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author | Marek Vasut <marex@denx.de> | 2012-10-03 08:54:10 (GMT) |
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committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-10-26 20:38:00 (GMT) |
commit | b411eb30f5ccca861b5aeee6b8e5880d4e4aea6b (patch) | |
tree | abecca7461f3ef1f9cb639f3f573a4cf19a38105 /drivers/net/netarm_eth.c | |
parent | afad40299eea12dfd032b44d04c2d4151d7e9862 (diff) | |
download | u-boot-b411eb30f5ccca861b5aeee6b8e5880d4e4aea6b.tar.xz |
arm: Remove support for NETARM
This stuff has been rotting in the tree for a while now. Remove it.
Signed-off-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/net/netarm_eth.c')
-rw-r--r-- | drivers/net/netarm_eth.c | 352 |
1 files changed, 0 insertions, 352 deletions
diff --git a/drivers/net/netarm_eth.c b/drivers/net/netarm_eth.c deleted file mode 100644 index 325f16c..0000000 --- a/drivers/net/netarm_eth.c +++ /dev/null @@ -1,352 +0,0 @@ -/* - * Copyright (C) 2004 IMMS gGmbH <www.imms.de> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - * author(s): Thomas Elste, <info@elste.org> - * (some parts derived from uCLinux Netarm Ethernet Driver) - */ - - -#include <common.h> -#include <command.h> -#include <net.h> -#include "netarm_eth.h" -#include <asm/arch/netarm_registers.h> - -static int na_mii_poll_busy (void); - -static void na_get_mac_addr (void) -{ - unsigned short p[3]; - char *m_addr; - char ethaddr[20]; - - m_addr = (char *) p; - - p[0] = (unsigned short) GET_EADDR (NETARM_ETH_SAL_STATION_ADDR_1); - p[1] = (unsigned short) GET_EADDR (NETARM_ETH_SAL_STATION_ADDR_2); - p[2] = (unsigned short) GET_EADDR (NETARM_ETH_SAL_STATION_ADDR_3); - - sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X", - m_addr[0], m_addr[1], - m_addr[2], m_addr[3], m_addr[4], m_addr[5]); - - printf ("HW-MAC Address: %s\n", ethaddr); - - /* set env, todo: check if already an adress is set */ - setenv ("ethaddr", ethaddr); -} - -static void na_mii_write (int reg, int value) -{ - int mii_addr; - - /* Select register */ - mii_addr = CONFIG_SYS_ETH_PHY_ADDR + reg; - SET_EADDR (NETARM_ETH_MII_ADDR, mii_addr); - /* Write value */ - SET_EADDR (NETARM_ETH_MII_WRITE, value); - na_mii_poll_busy (); -} - -static unsigned int na_mii_read (int reg) -{ - int mii_addr, val; - - /* Select register */ - mii_addr = CONFIG_SYS_ETH_PHY_ADDR + reg; - SET_EADDR (NETARM_ETH_MII_ADDR, mii_addr); - /* do one management cycle */ - SET_EADDR (NETARM_ETH_MII_CMD, - GET_EADDR (NETARM_ETH_MII_CMD) | NETARM_ETH_MIIC_RSTAT); - na_mii_poll_busy (); - /* Return read value */ - val = GET_EADDR (NETARM_ETH_MII_READ); - return val; -} - -static int na_mii_poll_busy (void) -{ - ulong start; - /* arm simple, non interrupt dependent timer */ - start = get_timer(0)); - while (get_timer(start) < NA_MII_POLL_BUSY_DELAY) { - if (!(GET_EADDR (NETARM_ETH_MII_IND) & NETARM_ETH_MIII_BUSY)) { - return 1; - } - } - printf ("na_mii_busy timeout\n"); - return (0); -} - -static int na_mii_identify_phy (void) -{ - int id_reg_a = 0; - - /* get phy id register */ - id_reg_a = na_mii_read (MII_PHY_ID); - - if (id_reg_a == 0x0043) { - /* This must be an Enable or a Lucent LU3X31 PHY chip */ - return 1; - } else if (id_reg_a == 0x0013) { - /* it is an Intel LXT971A */ - return 1; - } - return (0); -} - -static int na_mii_negotiate (void) -{ - int i = 0; - - /* Enable auto-negotiation */ - na_mii_write (MII_PHY_AUTONEGADV, 0x01e1); - /* FIXME: 0x01E1 is 100Mb half and full duplex, 0x0061 is 10Mb only */ - /* Restart auto-negotiation */ - na_mii_write (MII_PHY_CONTROL, 0x1200); - - /* status register is 0xffff after setting the autoneg restart bit */ - while (na_mii_read (MII_PHY_STATUS) == 0xffff) { - i++; - } - - /* na_mii_read uses the timer already, so we can't use it again for - timeout checking. - Instead we just try some times. - */ - for (i = 0; i < 40000; i++) { - if ((na_mii_read (MII_PHY_STATUS) & 0x0024) == 0x0024) { - return 0; - } - } - /* - printf("*Warning* autonegotiation timeout, status: 0x%x\n",na_mii_read(MII_PHY_STATUS)); - */ - return (1); -} - -static unsigned int na_mii_check_speed (void) -{ - unsigned int status; - - /* Read Status register */ - status = na_mii_read (MII_PHY_STATUS); - /* Check link status. If 0, default to 100 Mbps. */ - if ((status & 0x0004) == 0) { - printf ("*Warning* no link detected, set default speed to 100Mbs\n"); - return 1; - } else { - if ((na_mii_read (17) & 0x4000) != 0) { - printf ("100Mbs link detected\n"); - return 1; - } else { - printf ("10Mbs link detected\n"); - return 0; - } - } - return 0; -} - -static int reset_eth (void) -{ - int pt; - ulong start; - - na_get_mac_addr (); - pt = na_mii_identify_phy (); - - /* reset the phy */ - na_mii_write (MII_PHY_CONTROL, 0x8000); - start = get_timer(0); - while (get_timer(start) < NA_MII_NEGOTIATE_DELAY) { - if ((na_mii_read (MII_PHY_STATUS) & 0x8000) == 0) { - break; - } - } - if (get_timer(start) >= NA_MII_NEGOTIATE_DELAY) - printf ("phy reset timeout\n"); - - /* set the PCS reg */ - SET_EADDR (NETARM_ETH_PCS_CFG, NETARM_ETH_PCSC_CLKS_25M | - NETARM_ETH_PCSC_ENJAB | NETARM_ETH_PCSC_NOCFR); - - na_mii_negotiate (); - na_mii_check_speed (); - - /* Delay 10 millisecond. (Maybe this should be 1 second.) */ - udelay (10000); - - /* Turn receive on. - Enable statistics register autozero on read. - Do not insert MAC address on transmit. - Do not enable special test modes. */ - SET_EADDR (NETARM_ETH_STL_CFG, - (NETARM_ETH_STLC_AUTOZ | NETARM_ETH_STLC_RXEN)); - - /* Set the inter-packet gap delay to 0.96us for MII. - The NET+ARM H/W Reference Guide indicates that the Back-to-back IPG - Gap Timer Register should be set to 0x15 and the Non Back-to-back IPG - Gap Timer Register should be set to 0x00000C12 for the MII PHY. */ - SET_EADDR (NETARM_ETH_B2B_IPG_GAP_TMR, 0x15); - SET_EADDR (NETARM_ETH_NB2B_IPG_GAP_TMR, 0x00000C12); - - /* Add CRC to end of packets. - Pad packets to minimum length of 64 bytes. - Allow unlimited length transmit packets. - Receive all broadcast packets. - NOTE: Multicast addressing is NOT enabled here currently. */ - SET_EADDR (NETARM_ETH_MAC_CFG, - (NETARM_ETH_MACC_CRCEN | - NETARM_ETH_MACC_PADEN | NETARM_ETH_MACC_HUGEN)); - SET_EADDR (NETARM_ETH_SAL_FILTER, NETARM_ETH_SALF_BROAD); - - /* enable fifos */ - SET_EADDR (NETARM_ETH_GEN_CTRL, - (NETARM_ETH_GCR_ERX | NETARM_ETH_GCR_ETX)); - - return (0); -} - - -extern int eth_init (bd_t * bd) -{ - reset_eth (); - return 0; -} - -extern void eth_halt (void) -{ - SET_EADDR (NETARM_ETH_GEN_CTRL, 0); -} - -/* Get a data block via Ethernet */ -extern int eth_rx (void) -{ - int i; - unsigned short rxlen; - unsigned int *addr; - unsigned int rxstatus, lastrxlen; - char *pa; - - /* RXBR is 1, data block was received */ - if ((GET_EADDR (NETARM_ETH_GEN_STAT) & NETARM_ETH_GST_RXBR) == 0) - return 0; - - /* get status register and the length of received block */ - rxstatus = GET_EADDR (NETARM_ETH_RX_STAT); - rxlen = (rxstatus & NETARM_ETH_RXSTAT_SIZE) >> 16; - - if (rxlen == 0) - return 0; - - /* clear RXBR to make fifo available */ - SET_EADDR (NETARM_ETH_GEN_STAT, - GET_EADDR (NETARM_ETH_GEN_STAT) & ~NETARM_ETH_GST_RXBR); - - /* clear TXBC to make fifo available */ - /* According to NETARM50 data manual you just have to clear - RXBR but that has no effect. Only after clearing TXBC the - Fifo becomes readable. */ - SET_EADDR (NETARM_ETH_GEN_STAT, - GET_EADDR (NETARM_ETH_GEN_STAT) & ~NETARM_ETH_GST_TXBC); - - addr = (unsigned int *) NetRxPackets[0]; - pa = (char *) NetRxPackets[0]; - - /* read the fifo */ - for (i = 0; i < rxlen / 4; i++) { - *addr = GET_EADDR (NETARM_ETH_FIFO_DAT1); - addr++; - } - - if (GET_EADDR (NETARM_ETH_GEN_STAT) & NETARM_ETH_GST_RXREGR) { - /* RXFDB indicates wether the last word is 1,2,3 or 4 bytes long */ - lastrxlen = - (GET_EADDR (NETARM_ETH_GEN_STAT) & - NETARM_ETH_GST_RXFDB) >> 28; - *addr = GET_EADDR (NETARM_ETH_FIFO_DAT1); - switch (lastrxlen) { - case 1: - *addr &= 0xff000000; - break; - case 2: - *addr &= 0xffff0000; - break; - case 3: - *addr &= 0xffffff00; - break; - } - } - - /* Pass the packet up to the protocol layers. */ - NetReceive (NetRxPackets[0], rxlen); - - return rxlen; -} - -/* Send a data block via Ethernet. */ -extern int eth_send(void *packet, int length) -{ - int i, length32; - char *pa; - unsigned int *pa32, lastp = 0, rest; - - pa = (char *) packet; - pa32 = (unsigned int *) packet; - length32 = length / 4; - rest = length % 4; - - /* make sure there's no garbage in the last word */ - switch (rest) { - case 0: - lastp = pa32[length32]; - length32--; - break; - case 1: - lastp = pa32[length32] & 0x000000ff; - break; - case 2: - lastp = pa32[length32] & 0x0000ffff; - break; - case 3: - lastp = pa32[length32] & 0x00ffffff; - break; - } - - /* write to the fifo */ - for (i = 0; i < length32; i++) - SET_EADDR (NETARM_ETH_FIFO_DAT1, pa32[i]); - - /* the last word is written to an extra register, this - starts the transmission */ - SET_EADDR (NETARM_ETH_FIFO_DAT2, lastp); - - /* NETARM_ETH_TXSTAT_TXOK should be checked, to know if the transmission - went fine. But we can't use the timer for a timeout loop because - of it is used already in upper layers. So we just try some times. */ - i = 0; - while (i < 50000) { - if ((GET_EADDR (NETARM_ETH_TX_STAT) & NETARM_ETH_TXSTAT_TXOK) - == NETARM_ETH_TXSTAT_TXOK) - return 0; - i++; - } - - printf ("eth_send timeout\n"); - return 1; -} |