From 2d98e4990e19e45e1a9b7f1ada4557da57f78581 Mon Sep 17 00:00:00 2001 From: wuyangyong Date: Fri, 14 Oct 2011 09:18:11 +0000 Subject: [PATCH] add lpc178x eth driver git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1765 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- bsp/lpc178x/drivers/SConscript | 13 + bsp/lpc178x/drivers/emac.c | 521 +++++++++++++++++++++++++++++++++ bsp/lpc178x/drivers/emac.h | 295 +++++++++++++++++++ 3 files changed, 829 insertions(+) create mode 100644 bsp/lpc178x/drivers/emac.c create mode 100644 bsp/lpc178x/drivers/emac.h diff --git a/bsp/lpc178x/drivers/SConscript b/bsp/lpc178x/drivers/SConscript index dbcec922cf..34fe4de75f 100644 --- a/bsp/lpc178x/drivers/SConscript +++ b/bsp/lpc178x/drivers/SConscript @@ -1,9 +1,22 @@ +import copy Import('RTT_ROOT') Import('rtconfig') from building import * cwd = GetCurrentDir() src = Glob('*.c') + +# remove no need file. +if GetDepend('RT_USING_LWIP') == False: + src_need_remove = ['emac.c'] # need remove file list. + src_tmp = copy.copy(src) + count = 0 + for i in range(0, len(src_tmp)): + s = str(src_tmp[i]) + if s in src_need_remove: + src.pop(i-count) + count = count + 1 + CPPPATH = [cwd] group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH) diff --git a/bsp/lpc178x/drivers/emac.c b/bsp/lpc178x/drivers/emac.c new file mode 100644 index 0000000000..06bf61693e --- /dev/null +++ b/bsp/lpc178x/drivers/emac.c @@ -0,0 +1,521 @@ +#include "LPC177x_8x.h" +#include "lpc177x_8x_pinsel.h" +#include "emac.h" + +#include +#include "lwipopts.h" +#include + +#define EMAC_PHY_AUTO 0 +#define EMAC_PHY_10MBIT 1 +#define EMAC_PHY_100MBIT 2 + +#define MAX_ADDR_LEN 6 +struct lpc17xx_emac +{ + /* inherit from ethernet device */ + struct eth_device parent; + + rt_uint8_t phy_mode; + + /* interface address info. */ + rt_uint8_t dev_addr[MAX_ADDR_LEN]; /* hw address */ +}; +static struct lpc17xx_emac lpc17xx_emac_device; +static struct rt_semaphore sem_slot, sem_lock; + +/* Local Function Prototypes */ +static void write_PHY (rt_uint32_t PhyReg, rt_uint32_t Value); +static rt_uint16_t read_PHY (rt_uint8_t PhyReg) ; + +void ENET_IRQHandler(void) +{ + rt_uint32_t status; + + /* enter interrupt */ + rt_interrupt_enter(); + + status = LPC_EMAC->IntStatus & LPC_EMAC->IntEnable; + + /* Clear the interrupt. */ + LPC_EMAC->IntClear = status; + + if (status & INT_RX_DONE) + { + /* Disable EMAC RxDone interrupts. */ + LPC_EMAC->IntEnable = INT_TX_DONE; + + /* a frame has been received */ + eth_device_ready(&(lpc17xx_emac_device.parent)); + } + else if (status & INT_TX_DONE) + { + /* release one slot */ + rt_sem_release(&sem_slot); + } + + /* leave interrupt */ + rt_interrupt_leave(); +} + +/* phy write */ +static void write_PHY (rt_uint32_t PhyReg, rt_uint32_t Value) +{ + unsigned int tout; + + LPC_EMAC->MADR = DP83848C_DEF_ADR | PhyReg; + LPC_EMAC->MWTD = Value; + + /* Wait utill operation completed */ + tout = 0; + for (tout = 0; tout < MII_WR_TOUT; tout++) + { + if ((LPC_EMAC->MIND & MIND_BUSY) == 0) + { + break; + } + } +} + +/* phy read */ +static rt_uint16_t read_PHY (rt_uint8_t PhyReg) +{ + rt_uint32_t tout; + + LPC_EMAC->MADR = DP83848C_DEF_ADR | PhyReg; + LPC_EMAC->MCMD = MCMD_READ; + + /* Wait until operation completed */ + tout = 0; + for (tout = 0; tout < MII_RD_TOUT; tout++) + { + if ((LPC_EMAC->MIND & MIND_BUSY) == 0) + { + break; + } + } + LPC_EMAC->MCMD = 0; + return (LPC_EMAC->MRDD); +} + +/* init rx descriptor */ +rt_inline void rx_descr_init (void) +{ + rt_uint32_t i; + + for (i = 0; i < NUM_RX_FRAG; i++) + { + RX_DESC_PACKET(i) = RX_BUF(i); + RX_DESC_CTRL(i) = RCTRL_INT | (ETH_FRAG_SIZE-1); + RX_STAT_INFO(i) = 0; + RX_STAT_HASHCRC(i) = 0; + } + + /* Set EMAC Receive Descriptor Registers. */ + LPC_EMAC->RxDescriptor = RX_DESC_BASE; + LPC_EMAC->RxStatus = RX_STAT_BASE; + LPC_EMAC->RxDescriptorNumber = NUM_RX_FRAG-1; + + /* Rx Descriptors Point to 0 */ + LPC_EMAC->RxConsumeIndex = 0; +} + +/* init tx descriptor */ +rt_inline void tx_descr_init (void) +{ + rt_uint32_t i; + + for (i = 0; i < NUM_TX_FRAG; i++) + { + TX_DESC_PACKET(i) = TX_BUF(i); + TX_DESC_CTRL(i) = (1ul<<31) | (1ul<<30) | (1ul<<29) | (1ul<<28) | (1ul<<26) | (ETH_FRAG_SIZE-1); + TX_STAT_INFO(i) = 0; + } + + /* Set EMAC Transmit Descriptor Registers. */ + LPC_EMAC->TxDescriptor = TX_DESC_BASE; + LPC_EMAC->TxStatus = TX_STAT_BASE; + LPC_EMAC->TxDescriptorNumber = NUM_TX_FRAG-1; + + /* Tx Descriptors Point to 0 */ + LPC_EMAC->TxProduceIndex = 0; +} + +/* +TX_EN P1_4 +TXD0 P1_0 +TXD1 P1_1 + +RXD0 P1_9 +RXD1 P1_10 +RX_ER P1_14 +CRS_DV P1_8 + +MDC P1_16 +MDIO P1_17 + +PHY_RESET P3_19 +REF_CLK P1_15 +*/ +static rt_err_t lpc17xx_emac_init(rt_device_t dev) +{ + /* Initialize the EMAC ethernet controller. */ + rt_uint32_t regv, tout, id1, id2; + + /* Power Up the EMAC controller. */ + LPC_SC->PCONP |= (1UL<<30); + + /* config RESET */ + PINSEL_ConfigPin(3, 19, 0); + PINSEL_SetPinMode(3, 19, IOCON_MODE_PLAIN); + LPC_GPIO3->DIR |= 1<<19; + LPC_GPIO3->CLR = 1<<19; + + /* Enable P1 Ethernet Pins. */ + PINSEL_ConfigPin(1, 0, 1); /**< P1_0 ENET_TXD0 */ + PINSEL_ConfigPin(1, 1, 1); /**< P1_1 ENET_TXD1 */ + PINSEL_ConfigPin(1, 4, 1); /**< P1_4 ENET_TX_EN */ + PINSEL_ConfigPin(1, 8, 1); /**< P1_8 ENET_CRS_DV */ + PINSEL_ConfigPin(1, 9, 1); /**< P1_9 ENET_RXD0 */ + PINSEL_ConfigPin(1, 10, 1); /**< P1_10 ENET_RXD1 */ + PINSEL_ConfigPin(1, 14, 1); /**< P1_14 ENET_RX_ER */ + PINSEL_ConfigPin(1, 15, 1); /**< P1_15 ENET_REF_CLK */ + PINSEL_ConfigPin(1, 16, 1); /**< P1_16 ENET_MDC */ + PINSEL_ConfigPin(1, 17, 1); /**< P1_17 ENET_MDIO */ + + LPC_GPIO3->SET = 1<<19; + + /* Reset all EMAC internal modules. */ + LPC_EMAC->MAC1 = MAC1_RES_TX | MAC1_RES_MCS_TX | MAC1_RES_RX | MAC1_RES_MCS_RX | + MAC1_SIM_RES | MAC1_SOFT_RES; + LPC_EMAC->Command = CR_REG_RES | CR_TX_RES | CR_RX_RES; + + /* A short delay after reset. */ + for (tout = 100; tout; tout--); + + /* Initialize MAC control registers. */ + LPC_EMAC->MAC1 = MAC1_PASS_ALL; + LPC_EMAC->MAC2 = MAC2_CRC_EN | MAC2_PAD_EN; + LPC_EMAC->MAXF = ETH_MAX_FLEN; + LPC_EMAC->CLRT = CLRT_DEF; + LPC_EMAC->IPGR = IPGR_DEF; + + /* PCLK=18MHz, clock select=6, MDC=18/6=3MHz */ + /* Enable Reduced MII interface. */ + LPC_EMAC->MCFG = MCFG_CLK_DIV20 | MCFG_RES_MII; + for (tout = 100; tout; tout--); + LPC_EMAC->MCFG = MCFG_CLK_DIV20; + + /* Enable Reduced MII interface. */ + LPC_EMAC->Command = CR_RMII | CR_PASS_RUNT_FRM | CR_PASS_RX_FILT; + + /* Reset Reduced MII Logic. */ + LPC_EMAC->SUPP = SUPP_RES_RMII | SUPP_SPEED; + for (tout = 100; tout; tout--); + LPC_EMAC->SUPP = SUPP_SPEED; + + /* Put the PHY in reset mode */ + write_PHY (PHY_REG_BMCR, 0x8000); + for (tout = 1000; tout; tout--); + +// /* Wait for hardware reset to end. */ +// for (tout = 0; tout < 0x100000; tout++) +// { +// regv = read_PHY (PHY_REG_BMCR); +// if (!(regv & 0x8000)) +// { +// /* Reset complete */ +// break; +// } +// } +// if (tout >= 0x100000) +// { +// rt_kprintf("reset failed\r\n"); +// return -RT_ERROR; /* reset failed */ +// } + +// /* Check if this is a DP83848C PHY. */ +// id1 = read_PHY (PHY_REG_IDR1); +// id2 = read_PHY (PHY_REG_IDR2); +// +// if (((id1 << 16) | (id2 & 0xFFF0)) != DP83848C_ID) +// return -RT_ERROR; + + /* Configure the PHY device */ + /* Configure the PHY device */ + switch (lpc17xx_emac_device.phy_mode) + { + case EMAC_PHY_AUTO: + /* Use autonegotiation about the link speed. */ + write_PHY (PHY_REG_BMCR, PHY_AUTO_NEG); + /* Wait to complete Auto_Negotiation. */ +// for (tout = 0; tout < 0x100000; tout++) +// { +// regv = read_PHY (PHY_REG_BMSR); +// if (regv & 0x0020) +// { +// /* Autonegotiation Complete. */ +// break; +// } +// } + break; + case EMAC_PHY_10MBIT: + /* Connect at 10MBit */ + write_PHY (PHY_REG_BMCR, PHY_FULLD_10M); + break; + case EMAC_PHY_100MBIT: + /* Connect at 100MBit */ + write_PHY (PHY_REG_BMCR, PHY_FULLD_100M); + break; + } + if (tout >= 0x100000) return -RT_ERROR; // auto_neg failed + +// /* Check the link status. */ +// for (tout = 0; tout < 0x10000; tout++) +// { +// regv = read_PHY (PHY_REG_STS); +// if (regv & 0x0001) +// { +// /* Link is on. */ +// break; +// } +// } +// if (tout >= 0x10000) return -RT_ERROR; + + regv = 0x0004; + /* Configure Full/Half Duplex mode. */ + if (regv & 0x0004) + { + /* Full duplex is enabled. */ + LPC_EMAC->MAC2 |= MAC2_FULL_DUP; + LPC_EMAC->Command |= CR_FULL_DUP; + LPC_EMAC->IPGT = IPGT_FULL_DUP; + } + else + { + /* Half duplex mode. */ + LPC_EMAC->IPGT = IPGT_HALF_DUP; + } + + /* Configure 100MBit/10MBit mode. */ + if (regv & 0x0002) + { + /* 10MBit mode. */ + LPC_EMAC->SUPP = 0; + } + else + { + /* 100MBit mode. */ + LPC_EMAC->SUPP = SUPP_SPEED; + } + + /* Set the Ethernet MAC Address registers */ + LPC_EMAC->SA0 = (lpc17xx_emac_device.dev_addr[1]<<8) | lpc17xx_emac_device.dev_addr[0]; + LPC_EMAC->SA1 = (lpc17xx_emac_device.dev_addr[3]<<8) | lpc17xx_emac_device.dev_addr[2]; + LPC_EMAC->SA2 = (lpc17xx_emac_device.dev_addr[5]<<8) | lpc17xx_emac_device.dev_addr[4]; + + /* Initialize Tx and Rx DMA Descriptors */ + rx_descr_init (); + tx_descr_init (); + + /* Receive Broadcast and Perfect Match Packets */ + LPC_EMAC->RxFilterCtrl = RFC_BCAST_EN | RFC_PERFECT_EN; + + /* Reset all interrupts */ + LPC_EMAC->IntClear = 0xFFFF; + + /* Enable EMAC interrupts. */ + LPC_EMAC->IntEnable = INT_RX_DONE | INT_TX_DONE; + + /* Enable receive and transmit mode of MAC Ethernet core */ + LPC_EMAC->Command |= (CR_RX_EN | CR_TX_EN); + LPC_EMAC->MAC1 |= MAC1_REC_EN; + + /* Enable the ENET Interrupt */ + NVIC_EnableIRQ(ENET_IRQn); + + return RT_EOK; +} + +static rt_err_t lpc17xx_emac_open(rt_device_t dev, rt_uint16_t oflag) +{ + return RT_EOK; +} + +static rt_err_t lpc17xx_emac_close(rt_device_t dev) +{ + return RT_EOK; +} + +static rt_size_t lpc17xx_emac_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size) +{ + rt_set_errno(-RT_ENOSYS); + return 0; +} + +static rt_size_t lpc17xx_emac_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) +{ + rt_set_errno(-RT_ENOSYS); + return 0; +} + +static rt_err_t lpc17xx_emac_control(rt_device_t dev, rt_uint8_t cmd, void *args) +{ + switch (cmd) + { + case NIOCTL_GADDR: + /* get mac address */ + if (args) rt_memcpy(args, lpc17xx_emac_device.dev_addr, 6); + else return -RT_ERROR; + break; + + default : + break; + } + + return RT_EOK; +} + +/* EtherNet Device Interface */ +/* transmit packet. */ +rt_err_t lpc17xx_emac_tx( rt_device_t dev, struct pbuf* p) +{ + rt_uint32_t Index, IndexNext; + struct pbuf *q; + rt_uint8_t *ptr; + + /* take a slot */ + rt_sem_take(&sem_slot, RT_WAITING_FOREVER); + + /* lock EMAC device */ + rt_sem_take(&sem_lock, RT_WAITING_FOREVER); + + /* get produce index */ + Index = LPC_EMAC->TxProduceIndex; + + /* calculate next index */ + IndexNext = LPC_EMAC->TxProduceIndex + 1; + if(IndexNext > LPC_EMAC->TxDescriptorNumber) + IndexNext = 0; + + /* copy data to tx buffer */ + q = p; + ptr = (rt_uint8_t*)TX_BUF(Index); + while (q) + { + memcpy(ptr, q->payload, q->len); + ptr += q->len; + q = q->next; + } + + TX_DESC_CTRL(Index) &= ~0x7ff; + TX_DESC_CTRL(Index) |= (p->tot_len - 1) & 0x7ff; + + /* change index to the next */ + LPC_EMAC->TxProduceIndex = IndexNext; + + /* unlock EMAC device */ + rt_sem_release(&sem_lock); + + return RT_EOK; +} + +/* reception packet. */ +struct pbuf *lpc17xx_emac_rx(rt_device_t dev) +{ + struct pbuf* p; + rt_uint32_t size; + rt_uint32_t Index; + + /* init p pointer */ + p = RT_NULL; + + /* lock EMAC device */ + rt_sem_take(&sem_lock, RT_WAITING_FOREVER); + + Index = LPC_EMAC->RxConsumeIndex; + if(Index != LPC_EMAC->RxProduceIndex) + { + size = (RX_STAT_INFO(Index) & 0x7ff)+1; + if (size > ETH_FRAG_SIZE) size = ETH_FRAG_SIZE; + + /* allocate buffer */ + p = pbuf_alloc(PBUF_LINK, size, PBUF_RAM); + if (p != RT_NULL) + { + struct pbuf* q; + rt_uint8_t *ptr; + + ptr = (rt_uint8_t*)RX_BUF(Index); + for (q = p; q != RT_NULL; q= q->next) + { + memcpy(q->payload, ptr, q->len); + ptr += q->len; + } + } + + /* move Index to the next */ + if(++Index > LPC_EMAC->RxDescriptorNumber) + Index = 0; + + /* set consume index */ + LPC_EMAC->RxConsumeIndex = Index; + } + else + { + /* Enable RxDone interrupt */ + LPC_EMAC->IntEnable = INT_RX_DONE | INT_TX_DONE; + } + + /* unlock EMAC device */ + rt_sem_release(&sem_lock); + + return p; +} + +void lpc17xx_emac_hw_init(void) +{ + rt_sem_init(&sem_slot, "tx_slot", NUM_TX_FRAG, RT_IPC_FLAG_FIFO); + rt_sem_init(&sem_lock, "eth_lock", 1, RT_IPC_FLAG_FIFO); + + /* set autonegotiation mode */ + lpc17xx_emac_device.phy_mode = EMAC_PHY_AUTO; + + // OUI 00-60-37 NXP Semiconductors + lpc17xx_emac_device.dev_addr[0] = 0x00; + lpc17xx_emac_device.dev_addr[1] = 0x60; + lpc17xx_emac_device.dev_addr[2] = 0x37; + /* set mac address: (only for test) */ + lpc17xx_emac_device.dev_addr[3] = 0xA2; + lpc17xx_emac_device.dev_addr[4] = 0x45; + lpc17xx_emac_device.dev_addr[5] = 0x5E; + + lpc17xx_emac_device.parent.parent.init = lpc17xx_emac_init; + lpc17xx_emac_device.parent.parent.open = lpc17xx_emac_open; + lpc17xx_emac_device.parent.parent.close = lpc17xx_emac_close; + lpc17xx_emac_device.parent.parent.read = lpc17xx_emac_read; + lpc17xx_emac_device.parent.parent.write = lpc17xx_emac_write; + lpc17xx_emac_device.parent.parent.control = lpc17xx_emac_control; + lpc17xx_emac_device.parent.parent.user_data = RT_NULL; + + lpc17xx_emac_device.parent.eth_rx = lpc17xx_emac_rx; + lpc17xx_emac_device.parent.eth_tx = lpc17xx_emac_tx; + + eth_device_init(&(lpc17xx_emac_device.parent), "e0"); +} + +#ifdef RT_USING_FINSH +#include +void emac_dump() +{ +// rt_kprintf("IntCount : %d\n", intcount); + rt_kprintf("Status : %08x\n", LPC_EMAC->Status); + rt_kprintf("Command : %08x\n", LPC_EMAC->Command); + rt_kprintf("RxStatus : %08x\n", LPC_EMAC->RxStatus); + rt_kprintf("TxStatus : %08x\n", LPC_EMAC->TxStatus); + rt_kprintf("IntEnable: %08x\n", LPC_EMAC->IntEnable); + rt_kprintf("IntStatus: %08x\n", LPC_EMAC->IntStatus); +} +FINSH_FUNCTION_EXPORT(emac_dump, dump emac register); +#endif + diff --git a/bsp/lpc178x/drivers/emac.h b/bsp/lpc178x/drivers/emac.h new file mode 100644 index 0000000000..f7199ddfed --- /dev/null +++ b/bsp/lpc178x/drivers/emac.h @@ -0,0 +1,295 @@ +#ifndef __LPC17XX_EMAC_H +#define __LPC17XX_EMAC_H + +#include "LPC177x_8x.h" + +/* EMAC Memory Buffer configuration for 16K Ethernet RAM. */ +#define NUM_RX_FRAG 4 /* Num.of RX Fragments 4*1536= 6.0kB */ +#define NUM_TX_FRAG 3 /* Num.of TX Fragments 3*1536= 4.6kB */ +#define ETH_FRAG_SIZE 1536 /* Packet Fragment size 1536 Bytes */ + +#define ETH_MAX_FLEN 1536 /* Max. Ethernet Frame Size */ + +/* EMAC variables located in 16K Ethernet SRAM */ +#define RX_DESC_BASE 0x20000000 +#define RX_STAT_BASE (RX_DESC_BASE + NUM_RX_FRAG*8) +#define TX_DESC_BASE (RX_STAT_BASE + NUM_RX_FRAG*8) +#define TX_STAT_BASE (TX_DESC_BASE + NUM_TX_FRAG*8) +#define RX_BUF_BASE (TX_STAT_BASE + NUM_TX_FRAG*4) +#define TX_BUF_BASE (RX_BUF_BASE + NUM_RX_FRAG*ETH_FRAG_SIZE) + +/* RX and TX descriptor and status definitions. */ +#define RX_DESC_PACKET(i) (*(unsigned int *)(RX_DESC_BASE + 8*i)) +#define RX_DESC_CTRL(i) (*(unsigned int *)(RX_DESC_BASE+4 + 8*i)) +#define RX_STAT_INFO(i) (*(unsigned int *)(RX_STAT_BASE + 8*i)) +#define RX_STAT_HASHCRC(i) (*(unsigned int *)(RX_STAT_BASE+4 + 8*i)) +#define TX_DESC_PACKET(i) (*(unsigned int *)(TX_DESC_BASE + 8*i)) +#define TX_DESC_CTRL(i) (*(unsigned int *)(TX_DESC_BASE+4 + 8*i)) +#define TX_STAT_INFO(i) (*(unsigned int *)(TX_STAT_BASE + 4*i)) +#define RX_BUF(i) (RX_BUF_BASE + ETH_FRAG_SIZE*i) +#define TX_BUF(i) (TX_BUF_BASE + ETH_FRAG_SIZE*i) + +/* MAC Configuration Register 1 */ +#define MAC1_REC_EN 0x00000001 /* Receive Enable */ +#define MAC1_PASS_ALL 0x00000002 /* Pass All Receive Frames */ +#define MAC1_RX_FLOWC 0x00000004 /* RX Flow Control */ +#define MAC1_TX_FLOWC 0x00000008 /* TX Flow Control */ +#define MAC1_LOOPB 0x00000010 /* Loop Back Mode */ +#define MAC1_RES_TX 0x00000100 /* Reset TX Logic */ +#define MAC1_RES_MCS_TX 0x00000200 /* Reset MAC TX Control Sublayer */ +#define MAC1_RES_RX 0x00000400 /* Reset RX Logic */ +#define MAC1_RES_MCS_RX 0x00000800 /* Reset MAC RX Control Sublayer */ +#define MAC1_SIM_RES 0x00004000 /* Simulation Reset */ +#define MAC1_SOFT_RES 0x00008000 /* Soft Reset MAC */ + +/* MAC Configuration Register 2 */ +#define MAC2_FULL_DUP 0x00000001 /* Full Duplex Mode */ +#define MAC2_FRM_LEN_CHK 0x00000002 /* Frame Length Checking */ +#define MAC2_HUGE_FRM_EN 0x00000004 /* Huge Frame Enable */ +#define MAC2_DLY_CRC 0x00000008 /* Delayed CRC Mode */ +#define MAC2_CRC_EN 0x00000010 /* Append CRC to every Frame */ +#define MAC2_PAD_EN 0x00000020 /* Pad all Short Frames */ +#define MAC2_VLAN_PAD_EN 0x00000040 /* VLAN Pad Enable */ +#define MAC2_ADET_PAD_EN 0x00000080 /* Auto Detect Pad Enable */ +#define MAC2_PPREAM_ENF 0x00000100 /* Pure Preamble Enforcement */ +#define MAC2_LPREAM_ENF 0x00000200 /* Long Preamble Enforcement */ +#define MAC2_NO_BACKOFF 0x00001000 /* No Backoff Algorithm */ +#define MAC2_BACK_PRESSURE 0x00002000 /* Backoff Presurre / No Backoff */ +#define MAC2_EXCESS_DEF 0x00004000 /* Excess Defer */ + +/* Back-to-Back Inter-Packet-Gap Register */ +#define IPGT_FULL_DUP 0x00000015 /* Recommended value for Full Duplex */ +#define IPGT_HALF_DUP 0x00000012 /* Recommended value for Half Duplex */ + +/* Non Back-to-Back Inter-Packet-Gap Register */ +#define IPGR_DEF 0x00000012 /* Recommended value */ + +/* Collision Window/Retry Register */ +#define CLRT_DEF 0x0000370F /* Default value */ + +/* PHY Support Register */ +#define SUPP_SPEED 0x00000100 /* Reduced MII Logic Current Speed */ +#define SUPP_RES_RMII 0x00000800 /* Reset Reduced MII Logic */ + +/* Test Register */ +#define TEST_SHCUT_PQUANTA 0x00000001 /* Shortcut Pause Quanta */ +#define TEST_TST_PAUSE 0x00000002 /* Test Pause */ +#define TEST_TST_BACKP 0x00000004 /* Test Back Pressure */ + +/* MII Management Configuration Register */ +#define MCFG_SCAN_INC 0x00000001 /* Scan Increment PHY Address */ +#define MCFG_SUPP_PREAM 0x00000002 /* Suppress Preamble */ +#define MCFG_CLK_SEL 0x0000001C /* Clock Select Mask */ +#define MCFG_RES_MII 0x00008000 /* Reset MII Management Hardware */ + +#define MCFG_CLK_DIV4 0x00000000 /* MDC = hclk / 4 */ +#define MCFG_CLK_DIV6 0x00000008 /* MDC = hclk / 6 */ +#define MCFG_CLK_DIV8 0x0000000C /* MDC = hclk / 8 */ +#define MCFG_CLK_DIV10 0x00000010 /* MDC = hclk / 10 */ +#define MCFG_CLK_DIV14 0x00000014 /* MDC = hclk / 14 */ +#define MCFG_CLK_DIV20 0x00000018 /* MDC = hclk / 20 */ +#define MCFG_CLK_DIV28 0x0000001C /* MDC = hclk / 28 */ + + +/* MII Management Command Register */ +#define MCMD_READ 0x00000001 /* MII Read */ +#define MCMD_SCAN 0x00000002 /* MII Scan continuously */ + +#define MII_WR_TOUT 0x00050000 /* MII Write timeout count */ +#define MII_RD_TOUT 0x00050000 /* MII Read timeout count */ + +/* MII Management Address Register */ +#define MADR_REG_ADR 0x0000001F /* MII Register Address Mask */ +#define MADR_PHY_ADR 0x00001F00 /* PHY Address Mask */ + +/* MII Management Indicators Register */ +#define MIND_BUSY 0x00000001 /* MII is Busy */ +#define MIND_SCAN 0x00000002 /* MII Scanning in Progress */ +#define MIND_NOT_VAL 0x00000004 /* MII Read Data not valid */ +#define MIND_MII_LINK_FAIL 0x00000008 /* MII Link Failed */ + +/* Command Register */ +#define CR_RX_EN 0x00000001 /* Enable Receive */ +#define CR_TX_EN 0x00000002 /* Enable Transmit */ +#define CR_REG_RES 0x00000008 /* Reset Host Registers */ +#define CR_TX_RES 0x00000010 /* Reset Transmit Datapath */ +#define CR_RX_RES 0x00000020 /* Reset Receive Datapath */ +#define CR_PASS_RUNT_FRM 0x00000040 /* Pass Runt Frames */ +#define CR_PASS_RX_FILT 0x00000080 /* Pass RX Filter */ +#define CR_TX_FLOW_CTRL 0x00000100 /* TX Flow Control */ +#define CR_RMII 0x00000200 /* Reduced MII Interface */ +#define CR_FULL_DUP 0x00000400 /* Full Duplex */ + +/* Status Register */ +#define SR_RX_EN 0x00000001 /* Enable Receive */ +#define SR_TX_EN 0x00000002 /* Enable Transmit */ + +/* Transmit Status Vector 0 Register */ +#define TSV0_CRC_ERR 0x00000001 /* CRC error */ +#define TSV0_LEN_CHKERR 0x00000002 /* Length Check Error */ +#define TSV0_LEN_OUTRNG 0x00000004 /* Length Out of Range */ +#define TSV0_DONE 0x00000008 /* Tramsmission Completed */ +#define TSV0_MCAST 0x00000010 /* Multicast Destination */ +#define TSV0_BCAST 0x00000020 /* Broadcast Destination */ +#define TSV0_PKT_DEFER 0x00000040 /* Packet Deferred */ +#define TSV0_EXC_DEFER 0x00000080 /* Excessive Packet Deferral */ +#define TSV0_EXC_COLL 0x00000100 /* Excessive Collision */ +#define TSV0_LATE_COLL 0x00000200 /* Late Collision Occured */ +#define TSV0_GIANT 0x00000400 /* Giant Frame */ +#define TSV0_UNDERRUN 0x00000800 /* Buffer Underrun */ +#define TSV0_BYTES 0x0FFFF000 /* Total Bytes Transferred */ +#define TSV0_CTRL_FRAME 0x10000000 /* Control Frame */ +#define TSV0_PAUSE 0x20000000 /* Pause Frame */ +#define TSV0_BACK_PRESS 0x40000000 /* Backpressure Method Applied */ +#define TSV0_VLAN 0x80000000 /* VLAN Frame */ + +/* Transmit Status Vector 1 Register */ +#define TSV1_BYTE_CNT 0x0000FFFF /* Transmit Byte Count */ +#define TSV1_COLL_CNT 0x000F0000 /* Transmit Collision Count */ + +/* Receive Status Vector Register */ +#define RSV_BYTE_CNT 0x0000FFFF /* Receive Byte Count */ +#define RSV_PKT_IGNORED 0x00010000 /* Packet Previously Ignored */ +#define RSV_RXDV_SEEN 0x00020000 /* RXDV Event Previously Seen */ +#define RSV_CARR_SEEN 0x00040000 /* Carrier Event Previously Seen */ +#define RSV_REC_CODEV 0x00080000 /* Receive Code Violation */ +#define RSV_CRC_ERR 0x00100000 /* CRC Error */ +#define RSV_LEN_CHKERR 0x00200000 /* Length Check Error */ +#define RSV_LEN_OUTRNG 0x00400000 /* Length Out of Range */ +#define RSV_REC_OK 0x00800000 /* Frame Received OK */ +#define RSV_MCAST 0x01000000 /* Multicast Frame */ +#define RSV_BCAST 0x02000000 /* Broadcast Frame */ +#define RSV_DRIB_NIBB 0x04000000 /* Dribble Nibble */ +#define RSV_CTRL_FRAME 0x08000000 /* Control Frame */ +#define RSV_PAUSE 0x10000000 /* Pause Frame */ +#define RSV_UNSUPP_OPC 0x20000000 /* Unsupported Opcode */ +#define RSV_VLAN 0x40000000 /* VLAN Frame */ + +/* Flow Control Counter Register */ +#define FCC_MIRR_CNT 0x0000FFFF /* Mirror Counter */ +#define FCC_PAUSE_TIM 0xFFFF0000 /* Pause Timer */ + +/* Flow Control Status Register */ +#define FCS_MIRR_CNT 0x0000FFFF /* Mirror Counter Current */ + +/* Receive Filter Control Register */ +#define RFC_UCAST_EN 0x00000001 /* Accept Unicast Frames Enable */ +#define RFC_BCAST_EN 0x00000002 /* Accept Broadcast Frames Enable */ +#define RFC_MCAST_EN 0x00000004 /* Accept Multicast Frames Enable */ +#define RFC_UCAST_HASH_EN 0x00000008 /* Accept Unicast Hash Filter Frames */ +#define RFC_MCAST_HASH_EN 0x00000010 /* Accept Multicast Hash Filter Fram.*/ +#define RFC_PERFECT_EN 0x00000020 /* Accept Perfect Match Enable */ +#define RFC_MAGP_WOL_EN 0x00001000 /* Magic Packet Filter WoL Enable */ +#define RFC_PFILT_WOL_EN 0x00002000 /* Perfect Filter WoL Enable */ + +/* Receive Filter WoL Status/Clear Registers */ +#define WOL_UCAST 0x00000001 /* Unicast Frame caused WoL */ +#define WOL_BCAST 0x00000002 /* Broadcast Frame caused WoL */ +#define WOL_MCAST 0x00000004 /* Multicast Frame caused WoL */ +#define WOL_UCAST_HASH 0x00000008 /* Unicast Hash Filter Frame WoL */ +#define WOL_MCAST_HASH 0x00000010 /* Multicast Hash Filter Frame WoL */ +#define WOL_PERFECT 0x00000020 /* Perfect Filter WoL */ +#define WOL_RX_FILTER 0x00000080 /* RX Filter caused WoL */ +#define WOL_MAG_PACKET 0x00000100 /* Magic Packet Filter caused WoL */ + +/* Interrupt Status/Enable/Clear/Set Registers */ +#define INT_RX_OVERRUN 0x00000001 /* Overrun Error in RX Queue */ +#define INT_RX_ERR 0x00000002 /* Receive Error */ +#define INT_RX_FIN 0x00000004 /* RX Finished Process Descriptors */ +#define INT_RX_DONE 0x00000008 /* Receive Done */ +#define INT_TX_UNDERRUN 0x00000010 /* Transmit Underrun */ +#define INT_TX_ERR 0x00000020 /* Transmit Error */ +#define INT_TX_FIN 0x00000040 /* TX Finished Process Descriptors */ +#define INT_TX_DONE 0x00000080 /* Transmit Done */ +#define INT_SOFT_INT 0x00001000 /* Software Triggered Interrupt */ +#define INT_WAKEUP 0x00002000 /* Wakeup Event Interrupt */ + +/* Power Down Register */ +#define PD_POWER_DOWN 0x80000000 /* Power Down MAC */ + +/* RX Descriptor Control Word */ +#define RCTRL_SIZE 0x000007FF /* Buffer size mask */ +#define RCTRL_INT 0x80000000 /* Generate RxDone Interrupt */ + +/* RX Status Hash CRC Word */ +#define RHASH_SA 0x000001FF /* Hash CRC for Source Address */ +#define RHASH_DA 0x001FF000 /* Hash CRC for Destination Address */ + +/* RX Status Information Word */ +#define RINFO_SIZE 0x000007FF /* Data size in bytes */ +#define RINFO_CTRL_FRAME 0x00040000 /* Control Frame */ +#define RINFO_VLAN 0x00080000 /* VLAN Frame */ +#define RINFO_FAIL_FILT 0x00100000 /* RX Filter Failed */ +#define RINFO_MCAST 0x00200000 /* Multicast Frame */ +#define RINFO_BCAST 0x00400000 /* Broadcast Frame */ +#define RINFO_CRC_ERR 0x00800000 /* CRC Error in Frame */ +#define RINFO_SYM_ERR 0x01000000 /* Symbol Error from PHY */ +#define RINFO_LEN_ERR 0x02000000 /* Length Error */ +#define RINFO_RANGE_ERR 0x04000000 /* Range Error (exceeded max. size) */ +#define RINFO_ALIGN_ERR 0x08000000 /* Alignment Error */ +#define RINFO_OVERRUN 0x10000000 /* Receive overrun */ +#define RINFO_NO_DESCR 0x20000000 /* No new Descriptor available */ +#define RINFO_LAST_FLAG 0x40000000 /* Last Fragment in Frame */ +#define RINFO_ERR 0x80000000 /* Error Occured (OR of all errors) */ + +#define RINFO_ERR_MASK (RINFO_FAIL_FILT | RINFO_CRC_ERR | RINFO_SYM_ERR | \ + RINFO_LEN_ERR | RINFO_ALIGN_ERR | RINFO_OVERRUN) + +/* TX Descriptor Control Word */ +#define TCTRL_SIZE 0x000007FF /* Size of data buffer in bytes */ +#define TCTRL_OVERRIDE 0x04000000 /* Override Default MAC Registers */ +#define TCTRL_HUGE 0x08000000 /* Enable Huge Frame */ +#define TCTRL_PAD 0x10000000 /* Pad short Frames to 64 bytes */ +#define TCTRL_CRC 0x20000000 /* Append a hardware CRC to Frame */ +#define TCTRL_LAST 0x40000000 /* Last Descriptor for TX Frame */ +#define TCTRL_INT 0x80000000 /* Generate TxDone Interrupt */ + +/* TX Status Information Word */ +#define TINFO_COL_CNT 0x01E00000 /* Collision Count */ +#define TINFO_DEFER 0x02000000 /* Packet Deferred (not an error) */ +#define TINFO_EXCESS_DEF 0x04000000 /* Excessive Deferral */ +#define TINFO_EXCESS_COL 0x08000000 /* Excessive Collision */ +#define TINFO_LATE_COL 0x10000000 /* Late Collision Occured */ +#define TINFO_UNDERRUN 0x20000000 /* Transmit Underrun */ +#define TINFO_NO_DESCR 0x40000000 /* No new Descriptor available */ +#define TINFO_ERR 0x80000000 /* Error Occured (OR of all errors) */ + +/* ENET Device Revision ID */ +#define OLD_EMAC_MODULE_ID 0x39022000 /* Rev. ID for first rev '-' */ + +/* DP83848C PHY Registers */ +#define PHY_REG_BMCR 0x00 /* Basic Mode Control Register */ +#define PHY_REG_BMSR 0x01 /* Basic Mode Status Register */ +#define PHY_REG_IDR1 0x02 /* PHY Identifier 1 */ +#define PHY_REG_IDR2 0x03 /* PHY Identifier 2 */ +#define PHY_REG_ANAR 0x04 /* Auto-Negotiation Advertisement */ +#define PHY_REG_ANLPAR 0x05 /* Auto-Neg. Link Partner Abitily */ +#define PHY_REG_ANER 0x06 /* Auto-Neg. Expansion Register */ +#define PHY_REG_ANNPTR 0x07 /* Auto-Neg. Next Page TX */ + +/* PHY Extended Registers */ +#define PHY_REG_STS 0x10 /* Status Register */ +#define PHY_REG_MICR 0x11 /* MII Interrupt Control Register */ +#define PHY_REG_MISR 0x12 /* MII Interrupt Status Register */ +#define PHY_REG_FCSCR 0x14 /* False Carrier Sense Counter */ +#define PHY_REG_RECR 0x15 /* Receive Error Counter */ +#define PHY_REG_PCSR 0x16 /* PCS Sublayer Config. and Status */ +#define PHY_REG_RBR 0x17 /* RMII and Bypass Register */ +#define PHY_REG_LEDCR 0x18 /* LED Direct Control Register */ +#define PHY_REG_PHYCR 0x19 /* PHY Control Register */ +#define PHY_REG_10BTSCR 0x1A /* 10Base-T Status/Control Register */ +#define PHY_REG_CDCTRL1 0x1B /* CD Test Control and BIST Extens. */ +#define PHY_REG_EDCR 0x1D /* Energy Detect Control Register */ + +#define PHY_FULLD_100M 0x2100 /* Full Duplex 100Mbit */ +#define PHY_HALFD_100M 0x2000 /* Half Duplex 100Mbit */ +#define PHY_FULLD_10M 0x0100 /* Full Duplex 10Mbit */ +#define PHY_HALFD_10M 0x0000 /* Half Duplex 10MBit */ +#define PHY_AUTO_NEG 0x3000 /* Select Auto Negotiation */ + +#define DP83848C_DEF_ADR 0x0F00 /* Default PHY device address */ +#define DP83848C_ID 0x20005C90 /* PHY Identifier */ + +void lpc17xx_emac_hw_init(void); + +#endif -- GitLab