diff options
Diffstat (limited to 'drivers/qe/uec.c')
| -rw-r--r-- | drivers/qe/uec.c | 1266 |
1 files changed, 1266 insertions, 0 deletions
diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c new file mode 100644 index 0000000..f640c81 --- /dev/null +++ b/drivers/qe/uec.c @@ -0,0 +1,1266 @@ +/* + * Copyright (C) 2006 Freescale Semiconductor, Inc. + * + * Dave Liu <daveliu@freescale.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include "common.h" +#include "net.h" +#include "malloc.h" +#include "asm/errno.h" +#include "asm/io.h" +#include "asm/immap_qe.h" +#include "qe.h" +#include "uccf.h" +#include "uec.h" +#include "uec_phy.h" + +#if defined(CONFIG_QE) + +#ifdef CONFIG_UEC_ETH1 +static uec_info_t eth1_uec_info = { + .uf_info = { + .ucc_num = CFG_UEC1_UCC_NUM, + .rx_clock = CFG_UEC1_RX_CLK, + .tx_clock = CFG_UEC1_TX_CLK, + .eth_type = CFG_UEC1_ETH_TYPE, + }, + .num_threads_tx = UEC_NUM_OF_THREADS_4, + .num_threads_rx = UEC_NUM_OF_THREADS_4, + .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, + .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, + .tx_bd_ring_len = 16, + .rx_bd_ring_len = 16, + .phy_address = CFG_UEC1_PHY_ADDR, + .enet_interface = CFG_UEC1_INTERFACE_MODE, +}; +#endif +#ifdef CONFIG_UEC_ETH2 +static uec_info_t eth2_uec_info = { + .uf_info = { + .ucc_num = CFG_UEC2_UCC_NUM, + .rx_clock = CFG_UEC2_RX_CLK, + .tx_clock = CFG_UEC2_TX_CLK, + .eth_type = CFG_UEC2_ETH_TYPE, + }, + .num_threads_tx = UEC_NUM_OF_THREADS_4, + .num_threads_rx = UEC_NUM_OF_THREADS_4, + .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, + .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2, + .tx_bd_ring_len = 16, + .rx_bd_ring_len = 16, + .phy_address = CFG_UEC2_PHY_ADDR, + .enet_interface = CFG_UEC2_INTERFACE_MODE, +}; +#endif + +static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode) +{ + uec_t *uec_regs; + u32 maccfg1; + + if (!uec) { + printf("%s: uec not initial\n", __FUNCTION__); + return -EINVAL; + } + uec_regs = uec->uec_regs; + + maccfg1 = in_be32(&uec_regs->maccfg1); + + if (mode & COMM_DIR_TX) { + maccfg1 |= MACCFG1_ENABLE_TX; + out_be32(&uec_regs->maccfg1, maccfg1); + uec->mac_tx_enabled = 1; + } + + if (mode & COMM_DIR_RX) { + maccfg1 |= MACCFG1_ENABLE_RX; + out_be32(&uec_regs->maccfg1, maccfg1); + uec->mac_rx_enabled = 1; + } + + return 0; +} + +static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode) +{ + uec_t *uec_regs; + u32 maccfg1; + + if (!uec) { + printf("%s: uec not initial\n", __FUNCTION__); + return -EINVAL; + } + uec_regs = uec->uec_regs; + + maccfg1 = in_be32(&uec_regs->maccfg1); + + if (mode & COMM_DIR_TX) { + maccfg1 &= ~MACCFG1_ENABLE_TX; + out_be32(&uec_regs->maccfg1, maccfg1); + uec->mac_tx_enabled = 0; + } + + if (mode & COMM_DIR_RX) { + maccfg1 &= ~MACCFG1_ENABLE_RX; + out_be32(&uec_regs->maccfg1, maccfg1); + uec->mac_rx_enabled = 0; + } + + return 0; +} + +static int uec_graceful_stop_tx(uec_private_t *uec) +{ + ucc_fast_t *uf_regs; + u32 cecr_subblock; + u32 ucce; + + if (!uec || !uec->uccf) { + printf("%s: No handle passed.\n", __FUNCTION__); + return -EINVAL; + } + + uf_regs = uec->uccf->uf_regs; + + /* Clear the grace stop event */ + out_be32(&uf_regs->ucce, UCCE_GRA); + + /* Issue host command */ + cecr_subblock = + ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num); + qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock, + (u8)QE_CR_PROTOCOL_ETHERNET, 0); + + /* Wait for command to complete */ + do { + ucce = in_be32(&uf_regs->ucce); + } while (! (ucce & UCCE_GRA)); + + uec->grace_stopped_tx = 1; + + return 0; +} + +static int uec_graceful_stop_rx(uec_private_t *uec) +{ + u32 cecr_subblock; + u8 ack; + + if (!uec) { + printf("%s: No handle passed.\n", __FUNCTION__); + return -EINVAL; + } + + if (!uec->p_rx_glbl_pram) { + printf("%s: No init rx global parameter\n", __FUNCTION__); + return -EINVAL; + } + + /* Clear acknowledge bit */ + ack = uec->p_rx_glbl_pram->rxgstpack; + ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX; + uec->p_rx_glbl_pram->rxgstpack = ack; + + /* Keep issuing cmd and checking ack bit until it is asserted */ + do { + /* Issue host command */ + cecr_subblock = + ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num); + qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock, + (u8)QE_CR_PROTOCOL_ETHERNET, 0); + ack = uec->p_rx_glbl_pram->rxgstpack; + } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX )); + + uec->grace_stopped_rx = 1; + + return 0; +} + +static int uec_restart_tx(uec_private_t *uec) +{ + u32 cecr_subblock; + + if (!uec || !uec->uec_info) { + printf("%s: No handle passed.\n", __FUNCTION__); + return -EINVAL; + } + + cecr_subblock = + ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num); + qe_issue_cmd(QE_RESTART_TX, cecr_subblock, + (u8)QE_CR_PROTOCOL_ETHERNET, 0); + + uec->grace_stopped_tx = 0; + + return 0; +} + +static int uec_restart_rx(uec_private_t *uec) +{ + u32 cecr_subblock; + + if (!uec || !uec->uec_info) { + printf("%s: No handle passed.\n", __FUNCTION__); + return -EINVAL; + } + + cecr_subblock = + ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num); + qe_issue_cmd(QE_RESTART_RX, cecr_subblock, + (u8)QE_CR_PROTOCOL_ETHERNET, 0); + + uec->grace_stopped_rx = 0; + + return 0; +} + +static int uec_open(uec_private_t *uec, comm_dir_e mode) +{ + ucc_fast_private_t *uccf; + + if (!uec || !uec->uccf) { + printf("%s: No handle passed.\n", __FUNCTION__); + return -EINVAL; + } + uccf = uec->uccf; + + /* check if the UCC number is in range. */ + if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) { + printf("%s: ucc_num out of range.\n", __FUNCTION__); + return -EINVAL; + } + + /* Enable MAC */ + uec_mac_enable(uec, mode); + + /* Enable UCC fast */ + ucc_fast_enable(uccf, mode); + + /* RISC microcode start */ + if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) { + uec_restart_tx(uec); + } + if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) { + uec_restart_rx(uec); + } + + return 0; +} + +static int uec_stop(uec_private_t *uec, comm_dir_e mode) +{ + ucc_fast_private_t *uccf; + + if (!uec || !uec->uccf) { + printf("%s: No handle passed.\n", __FUNCTION__); + return -EINVAL; + } + uccf = uec->uccf; + + /* check if the UCC number is in range. */ + if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) { + printf("%s: ucc_num out of range.\n", __FUNCTION__); + return -EINVAL; + } + /* Stop any transmissions */ + if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) { + uec_graceful_stop_tx(uec); + } + /* Stop any receptions */ + if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) { + uec_graceful_stop_rx(uec); + } + + /* Disable the UCC fast */ + ucc_fast_disable(uec->uccf, mode); + + /* Disable the MAC */ + uec_mac_disable(uec, mode); + + return 0; +} + +static int uec_set_mac_duplex(uec_private_t *uec, int duplex) +{ + uec_t *uec_regs; + u32 maccfg2; + + if (!uec) { + printf("%s: uec not initial\n", __FUNCTION__); + return -EINVAL; + } + uec_regs = uec->uec_regs; + + if (duplex == DUPLEX_HALF) { + maccfg2 = in_be32(&uec_regs->maccfg2); + maccfg2 &= ~MACCFG2_FDX; + out_be32(&uec_regs->maccfg2, maccfg2); + } + + if (duplex == DUPLEX_FULL) { + maccfg2 = in_be32(&uec_regs->maccfg2); + maccfg2 |= MACCFG2_FDX; + out_be32(&uec_regs->maccfg2, maccfg2); + } + + return 0; +} + +static int uec_set_mac_if_mode(uec_private_t *uec, enet_interface_e if_mode) +{ + enet_interface_e enet_if_mode; + uec_info_t *uec_info; + uec_t *uec_regs; + u32 upsmr; + u32 maccfg2; + + if (!uec) { + printf("%s: uec not initial\n", __FUNCTION__); + return -EINVAL; + } + + uec_info = uec->uec_info; + uec_regs = uec->uec_regs; + enet_if_mode = if_mode; + + maccfg2 = in_be32(&uec_regs->maccfg2); + maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK; + + upsmr = in_be32(&uec->uccf->uf_regs->upsmr); + upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM); + + switch (enet_if_mode) { + case ENET_100_MII: + case ENET_10_MII: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + break; + case ENET_1000_GMII: + maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE; + break; + case ENET_1000_TBI: + maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE; + upsmr |= UPSMR_TBIM; + break; + case ENET_1000_RTBI: + maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE; + upsmr |= (UPSMR_RPM | UPSMR_TBIM); + break; + case ENET_1000_RGMII: + maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE; + upsmr |= UPSMR_RPM; + break; + case ENET_100_RGMII: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + upsmr |= UPSMR_RPM; + break; + case ENET_10_RGMII: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + upsmr |= (UPSMR_RPM | UPSMR_R10M); + break; + case ENET_100_RMII: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + upsmr |= UPSMR_RMM; + break; + case ENET_10_RMII: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + upsmr |= (UPSMR_R10M | UPSMR_RMM); + break; + default: + return -EINVAL; + break; + } + out_be32(&uec_regs->maccfg2, maccfg2); + out_be32(&uec->uccf->uf_regs->upsmr, upsmr); + + return 0; +} + +static int init_mii_management_configuration(uec_t *uec_regs) +{ + uint timeout = 0x1000; + u32 miimcfg = 0; + + miimcfg = in_be32(&uec_regs->miimcfg); + miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE; + out_be32(&uec_regs->miimcfg, miimcfg); + + /* Wait until the bus is free */ + while ((in_be32(&uec_regs->miimcfg) & MIIMIND_BUSY) && timeout--); + if (timeout <= 0) { + printf("%s: The MII Bus is stuck!", __FUNCTION__); + return -ETIMEDOUT; + } + + return 0; +} + +static int init_phy(struct eth_device *dev) +{ + uec_private_t *uec; + uec_t *uec_regs; + struct uec_mii_info *mii_info; + struct phy_info *curphy; + int err; + + uec = (uec_private_t *)dev->priv; + uec_regs = uec->uec_regs; + + uec->oldlink = 0; + uec->oldspeed = 0; + uec->oldduplex = -1; + + mii_info = malloc(sizeof(*mii_info)); + if (!mii_info) { + printf("%s: Could not allocate mii_info", dev->name); + return -ENOMEM; + } + memset(mii_info, 0, sizeof(*mii_info)); + + mii_info->speed = SPEED_1000; + mii_info->duplex = DUPLEX_FULL; + mii_info->pause = 0; + mii_info->link = 1; + + mii_info->advertising = (ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_100baseT_Full | + ADVERTISED_1000baseT_Full); + mii_info->autoneg = 1; + mii_info->mii_id = uec->uec_info->phy_address; + mii_info->dev = dev; + + mii_info->mdio_read = &read_phy_reg; + mii_info->mdio_write = &write_phy_reg; + + uec->mii_info = mii_info; + + if (init_mii_management_configuration(uec_regs)) { + printf("%s: The MII Bus is stuck!", dev->name); + err = -1; + goto bus_fail; + } + + /* get info for this PHY */ + curphy = get_phy_info(uec->mii_info); + if (!curphy) { + printf("%s: No PHY found", dev->name); + err = -1; + goto no_phy; + } + + mii_info->phyinfo = curphy; + + /* Run the commands which initialize the PHY */ + if (curphy->init) { + err = curphy->init(uec->mii_info); + if (err) + goto phy_init_fail; + } + + return 0; + +phy_init_fail: +no_phy: +bus_fail: + free(mii_info); + return err; +} + +static void adjust_link(struct eth_device *dev) +{ + uec_private_t *uec = (uec_private_t *)dev->priv; + uec_t *uec_regs; + struct uec_mii_info *mii_info = uec->mii_info; + + extern void change_phy_interface_mode(struct eth_device *dev, + enet_interface_e mode); + uec_regs = uec->uec_regs; + + if (mii_info->link) { + /* Now we make sure that we can be in full duplex mode. + * If not, we operate in half-duplex mode. */ + if (mii_info->duplex != uec->oldduplex) { + if (!(mii_info->duplex)) { + uec_set_mac_duplex(uec, DUPLEX_HALF); + printf("%s: Half Duplex\n", dev->name); + } else { + uec_set_mac_duplex(uec, DUPLEX_FULL); + printf("%s: Full Duplex\n", dev->name); + } + uec->oldduplex = mii_info->duplex; + } + + if (mii_info->speed != uec->oldspeed) { + switch (mii_info->speed) { + case 1000: + break; + case 100: + printf ("switching to rgmii 100\n"); + /* change phy to rgmii 100 */ + change_phy_interface_mode(dev, + ENET_100_RGMII); + /* change the MAC interface mode */ + uec_set_mac_if_mode(uec,ENET_100_RGMII); + break; + case 10: + printf ("switching to rgmii 10\n"); + /* change phy to rgmii 10 */ + change_phy_interface_mode(dev, + ENET_10_RGMII); + /* change the MAC interface mode */ + uec_set_mac_if_mode(uec,ENET_10_RGMII); + break; + default: + printf("%s: Ack,Speed(%d)is illegal\n", + dev->name, mii_info->speed); + break; + } + + printf("%s: Speed %dBT\n", dev->name, mii_info->speed); + uec->oldspeed = mii_info->speed; + } + + if (!uec->oldlink) { + printf("%s: Link is up\n", dev->name); + uec->oldlink = 1; + } + + } else { /* if (mii_info->link) */ + if (uec->oldlink) { + printf("%s: Link is down\n", dev->name); + uec->oldlink = 0; + uec->oldspeed = 0; + uec->oldduplex = -1; + } + } +} + +static void phy_change(struct eth_device *dev) +{ + uec_private_t *uec = (uec_private_t *)dev->priv; + uec_t *uec_regs; + int result = 0; + + uec_regs = uec->uec_regs; + + /* Delay 5s to give the PHY a chance to change the register state */ + udelay(5000000); + + /* Update the link, speed, duplex */ + result = uec->mii_info->phyinfo->read_status(uec->mii_info); + + /* Adjust the interface according to speed */ + if ((0 == result) || (uec->mii_info->link == 0)) { + adjust_link(dev); + } +} + +static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr) +{ + uec_t *uec_regs; + u32 mac_addr1; + u32 mac_addr2; + + if (!uec) { + printf("%s: uec not initial\n", __FUNCTION__); + return -EINVAL; + } + + uec_regs = uec->uec_regs; + + /* if a station address of 0x12345678ABCD, perform a write to + MACSTNADDR1 of 0xCDAB7856, + MACSTNADDR2 of 0x34120000 */ + + mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \ + (mac_addr[3] << 8) | (mac_addr[2]); + out_be32(&uec_regs->macstnaddr1, mac_addr1); + + mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000; + out_be32(&uec_regs->macstnaddr2, mac_addr2); + + return 0; +} + +static int uec_convert_threads_num(uec_num_of_threads_e threads_num, + int *threads_num_ret) +{ + int num_threads_numerica; + + switch (threads_num) { + case UEC_NUM_OF_THREADS_1: + num_threads_numerica = 1; + break; + case UEC_NUM_OF_THREADS_2: + num_threads_numerica = 2; + break; + case UEC_NUM_OF_THREADS_4: + num_threads_numerica = 4; + break; + case UEC_NUM_OF_THREADS_6: + num_threads_numerica = 6; + break; + case UEC_NUM_OF_THREADS_8: + num_threads_numerica = 8; + break; + default: + printf("%s: Bad number of threads value.", + __FUNCTION__); + return -EINVAL; + } + + *threads_num_ret = num_threads_numerica; + + return 0; +} + +static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx) +{ + uec_info_t *uec_info; + u32 end_bd; + u8 bmrx = 0; + int i; + + uec_info = uec->uec_info; + + /* Alloc global Tx parameter RAM page */ + uec->tx_glbl_pram_offset = qe_muram_alloc( + sizeof(uec_tx_global_pram_t), + UEC_TX_GLOBAL_PRAM_ALIGNMENT); + uec->p_tx_glbl_pram = (uec_tx_global_pram_t *) + qe_muram_addr(uec->tx_glbl_pram_offset); + + /* Zero the global Tx prameter RAM */ + memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t)); + + /* Init global Tx parameter RAM */ + + /* TEMODER, RMON statistics disable, one Tx queue */ + out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE); + + /* SQPTR */ + uec->send_q_mem_reg_offset = qe_muram_alloc( + sizeof(uec_send_queue_qd_t), + UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT); + uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *) + qe_muram_addr(uec->send_q_mem_reg_offset); + out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset); + + /* Setup the table with TxBDs ring */ + end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1) + * SIZEOFBD; + out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base, + (u32)(uec->p_tx_bd_ring)); + out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address, + end_bd); + + /* Scheduler Base Pointer, we have only one Tx queue, no need it */ + out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0); + + /* TxRMON Base Pointer, TxRMON disable, we don't need it */ + out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0); + + /* TSTATE, global snooping, big endian, the CSB bus selected */ + bmrx = BMR_INIT_VALUE; + out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT)); + + /* IPH_Offset */ + for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) { + out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0); + } + + /* VTAG table */ + for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) { + out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0); + } + + /* TQPTR */ + uec->thread_dat_tx_offset = qe_muram_alloc( + num_threads_tx * sizeof(uec_thread_data_tx_t) + + 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT); + + uec->p_thread_data_tx = (uec_thread_data_tx_t *) + qe_muram_addr(uec->thread_dat_tx_offset); + out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset); +} + +static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx) +{ + u8 bmrx = 0; + int i; + uec_82xx_address_filtering_pram_t *p_af_pram; + + /* Allocate global Rx parameter RAM page */ + uec->rx_glbl_pram_offset = qe_muram_alloc( + sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT); + uec->p_rx_glbl_pram = (uec_rx_global_pram_t *) + qe_muram_addr(uec->rx_glbl_pram_offset); + + /* Zero Global Rx parameter RAM */ + memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t)); + + /* Init global Rx parameter RAM */ + /* REMODER, Extended feature mode disable, VLAN disable, + LossLess flow control disable, Receive firmware statisic disable, + Extended address parsing mode disable, One Rx queues, + Dynamic maximum/minimum frame length disable, IP checksum check + disable, IP address alignment disable + */ + out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE); + + /* RQPTR */ + uec->thread_dat_rx_offset = qe_muram_alloc( + num_threads_rx * sizeof(uec_thread_data_rx_t), + UEC_THREAD_DATA_ALIGNMENT); + uec->p_thread_data_rx = (uec_thread_data_rx_t *) + qe_muram_addr(uec->thread_dat_rx_offset); + out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset); + + /* Type_or_Len */ + out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072); + + /* RxRMON base pointer, we don't need it */ + out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0); + + /* IntCoalescingPTR, we don't need it, no interrupt */ + out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0); + + /* RSTATE, global snooping, big endian, the CSB bus selected */ + bmrx = BMR_INIT_VALUE; + out_8(&uec->p_rx_glbl_pram->rstate, bmrx); + + /* MRBLR */ + out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN); + + /* RBDQPTR */ + uec->rx_bd_qs_tbl_offset = qe_muram_alloc( + sizeof(uec_rx_bd_queues_entry_t) + \ + sizeof(uec_rx_prefetched_bds_t), + UEC_RX_BD_QUEUES_ALIGNMENT); + uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *) + qe_muram_addr(uec->rx_bd_qs_tbl_offset); + + /* Zero it */ + memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \ + sizeof(uec_rx_prefetched_bds_t)); + out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset); + out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr, + (u32)uec->p_rx_bd_ring); + + /* MFLR */ + out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN); + /* MINFLR */ + out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN); + /* MAXD1 */ + out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN); + /* MAXD2 */ + out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN); + /* ECAM_PTR */ + out_be32(&uec->p_rx_glbl_pram->ecamptr, 0); + /* L2QT */ + out_be32(&uec->p_rx_glbl_pram->l2qt, 0); + /* L3QT */ + for (i = 0; i < 8; i++) { + out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0); + } + + /* VLAN_TYPE */ + out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100); + /* TCI */ + out_be16(&uec->p_rx_glbl_pram->vlantci, 0); + + /* Clear PQ2 style address filtering hash table */ + p_af_pram = (uec_82xx_address_filtering_pram_t *) \ + uec->p_rx_glbl_pram->addressfiltering; + + p_af_pram->iaddr_h = 0; + p_af_pram->iaddr_l = 0; + p_af_pram->gaddr_h = 0; + p_af_pram->gaddr_l = 0; +} + +static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec, + int thread_tx, int thread_rx) +{ + uec_init_cmd_pram_t *p_init_enet_param; + u32 init_enet_param_offset; + uec_info_t *uec_info; + int i; + int snum; + u32 init_enet_offset; + u32 entry_val; + u32 command; + u32 cecr_subblock; + + uec_info = uec->uec_info; + + /* Allocate init enet command parameter */ + uec->init_enet_param_offset = qe_muram_alloc( + sizeof(uec_init_cmd_pram_t), 4); + init_enet_param_offset = uec->init_enet_param_offset; + uec->p_init_enet_param = (uec_init_cmd_pram_t *) + qe_muram_addr(uec->init_enet_param_offset); + + /* Zero init enet command struct */ + memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t)); + + /* Init the command struct */ + p_init_enet_param = uec->p_init_enet_param; + p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0; + p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1; + p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2; + p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3; + p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4; + p_init_enet_param->largestexternallookupkeysize = 0; + + p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx) + << ENET_INIT_PARAM_RGF_SHIFT; + p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx) + << ENET_INIT_PARAM_TGF_SHIFT; + + /* Init Rx global parameter pointer */ + p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset | + (u32)uec_info->riscRx; + + /* Init Rx threads */ + for (i = 0; i < (thread_rx + 1); i++) { + if ((snum = qe_get_snum()) < 0) { + printf("%s can not get snum\n", __FUNCTION__); + return -ENOMEM; + } + + if (i==0) { + init_enet_offset = 0; + } else { + init_enet_offset = qe_muram_alloc( + sizeof(uec_thread_rx_pram_t), + UEC_THREAD_RX_PRAM_ALIGNMENT); + } + + entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) | + init_enet_offset | (u32)uec_info->riscRx; + p_init_enet_param->rxthread[i] = entry_val; + } + + /* Init Tx global parameter pointer */ + p_init_enet_param->txglobal = uec->tx_glbl_pram_offset | + (u32)uec_info->riscTx; + + /* Init Tx threads */ + for (i = 0; i < thread_tx; i++) { + if ((snum = qe_get_snum()) < 0) { + printf("%s can not get snum\n", __FUNCTION__); + return -ENOMEM; + } + + init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t), + UEC_THREAD_TX_PRAM_ALIGNMENT); + + entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) | + init_enet_offset | (u32)uec_info->riscTx; + p_init_enet_param->txthread[i] = entry_val; + } + + __asm__ __volatile__("sync"); + + /* Issue QE command */ + command = QE_INIT_TX_RX; + cecr_subblock = ucc_fast_get_qe_cr_subblock( + uec->uec_info->uf_info.ucc_num); + qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET, + init_enet_param_offset); + + return 0; +} + +static int uec_startup(uec_private_t *uec) +{ + uec_info_t *uec_info; + ucc_fast_info_t *uf_info; + ucc_fast_private_t *uccf; + ucc_fast_t *uf_regs; + uec_t *uec_regs; + int num_threads_tx; + int num_threads_rx; + u32 utbipar; + enet_interface_e enet_interface; + u32 length; + u32 align; + qe_bd_t *bd; + u8 *buf; + int i; + + if (!uec || !uec->uec_info) { + printf("%s: uec or uec_info not initial\n", __FUNCTION__); + return -EINVAL; + } + + uec_info = uec->uec_info; + uf_info = &(uec_info->uf_info); + + /* Check if Rx BD ring len is illegal */ + if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \ + (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) { + printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n", + __FUNCTION__); + return -EINVAL; + } + + /* Check if Tx BD ring len is illegal */ + if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) { + printf("%s: Tx BD ring length must not be smaller than 2.\n", + __FUNCTION__); + return -EINVAL; + } + + /* Check if MRBLR is illegal */ + if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN % UEC_MRBLR_ALIGNMENT)) { + printf("%s: max rx buffer length must be mutliple of 128.\n", + __FUNCTION__); + return -EINVAL; + } + + /* Both Rx and Tx are stopped */ + uec->grace_stopped_rx = 1; + uec->grace_stopped_tx = 1; + + /* Init UCC fast */ + if (ucc_fast_init(uf_info, &uccf)) { + printf("%s: failed to init ucc fast\n", __FUNCTION__); + return -ENOMEM; + } + + /* Save uccf */ + uec->uccf = uccf; + + /* Convert the Tx threads number */ + if (uec_convert_threads_num(uec_info->num_threads_tx, + &num_threads_tx)) { + return -EINVAL; + } + + /* Convert the Rx threads number */ + if (uec_convert_threads_num(uec_info->num_threads_rx, + &num_threads_rx)) { + return -EINVAL; + } + + uf_regs = uccf->uf_regs; + + /* UEC register is following UCC fast registers */ + uec_regs = (uec_t *)(&uf_regs->ucc_eth); + + /* Save the UEC register pointer to UEC private struct */ + uec->uec_regs = uec_regs; + + /* Init UPSMR, enable hardware statistics (UCC) */ + out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE); + + /* Init MACCFG1, flow control disable, disable Tx and Rx */ + out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE); + + /* Init MACCFG2, length check, MAC PAD and CRC enable */ + out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE); + + /* Setup MAC interface mode */ + uec_set_mac_if_mode(uec, uec_info->enet_interface); + + /* Setup MII master clock source */ + qe_set_mii_clk_src(uec_info->uf_info.ucc_num); + + /* Setup UTBIPAR */ + utbipar = in_be32(&uec_regs->utbipar); + utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK; + enet_interface = uec->uec_info->enet_interface; + if (enet_interface == ENET_1000_TBI || + enet_interface == ENET_1000_RTBI) { + utbipar |= (uec_info->phy_address + uec_info->uf_info.ucc_num) + << UTBIPAR_PHY_ADDRESS_SHIFT; + } else { + utbipar |= (0x10 + uec_info->uf_info.ucc_num) + << UTBIPAR_PHY_ADDRESS_SHIFT; + } + + out_be32(&uec_regs->utbipar, utbipar); + + /* Allocate Tx BDs */ + length = ((uec_info->tx_bd_ring_len * SIZEOFBD) / + UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) * + UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; + if ((uec_info->tx_bd_ring_len * SIZEOFBD) % + UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) { + length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT; + } + + align = UEC_TX_BD_RING_ALIGNMENT; + uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align)); + if (uec->tx_bd_ring_offset != 0) { + uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align) + & ~(align - 1)); + } + + /* Zero all of Tx BDs */ + memset((void *)(uec->tx_bd_ring_offset), 0, length + align); + + /* Allocate Rx BDs */ + length = uec_info->rx_bd_ring_len * SIZEOFBD; + align = UEC_RX_BD_RING_ALIGNMENT; + uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align))); + if (uec->rx_bd_ring_offset != 0) { + uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align) + & ~(align - 1)); + } + + /* Zero all of Rx BDs */ + memset((void *)(uec->rx_bd_ring_offset), 0, length + align); + + /* Allocate Rx buffer */ + length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN; + align = UEC_RX_DATA_BUF_ALIGNMENT; + uec->rx_buf_offset = (u32)malloc(length + align); + if (uec->rx_buf_offset != 0) { + uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align) + & ~(align - 1)); + } + + /* Zero all of the Rx buffer */ + memset((void *)(uec->rx_buf_offset), 0, length + align); + + /* Init TxBD ring */ + bd = (qe_bd_t *)uec->p_tx_bd_ring; + uec->txBd = bd; + + for (i = 0; i < uec_info->tx_bd_ring_len; i++) { + BD_DATA_CLEAR(bd); + BD_STATUS_SET(bd, 0); + BD_LENGTH_SET(bd, 0); + bd ++; + } + BD_STATUS_SET((--bd), TxBD_WRAP); + + /* Init RxBD ring */ + bd = (qe_bd_t *)uec->p_rx_bd_ring; + uec->rxBd = bd; + buf = uec->p_rx_buf; + for (i = 0; i < uec_info->rx_bd_ring_len; i++) { + BD_DATA_SET(bd, buf); + BD_LENGTH_SET(bd, 0); + BD_STATUS_SET(bd, RxBD_EMPTY); + buf += MAX_RXBUF_LEN; + bd ++; + } + BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY); + + /* Init global Tx parameter RAM */ + uec_init_tx_parameter(uec, num_threads_tx); + + /* Init global Rx parameter RAM */ + uec_init_rx_parameter(uec, num_threads_rx); + + /* Init ethernet Tx and Rx parameter command */ + if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx, + num_threads_rx)) { + printf("%s issue init enet cmd failed\n", __FUNCTION__); + return -ENOMEM; + } + + return 0; +} + +static int uec_init(struct eth_device* dev, bd_t *bd) +{ + uec_private_t *uec; + int err; + + uec = (uec_private_t *)dev->priv; + + if (uec->the_first_run == 0) { + /* Set up the MAC address */ + if (dev->enetaddr[0] & 0x01) { + printf("%s: MacAddress is multcast address\n", + __FUNCTION__); + return -EINVAL; + } + uec_set_mac_address(uec, dev->enetaddr); + uec->the_first_run = 1; + } + + err = uec_open(uec, COMM_DIR_RX_AND_TX); + if (err) { + printf("%s: cannot enable UEC device\n", dev->name); + return err; + } + + return 0; +} + +static void uec_halt(struct eth_device* dev) +{ + uec_private_t *uec = (uec_private_t *)dev->priv; + uec_stop(uec, COMM_DIR_RX_AND_TX); +} + +static int uec_send(struct eth_device* dev, volatile void *buf, int len) +{ + uec_private_t *uec; + ucc_fast_private_t *uccf; + volatile qe_bd_t *bd; + volatile u16 status; + int i; + int result = 0; + + uec = (uec_private_t *)dev->priv; + uccf = uec->uccf; + bd = uec->txBd; + + /* Find an empty TxBD */ + for (i = 0; BD_STATUS(bd) & TxBD_READY; i++) { + if (i > 0x100000) { + printf("%s: tx buffer not ready\n", dev->name); + return result; + } + } + + /* Init TxBD */ + BD_DATA_SET(bd, buf); + BD_LENGTH_SET(bd, len); + status = BD_STATUS(bd); + status &= BD_WRAP; + status |= (TxBD_READY | TxBD_LAST); + BD_STATUS_SET(bd, status); + + /* Tell UCC to transmit the buffer */ + ucc_fast_transmit_on_demand(uccf); + + /* Wait for buffer to be transmitted */ + status = BD_STATUS(bd); + for (i = 0; status & TxBD_READY; i++) { + if (i > 0x100000) { + printf("%s: tx error\n", dev->name); + return result; + } + status = BD_STATUS(bd); + } + + /* Ok, the buffer be transimitted */ + BD_ADVANCE(bd, status, uec->p_tx_bd_ring); + uec->txBd = bd; + result = 1; + + return result; +} + +static int uec_recv(struct eth_device* dev) +{ + uec_private_t *uec = dev->priv; + volatile qe_bd_t *bd; + volatile u16 status; + u16 len; + u8 *data; + + bd = uec->rxBd; + status = BD_STATUS(bd); + + while (!(status & RxBD_EMPTY)) { + if (!(status & RxBD_ERROR)) { + data = BD_DATA(bd); + len = BD_LENGTH(bd); + NetReceive(data, len); + } else { + printf("%s: Rx error\n", dev->name); + } + status &= BD_CLEAN; + BD_LENGTH_SET(bd, 0); + BD_STATUS_SET(bd, status | RxBD_EMPTY); + BD_ADVANCE(bd, status, uec->p_rx_bd_ring); + status = BD_STATUS(bd); + } + uec->rxBd = bd; + + return 1; +} + +int uec_initialize(int index) +{ + struct eth_device *dev; + int i; + uec_private_t *uec; + uec_info_t *uec_info; + int err; + + dev = (struct eth_device *)malloc(sizeof(struct eth_device)); + if (!dev) + return 0; + memset(dev, 0, sizeof(struct eth_device)); + + /* Allocate the UEC private struct */ + uec = (uec_private_t *)malloc(sizeof(uec_private_t)); + if (!uec) { + return -ENOMEM; + } + memset(uec, 0, sizeof(uec_private_t)); + + /* Init UEC private struct, they come from board.h */ + if (index == 0) { +#ifdef CONFIG_UEC_ETH1 + uec_info = ð1_uec_info; +#endif + } else if (index == 1) { +#ifdef CONFIG_UEC_ETH2 + uec_info = ð2_uec_info; +#endif + } else { + printf("%s: index is illegal.\n", __FUNCTION__); + return -EINVAL; + } + + uec->uec_info = uec_info; + + sprintf(dev->name, "FSL UEC%d", index); + dev->iobase = 0; + dev->priv = (void *)uec; + dev->init = uec_init; + dev->halt = uec_halt; + dev->send = uec_send; + dev->recv = uec_recv; + + /* Clear the ethnet address */ + for (i = 0; i < 6; i++) + dev->enetaddr[i] = 0; + + eth_register(dev); + + err = uec_startup(uec); + if (err) { + printf("%s: Cannot configure net device, aborting.",dev->name); + return err; + } + + err = init_phy(dev); + if (err) { + printf("%s: Cannot initialize PHY, aborting.\n", dev->name); + return err; + } + + phy_change(dev); + + return 1; +} +#endif /* CONFIG_QE */ |