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linux/drivers/net/ethernet/renesas/ravb.h
Geert Uytterhoeven a6f51f2efa ravb: Add support for explicit internal clock delay configuration 
Some EtherAVB variants support internal clock delay configuration, which
can add larger delays than the delays that are typically supported by
the PHY (using an "rgmii-*id" PHY mode, and/or "[rt]xc-skew-ps"
properties).

Historically, the EtherAVB driver configured these delays based on the
"rgmii-*id" PHY mode.  This caused issues with PHY drivers that
implement PHY internal delays properly[1].  Hence a backwards-compatible
workaround was added by masking the PHY mode[2].

Add proper support for explicit configuration of the MAC internal clock
delays using the new "[rt]x-internal-delay-ps" properties.
Fall back to the old handling if none of these properties is present.

[1] Commit bcf3440c6d ("net: phy: micrel: add phy-mode support for
    the KSZ9031 PHY")
[2] Commit 9b23203c32 ("ravb: Mask PHY mode to avoid inserting
    delays twice").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:31 -07:00

1069 lines
23 KiB
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/* SPDX-License-Identifier: GPL-2.0 */
/* Renesas Ethernet AVB device driver
*
* Copyright (C) 2014-2015 Renesas Electronics Corporation
* Copyright (C) 2015 Renesas Solutions Corp.
* Copyright (C) 2015-2016 Cogent Embedded, Inc. <source@cogentembedded.com>
*
* Based on the SuperH Ethernet driver
*/
#ifndef __RAVB_H__
#define __RAVB_H__
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mdio-bitbang.h>
#include <linux/netdevice.h>
#include <linux/phy.h>
#include <linux/platform_device.h>
#include <linux/ptp_clock_kernel.h>
#define BE_TX_RING_SIZE 64 /* TX ring size for Best Effort */
#define BE_RX_RING_SIZE 1024 /* RX ring size for Best Effort */
#define NC_TX_RING_SIZE 64 /* TX ring size for Network Control */
#define NC_RX_RING_SIZE 64 /* RX ring size for Network Control */
#define BE_TX_RING_MIN 64
#define BE_RX_RING_MIN 64
#define BE_TX_RING_MAX 1024
#define BE_RX_RING_MAX 2048
#define PKT_BUF_SZ 1538
/* Driver's parameters */
#define RAVB_ALIGN 128
/* Hardware time stamp */
#define RAVB_TXTSTAMP_VALID 0x00000001 /* TX timestamp valid */
#define RAVB_TXTSTAMP_ENABLED 0x00000010 /* Enable TX timestamping */
#define RAVB_RXTSTAMP_VALID 0x00000001 /* RX timestamp valid */
#define RAVB_RXTSTAMP_TYPE 0x00000006 /* RX type mask */
#define RAVB_RXTSTAMP_TYPE_V2_L2_EVENT 0x00000002
#define RAVB_RXTSTAMP_TYPE_ALL 0x00000006
#define RAVB_RXTSTAMP_ENABLED 0x00000010 /* Enable RX timestamping */
enum ravb_reg {
/* AVB-DMAC registers */
CCC = 0x0000,
DBAT = 0x0004,
DLR = 0x0008,
CSR = 0x000C,
CDAR0 = 0x0010,
CDAR1 = 0x0014,
CDAR2 = 0x0018,
CDAR3 = 0x001C,
CDAR4 = 0x0020,
CDAR5 = 0x0024,
CDAR6 = 0x0028,
CDAR7 = 0x002C,
CDAR8 = 0x0030,
CDAR9 = 0x0034,
CDAR10 = 0x0038,
CDAR11 = 0x003C,
CDAR12 = 0x0040,
CDAR13 = 0x0044,
CDAR14 = 0x0048,
CDAR15 = 0x004C,
CDAR16 = 0x0050,
CDAR17 = 0x0054,
CDAR18 = 0x0058,
CDAR19 = 0x005C,
CDAR20 = 0x0060,
CDAR21 = 0x0064,
ESR = 0x0088,
APSR = 0x008C, /* R-Car Gen3 only */
RCR = 0x0090,
RQC0 = 0x0094,
RQC1 = 0x0098,
RQC2 = 0x009C,
RQC3 = 0x00A0,
RQC4 = 0x00A4,
RPC = 0x00B0,
UFCW = 0x00BC,
UFCS = 0x00C0,
UFCV0 = 0x00C4,
UFCV1 = 0x00C8,
UFCV2 = 0x00CC,
UFCV3 = 0x00D0,
UFCV4 = 0x00D4,
UFCD0 = 0x00E0,
UFCD1 = 0x00E4,
UFCD2 = 0x00E8,
UFCD3 = 0x00EC,
UFCD4 = 0x00F0,
SFO = 0x00FC,
SFP0 = 0x0100,
SFP1 = 0x0104,
SFP2 = 0x0108,
SFP3 = 0x010C,
SFP4 = 0x0110,
SFP5 = 0x0114,
SFP6 = 0x0118,
SFP7 = 0x011C,
SFP8 = 0x0120,
SFP9 = 0x0124,
SFP10 = 0x0128,
SFP11 = 0x012C,
SFP12 = 0x0130,
SFP13 = 0x0134,
SFP14 = 0x0138,
SFP15 = 0x013C,
SFP16 = 0x0140,
SFP17 = 0x0144,
SFP18 = 0x0148,
SFP19 = 0x014C,
SFP20 = 0x0150,
SFP21 = 0x0154,
SFP22 = 0x0158,
SFP23 = 0x015C,
SFP24 = 0x0160,
SFP25 = 0x0164,
SFP26 = 0x0168,
SFP27 = 0x016C,
SFP28 = 0x0170,
SFP29 = 0x0174,
SFP30 = 0x0178,
SFP31 = 0x017C,
SFM0 = 0x01C0,
SFM1 = 0x01C4,
TGC = 0x0300,
TCCR = 0x0304,
TSR = 0x0308,
TFA0 = 0x0310,
TFA1 = 0x0314,
TFA2 = 0x0318,
CIVR0 = 0x0320,
CIVR1 = 0x0324,
CDVR0 = 0x0328,
CDVR1 = 0x032C,
CUL0 = 0x0330,
CUL1 = 0x0334,
CLL0 = 0x0338,
CLL1 = 0x033C,
DIC = 0x0350,
DIS = 0x0354,
EIC = 0x0358,
EIS = 0x035C,
RIC0 = 0x0360,
RIS0 = 0x0364,
RIC1 = 0x0368,
RIS1 = 0x036C,
RIC2 = 0x0370,
RIS2 = 0x0374,
TIC = 0x0378,
TIS = 0x037C,
ISS = 0x0380,
CIE = 0x0384, /* R-Car Gen3 only */
GCCR = 0x0390,
GMTT = 0x0394,
GPTC = 0x0398,
GTI = 0x039C,
GTO0 = 0x03A0,
GTO1 = 0x03A4,
GTO2 = 0x03A8,
GIC = 0x03AC,
GIS = 0x03B0,
GCPT = 0x03B4, /* Undocumented? */
GCT0 = 0x03B8,
GCT1 = 0x03BC,
GCT2 = 0x03C0,
GIE = 0x03CC, /* R-Car Gen3 only */
GID = 0x03D0, /* R-Car Gen3 only */
DIL = 0x0440, /* R-Car Gen3 only */
RIE0 = 0x0460, /* R-Car Gen3 only */
RID0 = 0x0464, /* R-Car Gen3 only */
RIE2 = 0x0470, /* R-Car Gen3 only */
RID2 = 0x0474, /* R-Car Gen3 only */
TIE = 0x0478, /* R-Car Gen3 only */
TID = 0x047c, /* R-Car Gen3 only */
/* E-MAC registers */
ECMR = 0x0500,
RFLR = 0x0508,
ECSR = 0x0510,
ECSIPR = 0x0518,
PIR = 0x0520,
PSR = 0x0528,
PIPR = 0x052c,
MPR = 0x0558,
PFTCR = 0x055c,
PFRCR = 0x0560,
GECMR = 0x05b0,
MAHR = 0x05c0,
MALR = 0x05c8,
TROCR = 0x0700, /* R-Car Gen3 only */
CEFCR = 0x0740,
FRECR = 0x0748,
TSFRCR = 0x0750,
TLFRCR = 0x0758,
RFCR = 0x0760,
MAFCR = 0x0778,
};
/* Register bits of the Ethernet AVB */
/* CCC */
enum CCC_BIT {
CCC_OPC = 0x00000003,
CCC_OPC_RESET = 0x00000000,
CCC_OPC_CONFIG = 0x00000001,
CCC_OPC_OPERATION = 0x00000002,
CCC_GAC = 0x00000080,
CCC_DTSR = 0x00000100,
CCC_CSEL = 0x00030000,
CCC_CSEL_HPB = 0x00010000,
CCC_CSEL_ETH_TX = 0x00020000,
CCC_CSEL_GMII_REF = 0x00030000,
CCC_LBME = 0x01000000,
};
/* CSR */
enum CSR_BIT {
CSR_OPS = 0x0000000F,
CSR_OPS_RESET = 0x00000001,
CSR_OPS_CONFIG = 0x00000002,
CSR_OPS_OPERATION = 0x00000004,
CSR_OPS_STANDBY = 0x00000008, /* Undocumented? */
CSR_DTS = 0x00000100,
CSR_TPO0 = 0x00010000,
CSR_TPO1 = 0x00020000,
CSR_TPO2 = 0x00040000,
CSR_TPO3 = 0x00080000,
CSR_RPO = 0x00100000,
};
/* ESR */
enum ESR_BIT {
ESR_EQN = 0x0000001F,
ESR_ET = 0x00000F00,
ESR_EIL = 0x00001000,
};
/* APSR */
enum APSR_BIT {
APSR_MEMS = 0x00000002,
APSR_CMSW = 0x00000010,
APSR_DM = 0x00006000, /* Undocumented? */
APSR_DM_RDM = 0x00002000,
APSR_DM_TDM = 0x00004000,
};
/* RCR */
enum RCR_BIT {
RCR_EFFS = 0x00000001,
RCR_ENCF = 0x00000002,
RCR_ESF = 0x0000000C,
RCR_ETS0 = 0x00000010,
RCR_ETS2 = 0x00000020,
RCR_RFCL = 0x1FFF0000,
};
/* RQC0/1/2/3/4 */
enum RQC_BIT {
RQC_RSM0 = 0x00000003,
RQC_UFCC0 = 0x00000030,
RQC_RSM1 = 0x00000300,
RQC_UFCC1 = 0x00003000,
RQC_RSM2 = 0x00030000,
RQC_UFCC2 = 0x00300000,
RQC_RSM3 = 0x03000000,
RQC_UFCC3 = 0x30000000,
};
/* RPC */
enum RPC_BIT {
RPC_PCNT = 0x00000700,
RPC_DCNT = 0x00FF0000,
};
/* UFCW */
enum UFCW_BIT {
UFCW_WL0 = 0x0000003F,
UFCW_WL1 = 0x00003F00,
UFCW_WL2 = 0x003F0000,
UFCW_WL3 = 0x3F000000,
};
/* UFCS */
enum UFCS_BIT {
UFCS_SL0 = 0x0000003F,
UFCS_SL1 = 0x00003F00,
UFCS_SL2 = 0x003F0000,
UFCS_SL3 = 0x3F000000,
};
/* UFCV0/1/2/3/4 */
enum UFCV_BIT {
UFCV_CV0 = 0x0000003F,
UFCV_CV1 = 0x00003F00,
UFCV_CV2 = 0x003F0000,
UFCV_CV3 = 0x3F000000,
};
/* UFCD0/1/2/3/4 */
enum UFCD_BIT {
UFCD_DV0 = 0x0000003F,
UFCD_DV1 = 0x00003F00,
UFCD_DV2 = 0x003F0000,
UFCD_DV3 = 0x3F000000,
};
/* SFO */
enum SFO_BIT {
SFO_FBP = 0x0000003F,
};
/* RTC */
enum RTC_BIT {
RTC_MFL0 = 0x00000FFF,
RTC_MFL1 = 0x0FFF0000,
};
/* TGC */
enum TGC_BIT {
TGC_TSM0 = 0x00000001,
TGC_TSM1 = 0x00000002,
TGC_TSM2 = 0x00000004,
TGC_TSM3 = 0x00000008,
TGC_TQP = 0x00000030,
TGC_TQP_NONAVB = 0x00000000,
TGC_TQP_AVBMODE1 = 0x00000010,
TGC_TQP_AVBMODE2 = 0x00000030,
TGC_TBD0 = 0x00000300,
TGC_TBD1 = 0x00003000,
TGC_TBD2 = 0x00030000,
TGC_TBD3 = 0x00300000,
};
/* TCCR */
enum TCCR_BIT {
TCCR_TSRQ0 = 0x00000001,
TCCR_TSRQ1 = 0x00000002,
TCCR_TSRQ2 = 0x00000004,
TCCR_TSRQ3 = 0x00000008,
TCCR_TFEN = 0x00000100,
TCCR_TFR = 0x00000200,
};
/* TSR */
enum TSR_BIT {
TSR_CCS0 = 0x00000003,
TSR_CCS1 = 0x0000000C,
TSR_TFFL = 0x00000700,
};
/* TFA2 */
enum TFA2_BIT {
TFA2_TSV = 0x0000FFFF,
TFA2_TST = 0x03FF0000,
};
/* DIC */
enum DIC_BIT {
DIC_DPE1 = 0x00000002,
DIC_DPE2 = 0x00000004,
DIC_DPE3 = 0x00000008,
DIC_DPE4 = 0x00000010,
DIC_DPE5 = 0x00000020,
DIC_DPE6 = 0x00000040,
DIC_DPE7 = 0x00000080,
DIC_DPE8 = 0x00000100,
DIC_DPE9 = 0x00000200,
DIC_DPE10 = 0x00000400,
DIC_DPE11 = 0x00000800,
DIC_DPE12 = 0x00001000,
DIC_DPE13 = 0x00002000,
DIC_DPE14 = 0x00004000,
DIC_DPE15 = 0x00008000,
};
/* DIS */
enum DIS_BIT {
DIS_DPF1 = 0x00000002,
DIS_DPF2 = 0x00000004,
DIS_DPF3 = 0x00000008,
DIS_DPF4 = 0x00000010,
DIS_DPF5 = 0x00000020,
DIS_DPF6 = 0x00000040,
DIS_DPF7 = 0x00000080,
DIS_DPF8 = 0x00000100,
DIS_DPF9 = 0x00000200,
DIS_DPF10 = 0x00000400,
DIS_DPF11 = 0x00000800,
DIS_DPF12 = 0x00001000,
DIS_DPF13 = 0x00002000,
DIS_DPF14 = 0x00004000,
DIS_DPF15 = 0x00008000,
};
/* EIC */
enum EIC_BIT {
EIC_MREE = 0x00000001,
EIC_MTEE = 0x00000002,
EIC_QEE = 0x00000004,
EIC_SEE = 0x00000008,
EIC_CLLE0 = 0x00000010,
EIC_CLLE1 = 0x00000020,
EIC_CULE0 = 0x00000040,
EIC_CULE1 = 0x00000080,
EIC_TFFE = 0x00000100,
};
/* EIS */
enum EIS_BIT {
EIS_MREF = 0x00000001,
EIS_MTEF = 0x00000002,
EIS_QEF = 0x00000004,
EIS_SEF = 0x00000008,
EIS_CLLF0 = 0x00000010,
EIS_CLLF1 = 0x00000020,
EIS_CULF0 = 0x00000040,
EIS_CULF1 = 0x00000080,
EIS_TFFF = 0x00000100,
EIS_QFS = 0x00010000,
EIS_RESERVED = (GENMASK(31, 17) | GENMASK(15, 11)),
};
/* RIC0 */
enum RIC0_BIT {
RIC0_FRE0 = 0x00000001,
RIC0_FRE1 = 0x00000002,
RIC0_FRE2 = 0x00000004,
RIC0_FRE3 = 0x00000008,
RIC0_FRE4 = 0x00000010,
RIC0_FRE5 = 0x00000020,
RIC0_FRE6 = 0x00000040,
RIC0_FRE7 = 0x00000080,
RIC0_FRE8 = 0x00000100,
RIC0_FRE9 = 0x00000200,
RIC0_FRE10 = 0x00000400,
RIC0_FRE11 = 0x00000800,
RIC0_FRE12 = 0x00001000,
RIC0_FRE13 = 0x00002000,
RIC0_FRE14 = 0x00004000,
RIC0_FRE15 = 0x00008000,
RIC0_FRE16 = 0x00010000,
RIC0_FRE17 = 0x00020000,
};
/* RIC0 */
enum RIS0_BIT {
RIS0_FRF0 = 0x00000001,
RIS0_FRF1 = 0x00000002,
RIS0_FRF2 = 0x00000004,
RIS0_FRF3 = 0x00000008,
RIS0_FRF4 = 0x00000010,
RIS0_FRF5 = 0x00000020,
RIS0_FRF6 = 0x00000040,
RIS0_FRF7 = 0x00000080,
RIS0_FRF8 = 0x00000100,
RIS0_FRF9 = 0x00000200,
RIS0_FRF10 = 0x00000400,
RIS0_FRF11 = 0x00000800,
RIS0_FRF12 = 0x00001000,
RIS0_FRF13 = 0x00002000,
RIS0_FRF14 = 0x00004000,
RIS0_FRF15 = 0x00008000,
RIS0_FRF16 = 0x00010000,
RIS0_FRF17 = 0x00020000,
RIS0_RESERVED = GENMASK(31, 18),
};
/* RIC1 */
enum RIC1_BIT {
RIC1_RFWE = 0x80000000,
};
/* RIS1 */
enum RIS1_BIT {
RIS1_RFWF = 0x80000000,
};
/* RIC2 */
enum RIC2_BIT {
RIC2_QFE0 = 0x00000001,
RIC2_QFE1 = 0x00000002,
RIC2_QFE2 = 0x00000004,
RIC2_QFE3 = 0x00000008,
RIC2_QFE4 = 0x00000010,
RIC2_QFE5 = 0x00000020,
RIC2_QFE6 = 0x00000040,
RIC2_QFE7 = 0x00000080,
RIC2_QFE8 = 0x00000100,
RIC2_QFE9 = 0x00000200,
RIC2_QFE10 = 0x00000400,
RIC2_QFE11 = 0x00000800,
RIC2_QFE12 = 0x00001000,
RIC2_QFE13 = 0x00002000,
RIC2_QFE14 = 0x00004000,
RIC2_QFE15 = 0x00008000,
RIC2_QFE16 = 0x00010000,
RIC2_QFE17 = 0x00020000,
RIC2_RFFE = 0x80000000,
};
/* RIS2 */
enum RIS2_BIT {
RIS2_QFF0 = 0x00000001,
RIS2_QFF1 = 0x00000002,
RIS2_QFF2 = 0x00000004,
RIS2_QFF3 = 0x00000008,
RIS2_QFF4 = 0x00000010,
RIS2_QFF5 = 0x00000020,
RIS2_QFF6 = 0x00000040,
RIS2_QFF7 = 0x00000080,
RIS2_QFF8 = 0x00000100,
RIS2_QFF9 = 0x00000200,
RIS2_QFF10 = 0x00000400,
RIS2_QFF11 = 0x00000800,
RIS2_QFF12 = 0x00001000,
RIS2_QFF13 = 0x00002000,
RIS2_QFF14 = 0x00004000,
RIS2_QFF15 = 0x00008000,
RIS2_QFF16 = 0x00010000,
RIS2_QFF17 = 0x00020000,
RIS2_RFFF = 0x80000000,
RIS2_RESERVED = GENMASK(30, 18),
};
/* TIC */
enum TIC_BIT {
TIC_FTE0 = 0x00000001, /* Undocumented? */
TIC_FTE1 = 0x00000002, /* Undocumented? */
TIC_TFUE = 0x00000100,
TIC_TFWE = 0x00000200,
};
/* TIS */
enum TIS_BIT {
TIS_FTF0 = 0x00000001, /* Undocumented? */
TIS_FTF1 = 0x00000002, /* Undocumented? */
TIS_TFUF = 0x00000100,
TIS_TFWF = 0x00000200,
TIS_RESERVED = (GENMASK(31, 20) | GENMASK(15, 12) | GENMASK(7, 4))
};
/* ISS */
enum ISS_BIT {
ISS_FRS = 0x00000001, /* Undocumented? */
ISS_FTS = 0x00000004, /* Undocumented? */
ISS_ES = 0x00000040,
ISS_MS = 0x00000080,
ISS_TFUS = 0x00000100,
ISS_TFWS = 0x00000200,
ISS_RFWS = 0x00001000,
ISS_CGIS = 0x00002000,
ISS_DPS1 = 0x00020000,
ISS_DPS2 = 0x00040000,
ISS_DPS3 = 0x00080000,
ISS_DPS4 = 0x00100000,
ISS_DPS5 = 0x00200000,
ISS_DPS6 = 0x00400000,
ISS_DPS7 = 0x00800000,
ISS_DPS8 = 0x01000000,
ISS_DPS9 = 0x02000000,
ISS_DPS10 = 0x04000000,
ISS_DPS11 = 0x08000000,
ISS_DPS12 = 0x10000000,
ISS_DPS13 = 0x20000000,
ISS_DPS14 = 0x40000000,
ISS_DPS15 = 0x80000000,
};
/* CIE (R-Car Gen3 only) */
enum CIE_BIT {
CIE_CRIE = 0x00000001,
CIE_CTIE = 0x00000100,
CIE_RQFM = 0x00010000,
CIE_CL0M = 0x00020000,
CIE_RFWL = 0x00040000,
CIE_RFFL = 0x00080000,
};
/* GCCR */
enum GCCR_BIT {
GCCR_TCR = 0x00000003,
GCCR_TCR_NOREQ = 0x00000000, /* No request */
GCCR_TCR_RESET = 0x00000001, /* gPTP/AVTP presentation timer reset */
GCCR_TCR_CAPTURE = 0x00000003, /* Capture value set in GCCR.TCSS */
GCCR_LTO = 0x00000004,
GCCR_LTI = 0x00000008,
GCCR_LPTC = 0x00000010,
GCCR_LMTT = 0x00000020,
GCCR_TCSS = 0x00000300,
GCCR_TCSS_GPTP = 0x00000000, /* gPTP timer value */
GCCR_TCSS_ADJGPTP = 0x00000100, /* Adjusted gPTP timer value */
GCCR_TCSS_AVTP = 0x00000200, /* AVTP presentation time value */
};
/* GTI */
enum GTI_BIT {
GTI_TIV = 0x0FFFFFFF,
};
#define GTI_TIV_MAX GTI_TIV
#define GTI_TIV_MIN 0x20
/* GIC */
enum GIC_BIT {
GIC_PTCE = 0x00000001, /* Undocumented? */
GIC_PTME = 0x00000004,
};
/* GIS */
enum GIS_BIT {
GIS_PTCF = 0x00000001, /* Undocumented? */
GIS_PTMF = 0x00000004,
GIS_RESERVED = GENMASK(15, 10),
};
/* GIE (R-Car Gen3 only) */
enum GIE_BIT {
GIE_PTCS = 0x00000001,
GIE_PTOS = 0x00000002,
GIE_PTMS0 = 0x00000004,
GIE_PTMS1 = 0x00000008,
GIE_PTMS2 = 0x00000010,
GIE_PTMS3 = 0x00000020,
GIE_PTMS4 = 0x00000040,
GIE_PTMS5 = 0x00000080,
GIE_PTMS6 = 0x00000100,
GIE_PTMS7 = 0x00000200,
GIE_ATCS0 = 0x00010000,
GIE_ATCS1 = 0x00020000,
GIE_ATCS2 = 0x00040000,
GIE_ATCS3 = 0x00080000,
GIE_ATCS4 = 0x00100000,
GIE_ATCS5 = 0x00200000,
GIE_ATCS6 = 0x00400000,
GIE_ATCS7 = 0x00800000,
GIE_ATCS8 = 0x01000000,
GIE_ATCS9 = 0x02000000,
GIE_ATCS10 = 0x04000000,
GIE_ATCS11 = 0x08000000,
GIE_ATCS12 = 0x10000000,
GIE_ATCS13 = 0x20000000,
GIE_ATCS14 = 0x40000000,
GIE_ATCS15 = 0x80000000,
};
/* GID (R-Car Gen3 only) */
enum GID_BIT {
GID_PTCD = 0x00000001,
GID_PTOD = 0x00000002,
GID_PTMD0 = 0x00000004,
GID_PTMD1 = 0x00000008,
GID_PTMD2 = 0x00000010,
GID_PTMD3 = 0x00000020,
GID_PTMD4 = 0x00000040,
GID_PTMD5 = 0x00000080,
GID_PTMD6 = 0x00000100,
GID_PTMD7 = 0x00000200,
GID_ATCD0 = 0x00010000,
GID_ATCD1 = 0x00020000,
GID_ATCD2 = 0x00040000,
GID_ATCD3 = 0x00080000,
GID_ATCD4 = 0x00100000,
GID_ATCD5 = 0x00200000,
GID_ATCD6 = 0x00400000,
GID_ATCD7 = 0x00800000,
GID_ATCD8 = 0x01000000,
GID_ATCD9 = 0x02000000,
GID_ATCD10 = 0x04000000,
GID_ATCD11 = 0x08000000,
GID_ATCD12 = 0x10000000,
GID_ATCD13 = 0x20000000,
GID_ATCD14 = 0x40000000,
GID_ATCD15 = 0x80000000,
};
/* RIE0 (R-Car Gen3 only) */
enum RIE0_BIT {
RIE0_FRS0 = 0x00000001,
RIE0_FRS1 = 0x00000002,
RIE0_FRS2 = 0x00000004,
RIE0_FRS3 = 0x00000008,
RIE0_FRS4 = 0x00000010,
RIE0_FRS5 = 0x00000020,
RIE0_FRS6 = 0x00000040,
RIE0_FRS7 = 0x00000080,
RIE0_FRS8 = 0x00000100,
RIE0_FRS9 = 0x00000200,
RIE0_FRS10 = 0x00000400,
RIE0_FRS11 = 0x00000800,
RIE0_FRS12 = 0x00001000,
RIE0_FRS13 = 0x00002000,
RIE0_FRS14 = 0x00004000,
RIE0_FRS15 = 0x00008000,
RIE0_FRS16 = 0x00010000,
RIE0_FRS17 = 0x00020000,
};
/* RID0 (R-Car Gen3 only) */
enum RID0_BIT {
RID0_FRD0 = 0x00000001,
RID0_FRD1 = 0x00000002,
RID0_FRD2 = 0x00000004,
RID0_FRD3 = 0x00000008,
RID0_FRD4 = 0x00000010,
RID0_FRD5 = 0x00000020,
RID0_FRD6 = 0x00000040,
RID0_FRD7 = 0x00000080,
RID0_FRD8 = 0x00000100,
RID0_FRD9 = 0x00000200,
RID0_FRD10 = 0x00000400,
RID0_FRD11 = 0x00000800,
RID0_FRD12 = 0x00001000,
RID0_FRD13 = 0x00002000,
RID0_FRD14 = 0x00004000,
RID0_FRD15 = 0x00008000,
RID0_FRD16 = 0x00010000,
RID0_FRD17 = 0x00020000,
};
/* RIE2 (R-Car Gen3 only) */
enum RIE2_BIT {
RIE2_QFS0 = 0x00000001,
RIE2_QFS1 = 0x00000002,
RIE2_QFS2 = 0x00000004,
RIE2_QFS3 = 0x00000008,
RIE2_QFS4 = 0x00000010,
RIE2_QFS5 = 0x00000020,
RIE2_QFS6 = 0x00000040,
RIE2_QFS7 = 0x00000080,
RIE2_QFS8 = 0x00000100,
RIE2_QFS9 = 0x00000200,
RIE2_QFS10 = 0x00000400,
RIE2_QFS11 = 0x00000800,
RIE2_QFS12 = 0x00001000,
RIE2_QFS13 = 0x00002000,
RIE2_QFS14 = 0x00004000,
RIE2_QFS15 = 0x00008000,
RIE2_QFS16 = 0x00010000,
RIE2_QFS17 = 0x00020000,
RIE2_RFFS = 0x80000000,
};
/* RID2 (R-Car Gen3 only) */
enum RID2_BIT {
RID2_QFD0 = 0x00000001,
RID2_QFD1 = 0x00000002,
RID2_QFD2 = 0x00000004,
RID2_QFD3 = 0x00000008,
RID2_QFD4 = 0x00000010,
RID2_QFD5 = 0x00000020,
RID2_QFD6 = 0x00000040,
RID2_QFD7 = 0x00000080,
RID2_QFD8 = 0x00000100,
RID2_QFD9 = 0x00000200,
RID2_QFD10 = 0x00000400,
RID2_QFD11 = 0x00000800,
RID2_QFD12 = 0x00001000,
RID2_QFD13 = 0x00002000,
RID2_QFD14 = 0x00004000,
RID2_QFD15 = 0x00008000,
RID2_QFD16 = 0x00010000,
RID2_QFD17 = 0x00020000,
RID2_RFFD = 0x80000000,
};
/* TIE (R-Car Gen3 only) */
enum TIE_BIT {
TIE_FTS0 = 0x00000001,
TIE_FTS1 = 0x00000002,
TIE_FTS2 = 0x00000004,
TIE_FTS3 = 0x00000008,
TIE_TFUS = 0x00000100,
TIE_TFWS = 0x00000200,
TIE_MFUS = 0x00000400,
TIE_MFWS = 0x00000800,
TIE_TDPS0 = 0x00010000,
TIE_TDPS1 = 0x00020000,
TIE_TDPS2 = 0x00040000,
TIE_TDPS3 = 0x00080000,
};
/* TID (R-Car Gen3 only) */
enum TID_BIT {
TID_FTD0 = 0x00000001,
TID_FTD1 = 0x00000002,
TID_FTD2 = 0x00000004,
TID_FTD3 = 0x00000008,
TID_TFUD = 0x00000100,
TID_TFWD = 0x00000200,
TID_MFUD = 0x00000400,
TID_MFWD = 0x00000800,
TID_TDPD0 = 0x00010000,
TID_TDPD1 = 0x00020000,
TID_TDPD2 = 0x00040000,
TID_TDPD3 = 0x00080000,
};
/* ECMR */
enum ECMR_BIT {
ECMR_PRM = 0x00000001,
ECMR_DM = 0x00000002,
ECMR_TE = 0x00000020,
ECMR_RE = 0x00000040,
ECMR_MPDE = 0x00000200,
ECMR_TXF = 0x00010000, /* Undocumented? */
ECMR_RXF = 0x00020000,
ECMR_PFR = 0x00040000,
ECMR_ZPF = 0x00080000, /* Undocumented? */
ECMR_RZPF = 0x00100000,
ECMR_DPAD = 0x00200000,
ECMR_RCSC = 0x00800000,
ECMR_TRCCM = 0x04000000,
};
/* ECSR */
enum ECSR_BIT {
ECSR_ICD = 0x00000001,
ECSR_MPD = 0x00000002,
ECSR_LCHNG = 0x00000004,
ECSR_PHYI = 0x00000008,
};
/* ECSIPR */
enum ECSIPR_BIT {
ECSIPR_ICDIP = 0x00000001,
ECSIPR_MPDIP = 0x00000002,
ECSIPR_LCHNGIP = 0x00000004, /* Undocumented? */
};
/* PIR */
enum PIR_BIT {
PIR_MDC = 0x00000001,
PIR_MMD = 0x00000002,
PIR_MDO = 0x00000004,
PIR_MDI = 0x00000008,
};
/* PSR */
enum PSR_BIT {
PSR_LMON = 0x00000001,
};
/* PIPR */
enum PIPR_BIT {
PIPR_PHYIP = 0x00000001,
};
/* MPR */
enum MPR_BIT {
MPR_MP = 0x0000ffff,
};
/* GECMR */
enum GECMR_BIT {
GECMR_SPEED = 0x00000001,
GECMR_SPEED_100 = 0x00000000,
GECMR_SPEED_1000 = 0x00000001,
};
/* The Ethernet AVB descriptor definitions. */
struct ravb_desc {
__le16 ds; /* Descriptor size */
u8 cc; /* Content control MSBs (reserved) */
u8 die_dt; /* Descriptor interrupt enable and type */
__le32 dptr; /* Descriptor pointer */
};
#define DPTR_ALIGN 4 /* Required descriptor pointer alignment */
enum DIE_DT {
/* Frame data */
DT_FMID = 0x40,
DT_FSTART = 0x50,
DT_FEND = 0x60,
DT_FSINGLE = 0x70,
/* Chain control */
DT_LINK = 0x80,
DT_LINKFIX = 0x90,
DT_EOS = 0xa0,
/* HW/SW arbitration */
DT_FEMPTY = 0xc0,
DT_FEMPTY_IS = 0xd0,
DT_FEMPTY_IC = 0xe0,
DT_FEMPTY_ND = 0xf0,
DT_LEMPTY = 0x20,
DT_EEMPTY = 0x30,
};
struct ravb_rx_desc {
__le16 ds_cc; /* Descriptor size and content control LSBs */
u8 msc; /* MAC status code */
u8 die_dt; /* Descriptor interrupt enable and type */
__le32 dptr; /* Descpriptor pointer */
};
struct ravb_ex_rx_desc {
__le16 ds_cc; /* Descriptor size and content control lower bits */
u8 msc; /* MAC status code */
u8 die_dt; /* Descriptor interrupt enable and type */
__le32 dptr; /* Descpriptor pointer */
__le32 ts_n; /* Timestampe nsec */
__le32 ts_sl; /* Timestamp low */
__le16 ts_sh; /* Timestamp high */
__le16 res; /* Reserved bits */
};
enum RX_DS_CC_BIT {
RX_DS = 0x0fff, /* Data size */
RX_TR = 0x1000, /* Truncation indication */
RX_EI = 0x2000, /* Error indication */
RX_PS = 0xc000, /* Padding selection */
};
/* E-MAC status code */
enum MSC_BIT {
MSC_CRC = 0x01, /* Frame CRC error */
MSC_RFE = 0x02, /* Frame reception error (flagged by PHY) */
MSC_RTSF = 0x04, /* Frame length error (frame too short) */
MSC_RTLF = 0x08, /* Frame length error (frame too long) */
MSC_FRE = 0x10, /* Fraction error (not a multiple of 8 bits) */
MSC_CRL = 0x20, /* Carrier lost */
MSC_CEEF = 0x40, /* Carrier extension error */
MSC_MC = 0x80, /* Multicast frame reception */
};
struct ravb_tx_desc {
__le16 ds_tagl; /* Descriptor size and frame tag LSBs */
u8 tagh_tsr; /* Frame tag MSBs and timestamp storage request bit */
u8 die_dt; /* Descriptor interrupt enable and type */
__le32 dptr; /* Descpriptor pointer */
};
enum TX_DS_TAGL_BIT {
TX_DS = 0x0fff, /* Data size */
TX_TAGL = 0xf000, /* Frame tag LSBs */
};
enum TX_TAGH_TSR_BIT {
TX_TAGH = 0x3f, /* Frame tag MSBs */
TX_TSR = 0x40, /* Timestamp storage request */
};
enum RAVB_QUEUE {
RAVB_BE = 0, /* Best Effort Queue */
RAVB_NC, /* Network Control Queue */
};
#define DBAT_ENTRY_NUM 22
#define RX_QUEUE_OFFSET 4
#define NUM_RX_QUEUE 2
#define NUM_TX_QUEUE 2
#define RX_BUF_SZ (2048 - ETH_FCS_LEN + sizeof(__sum16))
/* TX descriptors per packet */
#define NUM_TX_DESC_GEN2 2
#define NUM_TX_DESC_GEN3 1
struct ravb_tstamp_skb {
struct list_head list;
struct sk_buff *skb;
u16 tag;
};
struct ravb_ptp_perout {
u32 target;
u32 period;
};
#define N_EXT_TS 1
#define N_PER_OUT 1
struct ravb_ptp {
struct ptp_clock *clock;
struct ptp_clock_info info;
u32 default_addend;
u32 current_addend;
int extts[N_EXT_TS];
struct ravb_ptp_perout perout[N_PER_OUT];
};
enum ravb_chip_id {
RCAR_GEN2,
RCAR_GEN3,
};
struct ravb_private {
struct net_device *ndev;
struct platform_device *pdev;
void __iomem *addr;
struct clk *clk;
struct mdiobb_ctrl mdiobb;
u32 num_rx_ring[NUM_RX_QUEUE];
u32 num_tx_ring[NUM_TX_QUEUE];
u32 desc_bat_size;
dma_addr_t desc_bat_dma;
struct ravb_desc *desc_bat;
dma_addr_t rx_desc_dma[NUM_RX_QUEUE];
dma_addr_t tx_desc_dma[NUM_TX_QUEUE];
struct ravb_ex_rx_desc *rx_ring[NUM_RX_QUEUE];
struct ravb_tx_desc *tx_ring[NUM_TX_QUEUE];
void *tx_align[NUM_TX_QUEUE];
struct sk_buff **rx_skb[NUM_RX_QUEUE];
struct sk_buff **tx_skb[NUM_TX_QUEUE];
u32 rx_over_errors;
u32 rx_fifo_errors;
struct net_device_stats stats[NUM_RX_QUEUE];
u32 tstamp_tx_ctrl;
u32 tstamp_rx_ctrl;
struct list_head ts_skb_list;
u32 ts_skb_tag;
struct ravb_ptp ptp;
spinlock_t lock; /* Register access lock */
u32 cur_rx[NUM_RX_QUEUE]; /* Consumer ring indices */
u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */
u32 cur_tx[NUM_TX_QUEUE];
u32 dirty_tx[NUM_TX_QUEUE];
struct napi_struct napi[NUM_RX_QUEUE];
struct work_struct work;
/* MII transceiver section. */
struct mii_bus *mii_bus; /* MDIO bus control */
int link;
phy_interface_t phy_interface;
int msg_enable;
int speed;
int emac_irq;
enum ravb_chip_id chip_id;
int rx_irqs[NUM_RX_QUEUE];
int tx_irqs[NUM_TX_QUEUE];
unsigned no_avb_link:1;
unsigned avb_link_active_low:1;
unsigned wol_enabled:1;
unsigned rxcidm:1; /* RX Clock Internal Delay Mode */
unsigned txcidm:1; /* TX Clock Internal Delay Mode */
unsigned rgmii_override:1; /* Deprecated rgmii-*id behavior */
int num_tx_desc; /* TX descriptors per packet */
};
static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg)
{
struct ravb_private *priv = netdev_priv(ndev);
return ioread32(priv->addr + reg);
}
static inline void ravb_write(struct net_device *ndev, u32 data,
enum ravb_reg reg)
{
struct ravb_private *priv = netdev_priv(ndev);
iowrite32(data, priv->addr + reg);
}
void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear,
u32 set);
int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value);
void ravb_ptp_interrupt(struct net_device *ndev);
void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev);
void ravb_ptp_stop(struct net_device *ndev);
#endif /* #ifndef __RAVB_H__ */
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