/* * SuperH Ethernet device driver * * Copyright (C) 2006-2008 Nobuhiro Iwamatsu * Copyright (C) 2008 Renesas Solutions Corp. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * * The full GNU General Public License is included in this distribution in * the file called "COPYING". */ #ifndef __SH_ETH_H__ #define __SH_ETH_H__ #include <linux/module.h> #include <linux/kernel.h> #include <linux/spinlock.h> #include <linux/workqueue.h> #include <linux/netdevice.h> #include <linux/phy.h> #define CARDNAME "sh-eth" #define TX_TIMEOUT (5*HZ) #define TX_RING_SIZE 128 /* Tx ring size */ #define RX_RING_SIZE 128 /* Rx ring size */ #define RX_OFFSET 2 /* skb offset */ #define ETHERSMALL 60 #define PKT_BUF_SZ 1538 /* Chip Base Address */ #define SH_TSU_ADDR 0xA7000804 /* Chip Registers */ /* E-DMAC */ #define EDMR 0x0000 #define EDTRR 0x0004 #define EDRRR 0x0008 #define TDLAR 0x000C #define RDLAR 0x0010 #define EESR 0x0014 #define EESIPR 0x0018 #define TRSCER 0x001C #define RMFCR 0x0020 #define TFTR 0x0024 #define FDR 0x0028 #define RMCR 0x002C #define EDOCR 0x0030 #define FCFTR 0x0034 #define RPADIR 0x0038 #define TRIMD 0x003C #define RBWAR 0x0040 #define RDFAR 0x0044 #define TBRAR 0x004C #define TDFAR 0x0050 /* Ether Register */ #define ECMR 0x0160 #define ECSR 0x0164 #define ECSIPR 0x0168 #define PIR 0x016C #define MAHR 0x0170 #define MALR 0x0174 #define RFLR 0x0178 #define PSR 0x017C #define TROCR 0x0180 #define CDCR 0x0184 #define LCCR 0x0188 #define CNDCR 0x018C #define CEFCR 0x0194 #define FRECR 0x0198 #define TSFRCR 0x019C #define TLFRCR 0x01A0 #define RFCR 0x01A4 #define MAFCR 0x01A8 #define IPGR 0x01B4 #if defined(CONFIG_CPU_SUBTYPE_SH7710) #define APR 0x01B8 #define MPR 0x01BC #define TPAUSER 0x1C4 #define BCFR 0x1CC #endif /* CONFIG_CPU_SH7710 */ #define ARSTR 0x0800 /* TSU */ #define TSU_CTRST 0x004 #define TSU_FWEN0 0x010 #define TSU_FWEN1 0x014 #define TSU_FCM 0x018 #define TSU_BSYSL0 0x020 #define TSU_BSYSL1 0x024 #define TSU_PRISL0 0x028 #define TSU_PRISL1 0x02C #define TSU_FWSL0 0x030 #define TSU_FWSL1 0x034 #define TSU_FWSLC 0x038 #define TSU_QTAGM0 0x040 #define TSU_QTAGM1 0x044 #define TSU_ADQT0 0x048 #define TSU_ADQT1 0x04C #define TSU_FWSR 0x050 #define TSU_FWINMK 0x054 #define TSU_ADSBSY 0x060 #define TSU_TEN 0x064 #define TSU_POST1 0x070 #define TSU_POST2 0x074 #define TSU_POST3 0x078 #define TSU_POST4 0x07C #define TXNLCR0 0x080 #define TXALCR0 0x084 #define RXNLCR0 0x088 #define RXALCR0 0x08C #define FWNLCR0 0x090 #define FWALCR0 0x094 #define TXNLCR1 0x0A0 #define TXALCR1 0x0A4 #define RXNLCR1 0x0A8 #define RXALCR1 0x0AC #define FWNLCR1 0x0B0 #define FWALCR1 0x0B4 #define TSU_ADRH0 0x0100 #define TSU_ADRL0 0x0104 #define TSU_ADRL31 0x01FC /* Register's bits */ /* EDMR */ enum DMAC_M_BIT { EDMR_DL1 = 0x20, EDMR_DL0 = 0x10, EDMR_SRST = 0x01, }; /* EDTRR */ enum DMAC_T_BIT { EDTRR_TRNS = 0x01, }; /* EDRRR*/ enum EDRRR_R_BIT { EDRRR_R = 0x01, }; /* TPAUSER */ enum TPAUSER_BIT { TPAUSER_TPAUSE = 0x0000ffff, TPAUSER_UNLIMITED = 0, }; /* BCFR */ enum BCFR_BIT { BCFR_RPAUSE = 0x0000ffff, BCFR_UNLIMITED = 0, }; /* PIR */ enum PIR_BIT { PIR_MDI = 0x08, PIR_MDO = 0x04, PIR_MMD = 0x02, PIR_MDC = 0x01, }; /* PSR */ enum PHY_STATUS_BIT { PHY_ST_LINK = 0x01, }; /* EESR */ enum EESR_BIT { EESR_TWB = 0x40000000, EESR_TABT = 0x04000000, EESR_RABT = 0x02000000, EESR_RFRMER = 0x01000000, EESR_ADE = 0x00800000, EESR_ECI = 0x00400000, EESR_FTC = 0x00200000, EESR_TDE = 0x00100000, EESR_TFE = 0x00080000, EESR_FRC = 0x00040000, EESR_RDE = 0x00020000, EESR_RFE = 0x00010000, EESR_TINT4 = 0x00000800, EESR_TINT3 = 0x00000400, EESR_TINT2 = 0x00000200, EESR_TINT1 = 0x00000100, EESR_RINT8 = 0x00000080, EESR_RINT5 = 0x00000010, EESR_RINT4 = 0x00000008, EESR_RINT3 = 0x00000004, EESR_RINT2 = 0x00000002, EESR_RINT1 = 0x00000001, }; #define EESR_ERR_CHECK (EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE \ | EESR_RFRMER | EESR_ADE | EESR_TFE | EESR_TDE | EESR_ECI) /* EESIPR */ enum DMAC_IM_BIT { DMAC_M_TWB = 0x40000000, DMAC_M_TABT = 0x04000000, DMAC_M_RABT = 0x02000000, DMAC_M_RFRMER = 0x01000000, DMAC_M_ADF = 0x00800000, DMAC_M_ECI = 0x00400000, DMAC_M_FTC = 0x00200000, DMAC_M_TDE = 0x00100000, DMAC_M_TFE = 0x00080000, DMAC_M_FRC = 0x00040000, DMAC_M_RDE = 0x00020000, DMAC_M_RFE = 0x00010000, DMAC_M_TINT4 = 0x00000800, DMAC_M_TINT3 = 0x00000400, DMAC_M_TINT2 = 0x00000200, DMAC_M_TINT1 = 0x00000100, DMAC_M_RINT8 = 0x00000080, DMAC_M_RINT5 = 0x00000010, DMAC_M_RINT4 = 0x00000008, DMAC_M_RINT3 = 0x00000004, DMAC_M_RINT2 = 0x00000002, DMAC_M_RINT1 = 0x00000001, }; /* Receive descriptor bit */ enum RD_STS_BIT { RD_RACT = 0x80000000, RC_RDEL = 0x40000000, RC_RFP1 = 0x20000000, RC_RFP0 = 0x10000000, RD_RFE = 0x08000000, RD_RFS10 = 0x00000200, RD_RFS9 = 0x00000100, RD_RFS8 = 0x00000080, RD_RFS7 = 0x00000040, RD_RFS6 = 0x00000020, RD_RFS5 = 0x00000010, RD_RFS4 = 0x00000008, RD_RFS3 = 0x00000004, RD_RFS2 = 0x00000002, RD_RFS1 = 0x00000001, }; #define RDF1ST RC_RFP1 #define RDFEND RC_RFP0 #define RD_RFP (RC_RFP1|RC_RFP0) /* FCFTR */ enum FCFTR_BIT { FCFTR_RFF2 = 0x00040000, FCFTR_RFF1 = 0x00020000, FCFTR_RFF0 = 0x00010000, FCFTR_RFD2 = 0x00000004, FCFTR_RFD1 = 0x00000002, FCFTR_RFD0 = 0x00000001, }; #define FIFO_F_D_RFF (FCFTR_RFF2|FCFTR_RFF1|FCFTR_RFF0) #define FIFO_F_D_RFD (FCFTR_RFD2|FCFTR_RFD1|FCFTR_RFD0) /* Transfer descriptor bit */ enum TD_STS_BIT { TD_TACT = 0x80000000, TD_TDLE = 0x40000000, TD_TFP1 = 0x20000000, TD_TFP0 = 0x10000000, }; #define TDF1ST TD_TFP1 #define TDFEND TD_TFP0 #define TD_TFP (TD_TFP1|TD_TFP0) /* RMCR */ enum RECV_RST_BIT { RMCR_RST = 0x01, }; /* ECMR */ enum FELIC_MODE_BIT { ECMR_ZPF = 0x00080000, ECMR_PFR = 0x00040000, ECMR_RXF = 0x00020000, ECMR_TXF = 0x00010000, ECMR_MCT = 0x00002000, ECMR_PRCEF = 0x00001000, ECMR_PMDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020, ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004, ECMR_DM = 0x00000002, ECMR_PRM = 0x00000001, }; /* ECSR */ enum ECSR_STATUS_BIT { ECSR_BRCRX = 0x20, ECSR_PSRTO = 0x10, ECSR_LCHNG = 0x04, ECSR_MPD = 0x02, ECSR_ICD = 0x01, }; /* ECSIPR */ enum ECSIPR_STATUS_MASK_BIT { ECSIPR_BRCRXIP = 0x20, ECSIPR_PSRTOIP = 0x10, ECSIPR_LCHNGIP = 0x04, ECSIPR_MPDIP = 0x02, ECSIPR_ICDIP = 0x01, }; /* APR */ enum APR_BIT { APR_AP = 0x00000001, }; /* MPR */ enum MPR_BIT { MPR_MP = 0x00000001, }; /* TRSCER */ enum DESC_I_BIT { DESC_I_TINT4 = 0x0800, DESC_I_TINT3 = 0x0400, DESC_I_TINT2 = 0x0200, DESC_I_TINT1 = 0x0100, DESC_I_RINT8 = 0x0080, DESC_I_RINT5 = 0x0010, DESC_I_RINT4 = 0x0008, DESC_I_RINT3 = 0x0004, DESC_I_RINT2 = 0x0002, DESC_I_RINT1 = 0x0001, }; /* RPADIR */ enum RPADIR_BIT { RPADIR_PADS1 = 0x20000, RPADIR_PADS0 = 0x10000, RPADIR_PADR = 0x0003f, }; /* FDR */ enum FIFO_SIZE_BIT { FIFO_SIZE_T = 0x00000700, FIFO_SIZE_R = 0x00000007, }; enum phy_offsets { PHY_CTRL = 0, PHY_STAT = 1, PHY_IDT1 = 2, PHY_IDT2 = 3, PHY_ANA = 4, PHY_ANL = 5, PHY_ANE = 6, PHY_16 = 16, }; /* PHY_CTRL */ enum PHY_CTRL_BIT { PHY_C_RESET = 0x8000, PHY_C_LOOPBK = 0x4000, PHY_C_SPEEDSL = 0x2000, PHY_C_ANEGEN = 0x1000, PHY_C_PWRDN = 0x0800, PHY_C_ISO = 0x0400, PHY_C_RANEG = 0x0200, PHY_C_DUPLEX = 0x0100, PHY_C_COLT = 0x0080, }; #define DM9161_PHY_C_ANEGEN 0 /* auto nego special */ /* PHY_STAT */ enum PHY_STAT_BIT { PHY_S_100T4 = 0x8000, PHY_S_100X_F = 0x4000, PHY_S_100X_H = 0x2000, PHY_S_10T_F = 0x1000, PHY_S_10T_H = 0x0800, PHY_S_ANEGC = 0x0020, PHY_S_RFAULT = 0x0010, PHY_S_ANEGA = 0x0008, PHY_S_LINK = 0x0004, PHY_S_JAB = 0x0002, PHY_S_EXTD = 0x0001, }; /* PHY_ANA */ enum PHY_ANA_BIT { PHY_A_NP = 0x8000, PHY_A_ACK = 0x4000, PHY_A_RF = 0x2000, PHY_A_FCS = 0x0400, PHY_A_T4 = 0x0200, PHY_A_FDX = 0x0100, PHY_A_HDX = 0x0080, PHY_A_10FDX = 0x0040, PHY_A_10HDX = 0x0020, PHY_A_SEL = 0x001f, }; /* PHY_ANL */ enum PHY_ANL_BIT { PHY_L_NP = 0x8000, PHY_L_ACK = 0x4000, PHY_L_RF = 0x2000, PHY_L_FCS = 0x0400, PHY_L_T4 = 0x0200, PHY_L_FDX = 0x0100, PHY_L_HDX = 0x0080, PHY_L_10FDX = 0x0040, PHY_L_10HDX = 0x0020, PHY_L_SEL = 0x001f, }; /* PHY_ANE */ enum PHY_ANE_BIT { PHY_E_PDF = 0x0010, PHY_E_LPNPA = 0x0008, PHY_E_NPA = 0x0004, PHY_E_PRX = 0x0002, PHY_E_LPANEGA = 0x0001, }; /* DM9161 */ enum PHY_16_BIT { PHY_16_BP4B45 = 0x8000, PHY_16_BPSCR = 0x4000, PHY_16_BPALIGN = 0x2000, PHY_16_BP_ADPOK = 0x1000, PHY_16_Repeatmode = 0x0800, PHY_16_TXselect = 0x0400, PHY_16_Rsvd = 0x0200, PHY_16_RMIIEnable = 0x0100, PHY_16_Force100LNK = 0x0080, PHY_16_APDLED_CTL = 0x0040, PHY_16_COLLED_CTL = 0x0020, PHY_16_RPDCTR_EN = 0x0010, PHY_16_ResetStMch = 0x0008, PHY_16_PreamSupr = 0x0004, PHY_16_Sleepmode = 0x0002, PHY_16_RemoteLoopOut = 0x0001, }; #define POST_RX 0x08 #define POST_FW 0x04 #define POST0_RX (POST_RX) #define POST0_FW (POST_FW) #define POST1_RX (POST_RX >> 2) #define POST1_FW (POST_FW >> 2) #define POST_ALL (POST0_RX | POST0_FW | POST1_RX | POST1_FW) /* ARSTR */ enum ARSTR_BIT { ARSTR_ARSTR = 0x00000001, }; /* TSU_FWEN0 */ enum TSU_FWEN0_BIT { TSU_FWEN0_0 = 0x00000001, }; /* TSU_ADSBSY */ enum TSU_ADSBSY_BIT { TSU_ADSBSY_0 = 0x00000001, }; /* TSU_TEN */ enum TSU_TEN_BIT { TSU_TEN_0 = 0x80000000, }; /* TSU_FWSL0 */ enum TSU_FWSL0_BIT { TSU_FWSL0_FW50 = 0x1000, TSU_FWSL0_FW40 = 0x0800, TSU_FWSL0_FW30 = 0x0400, TSU_FWSL0_FW20 = 0x0200, TSU_FWSL0_FW10 = 0x0100, TSU_FWSL0_RMSA0 = 0x0010, }; /* TSU_FWSLC */ enum TSU_FWSLC_BIT { TSU_FWSLC_POSTENU = 0x2000, TSU_FWSLC_POSTENL = 0x1000, TSU_FWSLC_CAMSEL03 = 0x0080, TSU_FWSLC_CAMSEL02 = 0x0040, TSU_FWSLC_CAMSEL01 = 0x0020, TSU_FWSLC_CAMSEL00 = 0x0010, TSU_FWSLC_CAMSEL13 = 0x0008, TSU_FWSLC_CAMSEL12 = 0x0004, TSU_FWSLC_CAMSEL11 = 0x0002, TSU_FWSLC_CAMSEL10 = 0x0001, }; /* * The sh ether Tx buffer descriptors. * This structure should be 20 bytes. */ struct sh_eth_txdesc { u32 status; /* TD0 */ #if defined(CONFIG_CPU_LITTLE_ENDIAN) u16 pad0; /* TD1 */ u16 buffer_length; /* TD1 */ #else u16 buffer_length; /* TD1 */ u16 pad0; /* TD1 */ #endif u32 addr; /* TD2 */ u32 pad1; /* padding data */ }; /* * The sh ether Rx buffer descriptors. * This structure should be 20 bytes. */ struct sh_eth_rxdesc { u32 status; /* RD0 */ #if defined(CONFIG_CPU_LITTLE_ENDIAN) u16 frame_length; /* RD1 */ u16 buffer_length; /* RD1 */ #else u16 buffer_length; /* RD1 */ u16 frame_length; /* RD1 */ #endif u32 addr; /* RD2 */ u32 pad0; /* padding data */ }; struct sh_eth_private { dma_addr_t rx_desc_dma; dma_addr_t tx_desc_dma; struct sh_eth_rxdesc *rx_ring; struct sh_eth_txdesc *tx_ring; struct sk_buff **rx_skbuff; struct sk_buff **tx_skbuff; struct net_device_stats stats; struct timer_list timer; spinlock_t lock; u32 cur_rx, dirty_rx; /* Producer/consumer ring indices */ u32 cur_tx, dirty_tx; u32 rx_buf_sz; /* Based on MTU+slack. */ /* MII transceiver section. */ u32 phy_id; /* PHY ID */ struct mii_bus *mii_bus; /* MDIO bus control */ struct phy_device *phydev; /* PHY device control */ enum phy_state link; int msg_enable; int speed; int duplex; u32 rx_int_var, tx_int_var; /* interrupt control variables */ char post_rx; /* POST receive */ char post_fw; /* POST forward */ struct net_device_stats tsu_stats; /* TSU forward status */ }; static void swaps(char *src, int len) { #ifdef __LITTLE_ENDIAN__ u32 *p = (u32 *)src; u32 *maxp; maxp = p + ((len + sizeof(u32) - 1) / sizeof(u32)); for (; p < maxp; p++) *p = swab32(*p); #endif } #endif