| /* 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_WAKEUP_FILTER 0x00000028 /* Wake-up Frame Filter */ |
| |
| #define GMAC_INT_STATUS 0x00000038 /* interrupt status register */ |
| #define GMAC_INT_STATUS_PMT BIT(3) |
| #define GMAC_INT_STATUS_MMCIS BIT(4) |
| #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_TSTAMP BIT(9) |
| #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_DISABLE_PCS (GMAC_INT_DISABLE_RGMII | \ |
| GMAC_INT_DISABLE_PCSLINK | \ |
| GMAC_INT_DISABLE_PCSAN) |
| #define GMAC_INT_DEFAULT_MASK (GMAC_INT_DISABLE_TIMESTAMP | \ |
| GMAC_INT_DISABLE_PCS) |
| |
| /* 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 |
| */ |
| #define LPI_CTRL_STATUS 0x0030 |
| #define LPI_TIMER_CTRL 0x0034 |
| |
| /* LPI control and status defines */ |
| #define LPI_CTRL_STATUS_LPITXA 0x00080000 /* Enable LPI TX Automate */ |
| #define LPI_CTRL_STATUS_PLSEN 0x00040000 /* Enable PHY Link Status */ |
| #define LPI_CTRL_STATUS_PLS 0x00020000 /* PHY Link Status */ |
| #define LPI_CTRL_STATUS_LPIEN 0x00010000 /* LPI Enable */ |
| #define LPI_CTRL_STATUS_RLPIST 0x00000200 /* Receive LPI state */ |
| #define LPI_CTRL_STATUS_TLPIST 0x00000100 /* Transmit LPI state */ |
| #define LPI_CTRL_STATUS_RLPIEX 0x00000008 /* Receive LPI Exit */ |
| #define LPI_CTRL_STATUS_RLPIEN 0x00000004 /* Receive LPI Entry */ |
| #define LPI_CTRL_STATUS_TLPIEX 0x00000002 /* Transmit LPI Exit */ |
| #define LPI_CTRL_STATUS_TLPIEN 0x00000001 /* Transmit LPI Entry */ |
| |
| /* 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_RGSMIIIS_LNKMODE BIT(0) |
| #define GMAC_RGSMIIIS_SPEED GENMASK(2, 1) |
| #define GMAC_RGSMIIIS_SPEED_SHIFT 1 |
| #define GMAC_RGSMIIIS_LNKSTS BIT(3) |
| #define GMAC_RGSMIIIS_JABTO BIT(4) |
| #define GMAC_RGSMIIIS_FALSECARDET BIT(5) |
| #define GMAC_RGSMIIIS_SMIDRXS BIT(16) |
| /* LNKMOD */ |
| #define GMAC_RGSMIIIS_LNKMOD_MASK 0x1 |
| /* LNKSPEED */ |
| #define GMAC_RGSMIIIS_SPEED_125 0x2 |
| #define GMAC_RGSMIIIS_SPEED_25 0x1 |
| #define GMAC_RGSMIIIS_SPEED_2_5 0x0 |
| |
| /* GMAC Configuration defines */ |
| #define GMAC_CONTROL_2K 0x08000000 /* IEEE 802.3as 2K packets */ |
| #define GMAC_CONTROL_TC 0x01000000 /* Transmit Conf. in RGMII/SGMII */ |
| #define GMAC_CONTROL_WD 0x00800000 /* Disable Watchdog on receive */ |
| #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_DO 0x00002000 /* Disable Rx Own */ |
| #define GMAC_CONTROL_LM 0x00001000 /* Loop-back mode */ |
| #define GMAC_CONTROL_DM 0x00000800 /* Duplex Mode */ |
| #define GMAC_CONTROL_IPC 0x00000400 /* Checksum Offload */ |
| #define GMAC_CONTROL_DR 0x00000200 /* Disable Retry */ |
| #define GMAC_CONTROL_LUD 0x00000100 /* Link up/down */ |
| #define GMAC_CONTROL_ACS 0x00000080 /* Auto Pad/FCS Stripping */ |
| #define GMAC_CONTROL_DC 0x00000010 /* Deferral Check */ |
| #define GMAC_CONTROL_TE 0x00000008 /* Transmitter Enable */ |
| #define GMAC_CONTROL_RE 0x00000004 /* Receiver Enable */ |
| |
| #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_HUC 0x00000002 /* Hash Unicast */ |
| #define GMAC_FRAME_FILTER_HMC 0x00000004 /* Hash Multicast */ |
| #define GMAC_FRAME_FILTER_DAIF 0x00000008 /* DA Inverse Filtering */ |
| #define GMAC_FRAME_FILTER_PM 0x00000010 /* Pass all multicast */ |
| #define GMAC_FRAME_FILTER_DBF 0x00000020 /* Disable Broadcast frames */ |
| #define GMAC_FRAME_FILTER_PCF 0x00000080 /* Pass Control frames */ |
| #define GMAC_FRAME_FILTER_SAIF 0x00000100 /* Inverse Filtering */ |
| #define GMAC_FRAME_FILTER_SAF 0x00000200 /* Source Address Filter */ |
| #define GMAC_FRAME_FILTER_HPF 0x00000400 /* Hash or perfect Filter */ |
| #define GMAC_FRAME_FILTER_RA 0x80000000 /* Receive all mode */ |
| /* GMII ADDR defines */ |
| #define GMAC_MII_ADDR_WRITE 0x00000002 /* MII Write */ |
| #define GMAC_MII_ADDR_BUSY 0x00000001 /* MII Busy */ |
| /* GMAC FLOW CTRL defines */ |
| #define GMAC_FLOW_CTRL_PT_MASK 0xffff0000 /* Pause Time Mask */ |
| #define GMAC_FLOW_CTRL_PT_SHIFT 16 |
| #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 */ |
| #define GMAC_FLOW_CTRL_FCB_BPA 0x00000001 /* Flow Control Busy ... */ |
| |
| /* 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_SHIFT 20 |
| #define GMAC_DEBUG_TRCSTS_IDLE 0 |
| #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_SHIFT 17 |
| #define GMAC_DEBUG_TFCSTS_IDLE 0 |
| #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_SHIFT 8 |
| #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_SHIFT 5 |
| #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) |
| #define GMAC_DEBUG_RFCFCSTS_SHIFT 1 |
| /* MAC GMII or MII Receive Protocol Engine Status */ |
| #define GMAC_DEBUG_RPESTS BIT(0) |
| |
| /*--- DMA BLOCK defines ---*/ |
| /* DMA Bus Mode register defines */ |
| #define DMA_BUS_MODE_DA 0x00000002 /* Arbitration scheme */ |
| #define DMA_BUS_MODE_DSL_MASK 0x0000007c /* Descriptor Skip Length */ |
| #define DMA_BUS_MODE_DSL_SHIFT 2 /* (in DWORDS) */ |
| /* Programmable burst length (passed thorugh platform)*/ |
| #define DMA_BUS_MODE_PBL_MASK 0x00003f00 /* Programmable Burst Len */ |
| #define DMA_BUS_MODE_PBL_SHIFT 8 |
| #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 0x007e0000 /* Rx-Programmable Burst Len */ |
| #define DMA_BUS_MODE_RPBL_SHIFT 17 |
| #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 */ |
| #define DMA_HOST_TX_DESC 0x00001048 /* Current Host Tx descriptor */ |
| #define DMA_HOST_RX_DESC 0x0000104c /* Current Host Rx descriptor */ |
| /* DMA Bus Mode register defines */ |
| #define DMA_BUS_PR_RATIO_MASK 0x0000c000 /* Rx/Tx priority ratio */ |
| #define DMA_BUS_PR_RATIO_SHIFT 14 |
| #define DMA_BUS_FB 0x00010000 /* Fixed Burst */ |
| |
| /* DMA operation mode defines (start/stop tx/rx are placed in common header)*/ |
| /* Disable Drop TCP/IP csum error */ |
| #define DMA_CONTROL_DT 0x04000000 |
| #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 |
| #define DMA_CONTROL_FEF 0x00000080 |
| #define DMA_CONTROL_FUF 0x00000040 |
| |
| /* 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 RFA_FULL_MINUS_2K 0x00000200 |
| #define RFA_FULL_MINUS_3K 0x00000400 |
| #define RFA_FULL_MINUS_4K 0x00000600 |
| #define RFA_FULL_MINUS_5K 0x00800000 |
| #define RFA_FULL_MINUS_6K 0x00800200 |
| #define RFA_FULL_MINUS_7K 0x00800400 |
| |
| #define RFD_FULL_MINUS_1K 0x00000000 |
| #define RFD_FULL_MINUS_2K 0x00000800 |
| #define RFD_FULL_MINUS_3K 0x00001000 |
| #define RFD_FULL_MINUS_4K 0x00001800 |
| #define RFD_FULL_MINUS_5K 0x00400000 |
| #define RFD_FULL_MINUS_6K 0x00400800 |
| #define RFD_FULL_MINUS_7K 0x00401000 |
| |
| 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_MMC_CTRL 0x100 |
| #define GMAC_MMC_RX_INTR 0x104 |
| #define GMAC_MMC_TX_INTR 0x108 |
| #define GMAC_MMC_RX_CSUM_OFFLOAD 0x208 |
| #define GMAC_EXTHASH_BASE 0x500 |
| |
| extern const struct stmmac_dma_ops dwmac1000_dma_ops; |
| #endif /* __DWMAC1000_H__ */ |
