */
#define GMAC_RGSMIIIS 0x000000d8 /* RGMII/SMII status */
/* SGMII/RGMII status register */
#define GMAC_RSGMIIIS_MASK GENMASK(15, 0)
#define GMAC_RGSMIIIS_SMIDRXS BIT(16)
/* GMAC Configuration defines */
#define GMAC_CONTROL_2K 0x08000000 /* IEEE 802.3as 2K packets */
#define GMAC_CONTROL_JD 0x00400000 /* Jabber disable */
#define GMAC_CONTROL_BE 0x00200000 /* Frame Burst Enable */
#define GMAC_CONTROL_JE 0x00100000 /* Jumbo frame */
enum inter_frame_gap {
GMAC_CONTROL_IFG_88 = 0x00040000,
GMAC_CONTROL_IFG_80 = 0x00020000,
GMAC_CONTROL_IFG_40 = 0x000e0000,
};
#define GMAC_CONTROL_DCRS 0x00010000 /* Disable carrier sense */
#define GMAC_CONTROL_PS 0x00008000 /* Port Select 0:GMI 1:MII */
#define GMAC_CONTROL_FES 0x00004000 /* Speed 0:10 1:100 */
#define GMAC_CONTROL_LM 0x00001000 /* Loop-back mode */
#define GMAC_CONTROL_DM 0x00000800 /* Duplex Mode */
#define GMAC_CONTROL_IPC 0x00000400 /* Checksum Offload */
#define GMAC_CORE_INIT (GMAC_CONTROL_JD | GMAC_CONTROL_PS | \
GMAC_CONTROL_BE | GMAC_CONTROL_DCRS)
/* GMAC Frame Filter defines */
#define GMAC_FRAME_FILTER_PR 0x00000001 /* Promiscuous Mode */
#define GMAC_FRAME_FILTER_HMC 0x00000004 /* Hash Multicast */
#define GMAC_FRAME_FILTER_PM 0x00000010 /* Pass all multicast */
#define GMAC_FRAME_FILTER_PCF 0x00000080 /* Pass Control frames */
#define GMAC_FRAME_FILTER_HPF 0x00000400 /* Hash or perfect Filter */
#define GMAC_FRAME_FILTER_RA 0x80000000 /* Receive all mode */
/* GMAC FLOW CTRL defines */
#define GMAC_FLOW_CTRL_PT_MASK GENMASK(31, 16) /* Pause Time Mask */
#define GMAC_FLOW_CTRL_UP 0x00000008 /* Unicast pause frame enable */
#define GMAC_FLOW_CTRL_RFE 0x00000004 /* Rx Flow Control Enable */
#define GMAC_FLOW_CTRL_TFE 0x00000002 /* Tx Flow Control Enable */
/* DEBUG Register defines */
/* MTL TxStatus FIFO */
#define GMAC_DEBUG_TXSTSFSTS BIT(25) /* MTL TxStatus FIFO Full Status */
#define GMAC_DEBUG_TXFSTS BIT(24) /* MTL Tx FIFO Not Empty Status */
#define GMAC_DEBUG_TWCSTS BIT(22) /* MTL Tx FIFO Write Controller */
/* MTL Tx FIFO Read Controller Status */
#define GMAC_DEBUG_TRCSTS_MASK GENMASK(21, 20)
#define GMAC_DEBUG_TRCSTS_READ 1
#define GMAC_DEBUG_TRCSTS_TXW 2
#define GMAC_DEBUG_TRCSTS_WRITE 3
#define GMAC_DEBUG_TXPAUSED BIT(19) /* MAC Transmitter in PAUSE */
/* MAC Transmit Frame Controller Status */
#define GMAC_DEBUG_TFCSTS_MASK GENMASK(18, 17)
#define GMAC_DEBUG_TFCSTS_WAIT 1
#define GMAC_DEBUG_TFCSTS_GEN_PAUSE 2
#define GMAC_DEBUG_TFCSTS_XFER 3
/* MAC GMII or MII Transmit Protocol Engine Status */
#define GMAC_DEBUG_TPESTS BIT(16)
#define GMAC_DEBUG_RXFSTS_MASK GENMASK(9, 8) /* MTL Rx FIFO Fill-level */
#define GMAC_DEBUG_RXFSTS_EMPTY 0
#define GMAC_DEBUG_RXFSTS_BT 1
#define GMAC_DEBUG_RXFSTS_AT 2
#define GMAC_DEBUG_RXFSTS_FULL 3
#define GMAC_DEBUG_RRCSTS_MASK GENMASK(6, 5) /* MTL Rx FIFO Read Controller */
#define GMAC_DEBUG_RRCSTS_IDLE 0
#define GMAC_DEBUG_RRCSTS_RDATA 1
#define GMAC_DEBUG_RRCSTS_RSTAT 2
#define GMAC_DEBUG_RRCSTS_FLUSH 3
#define GMAC_DEBUG_RWCSTS BIT(4) /* MTL Rx FIFO Write Controller Active */
/* MAC Receive Frame Controller FIFO Status */
#define GMAC_DEBUG_RFCFCSTS_MASK GENMASK(2, 1)
/* MAC GMII or MII Receive Protocol Engine Status */
#define GMAC_DEBUG_RPESTS BIT(0)
/*--- DMA BLOCK defines ---*/
/* DMA Bus Mode register defines */
/* Programmable burst length (passed through platform)*/
#define DMA_BUS_MODE_PBL_MASK GENMASK(13, 8) /* Programmable Burst Len */
#define DMA_BUS_MODE_ATDS 0x00000080 /* Alternate Descriptor Size */
enum rx_tx_priority_ratio {
double_ratio = 0x00004000, /* 2:1 */
triple_ratio = 0x00008000, /* 3:1 */
quadruple_ratio = 0x0000c000, /* 4:1 */
};
#define DMA_BUS_MODE_FB 0x00010000 /* Fixed burst */
#define DMA_BUS_MODE_MB 0x04000000 /* Mixed burst */
#define DMA_BUS_MODE_RPBL_MASK GENMASK(22, 17) /* Rx-Programmable Burst Len */
#define DMA_BUS_MODE_USP 0x00800000
#define DMA_BUS_MODE_MAXPBL 0x01000000
#define DMA_BUS_MODE_AAL 0x02000000
/* DMA CRS Control and Status Register Mapping */
/* DMA operation mode defines (start/stop tx/rx are placed in common header)*/
/* Disable Drop TCP/IP csum error */
#define DMA_CONTROL_RSF 0x02000000 /* Receive Store and Forward */
#define DMA_CONTROL_DFF 0x01000000 /* Disaable flushing */
/* Threshold for Activating the FC */
enum rfa {
act_full_minus_1 = 0x00800000,
act_full_minus_2 = 0x00800200,
act_full_minus_3 = 0x00800400,
act_full_minus_4 = 0x00800600,
};
/* Threshold for Deactivating the FC */
enum rfd {
deac_full_minus_1 = 0x00400000,
deac_full_minus_2 = 0x00400800,
deac_full_minus_3 = 0x00401000,
deac_full_minus_4 = 0x00401800,
};
#define DMA_CONTROL_TSF 0x00200000 /* Transmit Store and Forward */
enum ttc_control {
DMA_CONTROL_TTC_64 = 0x00000000,
DMA_CONTROL_TTC_128 = 0x00004000,
DMA_CONTROL_TTC_192 = 0x00008000,
DMA_CONTROL_TTC_256 = 0x0000c000,
DMA_CONTROL_TTC_40 = 0x00010000,
DMA_CONTROL_TTC_32 = 0x00014000,
DMA_CONTROL_TTC_24 = 0x00018000,
DMA_CONTROL_TTC_16 = 0x0001c000,
};
#define DMA_CONTROL_TC_TX_MASK 0xfffe3fff
#define DMA_CONTROL_EFC 0x00000100
/* Receive flow control activation field
* RFA field in DMA control register, bits 23,10:9
*/
#define DMA_CONTROL_RFA_MASK 0x00800600
/* Receive flow control deactivation field
* RFD field in DMA control register, bits 22,12:11
*/
#define DMA_CONTROL_RFD_MASK 0x00401800
/* RFD and RFA fields are encoded as follows
*
* Bit Field
* 0,00 - Full minus 1KB (only valid when rxfifo >= 4KB and EFC enabled)
* 0,01 - Full minus 2KB (only valid when rxfifo >= 4KB and EFC enabled)
* 0,10 - Full minus 3KB (only valid when rxfifo >= 4KB and EFC enabled)
* 0,11 - Full minus 4KB (only valid when rxfifo > 4KB and EFC enabled)
* 1,00 - Full minus 5KB (only valid when rxfifo > 8KB and EFC enabled)
* 1,01 - Full minus 6KB (only valid when rxfifo > 8KB and EFC enabled)
* 1,10 - Full minus 7KB (only valid when rxfifo > 8KB and EFC enabled)
* 1,11 - Reserved
*
* RFD should always be > RFA for a given FIFO size. RFD == RFA may work,
* but packet throughput performance may not be as expected.
*
* Be sure that bit 3 in GMAC Register 6 is set for Unicast Pause frame
* detection (IEEE Specification Requirement, Annex 31B, 31B.1, Pause
* Description).
*
* Be sure that DZPA (bit 7 in Flow Control Register, GMAC Register 6),
* is set to 0. This allows pause frames with a quanta of 0 to be sent
* as an XOFF message to the link peer.
*/
#define RFA_FULL_MINUS_1K 0x00000000
#define RFD_FULL_MINUS_2K 0x00000800
enum rtc_control {
DMA_CONTROL_RTC_64 = 0x00000000,
DMA_CONTROL_RTC_32 = 0x00000008,
DMA_CONTROL_RTC_96 = 0x00000010,
DMA_CONTROL_RTC_128 = 0x00000018,
};
#define DMA_CONTROL_TC_RX_MASK 0xffffffe7
#define DMA_CONTROL_OSF 0x00000004 /* Operate on second frame */
/* MMC registers offset */
#define GMAC_EXTHASH_BASE 0x500
/* PTP and timestamping registers */
#define GMAC3_X_ATSNS GENMASK(29, 25)
#define GMAC_PTP_TCR_ATSFC BIT(24)
#define GMAC_PTP_TCR_ATSEN0 BIT(25)
#define GMAC3_X_TIMESTAMP_STATUS 0x28
#define GMAC_PTP_ATNR 0x30
#define GMAC_PTP_ATSR 0x34
extern const struct stmmac_dma_ops dwmac1000_dma_ops;
#endif /* __DWMAC1000_H__ */
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