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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2007-11-21 21:19:24 +0100
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2007-11-25 18:35:17 +0100
commit2439e4bfa111babf4bc07ba20efbf3e36036813e (patch)
tree21e94282acdc681bdde2ccc270bd401254124d00 /drivers/cs8900.c
parent352d259130b349fe9593b8dada641bd78a9659e5 (diff)
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drivers/net : move net drivers to drivers/net
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'drivers/cs8900.c')
-rw-r--r--drivers/cs8900.c322
1 files changed, 0 insertions, 322 deletions
diff --git a/drivers/cs8900.c b/drivers/cs8900.c
deleted file mode 100644
index 80c4ba2..0000000
--- a/drivers/cs8900.c
+++ /dev/null
@@ -1,322 +0,0 @@
-/*
- * Cirrus Logic CS8900A Ethernet
- *
- * (C) 2003 Wolfgang Denk, wd@denx.de
- * Extension to synchronize ethaddr environment variable
- * against value in EEPROM
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * Copyright (C) 1999 Ben Williamson <benw@pobox.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is loaded into SRAM in bootstrap mode, where it waits
- * for commands on UART1 to read and write memory, jump to code etc.
- * A design goal for this program is to be entirely independent of the
- * target board. Anything with a CL-PS7111 or EP7211 should be able to run
- * this code in bootstrap mode. All the board specifics can be handled on
- * the host.
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <common.h>
-#include <command.h>
-#include "cs8900.h"
-#include <net.h>
-
-#ifdef CONFIG_DRIVER_CS8900
-
-#if defined(CONFIG_CMD_NET)
-
-#undef DEBUG
-
-/* packet page register access functions */
-
-#ifdef CS8900_BUS32
-/* we don't need 16 bit initialisation on 32 bit bus */
-#define get_reg_init_bus(x) get_reg((x))
-#else
-static unsigned short get_reg_init_bus (int regno)
-{
- /* force 16 bit busmode */
- volatile unsigned char c;
-
- c = CS8900_BUS16_0;
- c = CS8900_BUS16_1;
- c = CS8900_BUS16_0;
- c = CS8900_BUS16_1;
- c = CS8900_BUS16_0;
-
- CS8900_PPTR = regno;
- return (unsigned short) CS8900_PDATA;
-}
-#endif
-
-static unsigned short get_reg (int regno)
-{
- CS8900_PPTR = regno;
- return (unsigned short) CS8900_PDATA;
-}
-
-
-static void put_reg (int regno, unsigned short val)
-{
- CS8900_PPTR = regno;
- CS8900_PDATA = val;
-}
-
-static void eth_reset (void)
-{
- int tmo;
- unsigned short us;
-
- /* reset NIC */
- put_reg (PP_SelfCTL, get_reg (PP_SelfCTL) | PP_SelfCTL_Reset);
-
- /* wait for 200ms */
- udelay (200000);
- /* Wait until the chip is reset */
-
- tmo = get_timer (0) + 1 * CFG_HZ;
- while ((((us = get_reg_init_bus (PP_SelfSTAT)) & PP_SelfSTAT_InitD) == 0)
- && tmo < get_timer (0))
- /*NOP*/;
-}
-
-static void eth_reginit (void)
-{
- /* receive only error free packets addressed to this card */
- put_reg (PP_RxCTL, PP_RxCTL_IA | PP_RxCTL_Broadcast | PP_RxCTL_RxOK);
- /* do not generate any interrupts on receive operations */
- put_reg (PP_RxCFG, 0);
- /* do not generate any interrupts on transmit operations */
- put_reg (PP_TxCFG, 0);
- /* do not generate any interrupts on buffer operations */
- put_reg (PP_BufCFG, 0);
- /* enable transmitter/receiver mode */
- put_reg (PP_LineCTL, PP_LineCTL_Rx | PP_LineCTL_Tx);
-}
-
-void cs8900_get_enetaddr (uchar * addr)
-{
- int i;
- unsigned char env_enetaddr[6];
- char *tmp = getenv ("ethaddr");
- char *end;
-
- for (i=0; i<6; i++) {
- env_enetaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
- if (tmp)
- tmp = (*end) ? end+1 : end;
- }
-
- /* verify chip id */
- if (get_reg_init_bus (PP_ChipID) != 0x630e)
- return;
- eth_reset ();
- if ((get_reg (PP_SelfST) & (PP_SelfSTAT_EEPROM | PP_SelfSTAT_EEPROM_OK)) ==
- (PP_SelfSTAT_EEPROM | PP_SelfSTAT_EEPROM_OK)) {
-
- /* Load the MAC from EEPROM */
- for (i = 0; i < 6 / 2; i++) {
- unsigned int Addr;
-
- Addr = get_reg (PP_IA + i * 2);
- addr[i * 2] = Addr & 0xFF;
- addr[i * 2 + 1] = Addr >> 8;
- }
-
- if (memcmp(env_enetaddr, "\0\0\0\0\0\0", 6) != 0 &&
- memcmp(env_enetaddr, addr, 6) != 0) {
- printf ("\nWarning: MAC addresses don't match:\n");
- printf ("\tHW MAC address: "
- "%02X:%02X:%02X:%02X:%02X:%02X\n",
- addr[0], addr[1],
- addr[2], addr[3],
- addr[4], addr[5] );
- printf ("\t\"ethaddr\" value: "
- "%02X:%02X:%02X:%02X:%02X:%02X\n",
- env_enetaddr[0], env_enetaddr[1],
- env_enetaddr[2], env_enetaddr[3],
- env_enetaddr[4], env_enetaddr[5]) ;
- debug ("### Set MAC addr from environment\n");
- memcpy (addr, env_enetaddr, 6);
- }
- if (!tmp) {
- char ethaddr[20];
- sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
- addr[0], addr[1],
- addr[2], addr[3],
- addr[4], addr[5]) ;
- debug ("### Set environment from HW MAC addr = \"%s\"\n", ethaddr);
- setenv ("ethaddr", ethaddr);
- }
-
- }
-}
-
-void eth_halt (void)
-{
- /* disable transmitter/receiver mode */
- put_reg (PP_LineCTL, 0);
-
- /* "shutdown" to show ChipID or kernel wouldn't find he cs8900 ... */
- get_reg_init_bus (PP_ChipID);
-}
-
-int eth_init (bd_t * bd)
-{
-
- /* verify chip id */
- if (get_reg_init_bus (PP_ChipID) != 0x630e) {
- printf ("CS8900 Ethernet chip not found?!\n");
- return 0;
- }
-
- eth_reset ();
- /* set the ethernet address */
- put_reg (PP_IA + 0, bd->bi_enetaddr[0] | (bd->bi_enetaddr[1] << 8));
- put_reg (PP_IA + 2, bd->bi_enetaddr[2] | (bd->bi_enetaddr[3] << 8));
- put_reg (PP_IA + 4, bd->bi_enetaddr[4] | (bd->bi_enetaddr[5] << 8));
-
- eth_reginit ();
- return 0;
-}
-
-/* Get a data block via Ethernet */
-extern int eth_rx (void)
-{
- int i;
- unsigned short rxlen;
- unsigned short *addr;
- unsigned short status;
-
- status = get_reg (PP_RER);
-
- if ((status & PP_RER_RxOK) == 0)
- return 0;
-
- status = CS8900_RTDATA; /* stat */
- rxlen = CS8900_RTDATA; /* len */
-
-#ifdef DEBUG
- if (rxlen > PKTSIZE_ALIGN + PKTALIGN)
- printf ("packet too big!\n");
-#endif
- for (addr = (unsigned short *) NetRxPackets[0], i = rxlen >> 1; i > 0;
- i--)
- *addr++ = CS8900_RTDATA;
- if (rxlen & 1)
- *addr++ = CS8900_RTDATA;
-
- /* Pass the packet up to the protocol layers. */
- NetReceive (NetRxPackets[0], rxlen);
-
- return rxlen;
-}
-
-/* Send a data block via Ethernet. */
-extern int eth_send (volatile void *packet, int length)
-{
- volatile unsigned short *addr;
- int tmo;
- unsigned short s;
-
-retry:
- /* initiate a transmit sequence */
- CS8900_TxCMD = PP_TxCmd_TxStart_Full;
- CS8900_TxLEN = length;
-
- /* Test to see if the chip has allocated memory for the packet */
- if ((get_reg (PP_BusSTAT) & PP_BusSTAT_TxRDY) == 0) {
- /* Oops... this should not happen! */
-#ifdef DEBUG
- printf ("cs: unable to send packet; retrying...\n");
-#endif
- for (tmo = get_timer (0) + 5 * CFG_HZ; get_timer (0) < tmo;)
- /*NOP*/;
- eth_reset ();
- eth_reginit ();
- goto retry;
- }
-
- /* Write the contents of the packet */
- /* assume even number of bytes */
- for (addr = packet; length > 0; length -= 2)
- CS8900_RTDATA = *addr++;
-
- /* wait for transfer to succeed */
- tmo = get_timer (0) + 5 * CFG_HZ;
- while ((s = get_reg (PP_TER) & ~0x1F) == 0) {
- if (get_timer (0) >= tmo)
- break;
- }
-
- /* nothing */ ;
- if ((s & (PP_TER_CRS | PP_TER_TxOK)) != PP_TER_TxOK) {
-#ifdef DEBUG
- printf ("\ntransmission error %#x\n", s);
-#endif
- }
-
- return 0;
-}
-
-static void cs8900_e2prom_ready(void)
-{
- while(get_reg(PP_SelfST) & SI_BUSY);
-}
-
-/***********************************************************/
-/* read a 16-bit word out of the EEPROM */
-/***********************************************************/
-
-int cs8900_e2prom_read(unsigned char addr, unsigned short *value)
-{
- cs8900_e2prom_ready();
- put_reg(PP_EECMD, EEPROM_READ_CMD | addr);
- cs8900_e2prom_ready();
- *value = get_reg(PP_EEData);
-
- return 0;
-}
-
-
-/***********************************************************/
-/* write a 16-bit word into the EEPROM */
-/***********************************************************/
-
-int cs8900_e2prom_write(unsigned char addr, unsigned short value)
-{
- cs8900_e2prom_ready();
- put_reg(PP_EECMD, EEPROM_WRITE_EN);
- cs8900_e2prom_ready();
- put_reg(PP_EEData, value);
- put_reg(PP_EECMD, EEPROM_WRITE_CMD | addr);
- cs8900_e2prom_ready();
- put_reg(PP_EECMD, EEPROM_WRITE_DIS);
- cs8900_e2prom_ready();
-
- return 0;
-}
-
-#endif /* COMMANDS & CFG_NET */
-
-#endif /* CONFIG_DRIVER_CS8900 */