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Diffstat (limited to 'drivers/net/cs8900.c')
-rw-r--r--drivers/net/cs8900.c320
1 files changed, 0 insertions, 320 deletions
diff --git a/drivers/net/cs8900.c b/drivers/net/cs8900.c
deleted file mode 100644
index 9440a91882..0000000000
--- a/drivers/net/cs8900.c
+++ /dev/null
@@ -1,320 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Cirrus Logic CS8900A Ethernet
- *
- * (C) 2009 Ben Warren , biggerbadderben@gmail.com
- * Converted to use CONFIG_NET_MULTI API
- *
- * (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>
- *
- * 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.
- */
-
-#include <common.h>
-#include <command.h>
-#include <log.h>
-#include <asm/io.h>
-#include <net.h>
-#include <malloc.h>
-#include <linux/delay.h>
-#include "cs8900.h"
-
-#undef DEBUG
-
-/* packet page register access functions */
-
-#ifdef CONFIG_CS8900_BUS32
-
-#define REG_WRITE(v, a) writel((v),(a))
-#define REG_READ(a) readl((a))
-
-/* we don't need 16 bit initialisation on 32 bit bus */
-#define get_reg_init_bus(r,d) get_reg((r),(d))
-
-#else
-
-#define REG_WRITE(v, a) writew((v),(a))
-#define REG_READ(a) readw((a))
-
-static u16 get_reg_init_bus(struct eth_device *dev, int regno)
-{
- /* force 16 bit busmode */
- struct cs8900_priv *priv = (struct cs8900_priv *)(dev->priv);
- uint8_t volatile * const iob = (uint8_t volatile * const)dev->iobase;
-
- readb(iob);
- readb(iob + 1);
- readb(iob);
- readb(iob + 1);
- readb(iob);
-
- REG_WRITE(regno, &priv->regs->pptr);
- return REG_READ(&priv->regs->pdata);
-}
-#endif
-
-static u16 get_reg(struct eth_device *dev, int regno)
-{
- struct cs8900_priv *priv = (struct cs8900_priv *)(dev->priv);
- REG_WRITE(regno, &priv->regs->pptr);
- return REG_READ(&priv->regs->pdata);
-}
-
-
-static void put_reg(struct eth_device *dev, int regno, u16 val)
-{
- struct cs8900_priv *priv = (struct cs8900_priv *)(dev->priv);
- REG_WRITE(regno, &priv->regs->pptr);
- REG_WRITE(val, &priv->regs->pdata);
-}
-
-static void cs8900_reset(struct eth_device *dev)
-{
- int tmo;
- u16 us;
-
- /* reset NIC */
- put_reg(dev, PP_SelfCTL, get_reg(dev, PP_SelfCTL) | PP_SelfCTL_Reset);
-
- /* wait for 200ms */
- udelay(200000);
- /* Wait until the chip is reset */
-
- tmo = get_timer(0) + 1 * CONFIG_SYS_HZ;
- while ((((us = get_reg_init_bus(dev, PP_SelfSTAT)) &
- PP_SelfSTAT_InitD) == 0) && tmo < get_timer(0))
- /*NOP*/;
-}
-
-static void cs8900_reginit(struct eth_device *dev)
-{
- /* receive only error free packets addressed to this card */
- put_reg(dev, PP_RxCTL,
- PP_RxCTL_IA | PP_RxCTL_Broadcast | PP_RxCTL_RxOK);
- /* do not generate any interrupts on receive operations */
- put_reg(dev, PP_RxCFG, 0);
- /* do not generate any interrupts on transmit operations */
- put_reg(dev, PP_TxCFG, 0);
- /* do not generate any interrupts on buffer operations */
- put_reg(dev, PP_BufCFG, 0);
- /* enable transmitter/receiver mode */
- put_reg(dev, PP_LineCTL, PP_LineCTL_Rx | PP_LineCTL_Tx);
-}
-
-void cs8900_get_enetaddr(struct eth_device *dev)
-{
- int i;
-
- /* verify chip id */
- if (get_reg_init_bus(dev, PP_ChipID) != 0x630e)
- return;
- cs8900_reset(dev);
- if ((get_reg(dev, PP_SelfSTAT) &
- (PP_SelfSTAT_EEPROM | PP_SelfSTAT_EEPROM_OK)) ==
- (PP_SelfSTAT_EEPROM | PP_SelfSTAT_EEPROM_OK)) {
-
- /* Load the MAC from EEPROM */
- for (i = 0; i < 3; i++) {
- u32 Addr;
-
- Addr = get_reg(dev, PP_IA + i * 2);
- dev->enetaddr[i * 2] = Addr & 0xFF;
- dev->enetaddr[i * 2 + 1] = Addr >> 8;
- }
- }
-}
-
-void cs8900_halt(struct eth_device *dev)
-{
- /* disable transmitter/receiver mode */
- put_reg(dev, PP_LineCTL, 0);
-
- /* "shutdown" to show ChipID or kernel wouldn't find he cs8900 ... */
- get_reg_init_bus(dev, PP_ChipID);
-}
-
-static int cs8900_init(struct eth_device *dev, struct bd_info * bd)
-{
- uchar *enetaddr = dev->enetaddr;
- u16 id;
-
- /* verify chip id */
- id = get_reg_init_bus(dev, PP_ChipID);
- if (id != 0x630e) {
- printf ("CS8900 Ethernet chip not found: "
- "ID=0x%04x instead 0x%04x\n", id, 0x630e);
- return 1;
- }
-
- cs8900_reset (dev);
- /* set the ethernet address */
- put_reg(dev, PP_IA + 0, enetaddr[0] | (enetaddr[1] << 8));
- put_reg(dev, PP_IA + 2, enetaddr[2] | (enetaddr[3] << 8));
- put_reg(dev, PP_IA + 4, enetaddr[4] | (enetaddr[5] << 8));
-
- cs8900_reginit(dev);
- return 0;
-}
-
-/* Get a data block via Ethernet */
-static int cs8900_recv(struct eth_device *dev)
-{
- int i;
- u16 rxlen;
- u16 *addr;
- u16 status;
-
- struct cs8900_priv *priv = (struct cs8900_priv *)(dev->priv);
-
- status = get_reg(dev, PP_RER);
-
- if ((status & PP_RER_RxOK) == 0)
- return 0;
-
- status = REG_READ(&priv->regs->rtdata);
- rxlen = REG_READ(&priv->regs->rtdata);
-
- if (rxlen > PKTSIZE_ALIGN + PKTALIGN)
- debug("packet too big!\n");
- for (addr = (u16 *)net_rx_packets[0], i = rxlen >> 1; i > 0; i--)
- *addr++ = REG_READ(&priv->regs->rtdata);
- if (rxlen & 1)
- *addr++ = REG_READ(&priv->regs->rtdata);
-
- /* Pass the packet up to the protocol layers. */
- net_process_received_packet(net_rx_packets[0], rxlen);
- return rxlen;
-}
-
-/* Send a data block via Ethernet. */
-static int cs8900_send(struct eth_device *dev, void *packet, int length)
-{
- volatile u16 *addr;
- int tmo;
- u16 s;
- struct cs8900_priv *priv = (struct cs8900_priv *)(dev->priv);
-
-retry:
- /* initiate a transmit sequence */
- REG_WRITE(PP_TxCmd_TxStart_Full, &priv->regs->txcmd);
- REG_WRITE(length, &priv->regs->txlen);
-
- /* Test to see if the chip has allocated memory for the packet */
- if ((get_reg(dev, PP_BusSTAT) & PP_BusSTAT_TxRDY) == 0) {
- /* Oops... this should not happen! */
- debug("cs: unable to send packet; retrying...\n");
- for (tmo = get_timer(0) + 5 * CONFIG_SYS_HZ;
- get_timer(0) < tmo;)
- /*NOP*/;
- cs8900_reset(dev);
- cs8900_reginit(dev);
- goto retry;
- }
-
- /* Write the contents of the packet */
- /* assume even number of bytes */
- for (addr = packet; length > 0; length -= 2)
- REG_WRITE(*addr++, &priv->regs->rtdata);
-
- /* wait for transfer to succeed */
- tmo = get_timer(0) + 5 * CONFIG_SYS_HZ;
- while ((s = get_reg(dev, PP_TER) & ~0x1F) == 0) {
- if (get_timer(0) >= tmo)
- break;
- }
-
- /* nothing */ ;
- if((s & (PP_TER_CRS | PP_TER_TxOK)) != PP_TER_TxOK) {
- debug("\ntransmission error %#x\n", s);
- }
-
- return 0;
-}
-
-static void cs8900_e2prom_ready(struct eth_device *dev)
-{
- while (get_reg(dev, PP_SelfSTAT) & SI_BUSY)
- ;
-}
-
-/***********************************************************/
-/* read a 16-bit word out of the EEPROM */
-/***********************************************************/
-
-int cs8900_e2prom_read(struct eth_device *dev,
- u8 addr, u16 *value)
-{
- cs8900_e2prom_ready(dev);
- put_reg(dev, PP_EECMD, EEPROM_READ_CMD | addr);
- cs8900_e2prom_ready(dev);
- *value = get_reg(dev, PP_EEData);
-
- return 0;
-}
-
-
-/***********************************************************/
-/* write a 16-bit word into the EEPROM */
-/***********************************************************/
-
-int cs8900_e2prom_write(struct eth_device *dev, u8 addr, u16 value)
-{
- cs8900_e2prom_ready(dev);
- put_reg(dev, PP_EECMD, EEPROM_WRITE_EN);
- cs8900_e2prom_ready(dev);
- put_reg(dev, PP_EEData, value);
- put_reg(dev, PP_EECMD, EEPROM_WRITE_CMD | addr);
- cs8900_e2prom_ready(dev);
- put_reg(dev, PP_EECMD, EEPROM_WRITE_DIS);
- cs8900_e2prom_ready(dev);
-
- return 0;
-}
-
-int cs8900_initialize(u8 dev_num, int base_addr)
-{
- struct eth_device *dev;
- struct cs8900_priv *priv;
-
- dev = malloc(sizeof(*dev));
- if (!dev) {
- return 0;
- }
- memset(dev, 0, sizeof(*dev));
-
- priv = malloc(sizeof(*priv));
- if (!priv) {
- free(dev);
- return 0;
- }
- memset(priv, 0, sizeof(*priv));
- priv->regs = (struct cs8900_regs *)base_addr;
-
- dev->iobase = base_addr;
- dev->priv = priv;
- dev->init = cs8900_init;
- dev->halt = cs8900_halt;
- dev->send = cs8900_send;
- dev->recv = cs8900_recv;
-
- /* Load MAC address from EEPROM */
- cs8900_get_enetaddr(dev);
-
- sprintf(dev->name, "%s-%hu", CS8900_DRIVERNAME, dev_num);
-
- eth_register(dev);
- return 0;
-}
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