From 2439e4bfa111babf4bc07ba20efbf3e36036813e Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Wed, 21 Nov 2007 21:19:24 +0100 Subject: drivers/net : move net drivers to drivers/net Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- drivers/cs8900.c | 322 ------------------------------------------------------- 1 file changed, 322 deletions(-) delete mode 100644 drivers/cs8900.c (limited to 'drivers/cs8900.c') 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 - * Marius Groeger - * - * Copyright (C) 1999 Ben Williamson - * - * 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 -#include -#include "cs8900.h" -#include - -#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 */ -- cgit v1.1