diff options
Diffstat (limited to 'drivers/net/xilinx_ll_temac.c')
| -rw-r--r-- | drivers/net/xilinx_ll_temac.c | 394 |
1 files changed, 0 insertions, 394 deletions
diff --git a/drivers/net/xilinx_ll_temac.c b/drivers/net/xilinx_ll_temac.c deleted file mode 100644 index 1e7e2e49af9..00000000000 --- a/drivers/net/xilinx_ll_temac.c +++ /dev/null @@ -1,394 +0,0 @@ -/* - * Xilinx xps_ll_temac ethernet driver for u-boot - * - * supports SDMA or FIFO access and MDIO bus communication - * - * Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net> - * Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu> - * Copyright (C) 2008 - 2011 PetaLogix - * - * Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver - * Copyright (C) 2008 Nissin Systems Co.,Ltd. - * March 2008 created - * - * SPDX-License-Identifier: GPL-2.0+ - * - * [0]: http://www.xilinx.com/support/documentation - * - * [S]: [0]/ip_documentation/xps_ll_temac.pdf - * [A]: [0]/application_notes/xapp1041.pdf - */ - -#include <config.h> -#include <common.h> -#include <net.h> -#include <netdev.h> -#include <malloc.h> -#include <asm/io.h> -#include <miiphy.h> - -#include "xilinx_ll_temac.h" -#include "xilinx_ll_temac_fifo.h" -#include "xilinx_ll_temac_sdma.h" -#include "xilinx_ll_temac_mdio.h" - -#if !defined(CONFIG_MII) -# error "LL_TEMAC requires MII -- missing CONFIG_MII" -#endif - -#if !defined(CONFIG_PHYLIB) -# error "LL_TEMAC requires PHYLIB -- missing CONFIG_PHYLIB" -#endif - -struct ll_temac_info { - int flags; - unsigned long base_addr; - unsigned long ctrl_addr; - char *devname; - unsigned int phyaddr; - char *mdio_busname; -}; - -/* Ethernet interface ready status */ -int ll_temac_check_status(struct temac_reg *regs, u32 mask) -{ - unsigned timeout = 50; /* 1usec * 50 = 50usec */ - - /* - * Quote from LL TEMAC documentation: The bits in the RDY - * register are asserted when there is no access in progress. - * When an access is in progress, a bit corresponding to the - * type of access is automatically de-asserted. The bit is - * automatically re-asserted when the access is complete. - */ - while (timeout && (!(in_be32(®s->rdy) & mask))) { - timeout--; - udelay(1); - } - - if (!timeout) { - printf("%s: Timeout on 0x%08x @%p\n", __func__, - mask, ®s->rdy); - return 1; - } - - return 0; -} - -/* - * Indirect write to ll_temac. - * - * http://www.xilinx.com/support/documentation/ip_documentation/xps_ll_temac.pdf - * page 23, second paragraph, The use of CTL0 register or CTL1 register - */ -int ll_temac_indirect_set(struct temac_reg *regs, u16 regn, u32 reg_data) -{ - out_be32(®s->lsw, (reg_data & MLSW_MASK)); - out_be32(®s->ctl, CTL_WEN | (regn & CTL_ADDR_MASK)); - - if (ll_temac_check_status(regs, RSE_CFG_WR)) - return 0; - - return 1; -} - -/* - * Indirect read from ll_temac. - * - * http://www.xilinx.com/support/documentation/ip_documentation/xps_ll_temac.pdf - * page 23, second paragraph, The use of CTL0 register or CTL1 register - */ -int ll_temac_indirect_get(struct temac_reg *regs, u16 regn, u32* reg_data) -{ - out_be32(®s->ctl, (regn & CTL_ADDR_MASK)); - - if (ll_temac_check_status(regs, RSE_CFG_RR)) - return 0; - - *reg_data = in_be32(®s->lsw) & MLSW_MASK; - return 1; -} - -/* setting sub-controller and ll_temac to proper setting */ -static int ll_temac_setup_ctrl(struct eth_device *dev) -{ - struct ll_temac *ll_temac = dev->priv; - struct temac_reg *regs = (struct temac_reg *)dev->iobase; - - if (ll_temac->ctrlreset && ll_temac->ctrlreset(dev)) - return 0; - - if (ll_temac->ctrlinit && ll_temac->ctrlinit(dev)) - return 0; - - /* Promiscuous mode disable */ - if (!ll_temac_indirect_set(regs, TEMAC_AFM, 0)) - return 0; - - /* Enable Receiver - RX bit */ - if (!ll_temac_indirect_set(regs, TEMAC_RCW1, RCW1_RX)) - return 0; - - /* Enable Transmitter - TX bit */ - if (!ll_temac_indirect_set(regs, TEMAC_TC, TC_TX)) - return 0; - - return 1; -} - -/* - * Configure ll_temac based on negotiated speed and duplex - * reported by PHY handling code - */ -static int ll_temac_adjust_link(struct eth_device *dev) -{ - unsigned int speed, emmc_reg; - struct temac_reg *regs = (struct temac_reg *)dev->iobase; - struct ll_temac *ll_temac = dev->priv; - struct phy_device *phydev = ll_temac->phydev; - - if (!phydev->link) { - printf("%s: No link.\n", phydev->dev->name); - return 0; - } - - switch (phydev->speed) { - case 1000: - speed = EMMC_LSPD_1000; - break; - case 100: - speed = EMMC_LSPD_100; - break; - case 10: - speed = EMMC_LSPD_10; - break; - default: - return 0; - } - - if (!ll_temac_indirect_get(regs, TEMAC_EMMC, &emmc_reg)) - return 0; - - emmc_reg &= ~EMMC_LSPD_MASK; - emmc_reg |= speed; - - if (!ll_temac_indirect_set(regs, TEMAC_EMMC, emmc_reg)) - return 0; - - printf("%s: PHY is %s with %dbase%s, %s%s\n", - dev->name, phydev->drv->name, - phydev->speed, (phydev->port == PORT_TP) ? "T" : "X", - (phydev->duplex) ? "FDX" : "HDX", - (phydev->port == PORT_OTHER) ? ", unkown mode" : ""); - - return 1; -} - -/* setup mac addr */ -static int ll_temac_setup_mac_addr(struct eth_device *dev) -{ - struct temac_reg *regs = (struct temac_reg *)dev->iobase; - u32 val; - - /* set up unicast MAC address filter */ - val = ((dev->enetaddr[3] << 24) | (dev->enetaddr[2] << 16) | - (dev->enetaddr[1] << 8) | (dev->enetaddr[0])); - val &= UAW0_UADDR_MASK; - - if (!ll_temac_indirect_set(regs, TEMAC_UAW0, val)) - return 1; - - val = ((dev->enetaddr[5] << 8) | dev->enetaddr[4]); - val &= UAW1_UADDR_MASK; - - if (!ll_temac_indirect_set(regs, TEMAC_UAW1, val)) - return 1; - - return 0; -} - -/* halt device */ -static void ll_temac_halt(struct eth_device *dev) -{ - struct ll_temac *ll_temac = dev->priv; - struct temac_reg *regs = (struct temac_reg *)dev->iobase; - - /* Disable Receiver */ - ll_temac_indirect_set(regs, TEMAC_RCW0, 0); - - /* Disable Transmitter */ - ll_temac_indirect_set(regs, TEMAC_TC, 0); - - if (ll_temac->ctrlhalt) - ll_temac->ctrlhalt(dev); - - /* Shut down the PHY, as needed */ - phy_shutdown(ll_temac->phydev); -} - -static int ll_temac_init(struct eth_device *dev, bd_t *bis) -{ - struct ll_temac *ll_temac = dev->priv; - int ret; - - printf("%s: Xilinx XPS LocalLink Tri-Mode Ether MAC #%d at 0x%08lx.\n", - dev->name, dev->index, dev->iobase); - - if (!ll_temac_setup_ctrl(dev)) - return -1; - - /* Start up the PHY */ - ret = phy_startup(ll_temac->phydev); - if (ret) { - printf("%s: Could not initialize PHY %s\n", - dev->name, ll_temac->phydev->dev->name); - return ret; - } - - if (!ll_temac_adjust_link(dev)) { - ll_temac_halt(dev); - return -1; - } - - /* If there's no link, fail */ - return ll_temac->phydev->link ? 0 : -1; -} - -/* - * Discover which PHY is attached to the device, and configure it - * properly. If the PHY is not recognized, then return 0 - * (failure). Otherwise, return 1 - */ -static int ll_temac_phy_init(struct eth_device *dev) -{ - struct ll_temac *ll_temac = dev->priv; - struct phy_device *phydev; - unsigned int supported = PHY_GBIT_FEATURES; - - /* interface - look at driver/net/tsec.c */ - phydev = phy_connect(ll_temac->bus, ll_temac->phyaddr, - dev, PHY_INTERFACE_MODE_NONE); - - phydev->supported &= supported; - phydev->advertising = phydev->supported; - - ll_temac->phydev = phydev; - - phy_config(phydev); - - return 1; -} - -/* - * Initialize a single ll_temac devices - * - * Returns the result of ll_temac phy interface that were initialized - */ -int xilinx_ll_temac_initialize(bd_t *bis, struct ll_temac_info *devinf) -{ - struct eth_device *dev; - struct ll_temac *ll_temac; - - dev = calloc(1, sizeof(*dev)); - if (dev == NULL) - return 0; - - ll_temac = calloc(1, sizeof(struct ll_temac)); - if (ll_temac == NULL) { - free(dev); - return 0; - } - - /* use given name or generate its own unique name */ - if (devinf->devname) { - strncpy(dev->name, devinf->devname, sizeof(dev->name)); - } else { - snprintf(dev->name, sizeof(dev->name), "ll_tem.%lx", - devinf->base_addr); - devinf->devname = dev->name; - } - - dev->iobase = devinf->base_addr; - - dev->priv = ll_temac; - dev->init = ll_temac_init; - dev->halt = ll_temac_halt; - dev->write_hwaddr = ll_temac_setup_mac_addr; - - ll_temac->ctrladdr = devinf->ctrl_addr; - if (devinf->flags & XILINX_LL_TEMAC_M_SDMA_PLB) { - ll_temac_collect_xlplb_sdma_reg_addr(dev); - ll_temac->in32 = ll_temac_xlplb_in32; - ll_temac->out32 = ll_temac_xlplb_out32; - ll_temac->ctrlinit = ll_temac_init_sdma; - ll_temac->ctrlhalt = ll_temac_halt_sdma; - ll_temac->ctrlreset = ll_temac_reset_sdma; - dev->recv = ll_temac_recv_sdma; - dev->send = ll_temac_send_sdma; - } else { - ll_temac->in32 = NULL; - ll_temac->out32 = NULL; - ll_temac->ctrlinit = NULL; - ll_temac->ctrlhalt = NULL; - ll_temac->ctrlreset = ll_temac_reset_fifo; - dev->recv = ll_temac_recv_fifo; - dev->send = ll_temac_send_fifo; - } - - /* Link to specified MDIO bus */ - strncpy(ll_temac->mdio_busname, devinf->mdio_busname, MDIO_NAME_LEN); - ll_temac->bus = miiphy_get_dev_by_name(ll_temac->mdio_busname); - - /* Looking for a valid PHY address if it is not yet set */ - if (devinf->phyaddr == -1) - ll_temac->phyaddr = ll_temac_phy_addr(ll_temac->bus); - else - ll_temac->phyaddr = devinf->phyaddr; - - eth_register(dev); - - /* Try to initialize PHY here, and return */ - return ll_temac_phy_init(dev); -} - -/* - * Initialize a single ll_temac device with its mdio bus behind ll_temac - * - * Returns 1 if the ll_temac device and the mdio bus were initialized - * otherwise returns 0 - */ -int xilinx_ll_temac_eth_init(bd_t *bis, unsigned long base_addr, int flags, - unsigned long ctrl_addr) -{ - struct ll_temac_info devinf; - struct ll_temac_mdio_info mdioinf; - int ret; - - /* prepare the internal driver informations */ - devinf.flags = flags; - devinf.base_addr = base_addr; - devinf.ctrl_addr = ctrl_addr; - devinf.devname = NULL; - devinf.phyaddr = -1; - - mdioinf.name = devinf.mdio_busname = NULL; - mdioinf.regs = (struct temac_reg *)devinf.base_addr; - - ret = xilinx_ll_temac_mdio_initialize(bis, &mdioinf); - if (ret >= 0) { - - /* - * If there was no MDIO bus name then take over the - * new automaticaly generated by the MDIO init code. - */ - if (mdioinf.name != devinf.mdio_busname) - devinf.mdio_busname = mdioinf.name; - - ret = xilinx_ll_temac_initialize(bis, &devinf); - if (ret > 0) - return 1; - - } - - return 0; -} |