diff options
Diffstat (limited to 'drivers/net/qe/dm_qe_uec.c')
| -rw-r--r-- | drivers/net/qe/dm_qe_uec.c | 1167 |
1 files changed, 1167 insertions, 0 deletions
diff --git a/drivers/net/qe/dm_qe_uec.c b/drivers/net/qe/dm_qe_uec.c new file mode 100644 index 0000000000..3482b3ff17 --- /dev/null +++ b/drivers/net/qe/dm_qe_uec.c @@ -0,0 +1,1167 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * QE UEC ethernet controller driver + * + * based on drivers/qe/uec.c from NXP + * + * Copyright (C) 2020 Heiko Schocher <hs@denx.de> + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <memalign.h> +#include <miiphy.h> +#include <asm/io.h> + +#include "dm_qe_uec.h" + +#define QE_UEC_DRIVER_NAME "ucc_geth" + +/* Default UTBIPAR SMI address */ +#ifndef CONFIG_UTBIPAR_INIT_TBIPA +#define CONFIG_UTBIPAR_INIT_TBIPA 0x1F +#endif + +static int uec_mac_enable(struct uec_priv *uec, comm_dir_e mode) +{ + uec_t *uec_regs; + u32 maccfg1; + + 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(struct uec_priv *uec, comm_dir_e mode) +{ + uec_t *uec_regs; + u32 maccfg1; + + 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_restart_tx(struct uec_priv *uec) +{ + struct uec_inf *ui = uec->uec_info; + u32 cecr_subblock; + + cecr_subblock = ucc_fast_get_qe_cr_subblock(ui->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(struct uec_priv *uec) +{ + struct uec_inf *ui = uec->uec_info; + u32 cecr_subblock; + + cecr_subblock = ucc_fast_get_qe_cr_subblock(ui->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(struct uec_priv *uec, comm_dir_e mode) +{ + struct ucc_fast_priv *uccf; + + 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", __func__); + 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_set_mac_if_mode(struct uec_priv *uec) +{ + struct uec_inf *uec_info = uec->uec_info; + phy_interface_t enet_if_mode; + uec_t *uec_regs; + u32 upsmr; + u32 maccfg2; + + uec_regs = uec->uec_regs; + enet_if_mode = uec_info->enet_interface_type; + + 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 (uec_info->speed) { + case SPEED_10: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + switch (enet_if_mode) { + case PHY_INTERFACE_MODE_MII: + break; + case PHY_INTERFACE_MODE_RGMII: + upsmr |= (UPSMR_RPM | UPSMR_R10M); + break; + case PHY_INTERFACE_MODE_RMII: + upsmr |= (UPSMR_R10M | UPSMR_RMM); + break; + default: + return -EINVAL; + } + break; + case SPEED_100: + maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE; + switch (enet_if_mode) { + case PHY_INTERFACE_MODE_MII: + break; + case PHY_INTERFACE_MODE_RGMII: + upsmr |= UPSMR_RPM; + break; + case PHY_INTERFACE_MODE_RMII: + upsmr |= UPSMR_RMM; + break; + default: + return -EINVAL; + } + break; + case SPEED_1000: + maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE; + switch (enet_if_mode) { + case PHY_INTERFACE_MODE_GMII: + break; + case PHY_INTERFACE_MODE_TBI: + upsmr |= UPSMR_TBIM; + break; + case PHY_INTERFACE_MODE_RTBI: + upsmr |= (UPSMR_RPM | UPSMR_TBIM); + break; + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII: + upsmr |= UPSMR_RPM; + break; + case PHY_INTERFACE_MODE_SGMII: + upsmr |= UPSMR_SGMM; + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + out_be32(&uec_regs->maccfg2, maccfg2); + out_be32(&uec->uccf->uf_regs->upsmr, upsmr); + + return 0; +} + +static int qe_uec_start(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct uec_priv *uec = priv->uec; + struct phy_device *phydev = priv->phydev; + struct uec_inf *uec_info = uec->uec_info; + int err; + + if (!phydev) + return -ENODEV; + + /* Setup MAC interface mode */ + genphy_update_link(phydev); + genphy_parse_link(phydev); + uec_info->speed = phydev->speed; + uec_set_mac_if_mode(uec); + + err = uec_open(uec, COMM_DIR_RX_AND_TX); + if (err) { + printf("%s: cannot enable UEC device\n", dev->name); + return -EINVAL; + } + + return (phydev->link ? 0 : -EINVAL); +} + +static int qe_uec_send(struct udevice *dev, void *packet, int length) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct uec_priv *uec = priv->uec; + struct ucc_fast_priv *uccf = uec->uccf; + struct buffer_descriptor *bd; + u16 status; + int i; + int result = 0; + + uccf = uec->uccf; + bd = uec->tx_bd; + + /* Find an empty TxBD */ + for (i = 0; BD_STATUS(bd) & TX_BD_READY; i++) { + if (i > 0x100000) { + printf("%s: tx buffer not ready\n", dev->name); + return result; + } + } + + /* Init TxBD */ + BD_DATA_SET(bd, packet); + BD_LENGTH_SET(bd, length); + status = BD_STATUS(bd); + status &= BD_WRAP; + status |= (TX_BD_READY | TX_BD_LAST); + BD_STATUS_SET(bd, status); + + /* Tell UCC to transmit the buffer */ + ucc_fast_transmit_on_demand(uccf); + + /* Wait for buffer to be transmitted */ + for (i = 0; BD_STATUS(bd) & TX_BD_READY; i++) { + if (i > 0x100000) { + printf("%s: tx error\n", dev->name); + return result; + } + } + + /* Ok, the buffer be transimitted */ + BD_ADVANCE(bd, status, uec->p_tx_bd_ring); + uec->tx_bd = bd; + result = 1; + + return result; +} + +/* + * Receive frame: + * - wait for the next BD to get ready bit set + * - clean up the descriptor + * - move on and indicate to HW that the cleaned BD is available for Rx + */ +static int qe_uec_recv(struct udevice *dev, int flags, uchar **packetp) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct uec_priv *uec = priv->uec; + struct buffer_descriptor *bd; + u16 status; + u16 len = 0; + u8 *data; + + *packetp = memalign(ARCH_DMA_MINALIGN, MAX_RXBUF_LEN); + if (*packetp == 0) { + printf("%s: error allocating packetp\n", __func__); + return -ENOMEM; + } + + bd = uec->rx_bd; + status = BD_STATUS(bd); + + while (!(status & RX_BD_EMPTY)) { + if (!(status & RX_BD_ERROR)) { + data = BD_DATA(bd); + len = BD_LENGTH(bd); + memcpy(*packetp, (char *)data, len); + } else { + printf("%s: Rx error\n", dev->name); + } + status &= BD_CLEAN; + BD_LENGTH_SET(bd, 0); + BD_STATUS_SET(bd, status | RX_BD_EMPTY); + BD_ADVANCE(bd, status, uec->p_rx_bd_ring); + status = BD_STATUS(bd); + } + uec->rx_bd = bd; + + return len; +} + +static int uec_graceful_stop_tx(struct uec_priv *uec) +{ + ucc_fast_t *uf_regs; + u32 cecr_subblock; + u32 ucce; + + 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(struct uec_priv *uec) +{ + u32 cecr_subblock; + u8 ack; + + if (!uec->p_rx_glbl_pram) { + printf("%s: No init rx global parameter\n", __func__); + 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_stop(struct uec_priv *uec, comm_dir_e mode) +{ + /* 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", __func__); + 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 void qe_uec_stop(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct uec_priv *uec = priv->uec; + + uec_stop(uec, COMM_DIR_RX_AND_TX); +} + +static int qe_uec_set_hwaddr(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + struct uec_priv *uec = priv->uec; + uec_t *uec_regs = uec->uec_regs; + uchar *mac = pdata->enetaddr; + u32 mac_addr1; + u32 mac_addr2; + + /* + * if a station address of 0x12345678ABCD, perform a write to + * MACSTNADDR1 of 0xCDAB7856, + * MACSTNADDR2 of 0x34120000 + */ + + mac_addr1 = (mac[5] << 24) | (mac[4] << 16) | + (mac[3] << 8) | (mac[2]); + out_be32(&uec_regs->macstnaddr1, mac_addr1); + + mac_addr2 = ((mac[1] << 24) | (mac[0] << 16)) & 0xffff0000; + out_be32(&uec_regs->macstnaddr2, mac_addr2); + + return 0; +} + +static int qe_uec_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + if (packet) + free(packet); + + return 0; +} + +static const struct eth_ops qe_uec_eth_ops = { + .start = qe_uec_start, + .send = qe_uec_send, + .recv = qe_uec_recv, + .free_pkt = qe_uec_free_pkt, + .stop = qe_uec_stop, + .write_hwaddr = qe_uec_set_hwaddr, +}; + +static int uec_convert_threads_num(enum uec_num_of_threads 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.", + __func__); + return -EINVAL; + } + + *threads_num_ret = num_threads_numerica; + + return 0; +} + +static void uec_init_tx_parameter(struct uec_priv *uec, int num_threads_tx) +{ + struct uec_inf *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(struct uec_tx_global_pram), + UEC_TX_GLOBAL_PRAM_ALIGNMENT); + uec->p_tx_glbl_pram = (struct uec_tx_global_pram *) + qe_muram_addr(uec->tx_glbl_pram_offset); + + /* Zero the global Tx prameter RAM */ + memset(uec->p_tx_glbl_pram, 0, sizeof(struct uec_tx_global_pram)); + + /* 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(struct uec_send_queue_qd), + UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT); + uec->p_send_q_mem_reg = (struct uec_send_queue_mem_region *) + 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(struct uec_thread_data_tx) + + 32 * (num_threads_tx == 1), + UEC_THREAD_DATA_ALIGNMENT); + + uec->p_thread_data_tx = (struct uec_thread_data_tx *) + 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(struct uec_priv *uec, int num_threads_rx) +{ + u8 bmrx = 0; + int i; + struct uec_82xx_add_filtering_pram *p_af_pram; + + /* Allocate global Rx parameter RAM page */ + uec->rx_glbl_pram_offset = + qe_muram_alloc(sizeof(struct uec_rx_global_pram), + UEC_RX_GLOBAL_PRAM_ALIGNMENT); + uec->p_rx_glbl_pram = (struct uec_rx_global_pram *) + qe_muram_addr(uec->rx_glbl_pram_offset); + + /* Zero Global Rx parameter RAM */ + memset(uec->p_rx_glbl_pram, 0, sizeof(struct uec_rx_global_pram)); + + /* 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(struct uec_thread_data_rx), + UEC_THREAD_DATA_ALIGNMENT); + uec->p_thread_data_rx = (struct uec_thread_data_rx *) + 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(struct uec_rx_bd_queues_entry) + + sizeof(struct uec_rx_pref_bds), + UEC_RX_BD_QUEUES_ALIGNMENT); + uec->p_rx_bd_qs_tbl = (struct uec_rx_bd_queues_entry *) + qe_muram_addr(uec->rx_bd_qs_tbl_offset); + + /* Zero it */ + memset(uec->p_rx_bd_qs_tbl, 0, sizeof(struct uec_rx_bd_queues_entry) + + sizeof(struct uec_rx_pref_bds)); + 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 = (struct uec_82xx_add_filtering_pram *) + 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(struct uec_priv *uec, + int thread_tx, int thread_rx) +{ + struct uec_init_cmd_pram *p_init_enet_param; + u32 init_enet_param_offset; + struct uec_inf *uec_info; + struct ucc_fast_inf *uf_info; + int i; + int snum; + u32 off; + u32 entry_val; + u32 command; + u32 cecr_subblock; + + uec_info = uec->uec_info; + uf_info = &uec_info->uf_info; + + /* Allocate init enet command parameter */ + uec->init_enet_param_offset = + qe_muram_alloc(sizeof(struct uec_init_cmd_pram), 4); + init_enet_param_offset = uec->init_enet_param_offset; + uec->p_init_enet_param = (struct uec_init_cmd_pram *) + qe_muram_addr(uec->init_enet_param_offset); + + /* Zero init enet command struct */ + memset((void *)uec->p_init_enet_param, 0, + sizeof(struct uec_init_cmd_pram)); + + /* 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->risc_rx; + + /* Init Rx threads */ + for (i = 0; i < (thread_rx + 1); i++) { + snum = qe_get_snum(); + if (snum < 0) { + printf("%s can not get snum\n", __func__); + return -ENOMEM; + } + + if (i == 0) { + off = 0; + } else { + off = qe_muram_alloc(sizeof(struct uec_thread_rx_pram), + UEC_THREAD_RX_PRAM_ALIGNMENT); + } + + entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) | + off | (u32)uec_info->risc_rx; + 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->risc_tx; + + /* Init Tx threads */ + for (i = 0; i < thread_tx; i++) { + snum = qe_get_snum(); + if (snum < 0) { + printf("%s can not get snum\n", __func__); + return -ENOMEM; + } + + off = qe_muram_alloc(sizeof(struct uec_thread_tx_pram), + UEC_THREAD_TX_PRAM_ALIGNMENT); + + entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) | + off | (u32)uec_info->risc_tx; + 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(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(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct uec_priv *uec = priv->uec; + struct uec_inf *uec_info; + struct ucc_fast_inf *uf_info; + struct ucc_fast_priv *uccf; + ucc_fast_t *uf_regs; + uec_t *uec_regs; + int num_threads_tx; + int num_threads_rx; + u32 utbipar; + u32 length; + u32 align; + struct buffer_descriptor *bd; + u8 *buf; + int i; + + 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", + __func__); + 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", + __func__); + 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", + __func__); + 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", __func__); + 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 UTBIPAR */ + utbipar = in_be32(&uec_regs->utbipar); + utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK; + + /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC. + * This frees up the remaining SMI addresses for use. + */ + utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << 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 = (struct buffer_descriptor *)uec->p_tx_bd_ring; + uec->tx_bd = 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), TX_BD_WRAP); + + /* Init RxBD ring */ + bd = (struct buffer_descriptor *)uec->p_rx_bd_ring; + uec->rx_bd = 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, RX_BD_EMPTY); + buf += MAX_RXBUF_LEN; + bd++; + } + BD_STATUS_SET((--bd), RX_BD_WRAP | RX_BD_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", __func__); + return -ENOMEM; + } + return 0; +} + +/* Convert a string to a QE clock source enum + * + * This function takes a string, typically from a property in the device + * tree, and returns the corresponding "enum qe_clock" value. + */ +enum qe_clock qe_clock_source(const char *source) +{ + unsigned int i; + + if (strcasecmp(source, "none") == 0) + return QE_CLK_NONE; + + if (strncasecmp(source, "brg", 3) == 0) { + i = simple_strtoul(source + 3, NULL, 10); + if (i >= 1 && i <= 16) + return (QE_BRG1 - 1) + i; + else + return QE_CLK_DUMMY; + } + + if (strncasecmp(source, "clk", 3) == 0) { + i = simple_strtoul(source + 3, NULL, 10); + if (i >= 1 && i <= 24) + return (QE_CLK1 - 1) + i; + else + return QE_CLK_DUMMY; + } + + return QE_CLK_DUMMY; +} + +static void qe_uec_set_eth_type(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct uec_priv *uec = priv->uec; + struct uec_inf *uec_info = uec->uec_info; + struct ucc_fast_inf *uf_info = &uec_info->uf_info; + + switch (uec_info->enet_interface_type) { + case PHY_INTERFACE_MODE_GMII: + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_TBI: + case PHY_INTERFACE_MODE_RTBI: + case PHY_INTERFACE_MODE_SGMII: + uf_info->eth_type = GIGA_ETH; + break; + default: + uf_info->eth_type = FAST_ETH; + break; + } +} + +static int qe_uec_set_uec_info(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + struct uec_priv *uec = priv->uec; + struct uec_inf *uec_info; + struct ucc_fast_inf *uf_info; + const char *s; + int ret; + u32 val; + + uec_info = (struct uec_inf *)malloc(sizeof(struct uec_inf)); + if (!uec_info) + return -ENOMEM; + + uf_info = &uec_info->uf_info; + + ret = dev_read_u32(dev, "cell-index", &val); + if (ret) { + ret = dev_read_u32(dev, "device-id", &val); + if (ret) { + pr_err("no cell-index nor device-id found!"); + goto out; + } + } + + uf_info->ucc_num = val - 1; + if (uf_info->ucc_num < 0 || uf_info->ucc_num > 7) { + ret = -ENODEV; + goto out; + } + + ret = dev_read_string_index(dev, "rx-clock-name", 0, &s); + if (!ret) { + uf_info->rx_clock = qe_clock_source(s); + if (uf_info->rx_clock < QE_CLK_NONE || + uf_info->rx_clock > QE_CLK24) { + pr_err("invalid rx-clock-name property\n"); + ret = -EINVAL; + goto out; + } + } else { + ret = dev_read_u32(dev, "rx-clock", &val); + if (ret) { + /* + * If both rx-clock-name and rx-clock are missing, + * we want to tell people to use rx-clock-name. + */ + pr_err("missing rx-clock-name property\n"); + goto out; + } + if (val < QE_CLK_NONE || val > QE_CLK24) { + pr_err("invalid rx-clock property\n"); + ret = -EINVAL; + goto out; + } + uf_info->rx_clock = val; + } + + ret = dev_read_string_index(dev, "tx-clock-name", 0, &s); + if (!ret) { + uf_info->tx_clock = qe_clock_source(s); + if (uf_info->tx_clock < QE_CLK_NONE || + uf_info->tx_clock > QE_CLK24) { + pr_err("invalid tx-clock-name property\n"); + ret = -EINVAL; + goto out; + } + } else { + ret = dev_read_u32(dev, "tx-clock", &val); + if (ret) { + pr_err("missing tx-clock-name property\n"); + goto out; + } + if (val < QE_CLK_NONE || val > QE_CLK24) { + pr_err("invalid tx-clock property\n"); + ret = -EINVAL; + goto out; + } + uf_info->tx_clock = val; + } + + uec_info->num_threads_tx = UEC_NUM_OF_THREADS_1; + uec_info->num_threads_rx = UEC_NUM_OF_THREADS_1; + uec_info->risc_tx = QE_RISC_ALLOCATION_RISC1_AND_RISC2; + uec_info->risc_rx = QE_RISC_ALLOCATION_RISC1_AND_RISC2; + uec_info->tx_bd_ring_len = 16; + uec_info->rx_bd_ring_len = 16; +#if (MAX_QE_RISC == 4) + uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS; + uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS; +#endif + + uec_info->enet_interface_type = pdata->phy_interface; + + uec->uec_info = uec_info; + qe_uec_set_eth_type(dev); + + return 0; +out: + free(uec_info); + return ret; +} + +static int qe_uec_probe(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + struct uec_priv *uec; + int ret; + + /* Allocate the UEC private struct */ + uec = (struct uec_priv *)malloc(sizeof(struct uec_priv)); + if (!uec) + return -ENOMEM; + + memset(uec, 0, sizeof(struct uec_priv)); + priv->uec = uec; + uec->uec_regs = (uec_t *)pdata->iobase; + + /* setup uec info struct */ + ret = qe_uec_set_uec_info(dev); + if (ret) { + free(uec); + return ret; + } + + ret = uec_startup(dev); + if (ret) { + free(uec->uec_info); + free(uec); + return ret; + } + + priv->phydev = dm_eth_phy_connect(dev); + return 0; +} + +/* + * Remove the driver from an interface: + * - free up allocated memory + */ +static int qe_uec_remove(struct udevice *dev) +{ + struct qe_uec_priv *priv = dev_get_priv(dev); + + free(priv->uec); + return 0; +} + +static int qe_uec_ofdata_to_platdata(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + const char *phy_mode; + + pdata->iobase = (phys_addr_t)devfdt_get_addr(dev); + + pdata->phy_interface = -1; + phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), + "phy-connection-type", NULL); + if (phy_mode) + pdata->phy_interface = phy_get_interface_by_name(phy_mode); + if (pdata->phy_interface == -1) { + debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode); + return -EINVAL; + } + + return 0; +} + +static const struct udevice_id qe_uec_ids[] = { + { .compatible = QE_UEC_DRIVER_NAME }, + { } +}; + +U_BOOT_DRIVER(eth_qe_uec) = { + .name = QE_UEC_DRIVER_NAME, + .id = UCLASS_ETH, + .of_match = qe_uec_ids, + .ofdata_to_platdata = qe_uec_ofdata_to_platdata, + .probe = qe_uec_probe, + .remove = qe_uec_remove, + .ops = &qe_uec_eth_ops, + .priv_auto_alloc_size = sizeof(struct qe_uec_priv), + .platdata_auto_alloc_size = sizeof(struct eth_pdata), +}; 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