usb: eth: add Realtek RTL8152B/RTL8153 DRIVER

This patch adds driver support for the Realtek RTL8152B/RTL8153 USB
network adapters.

Signed-off-by: Ted Chen <tedchen at realtek.com>
[swarren, fixed a few compiler warnings]
[swarren, with permission, converted license header to SPDX]
[swarren, removed printf() spew during probe()]
Signed-off-by: Stephen Warren <swarren at nvidia.com>
diff --git a/drivers/usb/eth/r8152.h b/drivers/usb/eth/r8152.h
new file mode 100644
index 0000000..cd44da2
--- /dev/null
+++ b/drivers/usb/eth/r8152.h
@@ -0,0 +1,631 @@
+/*
+ * Copyright (c) 2015 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * SPDX-License-Identifier:     GPL-2.0
+ *
+  */
+
+#ifndef _RTL8152_ETH_H
+#define _RTL8152_ETH_H
+
+#define R8152_BASE_NAME		"r8152"
+
+#define PLA_IDR			0xc000
+#define PLA_RCR			0xc010
+#define PLA_RMS			0xc016
+#define PLA_RXFIFO_CTRL0	0xc0a0
+#define PLA_RXFIFO_CTRL1	0xc0a4
+#define PLA_RXFIFO_CTRL2	0xc0a8
+#define PLA_DMY_REG0		0xc0b0
+#define PLA_FMC			0xc0b4
+#define PLA_CFG_WOL		0xc0b6
+#define PLA_TEREDO_CFG		0xc0bc
+#define PLA_MAR			0xcd00
+#define PLA_BACKUP		0xd000
+#define PAL_BDC_CR		0xd1a0
+#define PLA_TEREDO_TIMER	0xd2cc
+#define PLA_REALWOW_TIMER	0xd2e8
+#define PLA_LEDSEL		0xdd90
+#define PLA_LED_FEATURE		0xdd92
+#define PLA_PHYAR		0xde00
+#define PLA_BOOT_CTRL		0xe004
+#define PLA_GPHY_INTR_IMR	0xe022
+#define PLA_EEE_CR		0xe040
+#define PLA_EEEP_CR		0xe080
+#define PLA_MAC_PWR_CTRL	0xe0c0
+#define PLA_MAC_PWR_CTRL2	0xe0ca
+#define PLA_MAC_PWR_CTRL3	0xe0cc
+#define PLA_MAC_PWR_CTRL4	0xe0ce
+#define PLA_WDT6_CTRL		0xe428
+#define PLA_TCR0		0xe610
+#define PLA_TCR1		0xe612
+#define PLA_MTPS		0xe615
+#define PLA_TXFIFO_CTRL		0xe618
+#define PLA_RSTTALLY		0xe800
+#define BIST_CTRL		0xe810
+#define PLA_CR			0xe813
+#define PLA_CRWECR		0xe81c
+#define PLA_CONFIG12		0xe81e	/* CONFIG1, CONFIG2 */
+#define PLA_CONFIG34		0xe820	/* CONFIG3, CONFIG4 */
+#define PLA_CONFIG5		0xe822
+#define PLA_PHY_PWR		0xe84c
+#define PLA_OOB_CTRL		0xe84f
+#define PLA_CPCR		0xe854
+#define PLA_MISC_0		0xe858
+#define PLA_MISC_1		0xe85a
+#define PLA_OCP_GPHY_BASE	0xe86c
+#define PLA_TALLYCNT		0xe890
+#define PLA_SFF_STS_7		0xe8de
+#define PLA_PHYSTATUS		0xe908
+#define PLA_BP_BA		0xfc26
+#define PLA_BP_0		0xfc28
+#define PLA_BP_1		0xfc2a
+#define PLA_BP_2		0xfc2c
+#define PLA_BP_3		0xfc2e
+#define PLA_BP_4		0xfc30
+#define PLA_BP_5		0xfc32
+#define PLA_BP_6		0xfc34
+#define PLA_BP_7		0xfc36
+#define PLA_BP_EN		0xfc38
+
+#define USB_USB2PHY		0xb41e
+#define USB_SSPHYLINK2		0xb428
+#define USB_U2P3_CTRL		0xb460
+#define USB_CSR_DUMMY1		0xb464
+#define USB_CSR_DUMMY2		0xb466
+#define USB_DEV_STAT		0xb808
+#define USB_CONNECT_TIMER	0xcbf8
+#define USB_BURST_SIZE		0xcfc0
+#define USB_USB_CTRL		0xd406
+#define USB_PHY_CTRL		0xd408
+#define USB_TX_AGG		0xd40a
+#define USB_RX_BUF_TH		0xd40c
+#define USB_USB_TIMER		0xd428
+#define USB_RX_EARLY_TIMEOUT	0xd42c
+#define USB_RX_EARLY_SIZE	0xd42e
+#define USB_PM_CTRL_STATUS	0xd432
+#define USB_TX_DMA		0xd434
+#define USB_TOLERANCE		0xd490
+#define USB_LPM_CTRL		0xd41a
+#define USB_UPS_CTRL		0xd800
+#define USB_MISC_0		0xd81a
+#define USB_POWER_CUT		0xd80a
+#define USB_AFE_CTRL2		0xd824
+#define USB_WDT11_CTRL		0xe43c
+#define USB_BP_BA		0xfc26
+#define USB_BP_0		0xfc28
+#define USB_BP_1		0xfc2a
+#define USB_BP_2		0xfc2c
+#define USB_BP_3		0xfc2e
+#define USB_BP_4		0xfc30
+#define USB_BP_5		0xfc32
+#define USB_BP_6		0xfc34
+#define USB_BP_7		0xfc36
+#define USB_BP_EN		0xfc38
+
+/* OCP Registers */
+#define OCP_ALDPS_CONFIG	0x2010
+#define OCP_EEE_CONFIG1		0x2080
+#define OCP_EEE_CONFIG2		0x2092
+#define OCP_EEE_CONFIG3		0x2094
+#define OCP_BASE_MII		0xa400
+#define OCP_EEE_AR		0xa41a
+#define OCP_EEE_DATA		0xa41c
+#define OCP_PHY_STATUS		0xa420
+#define OCP_POWER_CFG		0xa430
+#define OCP_EEE_CFG		0xa432
+#define OCP_SRAM_ADDR		0xa436
+#define OCP_SRAM_DATA		0xa438
+#define OCP_DOWN_SPEED		0xa442
+#define OCP_EEE_ABLE		0xa5c4
+#define OCP_EEE_ADV		0xa5d0
+#define OCP_EEE_LPABLE		0xa5d2
+#define OCP_PHY_STATE		0xa708		/* nway state for 8153 */
+#define OCP_ADC_CFG		0xbc06
+
+/* SRAM Register */
+#define SRAM_LPF_CFG		0x8012
+#define SRAM_10M_AMP1		0x8080
+#define SRAM_10M_AMP2		0x8082
+#define SRAM_IMPEDANCE		0x8084
+
+/* PLA_RCR */
+#define RCR_AAP			0x00000001
+#define RCR_APM			0x00000002
+#define RCR_AM			0x00000004
+#define RCR_AB			0x00000008
+#define RCR_ACPT_ALL		(RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
+
+/* PLA_RXFIFO_CTRL0 */
+#define RXFIFO_THR1_NORMAL	0x00080002
+#define RXFIFO_THR1_OOB		0x01800003
+
+/* PLA_RXFIFO_CTRL1 */
+#define RXFIFO_THR2_FULL	0x00000060
+#define RXFIFO_THR2_HIGH	0x00000038
+#define RXFIFO_THR2_OOB		0x0000004a
+#define RXFIFO_THR2_NORMAL	0x00a0
+
+/* PLA_RXFIFO_CTRL2 */
+#define RXFIFO_THR3_FULL	0x00000078
+#define RXFIFO_THR3_HIGH	0x00000048
+#define RXFIFO_THR3_OOB		0x0000005a
+#define RXFIFO_THR3_NORMAL	0x0110
+
+/* PLA_TXFIFO_CTRL */
+#define TXFIFO_THR_NORMAL	0x00400008
+#define TXFIFO_THR_NORMAL2	0x01000008
+
+/* PLA_DMY_REG0 */
+#define ECM_ALDPS		0x0002
+
+/* PLA_FMC */
+#define FMC_FCR_MCU_EN		0x0001
+
+/* PLA_EEEP_CR */
+#define EEEP_CR_EEEP_TX		0x0002
+
+/* PLA_WDT6_CTRL */
+#define WDT6_SET_MODE		0x0010
+
+/* PLA_TCR0 */
+#define TCR0_TX_EMPTY		0x0800
+#define TCR0_AUTO_FIFO		0x0080
+
+/* PLA_TCR1 */
+#define VERSION_MASK		0x7cf0
+
+/* PLA_MTPS */
+#define MTPS_JUMBO		(12 * 1024 / 64)
+#define MTPS_DEFAULT		(6 * 1024 / 64)
+
+/* PLA_RSTTALLY */
+#define TALLY_RESET		0x0001
+
+/* PLA_CR */
+#define PLA_CR_RST		0x10
+#define PLA_CR_RE		0x08
+#define PLA_CR_TE		0x04
+
+/* PLA_BIST_CTRL */
+#define BIST_CTRL_SW_RESET (0x10 << 24)
+
+/* PLA_CRWECR */
+#define CRWECR_NORAML		0x00
+#define CRWECR_CONFIG		0xc0
+
+/* PLA_OOB_CTRL */
+#define NOW_IS_OOB		0x80
+#define TXFIFO_EMPTY		0x20
+#define RXFIFO_EMPTY		0x10
+#define LINK_LIST_READY		0x02
+#define DIS_MCU_CLROOB		0x01
+#define FIFO_EMPTY		(TXFIFO_EMPTY | RXFIFO_EMPTY)
+
+/* PLA_PHY_PWR */
+#define PLA_PHY_PWR_LLR	(LINK_LIST_READY << 24)
+#define PLA_PHY_PWR_TXEMP	(TXFIFO_EMPTY << 24)
+
+/* PLA_MISC_1 */
+#define RXDY_GATED_EN		0x0008
+
+/* PLA_SFF_STS_7 */
+#define RE_INIT_LL		0x8000
+#define MCU_BORW_EN		0x4000
+
+/* PLA_CPCR */
+#define CPCR_RX_VLAN		0x0040
+
+/* PLA_CFG_WOL */
+#define MAGIC_EN		0x0001
+
+/* PLA_TEREDO_CFG */
+#define TEREDO_SEL		0x8000
+#define TEREDO_WAKE_MASK	0x7f00
+#define TEREDO_RS_EVENT_MASK	0x00fe
+#define OOB_TEREDO_EN		0x0001
+
+/* PAL_BDC_CR */
+#define ALDPS_PROXY_MODE	0x0001
+
+/* PLA_CONFIG34 */
+#define LINK_ON_WAKE_EN		0x0010
+#define LINK_OFF_WAKE_EN	0x0008
+
+/* PLA_CONFIG5 */
+#define BWF_EN			0x0040
+#define MWF_EN			0x0020
+#define UWF_EN			0x0010
+#define LAN_WAKE_EN		0x0002
+
+/* PLA_LED_FEATURE */
+#define LED_MODE_MASK		0x0700
+
+/* PLA_PHY_PWR */
+#define TX_10M_IDLE_EN		0x0080
+#define PFM_PWM_SWITCH		0x0040
+
+/* PLA_MAC_PWR_CTRL */
+#define D3_CLK_GATED_EN		0x00004000
+#define MCU_CLK_RATIO		0x07010f07
+#define MCU_CLK_RATIO_MASK	0x0f0f0f0f
+#define ALDPS_SPDWN_RATIO	0x0f87
+
+/* PLA_MAC_PWR_CTRL2 */
+#define EEE_SPDWN_RATIO		0x8007
+
+/* PLA_MAC_PWR_CTRL3 */
+#define PKT_AVAIL_SPDWN_EN	0x0100
+#define SUSPEND_SPDWN_EN	0x0004
+#define U1U2_SPDWN_EN		0x0002
+#define L1_SPDWN_EN		0x0001
+
+/* PLA_MAC_PWR_CTRL4 */
+#define PWRSAVE_SPDWN_EN	0x1000
+#define RXDV_SPDWN_EN		0x0800
+#define TX10MIDLE_EN		0x0100
+#define TP100_SPDWN_EN		0x0020
+#define TP500_SPDWN_EN		0x0010
+#define TP1000_SPDWN_EN		0x0008
+#define EEE_SPDWN_EN		0x0001
+
+/* PLA_GPHY_INTR_IMR */
+#define GPHY_STS_MSK		0x0001
+#define SPEED_DOWN_MSK		0x0002
+#define SPDWN_RXDV_MSK		0x0004
+#define SPDWN_LINKCHG_MSK	0x0008
+
+/* PLA_PHYAR */
+#define PHYAR_FLAG		0x80000000
+
+/* PLA_EEE_CR */
+#define EEE_RX_EN		0x0001
+#define EEE_TX_EN		0x0002
+
+/* PLA_BOOT_CTRL */
+#define AUTOLOAD_DONE		0x0002
+
+/* USB_USB2PHY */
+#define USB2PHY_SUSPEND		0x0001
+#define USB2PHY_L1		0x0002
+
+/* USB_SSPHYLINK2 */
+#define pwd_dn_scale_mask	0x3ffe
+#define pwd_dn_scale(x)		((x) << 1)
+
+/* USB_CSR_DUMMY1 */
+#define DYNAMIC_BURST		0x0001
+
+/* USB_CSR_DUMMY2 */
+#define EP4_FULL_FC		0x0001
+
+/* USB_DEV_STAT */
+#define STAT_SPEED_MASK		0x0006
+#define STAT_SPEED_HIGH		0x0000
+#define STAT_SPEED_FULL		0x0002
+
+/* USB_TX_AGG */
+#define TX_AGG_MAX_THRESHOLD	0x03
+
+/* USB_RX_BUF_TH */
+#define RX_THR_SUPPER		0x0c350180
+#define RX_THR_HIGH		0x7a120180
+#define RX_THR_SLOW		0xffff0180
+
+/* USB_TX_DMA */
+#define TEST_MODE_DISABLE	0x00000001
+#define TX_SIZE_ADJUST1		0x00000100
+
+/* USB_UPS_CTRL */
+#define POWER_CUT		0x0100
+
+/* USB_PM_CTRL_STATUS */
+#define RESUME_INDICATE		0x0001
+
+/* USB_USB_CTRL */
+#define RX_AGG_DISABLE		0x0010
+#define RX_ZERO_EN		0x0080
+
+/* USB_U2P3_CTRL */
+#define U2P3_ENABLE		0x0001
+
+/* USB_POWER_CUT */
+#define PWR_EN			0x0001
+#define PHASE2_EN		0x0008
+
+/* USB_MISC_0 */
+#define PCUT_STATUS		0x0001
+
+/* USB_RX_EARLY_TIMEOUT */
+#define COALESCE_SUPER		 85000U
+#define COALESCE_HIGH		250000U
+#define COALESCE_SLOW		524280U
+
+/* USB_WDT11_CTRL */
+#define TIMER11_EN		0x0001
+
+/* USB_LPM_CTRL */
+/* bit 4 ~ 5: fifo empty boundary */
+#define FIFO_EMPTY_1FB		0x30	/* 0x1fb * 64 = 32448 bytes */
+/* bit 2 ~ 3: LMP timer */
+#define LPM_TIMER_MASK		0x0c
+#define LPM_TIMER_500MS		0x04	/* 500 ms */
+#define LPM_TIMER_500US		0x0c	/* 500 us */
+#define ROK_EXIT_LPM		0x02
+
+/* USB_AFE_CTRL2 */
+#define SEN_VAL_MASK		0xf800
+#define SEN_VAL_NORMAL		0xa000
+#define SEL_RXIDLE		0x0100
+
+/* OCP_ALDPS_CONFIG */
+#define ENPWRSAVE		0x8000
+#define ENPDNPS			0x0200
+#define LINKENA			0x0100
+#define DIS_SDSAVE		0x0010
+
+/* OCP_PHY_STATUS */
+#define PHY_STAT_MASK		0x0007
+#define PHY_STAT_LAN_ON		3
+#define PHY_STAT_PWRDN		5
+
+/* OCP_POWER_CFG */
+#define EEE_CLKDIV_EN		0x8000
+#define EN_ALDPS		0x0004
+#define EN_10M_PLLOFF		0x0001
+
+/* OCP_EEE_CONFIG1 */
+#define RG_TXLPI_MSK_HFDUP	0x8000
+#define RG_MATCLR_EN		0x4000
+#define EEE_10_CAP		0x2000
+#define EEE_NWAY_EN		0x1000
+#define TX_QUIET_EN		0x0200
+#define RX_QUIET_EN		0x0100
+#define sd_rise_time_mask	0x0070
+#define sd_rise_time(x)		(min((x), 7) << 4)	/* bit 4 ~ 6 */
+#define RG_RXLPI_MSK_HFDUP	0x0008
+#define SDFALLTIME		0x0007	/* bit 0 ~ 2 */
+
+/* OCP_EEE_CONFIG2 */
+#define RG_LPIHYS_NUM		0x7000	/* bit 12 ~ 15 */
+#define RG_DACQUIET_EN		0x0400
+#define RG_LDVQUIET_EN		0x0200
+#define RG_CKRSEL		0x0020
+#define RG_EEEPRG_EN		0x0010
+
+/* OCP_EEE_CONFIG3 */
+#define fast_snr_mask		0xff80
+#define fast_snr(x)		(min((x), 0x1ff) << 7)	/* bit 7 ~ 15 */
+#define RG_LFS_SEL		0x0060	/* bit 6 ~ 5 */
+#define MSK_PH			0x0006	/* bit 0 ~ 3 */
+
+/* OCP_EEE_AR */
+/* bit[15:14] function */
+#define FUN_ADDR		0x0000
+#define FUN_DATA		0x4000
+/* bit[4:0] device addr */
+
+/* OCP_EEE_CFG */
+#define CTAP_SHORT_EN		0x0040
+#define EEE10_EN		0x0010
+
+/* OCP_DOWN_SPEED */
+#define EN_10M_BGOFF		0x0080
+
+/* OCP_PHY_STATE */
+#define TXDIS_STATE		0x01
+#define ABD_STATE		0x02
+
+/* OCP_ADC_CFG */
+#define CKADSEL_L		0x0100
+#define ADC_EN			0x0080
+#define EN_EMI_L		0x0040
+
+/* SRAM_LPF_CFG */
+#define LPF_AUTO_TUNE		0x8000
+
+/* SRAM_10M_AMP1 */
+#define GDAC_IB_UPALL		0x0008
+
+/* SRAM_10M_AMP2 */
+#define AMP_DN			0x0200
+
+/* SRAM_IMPEDANCE */
+#define RX_DRIVING_MASK		0x6000
+
+#define RTL8152_MAX_TX		4
+#define RTL8152_MAX_RX		10
+#define INTBUFSIZE		2
+#define CRC_SIZE		4
+#define TX_ALIGN		4
+#define RX_ALIGN		8
+
+#define INTR_LINK		0x0004
+
+#define RTL8152_REQT_READ	0xc0
+#define RTL8152_REQT_WRITE	0x40
+#define RTL8152_REQ_GET_REGS	0x05
+#define RTL8152_REQ_SET_REGS	0x05
+
+#define BYTE_EN_DWORD		0xff
+#define BYTE_EN_WORD		0x33
+#define BYTE_EN_BYTE		0x11
+#define BYTE_EN_SIX_BYTES	0x3f
+#define BYTE_EN_START_MASK	0x0f
+#define BYTE_EN_END_MASK	0xf0
+
+#define RTL8152_ETH_FRAME_LEN	1514
+#define RTL8152_AGG_BUF_SZ	2048
+
+#define RTL8152_RMS		(RTL8152_ETH_FRAME_LEN + CRC_SIZE)
+#define RTL8153_RMS		(RTL8152_ETH_FRAME_LEN + CRC_SIZE)
+#define RTL8152_TX_TIMEOUT	(5 * HZ)
+
+#define MCU_TYPE_PLA			0x0100
+#define MCU_TYPE_USB			0x0000
+
+/* The forced speed, 10Mb, 100Mb, gigabit. */
+#define SPEED_10                10
+#define SPEED_100               100
+#define SPEED_1000              1000
+
+#define SPEED_UNKNOWN           -1
+
+/* Duplex, half or full. */
+#define DUPLEX_HALF             0x00
+#define DUPLEX_FULL             0x01
+#define DUPLEX_UNKNOWN          0xff
+
+/* Enable or disable autonegotiation. */
+#define AUTONEG_DISABLE         0x00
+#define AUTONEG_ENABLE          0x01
+
+/* Generic MII registers. */
+#define MII_BMCR                0x00    /* Basic mode control register */
+#define MII_BMSR                0x01    /* Basic mode status register  */
+#define MII_PHYSID1             0x02    /* PHYS ID 1                   */
+#define MII_PHYSID2             0x03    /* PHYS ID 2                   */
+#define MII_ADVERTISE           0x04    /* Advertisement control reg   */
+#define MII_LPA                 0x05    /* Link partner ability reg    */
+#define MII_EXPANSION           0x06    /* Expansion register          */
+#define MII_CTRL1000            0x09    /* 1000BASE-T control          */
+#define MII_STAT1000            0x0a    /* 1000BASE-T status           */
+#define MII_MMD_CTRL            0x0d    /* MMD Access Control Register */
+#define MII_MMD_DATA            0x0e    /* MMD Access Data Register */
+#define MII_ESTATUS             0x0f    /* Extended Status             */
+#define MII_DCOUNTER            0x12    /* Disconnect counter          */
+#define MII_FCSCOUNTER          0x13    /* False carrier counter       */
+#define MII_NWAYTEST            0x14    /* N-way auto-neg test reg     */
+#define MII_RERRCOUNTER         0x15    /* Receive error counter       */
+#define MII_SREVISION           0x16    /* Silicon revision            */
+#define MII_RESV1               0x17    /* Reserved...                 */
+#define MII_LBRERROR            0x18    /* Lpback, rx, bypass error    */
+#define MII_PHYADDR             0x19    /* PHY address                 */
+#define MII_RESV2               0x1a    /* Reserved...                 */
+#define MII_TPISTATUS           0x1b    /* TPI status for 10mbps       */
+#define MII_NCONFIG             0x1c    /* Network interface config    */
+
+#define TIMEOUT_RESOLUTION	50
+#define PHY_CONNECT_TIMEOUT     5000
+#define USB_BULK_SEND_TIMEOUT   5000
+#define USB_BULK_RECV_TIMEOUT   5000
+#define R8152_WAIT_TIMEOUT	2000
+
+struct rx_desc {
+	__le32 opts1;
+#define RD_CRC				BIT(15)
+#define RX_LEN_MASK			0x7fff
+
+	__le32 opts2;
+#define RD_UDP_CS			BIT(23)
+#define RD_TCP_CS			BIT(22)
+#define RD_IPV6_CS			BIT(20)
+#define RD_IPV4_CS			BIT(19)
+
+	__le32 opts3;
+#define IPF				BIT(23) /* IP checksum fail */
+#define UDPF				BIT(22) /* UDP checksum fail */
+#define TCPF				BIT(21) /* TCP checksum fail */
+#define RX_VLAN_TAG			BIT(16)
+
+	__le32 opts4;
+	__le32 opts5;
+	__le32 opts6;
+};
+
+struct tx_desc {
+	__le32 opts1;
+#define TX_FS			BIT(31) /* First segment of a packet */
+#define TX_LS			BIT(30) /* Final segment of a packet */
+#define LGSEND			BIT(29)
+#define GTSENDV4		BIT(28)
+#define GTSENDV6		BIT(27)
+#define GTTCPHO_SHIFT		18
+#define GTTCPHO_MAX		0x7fU
+#define TX_LEN_MAX		0x3ffffU
+
+	__le32 opts2;
+#define UDP_CS			BIT(31) /* Calculate UDP/IP checksum */
+#define TCP_CS			BIT(30) /* Calculate TCP/IP checksum */
+#define IPV4_CS			BIT(29) /* Calculate IPv4 checksum */
+#define IPV6_CS			BIT(28) /* Calculate IPv6 checksum */
+#define MSS_SHIFT		17
+#define MSS_MAX			0x7ffU
+#define TCPHO_SHIFT		17
+#define TCPHO_MAX		0x7ffU
+#define TX_VLAN_TAG		BIT(16)
+};
+
+enum rtl_version {
+	RTL_VER_UNKNOWN = 0,
+	RTL_VER_01,
+	RTL_VER_02,
+	RTL_VER_03,
+	RTL_VER_04,
+	RTL_VER_05,
+	RTL_VER_06,
+	RTL_VER_07,
+	RTL_VER_MAX
+};
+
+enum rtl_register_content {
+	_1000bps	= 0x10,
+	_100bps		= 0x08,
+	_10bps		= 0x04,
+	LINK_STATUS	= 0x02,
+	FULL_DUP	= 0x01,
+};
+
+struct r8152 {
+	struct usb_device *udev;
+	struct usb_interface *intf;
+	bool supports_gmii;
+
+	struct rtl_ops {
+		void (*init)(struct r8152 *);
+		int (*enable)(struct r8152 *);
+		void (*disable)(struct r8152 *);
+		void (*up)(struct r8152 *);
+		void (*down)(struct r8152 *);
+		void (*unload)(struct r8152 *);
+	} rtl_ops;
+
+	u32 coalesce;
+	u16 ocp_base;
+
+	u8 version;
+};
+
+int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
+		      u16 size, void *data, u16 type);
+int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
+		     void *data, u16 type);
+
+int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data);
+int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
+		  u16 size, void *data);
+
+int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data);
+int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
+		  u16 size, void *data);
+
+u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index);
+void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data);
+
+u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index);
+void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data);
+
+u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index);
+void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data);
+
+u16 ocp_reg_read(struct r8152 *tp, u16 addr);
+void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data);
+
+void sram_write(struct r8152 *tp, u16 addr, u16 data);
+
+int r8152_wait_for_bit(struct r8152 *tp, bool ocp_reg, u16 type, u16 index,
+		       const u32 mask, bool set, unsigned int timeout);
+
+void r8152b_firmware(struct r8152 *tp);
+void r8153_firmware(struct r8152 *tp);
+#endif