mirror of
https://github.com/AsahiLinux/u-boot
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d1927cee97
The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller?s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register businterface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <alexandreb@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
493 lines
11 KiB
C
493 lines
11 KiB
C
/*
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* (C) Copyright 2001-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <net.h>
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#include <miiphy.h>
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#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
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#ifdef CFG_GT_6426x
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extern int gt6426x_eth_initialize(bd_t *bis);
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#endif
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extern int au1x00_enet_initialize(bd_t*);
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extern int dc21x4x_initialize(bd_t*);
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extern int e1000_initialize(bd_t*);
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extern int eepro100_initialize(bd_t*);
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extern int eth_3com_initialize(bd_t*);
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extern int fec_initialize(bd_t*);
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extern int inca_switch_initialize(bd_t*);
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extern int mpc5xxx_fec_initialize(bd_t*);
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extern int mpc8220_fec_initialize(bd_t*);
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extern int mv6436x_eth_initialize(bd_t *);
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extern int mv6446x_eth_initialize(bd_t *);
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extern int natsemi_initialize(bd_t*);
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extern int ns8382x_initialize(bd_t*);
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extern int pcnet_initialize(bd_t*);
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extern int plb2800_eth_initialize(bd_t*);
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extern int ppc_4xx_eth_initialize(bd_t *);
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extern int rtl8139_initialize(bd_t*);
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extern int rtl8169_initialize(bd_t*);
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extern int scc_initialize(bd_t*);
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extern int skge_initialize(bd_t*);
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extern int tsi108_eth_initialize(bd_t*);
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extern int tsec_initialize(bd_t*, int, char *);
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extern int npe_initialize(bd_t *);
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static struct eth_device *eth_devices, *eth_current;
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struct eth_device *eth_get_dev(void)
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{
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return eth_current;
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}
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struct eth_device *eth_get_dev_by_name(char *devname)
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{
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struct eth_device *dev, *target_dev;
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if (!eth_devices)
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return NULL;
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dev = eth_devices;
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target_dev = NULL;
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do {
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if (strcmp(devname, dev->name) == 0) {
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target_dev = dev;
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break;
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}
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dev = dev->next;
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} while (dev != eth_devices);
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return target_dev;
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}
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int eth_get_dev_index (void)
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{
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struct eth_device *dev;
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int num = 0;
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if (!eth_devices) {
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return (-1);
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}
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for (dev = eth_devices; dev; dev = dev->next) {
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if (dev == eth_current)
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break;
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++num;
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}
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if (dev) {
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return (num);
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}
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return (0);
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}
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int eth_register(struct eth_device* dev)
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{
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struct eth_device *d;
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if (!eth_devices) {
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eth_current = eth_devices = dev;
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#ifdef CONFIG_NET_MULTI
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/* update current ethernet name */
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{
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char *act = getenv("ethact");
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if (act == NULL || strcmp(act, eth_current->name) != 0)
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setenv("ethact", eth_current->name);
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}
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#endif
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} else {
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for (d=eth_devices; d->next!=eth_devices; d=d->next);
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d->next = dev;
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}
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dev->state = ETH_STATE_INIT;
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dev->next = eth_devices;
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return 0;
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}
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int eth_initialize(bd_t *bis)
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{
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char enetvar[32], env_enetaddr[6];
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int i, eth_number = 0;
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char *tmp, *end;
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eth_devices = NULL;
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eth_current = NULL;
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#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
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miiphy_init();
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#endif
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#ifdef CONFIG_DB64360
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mv6436x_eth_initialize(bis);
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#endif
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#ifdef CONFIG_CPCI750
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mv6436x_eth_initialize(bis);
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#endif
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#ifdef CONFIG_DB64460
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mv6446x_eth_initialize(bis);
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#endif
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#if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) && !defined(CONFIG_AP1000)
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ppc_4xx_eth_initialize(bis);
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#endif
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#ifdef CONFIG_INCA_IP_SWITCH
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inca_switch_initialize(bis);
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#endif
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#ifdef CONFIG_PLB2800_ETHER
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plb2800_eth_initialize(bis);
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#endif
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#ifdef SCC_ENET
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scc_initialize(bis);
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#endif
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#if defined(CONFIG_MPC5xxx_FEC)
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mpc5xxx_fec_initialize(bis);
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#endif
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#if defined(CONFIG_MPC8220_FEC)
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mpc8220_fec_initialize(bis);
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#endif
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#if defined(CONFIG_SK98)
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skge_initialize(bis);
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#endif
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#if defined(CONFIG_MPC85XX_TSEC1)
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tsec_initialize(bis, 0, CONFIG_MPC85XX_TSEC1_NAME);
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#elif defined(CONFIG_MPC83XX_TSEC1)
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tsec_initialize(bis, 0, CONFIG_MPC83XX_TSEC1_NAME);
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#endif
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#if defined(CONFIG_MPC85XX_TSEC2)
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tsec_initialize(bis, 1, CONFIG_MPC85XX_TSEC2_NAME);
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#elif defined(CONFIG_MPC83XX_TSEC2)
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tsec_initialize(bis, 1, CONFIG_MPC83XX_TSEC2_NAME);
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#endif
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#if defined(CONFIG_MPC85XX_FEC)
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tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
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#else
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# if defined(CONFIG_MPC85XX_TSEC3)
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tsec_initialize(bis, 2, CONFIG_MPC85XX_TSEC3_NAME);
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# elif defined(CONFIG_MPC83XX_TSEC3)
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tsec_initialize(bis, 2, CONFIG_MPC83XX_TSEC3_NAME);
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# endif
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# if defined(CONFIG_MPC85XX_TSEC4)
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tsec_initialize(bis, 3, CONFIG_MPC85XX_TSEC4_NAME);
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# elif defined(CONFIG_MPC83XX_TSEC4)
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tsec_initialize(bis, 3, CONFIG_MPC83XX_TSEC4_NAME);
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# endif
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#endif
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#if defined(CONFIG_MPC86XX_TSEC1)
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tsec_initialize(bis, 0, CONFIG_MPC86XX_TSEC1_NAME);
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#endif
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#if defined(CONFIG_MPC86XX_TSEC2)
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tsec_initialize(bis, 1, CONFIG_MPC86XX_TSEC2_NAME);
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#endif
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#if defined(CONFIG_MPC86XX_TSEC3)
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tsec_initialize(bis, 2, CONFIG_MPC86XX_TSEC3_NAME);
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#endif
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#if defined(CONFIG_MPC86XX_TSEC4)
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tsec_initialize(bis, 3, CONFIG_MPC86XX_TSEC4_NAME);
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#endif
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#if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
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fec_initialize(bis);
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#endif
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#if defined(CONFIG_AU1X00)
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au1x00_enet_initialize(bis);
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#endif
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#if defined(CONFIG_IXP4XX_NPE)
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npe_initialize(bis);
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#endif
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#ifdef CONFIG_E1000
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e1000_initialize(bis);
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#endif
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#ifdef CONFIG_EEPRO100
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eepro100_initialize(bis);
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#endif
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#ifdef CONFIG_TULIP
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dc21x4x_initialize(bis);
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#endif
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#ifdef CONFIG_3COM
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eth_3com_initialize(bis);
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#endif
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#ifdef CONFIG_PCNET
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pcnet_initialize(bis);
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#endif
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#ifdef CFG_GT_6426x
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gt6426x_eth_initialize(bis);
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#endif
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#ifdef CONFIG_NATSEMI
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natsemi_initialize(bis);
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#endif
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#ifdef CONFIG_NS8382X
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ns8382x_initialize(bis);
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#endif
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#if defined(CONFIG_TSI108_ETH)
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tsi108_eth_initialize(bis);
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#endif
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#if defined(CONFIG_RTL8139)
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rtl8139_initialize(bis);
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#endif
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#if defined(CONFIG_RTL8169)
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rtl8169_initialize(bis);
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#endif
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if (!eth_devices) {
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puts ("No ethernet found.\n");
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} else {
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struct eth_device *dev = eth_devices;
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char *ethprime = getenv ("ethprime");
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do {
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if (eth_number)
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puts (", ");
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printf("%s", dev->name);
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if (ethprime && strcmp (dev->name, ethprime) == 0) {
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eth_current = dev;
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puts (" [PRIME]");
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}
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sprintf(enetvar, eth_number ? "eth%daddr" : "ethaddr", eth_number);
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tmp = getenv (enetvar);
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for (i=0; i<6; i++) {
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env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
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if (tmp)
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tmp = (*end) ? end+1 : end;
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}
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if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6)) {
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if (memcmp(dev->enetaddr, "\0\0\0\0\0\0", 6) &&
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memcmp(dev->enetaddr, env_enetaddr, 6))
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{
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printf ("\nWarning: %s MAC addresses don't match:\n",
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dev->name);
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printf ("Address in SROM is "
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"%02X:%02X:%02X:%02X:%02X:%02X\n",
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dev->enetaddr[0], dev->enetaddr[1],
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dev->enetaddr[2], dev->enetaddr[3],
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dev->enetaddr[4], dev->enetaddr[5]);
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printf ("Address in environment is "
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"%02X:%02X:%02X:%02X:%02X:%02X\n",
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env_enetaddr[0], env_enetaddr[1],
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env_enetaddr[2], env_enetaddr[3],
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env_enetaddr[4], env_enetaddr[5]);
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}
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memcpy(dev->enetaddr, env_enetaddr, 6);
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}
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eth_number++;
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dev = dev->next;
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} while(dev != eth_devices);
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#ifdef CONFIG_NET_MULTI
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/* update current ethernet name */
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if (eth_current) {
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char *act = getenv("ethact");
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if (act == NULL || strcmp(act, eth_current->name) != 0)
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setenv("ethact", eth_current->name);
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} else
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setenv("ethact", NULL);
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#endif
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putc ('\n');
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}
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return eth_number;
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}
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void eth_set_enetaddr(int num, char *addr) {
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struct eth_device *dev;
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unsigned char enetaddr[6];
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char *end;
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int i;
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debug ("eth_set_enetaddr(num=%d, addr=%s)\n", num, addr);
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if (!eth_devices)
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return;
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for (i=0; i<6; i++) {
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enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
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if (addr)
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addr = (*end) ? end+1 : end;
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}
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dev = eth_devices;
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while(num-- > 0) {
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dev = dev->next;
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if (dev == eth_devices)
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return;
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}
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debug ( "Setting new HW address on %s\n"
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"New Address is %02X:%02X:%02X:%02X:%02X:%02X\n",
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dev->name,
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enetaddr[0], enetaddr[1],
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enetaddr[2], enetaddr[3],
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enetaddr[4], enetaddr[5]);
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memcpy(dev->enetaddr, enetaddr, 6);
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}
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int eth_init(bd_t *bis)
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{
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struct eth_device* old_current;
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if (!eth_current)
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return 0;
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old_current = eth_current;
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do {
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debug ("Trying %s\n", eth_current->name);
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if (eth_current->init(eth_current, bis)) {
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eth_current->state = ETH_STATE_ACTIVE;
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return 1;
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}
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debug ("FAIL\n");
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eth_try_another(0);
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} while (old_current != eth_current);
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return 0;
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}
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void eth_halt(void)
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{
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if (!eth_current)
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return;
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eth_current->halt(eth_current);
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eth_current->state = ETH_STATE_PASSIVE;
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}
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int eth_send(volatile void *packet, int length)
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{
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if (!eth_current)
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return -1;
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return eth_current->send(eth_current, packet, length);
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}
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int eth_rx(void)
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{
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if (!eth_current)
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return -1;
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return eth_current->recv(eth_current);
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}
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void eth_try_another(int first_restart)
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{
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static struct eth_device *first_failed = NULL;
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if (!eth_current)
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return;
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if (first_restart) {
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first_failed = eth_current;
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}
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eth_current = eth_current->next;
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#ifdef CONFIG_NET_MULTI
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/* update current ethernet name */
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{
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char *act = getenv("ethact");
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if (act == NULL || strcmp(act, eth_current->name) != 0)
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setenv("ethact", eth_current->name);
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}
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#endif
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if (first_failed == eth_current) {
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NetRestartWrap = 1;
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}
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}
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#ifdef CONFIG_NET_MULTI
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void eth_set_current(void)
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{
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char *act;
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struct eth_device* old_current;
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if (!eth_current) /* XXX no current */
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return;
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act = getenv("ethact");
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if (act != NULL) {
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old_current = eth_current;
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do {
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if (strcmp(eth_current->name, act) == 0)
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return;
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eth_current = eth_current->next;
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} while (old_current != eth_current);
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}
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setenv("ethact", eth_current->name);
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}
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#endif
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char *eth_get_name (void)
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{
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return (eth_current ? eth_current->name : "unknown");
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}
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#elif (CONFIG_COMMANDS & CFG_CMD_NET) && !defined(CONFIG_NET_MULTI)
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extern int at91rm9200_miiphy_initialize(bd_t *bis);
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extern int emac4xx_miiphy_initialize(bd_t *bis);
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extern int mcf52x2_miiphy_initialize(bd_t *bis);
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extern int ns7520_miiphy_initialize(bd_t *bis);
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int eth_initialize(bd_t *bis)
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{
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#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
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miiphy_init();
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#endif
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#if defined(CONFIG_AT91RM9200)
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at91rm9200_miiphy_initialize(bis);
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#endif
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#if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
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&& !defined(CONFIG_AP1000) && !defined(CONFIG_405)
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emac4xx_miiphy_initialize(bis);
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#endif
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#if defined(CONFIG_MCF52x2)
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mcf52x2_miiphy_initialize(bis);
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#endif
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#if defined(CONFIG_NETARM)
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ns7520_miiphy_initialize(bis);
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#endif
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return 0;
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}
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#endif
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