diff options
Diffstat (limited to 'drivers/net/mvgbe.c')
| -rw-r--r-- | drivers/net/mvgbe.c | 736 |
1 files changed, 736 insertions, 0 deletions
diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c new file mode 100644 index 000000000..1efca1e9e --- /dev/null +++ b/drivers/net/mvgbe.c @@ -0,0 +1,736 @@ +/* + * (C) Copyright 2009 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar <prafulla@marvell.com> + * + * (C) Copyright 2003 + * Ingo Assmus <ingo.assmus@keymile.com> + * + * based on - Driver for MV64360X ethernet ports + * Copyright (C) 2002 rabeeh@galileo.co.il + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <net.h> +#include <malloc.h> +#include <miiphy.h> +#include <asm/errno.h> +#include <asm/types.h> +#include <asm/byteorder.h> +#include <asm/arch/kirkwood.h> +#include "mvgbe.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define KIRKWOOD_PHY_ADR_REQUEST 0xee +#define KWGBE_SMI_REG (((struct kwgbe_registers *)KW_EGIGA0_BASE)->smi) + +/* + * smi_reg_read - miiphy_read callback function. + * + * Returns 16bit phy register value, or 0xffff on error + */ +static int smi_reg_read(char *devname, u8 phy_adr, u8 reg_ofs, u16 * data) +{ + struct eth_device *dev = eth_get_dev_by_name(devname); + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_registers *regs = dkwgbe->regs; + u32 smi_reg; + u32 timeout; + + /* Phyadr read request */ + if (phy_adr == KIRKWOOD_PHY_ADR_REQUEST && + reg_ofs == KIRKWOOD_PHY_ADR_REQUEST) { + /* */ + *data = (u16) (KWGBEREG_RD(regs->phyadr) & PHYADR_MASK); + return 0; + } + /* check parameters */ + if (phy_adr > PHYADR_MASK) { + printf("Err..(%s) Invalid PHY address %d\n", + __FUNCTION__, phy_adr); + return -EFAULT; + } + if (reg_ofs > PHYREG_MASK) { + printf("Err..(%s) Invalid register offset %d\n", + __FUNCTION__, reg_ofs); + return -EFAULT; + } + + timeout = KWGBE_PHY_SMI_TIMEOUT; + /* wait till the SMI is not busy */ + do { + /* read smi register */ + smi_reg = KWGBEREG_RD(KWGBE_SMI_REG); + if (timeout-- == 0) { + printf("Err..(%s) SMI busy timeout\n", __FUNCTION__); + return -EFAULT; + } + } while (smi_reg & KWGBE_PHY_SMI_BUSY_MASK); + + /* fill the phy address and regiser offset and read opcode */ + smi_reg = (phy_adr << KWGBE_PHY_SMI_DEV_ADDR_OFFS) + | (reg_ofs << KWGBE_SMI_REG_ADDR_OFFS) + | KWGBE_PHY_SMI_OPCODE_READ; + + /* write the smi register */ + KWGBEREG_WR(KWGBE_SMI_REG, smi_reg); + + /*wait till read value is ready */ + timeout = KWGBE_PHY_SMI_TIMEOUT; + + do { + /* read smi register */ + smi_reg = KWGBEREG_RD(KWGBE_SMI_REG); + if (timeout-- == 0) { + printf("Err..(%s) SMI read ready timeout\n", + __FUNCTION__); + return -EFAULT; + } + } while (!(smi_reg & KWGBE_PHY_SMI_READ_VALID_MASK)); + + /* Wait for the data to update in the SMI register */ + for (timeout = 0; timeout < KWGBE_PHY_SMI_TIMEOUT; timeout++) ; + + *data = (u16) (KWGBEREG_RD(KWGBE_SMI_REG) & KWGBE_PHY_SMI_DATA_MASK); + + debug("%s:(adr %d, off %d) value= %04x\n", __FUNCTION__, phy_adr, + reg_ofs, *data); + + return 0; +} + +/* + * smi_reg_write - imiiphy_write callback function. + * + * Returns 0 if write succeed, -EINVAL on bad parameters + * -ETIME on timeout + */ +static int smi_reg_write(char *devname, u8 phy_adr, u8 reg_ofs, u16 data) +{ + struct eth_device *dev = eth_get_dev_by_name(devname); + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_registers *regs = dkwgbe->regs; + u32 smi_reg; + u32 timeout; + + /* Phyadr write request*/ + if (phy_adr == KIRKWOOD_PHY_ADR_REQUEST && + reg_ofs == KIRKWOOD_PHY_ADR_REQUEST) { + KWGBEREG_WR(regs->phyadr, data); + return 0; + } + + /* check parameters */ + if (phy_adr > PHYADR_MASK) { + printf("Err..(%s) Invalid phy address\n", __FUNCTION__); + return -EINVAL; + } + if (reg_ofs > PHYREG_MASK) { + printf("Err..(%s) Invalid register offset\n", __FUNCTION__); + return -EINVAL; + } + + /* wait till the SMI is not busy */ + timeout = KWGBE_PHY_SMI_TIMEOUT; + do { + /* read smi register */ + smi_reg = KWGBEREG_RD(KWGBE_SMI_REG); + if (timeout-- == 0) { + printf("Err..(%s) SMI busy timeout\n", __FUNCTION__); + return -ETIME; + } + } while (smi_reg & KWGBE_PHY_SMI_BUSY_MASK); + + /* fill the phy addr and reg offset and write opcode and data */ + smi_reg = (data << KWGBE_PHY_SMI_DATA_OFFS); + smi_reg |= (phy_adr << KWGBE_PHY_SMI_DEV_ADDR_OFFS) + | (reg_ofs << KWGBE_SMI_REG_ADDR_OFFS); + smi_reg &= ~KWGBE_PHY_SMI_OPCODE_READ; + + /* write the smi register */ + KWGBEREG_WR(KWGBE_SMI_REG, smi_reg); + + return 0; +} + +/* Stop and checks all queues */ +static void stop_queue(u32 * qreg) +{ + u32 reg_data; + + reg_data = readl(qreg); + + if (reg_data & 0xFF) { + /* Issue stop command for active channels only */ + writel((reg_data << 8), qreg); + + /* Wait for all queue activity to terminate. */ + do { + /* + * Check port cause register that all queues + * are stopped + */ + reg_data = readl(qreg); + } + while (reg_data & 0xFF); + } +} + +/* + * set_access_control - Config address decode parameters for Ethernet unit + * + * This function configures the address decode parameters for the Gigabit + * Ethernet Controller according the given parameters struct. + * + * @regs Register struct pointer. + * @param Address decode parameter struct. + */ +static void set_access_control(struct kwgbe_registers *regs, + struct kwgbe_winparam *param) +{ + u32 access_prot_reg; + + /* Set access control register */ + access_prot_reg = KWGBEREG_RD(regs->epap); + /* clear window permission */ + access_prot_reg &= (~(3 << (param->win * 2))); + access_prot_reg |= (param->access_ctrl << (param->win * 2)); + KWGBEREG_WR(regs->epap, access_prot_reg); + + /* Set window Size reg (SR) */ + KWGBEREG_WR(regs->barsz[param->win].size, + (((param->size / 0x10000) - 1) << 16)); + + /* Set window Base address reg (BA) */ + KWGBEREG_WR(regs->barsz[param->win].bar, + (param->target | param->attrib | param->base_addr)); + /* High address remap reg (HARR) */ + if (param->win < 4) + KWGBEREG_WR(regs->ha_remap[param->win], param->high_addr); + + /* Base address enable reg (BARER) */ + if (param->enable == 1) + KWGBEREG_BITS_RESET(regs->bare, (1 << param->win)); + else + KWGBEREG_BITS_SET(regs->bare, (1 << param->win)); +} + +static void set_dram_access(struct kwgbe_registers *regs) +{ + struct kwgbe_winparam win_param; + int i; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + /* Set access parameters for DRAM bank i */ + win_param.win = i; /* Use Ethernet window i */ + /* Window target - DDR */ + win_param.target = KWGBE_TARGET_DRAM; + /* Enable full access */ + win_param.access_ctrl = EWIN_ACCESS_FULL; + win_param.high_addr = 0; + /* Get bank base and size */ + win_param.base_addr = gd->bd->bi_dram[i].start; + win_param.size = gd->bd->bi_dram[i].size; + if (win_param.size == 0) + win_param.enable = 0; + else + win_param.enable = 1; /* Enable the access */ + + /* Enable DRAM bank */ + switch (i) { + case 0: + win_param.attrib = EBAR_DRAM_CS0; + break; + case 1: + win_param.attrib = EBAR_DRAM_CS1; + break; + case 2: + win_param.attrib = EBAR_DRAM_CS2; + break; + case 3: + win_param.attrib = EBAR_DRAM_CS3; + break; + default: + /* invalid bank, disable access */ + win_param.enable = 0; + win_param.attrib = 0; + break; + } + /* Set the access control for address window(EPAPR) RD/WR */ + set_access_control(regs, &win_param); + } +} + +/* + * port_init_mac_tables - Clear all entrance in the UC, SMC and OMC tables + * + * Go through all the DA filter tables (Unicast, Special Multicast & Other + * Multicast) and set each entry to 0. + */ +static void port_init_mac_tables(struct kwgbe_registers *regs) +{ + int table_index; + + /* Clear DA filter unicast table (Ex_dFUT) */ + for (table_index = 0; table_index < 4; ++table_index) + KWGBEREG_WR(regs->dfut[table_index], 0); + + for (table_index = 0; table_index < 64; ++table_index) { + /* Clear DA filter special multicast table (Ex_dFSMT) */ + KWGBEREG_WR(regs->dfsmt[table_index], 0); + /* Clear DA filter other multicast table (Ex_dFOMT) */ + KWGBEREG_WR(regs->dfomt[table_index], 0); + } +} + +/* + * port_uc_addr - This function Set the port unicast address table + * + * This function locates the proper entry in the Unicast table for the + * specified MAC nibble and sets its properties according to function + * parameters. + * This function add/removes MAC addresses from the port unicast address + * table. + * + * @uc_nibble Unicast MAC Address last nibble. + * @option 0 = Add, 1 = remove address. + * + * RETURN: 1 if output succeeded. 0 if option parameter is invalid. + */ +static int port_uc_addr(struct kwgbe_registers *regs, u8 uc_nibble, + int option) +{ + u32 unicast_reg; + u32 tbl_offset; + u32 reg_offset; + + /* Locate the Unicast table entry */ + uc_nibble = (0xf & uc_nibble); + /* Register offset from unicast table base */ + tbl_offset = (uc_nibble / 4); + /* Entry offset within the above register */ + reg_offset = uc_nibble % 4; + + switch (option) { + case REJECT_MAC_ADDR: + /* + * Clear accepts frame bit at specified unicast + * DA table entry + */ + unicast_reg = KWGBEREG_RD(regs->dfut[tbl_offset]); + unicast_reg &= (0xFF << (8 * reg_offset)); + KWGBEREG_WR(regs->dfut[tbl_offset], unicast_reg); + break; + case ACCEPT_MAC_ADDR: + /* Set accepts frame bit at unicast DA filter table entry */ + unicast_reg = KWGBEREG_RD(regs->dfut[tbl_offset]); + unicast_reg &= (0xFF << (8 * reg_offset)); + unicast_reg |= ((0x01 | (RXUQ << 1)) << (8 * reg_offset)); + KWGBEREG_WR(regs->dfut[tbl_offset], unicast_reg); + break; + default: + return 0; + } + return 1; +} + +/* + * port_uc_addr_set - This function Set the port Unicast address. + */ +static void port_uc_addr_set(struct kwgbe_registers *regs, u8 * p_addr) +{ + u32 mac_h; + u32 mac_l; + + mac_l = (p_addr[4] << 8) | (p_addr[5]); + mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) | + (p_addr[3] << 0); + + KWGBEREG_WR(regs->macal, mac_l); + KWGBEREG_WR(regs->macah, mac_h); + + /* Accept frames of this address */ + port_uc_addr(regs, p_addr[5], ACCEPT_MAC_ADDR); +} + +/* + * kwgbe_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory. + */ +static void kwgbe_init_rx_desc_ring(struct kwgbe_device *dkwgbe) +{ + struct kwgbe_rxdesc *p_rx_desc; + int i; + + /* initialize the Rx descriptors ring */ + p_rx_desc = dkwgbe->p_rxdesc; + for (i = 0; i < RINGSZ; i++) { + p_rx_desc->cmd_sts = + KWGBE_BUFFER_OWNED_BY_DMA | KWGBE_RX_EN_INTERRUPT; + p_rx_desc->buf_size = PKTSIZE_ALIGN; + p_rx_desc->byte_cnt = 0; + p_rx_desc->buf_ptr = dkwgbe->p_rxbuf + i * PKTSIZE_ALIGN; + if (i == (RINGSZ - 1)) + p_rx_desc->nxtdesc_p = dkwgbe->p_rxdesc; + else { + p_rx_desc->nxtdesc_p = (struct kwgbe_rxdesc *) + ((u32) p_rx_desc + KW_RXQ_DESC_ALIGNED_SIZE); + p_rx_desc = p_rx_desc->nxtdesc_p; + } + } + dkwgbe->p_rxdesc_curr = dkwgbe->p_rxdesc; +} + +static int kwgbe_init(struct eth_device *dev) +{ + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_registers *regs = dkwgbe->regs; +#if (defined (CONFIG_MII) || defined (CONFIG_CMD_MII)) \ + && defined (CONFIG_SYS_FAULT_ECHO_LINK_DOWN) + int i; +#endif + /* setup RX rings */ + kwgbe_init_rx_desc_ring(dkwgbe); + + /* Clear the ethernet port interrupts */ + KWGBEREG_WR(regs->ic, 0); + KWGBEREG_WR(regs->ice, 0); + /* Unmask RX buffer and TX end interrupt */ + KWGBEREG_WR(regs->pim, INT_CAUSE_UNMASK_ALL); + /* Unmask phy and link status changes interrupts */ + KWGBEREG_WR(regs->peim, INT_CAUSE_UNMASK_ALL_EXT); + + set_dram_access(regs); + port_init_mac_tables(regs); + port_uc_addr_set(regs, dkwgbe->dev.enetaddr); + + /* Assign port configuration and command. */ + KWGBEREG_WR(regs->pxc, PRT_CFG_VAL); + KWGBEREG_WR(regs->pxcx, PORT_CFG_EXTEND_VALUE); + KWGBEREG_WR(regs->psc0, PORT_SERIAL_CONTROL_VALUE); + + /* Assign port SDMA configuration */ + KWGBEREG_WR(regs->sdc, PORT_SDMA_CFG_VALUE); + KWGBEREG_WR(regs->tqx[0].qxttbc, QTKNBKT_DEF_VAL); + KWGBEREG_WR(regs->tqx[0].tqxtbc, (QMTBS_DEF_VAL << 16) | QTKNRT_DEF_VAL); + /* Turn off the port/RXUQ bandwidth limitation */ + KWGBEREG_WR(regs->pmtu, 0); + + /* Set maximum receive buffer to 9700 bytes */ + KWGBEREG_WR(regs->psc0, KWGBE_MAX_RX_PACKET_9700BYTE + | (KWGBEREG_RD(regs->psc0) & MRU_MASK)); + + /* Enable port initially */ + KWGBEREG_BITS_SET(regs->psc0, KWGBE_SERIAL_PORT_EN); + + /* + * Set ethernet MTU for leaky bucket mechanism to 0 - this will + * disable the leaky bucket mechanism . + */ + KWGBEREG_WR(regs->pmtu, 0); + + /* Assignment of Rx CRDB of given RXUQ */ + KWGBEREG_WR(regs->rxcdp[RXUQ], (u32) dkwgbe->p_rxdesc_curr); + /* ensure previous write is done before enabling Rx DMA */ + isb(); + /* Enable port Rx. */ + KWGBEREG_WR(regs->rqc, (1 << RXUQ)); + +#if (defined (CONFIG_MII) || defined (CONFIG_CMD_MII)) \ + && defined (CONFIG_SYS_FAULT_ECHO_LINK_DOWN) + /* Wait up to 5s for the link status */ + for (i = 0; i < 5; i++) { + u16 phyadr; + + miiphy_read(dev->name, KIRKWOOD_PHY_ADR_REQUEST, + KIRKWOOD_PHY_ADR_REQUEST, &phyadr); + /* Return if we get link up */ + if (miiphy_link(dev->name, phyadr)) + return 0; + udelay(1000000); + } + + printf("No link on %s\n", dev->name); + return -1; +#endif + return 0; +} + +static int kwgbe_halt(struct eth_device *dev) +{ + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_registers *regs = dkwgbe->regs; + + /* Disable all gigE address decoder */ + KWGBEREG_WR(regs->bare, 0x3f); + + stop_queue(®s->tqc); + stop_queue(®s->rqc); + + /* Disable port */ + KWGBEREG_BITS_RESET(regs->psc0, KWGBE_SERIAL_PORT_EN); + /* Set port is not reset */ + KWGBEREG_BITS_RESET(regs->psc1, 1 << 4); +#ifdef CONFIG_SYS_MII_MODE + /* Set MMI interface up */ + KWGBEREG_BITS_RESET(regs->psc1, 1 << 3); +#endif + /* Disable & mask ethernet port interrupts */ + KWGBEREG_WR(regs->ic, 0); + KWGBEREG_WR(regs->ice, 0); + KWGBEREG_WR(regs->pim, 0); + KWGBEREG_WR(regs->peim, 0); + + return 0; +} + +static int kwgbe_write_hwaddr(struct eth_device *dev) +{ + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_registers *regs = dkwgbe->regs; + + /* Programs net device MAC address after initialization */ + port_uc_addr_set(regs, dkwgbe->dev.enetaddr); + return 0; +} + +static int kwgbe_send(struct eth_device *dev, volatile void *dataptr, + int datasize) +{ + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_registers *regs = dkwgbe->regs; + struct kwgbe_txdesc *p_txdesc = dkwgbe->p_txdesc; + void *p = (void *)dataptr; + u32 cmd_sts; + + /* Copy buffer if it's misaligned */ + if ((u32) dataptr & 0x07) { + if (datasize > PKTSIZE_ALIGN) { + printf("Non-aligned data too large (%d)\n", + datasize); + return -1; + } + + memcpy(dkwgbe->p_aligned_txbuf, p, datasize); + p = dkwgbe->p_aligned_txbuf; + } + + p_txdesc->cmd_sts = KWGBE_ZERO_PADDING | KWGBE_GEN_CRC; + p_txdesc->cmd_sts |= KWGBE_TX_FIRST_DESC | KWGBE_TX_LAST_DESC; + p_txdesc->cmd_sts |= KWGBE_BUFFER_OWNED_BY_DMA; + p_txdesc->cmd_sts |= KWGBE_TX_EN_INTERRUPT; + p_txdesc->buf_ptr = (u8 *) p; + p_txdesc->byte_cnt = datasize; + + /* Set this tc desc as zeroth TXUQ */ + KWGBEREG_WR(regs->tcqdp[TXUQ], (u32) p_txdesc); + + /* ensure tx desc writes above are performed before we start Tx DMA */ + isb(); + + /* Apply send command using zeroth TXUQ */ + KWGBEREG_WR(regs->tqc, (1 << TXUQ)); + + /* + * wait for packet xmit completion + */ + cmd_sts = readl(&p_txdesc->cmd_sts); + while (cmd_sts & KWGBE_BUFFER_OWNED_BY_DMA) { + /* return fail if error is detected */ + if ((cmd_sts & (KWGBE_ERROR_SUMMARY | KWGBE_TX_LAST_FRAME)) == + (KWGBE_ERROR_SUMMARY | KWGBE_TX_LAST_FRAME) && + cmd_sts & (KWGBE_UR_ERROR | KWGBE_RL_ERROR)) { + printf("Err..(%s) in xmit packet\n", __FUNCTION__); + return -1; + } + cmd_sts = readl(&p_txdesc->cmd_sts); + }; + return 0; +} + +static int kwgbe_recv(struct eth_device *dev) +{ + struct kwgbe_device *dkwgbe = to_dkwgbe(dev); + struct kwgbe_rxdesc *p_rxdesc_curr = dkwgbe->p_rxdesc_curr; + u32 cmd_sts; + u32 timeout = 0; + + /* wait untill rx packet available or timeout */ + do { + if (timeout < KWGBE_PHY_SMI_TIMEOUT) + timeout++; + else { + debug("%s time out...\n", __FUNCTION__); + return -1; + } + } while (readl(&p_rxdesc_curr->cmd_sts) & KWGBE_BUFFER_OWNED_BY_DMA); + + if (p_rxdesc_curr->byte_cnt != 0) { + debug("%s: Received %d byte Packet @ 0x%x (cmd_sts= %08x)\n", + __FUNCTION__, (u32) p_rxdesc_curr->byte_cnt, + (u32) p_rxdesc_curr->buf_ptr, + (u32) p_rxdesc_curr->cmd_sts); + } + + /* + * In case received a packet without first/last bits on + * OR the error summary bit is on, + * the packets needs to be dropeed. + */ + cmd_sts = readl(&p_rxdesc_curr->cmd_sts); + + if ((cmd_sts & + (KWGBE_RX_FIRST_DESC | KWGBE_RX_LAST_DESC)) + != (KWGBE_RX_FIRST_DESC | KWGBE_RX_LAST_DESC)) { + + printf("Err..(%s) Dropping packet spread on" + " multiple descriptors\n", __FUNCTION__); + + } else if (cmd_sts & KWGBE_ERROR_SUMMARY) { + + printf("Err..(%s) Dropping packet with errors\n", + __FUNCTION__); + + } else { + /* !!! call higher layer processing */ + debug("%s: Sending Received packet to" + " upper layer (NetReceive)\n", __FUNCTION__); + + /* let the upper layer handle the packet */ + NetReceive((p_rxdesc_curr->buf_ptr + RX_BUF_OFFSET), + (int)(p_rxdesc_curr->byte_cnt - RX_BUF_OFFSET)); + } + /* + * free these descriptors and point next in the ring + */ + p_rxdesc_curr->cmd_sts = + KWGBE_BUFFER_OWNED_BY_DMA | KWGBE_RX_EN_INTERRUPT; + p_rxdesc_curr->buf_size = PKTSIZE_ALIGN; + p_rxdesc_curr->byte_cnt = 0; + + writel((unsigned)p_rxdesc_curr->nxtdesc_p, (u32) &dkwgbe->p_rxdesc_curr); + + return 0; +} + +int kirkwood_egiga_initialize(bd_t * bis) +{ + struct kwgbe_device *dkwgbe; + struct eth_device *dev; + int devnum; + char *s; + u8 used_ports[MAX_KWGBE_DEVS] = CONFIG_KIRKWOOD_EGIGA_PORTS; + + for (devnum = 0; devnum < MAX_KWGBE_DEVS; devnum++) { + /*skip if port is configured not to use */ + if (used_ports[devnum] == 0) + continue; + + if (!(dkwgbe = malloc(sizeof(struct kwgbe_device)))) + goto error1; + + memset(dkwgbe, 0, sizeof(struct kwgbe_device)); + + if (!(dkwgbe->p_rxdesc = + (struct kwgbe_rxdesc *)memalign(PKTALIGN, + KW_RXQ_DESC_ALIGNED_SIZE + * RINGSZ + 1))) + goto error2; + + if (!(dkwgbe->p_rxbuf = (u8 *) memalign(PKTALIGN, RINGSZ + * PKTSIZE_ALIGN + 1))) + goto error3; + + if (!(dkwgbe->p_aligned_txbuf = memalign(8, PKTSIZE_ALIGN))) + goto error4; + + if (!(dkwgbe->p_txdesc = (struct kwgbe_txdesc *) + memalign(PKTALIGN, sizeof(struct kwgbe_txdesc) + 1))) { + free(dkwgbe->p_aligned_txbuf); + error4: + free(dkwgbe->p_rxbuf); + error3: + free(dkwgbe->p_rxdesc); + error2: + free(dkwgbe); + error1: + printf("Err.. %s Failed to allocate memory\n", + __FUNCTION__); + return -1; + } + + dev = &dkwgbe->dev; + + /* must be less than NAMESIZE (16) */ + sprintf(dev->name, "egiga%d", devnum); + + /* Extract the MAC address from the environment */ + switch (devnum) { + case 0: + dkwgbe->regs = (void *)KW_EGIGA0_BASE; + s = "ethaddr"; + break; + case 1: + dkwgbe->regs = (void *)KW_EGIGA1_BASE; + s = "eth1addr"; + break; + default: /* this should never happen */ + printf("Err..(%s) Invalid device number %d\n", + __FUNCTION__, devnum); + return -1; + } + + while (!eth_getenv_enetaddr(s, dev->enetaddr)) { + /* Generate Private MAC addr if not set */ + dev->enetaddr[0] = 0x02; + dev->enetaddr[1] = 0x50; + dev->enetaddr[2] = 0x43; +#if defined (CONFIG_SKIP_LOCAL_MAC_RANDOMIZATION) + /* Generate fixed lower MAC half using devnum */ + dev->enetaddr[3] = 0; + dev->enetaddr[4] = 0; + dev->enetaddr[5] = devnum; +#else + /* Generate random lower MAC half */ + dev->enetaddr[3] = get_random_hex(); + dev->enetaddr[4] = get_random_hex(); + dev->enetaddr[5] = get_random_hex(); +#endif + eth_setenv_enetaddr(s, dev->enetaddr); + } + + dev->init = (void *)kwgbe_init; + dev->halt = (void *)kwgbe_halt; + dev->send = (void *)kwgbe_send; + dev->recv = (void *)kwgbe_recv; + dev->write_hwaddr = (void *)kwgbe_write_hwaddr; + + eth_register(dev); + +#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) + miiphy_register(dev->name, smi_reg_read, smi_reg_write); + /* Set phy address of the port */ + miiphy_write(dev->name, KIRKWOOD_PHY_ADR_REQUEST, + KIRKWOOD_PHY_ADR_REQUEST, PHY_BASE_ADR + devnum); +#endif + } + return 0; +} |