| /* |
| * 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 |