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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/eepro100.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/eepro100.c')
-rw-r--r--drivers/eepro100.c948
1 files changed, 0 insertions, 948 deletions
diff --git a/drivers/eepro100.c b/drivers/eepro100.c
deleted file mode 100644
index 738146e..0000000
--- a/drivers/eepro100.c
+++ /dev/null
@@ -1,948 +0,0 @@
-/*
- * (C) Copyright 2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <net.h>
-#include <asm/io.h>
-#include <pci.h>
-#include <miiphy.h>
-
-#undef DEBUG
-
-#if defined(CONFIG_CMD_NET) \
- && defined(CONFIG_NET_MULTI) && defined(CONFIG_EEPRO100)
-
- /* Ethernet chip registers.
- */
-#define SCBStatus 0 /* Rx/Command Unit Status *Word* */
-#define SCBIntAckByte 1 /* Rx/Command Unit STAT/ACK byte */
-#define SCBCmd 2 /* Rx/Command Unit Command *Word* */
-#define SCBIntrCtlByte 3 /* Rx/Command Unit Intr.Control Byte */
-#define SCBPointer 4 /* General purpose pointer. */
-#define SCBPort 8 /* Misc. commands and operands. */
-#define SCBflash 12 /* Flash memory control. */
-#define SCBeeprom 14 /* EEPROM memory control. */
-#define SCBCtrlMDI 16 /* MDI interface control. */
-#define SCBEarlyRx 20 /* Early receive byte count. */
-#define SCBGenControl 28 /* 82559 General Control Register */
-#define SCBGenStatus 29 /* 82559 General Status register */
-
- /* 82559 SCB status word defnitions
- */
-#define SCB_STATUS_CX 0x8000 /* CU finished command (transmit) */
-#define SCB_STATUS_FR 0x4000 /* frame received */
-#define SCB_STATUS_CNA 0x2000 /* CU left active state */
-#define SCB_STATUS_RNR 0x1000 /* receiver left ready state */
-#define SCB_STATUS_MDI 0x0800 /* MDI read/write cycle done */
-#define SCB_STATUS_SWI 0x0400 /* software generated interrupt */
-#define SCB_STATUS_FCP 0x0100 /* flow control pause interrupt */
-
-#define SCB_INTACK_MASK 0xFD00 /* all the above */
-
-#define SCB_INTACK_TX (SCB_STATUS_CX | SCB_STATUS_CNA)
-#define SCB_INTACK_RX (SCB_STATUS_FR | SCB_STATUS_RNR)
-
- /* System control block commands
- */
-/* CU Commands */
-#define CU_NOP 0x0000
-#define CU_START 0x0010
-#define CU_RESUME 0x0020
-#define CU_STATSADDR 0x0040 /* Load Dump Statistics ctrs addr */
-#define CU_SHOWSTATS 0x0050 /* Dump statistics counters. */
-#define CU_ADDR_LOAD 0x0060 /* Base address to add to CU commands */
-#define CU_DUMPSTATS 0x0070 /* Dump then reset stats counters. */
-
-/* RUC Commands */
-#define RUC_NOP 0x0000
-#define RUC_START 0x0001
-#define RUC_RESUME 0x0002
-#define RUC_ABORT 0x0004
-#define RUC_ADDR_LOAD 0x0006 /* (seems not to clear on acceptance) */
-#define RUC_RESUMENR 0x0007
-
-#define CU_CMD_MASK 0x00f0
-#define RU_CMD_MASK 0x0007
-
-#define SCB_M 0x0100 /* 0 = enable interrupt, 1 = disable */
-#define SCB_SWI 0x0200 /* 1 - cause device to interrupt */
-
-#define CU_STATUS_MASK 0x00C0
-#define RU_STATUS_MASK 0x003C
-
-#define RU_STATUS_IDLE (0<<2)
-#define RU_STATUS_SUS (1<<2)
-#define RU_STATUS_NORES (2<<2)
-#define RU_STATUS_READY (4<<2)
-#define RU_STATUS_NO_RBDS_SUS ((1<<2)|(8<<2))
-#define RU_STATUS_NO_RBDS_NORES ((2<<2)|(8<<2))
-#define RU_STATUS_NO_RBDS_READY ((4<<2)|(8<<2))
-
- /* 82559 Port interface commands.
- */
-#define I82559_RESET 0x00000000 /* Software reset */
-#define I82559_SELFTEST 0x00000001 /* 82559 Selftest command */
-#define I82559_SELECTIVE_RESET 0x00000002
-#define I82559_DUMP 0x00000003
-#define I82559_DUMP_WAKEUP 0x00000007
-
- /* 82559 Eeprom interface.
- */
-#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */
-#define EE_CS 0x02 /* EEPROM chip select. */
-#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
-#define EE_WRITE_0 0x01
-#define EE_WRITE_1 0x05
-#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
-#define EE_ENB (0x4800 | EE_CS)
-#define EE_CMD_BITS 3
-#define EE_DATA_BITS 16
-
- /* The EEPROM commands include the alway-set leading bit.
- */
-#define EE_EWENB_CMD (4 << addr_len)
-#define EE_WRITE_CMD (5 << addr_len)
-#define EE_READ_CMD (6 << addr_len)
-#define EE_ERASE_CMD (7 << addr_len)
-
- /* Receive frame descriptors.
- */
-struct RxFD {
- volatile u16 status;
- volatile u16 control;
- volatile u32 link; /* struct RxFD * */
- volatile u32 rx_buf_addr; /* void * */
- volatile u32 count;
-
- volatile u8 data[PKTSIZE_ALIGN];
-};
-
-#define RFD_STATUS_C 0x8000 /* completion of received frame */
-#define RFD_STATUS_OK 0x2000 /* frame received with no errors */
-
-#define RFD_CONTROL_EL 0x8000 /* 1=last RFD in RFA */
-#define RFD_CONTROL_S 0x4000 /* 1=suspend RU after receiving frame */
-#define RFD_CONTROL_H 0x0010 /* 1=RFD is a header RFD */
-#define RFD_CONTROL_SF 0x0008 /* 0=simplified, 1=flexible mode */
-
-#define RFD_COUNT_MASK 0x3fff
-#define RFD_COUNT_F 0x4000
-#define RFD_COUNT_EOF 0x8000
-
-#define RFD_RX_CRC 0x0800 /* crc error */
-#define RFD_RX_ALIGNMENT 0x0400 /* alignment error */
-#define RFD_RX_RESOURCE 0x0200 /* out of space, no resources */
-#define RFD_RX_DMA_OVER 0x0100 /* DMA overrun */
-#define RFD_RX_SHORT 0x0080 /* short frame error */
-#define RFD_RX_LENGTH 0x0020
-#define RFD_RX_ERROR 0x0010 /* receive error */
-#define RFD_RX_NO_ADR_MATCH 0x0004 /* no address match */
-#define RFD_RX_IA_MATCH 0x0002 /* individual address does not match */
-#define RFD_RX_TCO 0x0001 /* TCO indication */
-
- /* Transmit frame descriptors
- */
-struct TxFD { /* Transmit frame descriptor set. */
- volatile u16 status;
- volatile u16 command;
- volatile u32 link; /* void * */
- volatile u32 tx_desc_addr; /* Always points to the tx_buf_addr element. */
- volatile s32 count;
-
- volatile u32 tx_buf_addr0; /* void *, frame to be transmitted. */
- volatile s32 tx_buf_size0; /* Length of Tx frame. */
- volatile u32 tx_buf_addr1; /* void *, frame to be transmitted. */
- volatile s32 tx_buf_size1; /* Length of Tx frame. */
-};
-
-#define TxCB_CMD_TRANSMIT 0x0004 /* transmit command */
-#define TxCB_CMD_SF 0x0008 /* 0=simplified, 1=flexible mode */
-#define TxCB_CMD_NC 0x0010 /* 0=CRC insert by controller */
-#define TxCB_CMD_I 0x2000 /* generate interrupt on completion */
-#define TxCB_CMD_S 0x4000 /* suspend on completion */
-#define TxCB_CMD_EL 0x8000 /* last command block in CBL */
-
-#define TxCB_COUNT_MASK 0x3fff
-#define TxCB_COUNT_EOF 0x8000
-
- /* The Speedo3 Rx and Tx frame/buffer descriptors.
- */
-struct descriptor { /* A generic descriptor. */
- volatile u16 status;
- volatile u16 command;
- volatile u32 link; /* struct descriptor * */
-
- unsigned char params[0];
-};
-
-#define CFG_CMD_EL 0x8000
-#define CFG_CMD_SUSPEND 0x4000
-#define CFG_CMD_INT 0x2000
-#define CFG_CMD_IAS 0x0001 /* individual address setup */
-#define CFG_CMD_CONFIGURE 0x0002 /* configure */
-
-#define CFG_STATUS_C 0x8000
-#define CFG_STATUS_OK 0x2000
-
- /* Misc.
- */
-#define NUM_RX_DESC PKTBUFSRX
-#define NUM_TX_DESC 1 /* Number of TX descriptors */
-
-#define TOUT_LOOP 1000000
-
-#define ETH_ALEN 6
-
-static struct RxFD rx_ring[NUM_RX_DESC]; /* RX descriptor ring */
-static struct TxFD tx_ring[NUM_TX_DESC]; /* TX descriptor ring */
-static int rx_next; /* RX descriptor ring pointer */
-static int tx_next; /* TX descriptor ring pointer */
-static int tx_threshold;
-
-/*
- * The parameters for a CmdConfigure operation.
- * There are so many options that it would be difficult to document
- * each bit. We mostly use the default or recommended settings.
- */
-static const char i82557_config_cmd[] = {
- 22, 0x08, 0, 0, 0, 0, 0x32, 0x03, 1, /* 1=Use MII 0=Use AUI */
- 0, 0x2E, 0, 0x60, 0,
- 0xf2, 0x48, 0, 0x40, 0xf2, 0x80, /* 0x40=Force full-duplex */
- 0x3f, 0x05,
-};
-static const char i82558_config_cmd[] = {
- 22, 0x08, 0, 1, 0, 0, 0x22, 0x03, 1, /* 1=Use MII 0=Use AUI */
- 0, 0x2E, 0, 0x60, 0x08, 0x88,
- 0x68, 0, 0x40, 0xf2, 0x84, /* Disable FC */
- 0x31, 0x05,
-};
-
-static void init_rx_ring (struct eth_device *dev);
-static void purge_tx_ring (struct eth_device *dev);
-
-static void read_hw_addr (struct eth_device *dev, bd_t * bis);
-
-static int eepro100_init (struct eth_device *dev, bd_t * bis);
-static int eepro100_send (struct eth_device *dev, volatile void *packet,
- int length);
-static int eepro100_recv (struct eth_device *dev);
-static void eepro100_halt (struct eth_device *dev);
-
-#if defined(CONFIG_E500) || defined(CONFIG_DB64360) || defined(CONFIG_DB64460)
-#define bus_to_phys(a) (a)
-#define phys_to_bus(a) (a)
-#else
-#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a)
-#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a)
-#endif
-
-static inline int INW (struct eth_device *dev, u_long addr)
-{
- return le16_to_cpu (*(volatile u16 *) (addr + dev->iobase));
-}
-
-static inline void OUTW (struct eth_device *dev, int command, u_long addr)
-{
- *(volatile u16 *) ((addr + dev->iobase)) = cpu_to_le16 (command);
-}
-
-static inline void OUTL (struct eth_device *dev, int command, u_long addr)
-{
- *(volatile u32 *) ((addr + dev->iobase)) = cpu_to_le32 (command);
-}
-
-#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
-static inline int INL (struct eth_device *dev, u_long addr)
-{
- return le32_to_cpu (*(volatile u32 *) (addr + dev->iobase));
-}
-
-static int get_phyreg (struct eth_device *dev, unsigned char addr,
- unsigned char reg, unsigned short *value)
-{
- int cmd;
- int timeout = 50;
-
- /* read requested data */
- cmd = (2 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
- OUTL (dev, cmd, SCBCtrlMDI);
-
- do {
- udelay(1000);
- cmd = INL (dev, SCBCtrlMDI);
- } while (!(cmd & (1 << 28)) && (--timeout));
-
- if (timeout == 0)
- return -1;
-
- *value = (unsigned short) (cmd & 0xffff);
-
- return 0;
-}
-
-static int set_phyreg (struct eth_device *dev, unsigned char addr,
- unsigned char reg, unsigned short value)
-{
- int cmd;
- int timeout = 50;
-
- /* write requested data */
- cmd = (1 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
- OUTL (dev, cmd | value, SCBCtrlMDI);
-
- while (!(INL (dev, SCBCtrlMDI) & (1 << 28)) && (--timeout))
- udelay(1000);
-
- if (timeout == 0)
- return -1;
-
- return 0;
-}
-
-/* Check if given phyaddr is valid, i.e. there is a PHY connected.
- * Do this by checking model value field from ID2 register.
- */
-static struct eth_device* verify_phyaddr (char *devname, unsigned char addr)
-{
- struct eth_device *dev;
- unsigned short value;
- unsigned char model;
-
- dev = eth_get_dev_by_name(devname);
- if (dev == NULL) {
- printf("%s: no such device\n", devname);
- return NULL;
- }
-
- /* read id2 register */
- if (get_phyreg(dev, addr, PHY_PHYIDR2, &value) != 0) {
- printf("%s: mii read timeout!\n", devname);
- return NULL;
- }
-
- /* get model */
- model = (unsigned char)((value >> 4) & 0x003f);
-
- if (model == 0) {
- printf("%s: no PHY at address %d\n", devname, addr);
- return NULL;
- }
-
- return dev;
-}
-
-static int eepro100_miiphy_read (char *devname, unsigned char addr,
- unsigned char reg, unsigned short *value)
-{
- struct eth_device *dev;
-
- dev = verify_phyaddr(devname, addr);
- if (dev == NULL)
- return -1;
-
- if (get_phyreg(dev, addr, reg, value) != 0) {
- printf("%s: mii read timeout!\n", devname);
- return -1;
- }
-
- return 0;
-}
-
-static int eepro100_miiphy_write (char *devname, unsigned char addr,
- unsigned char reg, unsigned short value)
-{
- struct eth_device *dev;
-
- dev = verify_phyaddr(devname, addr);
- if (dev == NULL)
- return -1;
-
- if (set_phyreg(dev, addr, reg, value) != 0) {
- printf("%s: mii write timeout!\n", devname);
- return -1;
- }
-
- return 0;
-}
-
-#endif
-
-/* Wait for the chip get the command.
-*/
-static int wait_for_eepro100 (struct eth_device *dev)
-{
- int i;
-
- for (i = 0; INW (dev, SCBCmd) & (CU_CMD_MASK | RU_CMD_MASK); i++) {
- if (i >= TOUT_LOOP) {
- return 0;
- }
- }
-
- return 1;
-}
-
-static struct pci_device_id supported[] = {
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82557},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559ER},
- {}
-};
-
-int eepro100_initialize (bd_t * bis)
-{
- pci_dev_t devno;
- int card_number = 0;
- struct eth_device *dev;
- u32 iobase, status;
- int idx = 0;
-
- while (1) {
- /* Find PCI device
- */
- if ((devno = pci_find_devices (supported, idx++)) < 0) {
- break;
- }
-
- pci_read_config_dword (devno, PCI_BASE_ADDRESS_0, &iobase);
- iobase &= ~0xf;
-
-#ifdef DEBUG
- printf ("eepro100: Intel i82559 PCI EtherExpressPro @0x%x\n",
- iobase);
-#endif
-
- pci_write_config_dword (devno,
- PCI_COMMAND,
- PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
-
- /* Check if I/O accesses and Bus Mastering are enabled.
- */
- pci_read_config_dword (devno, PCI_COMMAND, &status);
- if (!(status & PCI_COMMAND_MEMORY)) {
- printf ("Error: Can not enable MEM access.\n");
- continue;
- }
-
- if (!(status & PCI_COMMAND_MASTER)) {
- printf ("Error: Can not enable Bus Mastering.\n");
- continue;
- }
-
- dev = (struct eth_device *) malloc (sizeof *dev);
-
- sprintf (dev->name, "i82559#%d", card_number);
- dev->priv = (void *) devno; /* this have to come before bus_to_phys() */
- dev->iobase = bus_to_phys (iobase);
- dev->init = eepro100_init;
- dev->halt = eepro100_halt;
- dev->send = eepro100_send;
- dev->recv = eepro100_recv;
-
- eth_register (dev);
-
-#if defined (CONFIG_MII) || defined(CONFIG_CMD_MII)
- /* register mii command access routines */
- miiphy_register(dev->name,
- eepro100_miiphy_read, eepro100_miiphy_write);
-#endif
-
- card_number++;
-
- /* Set the latency timer for value.
- */
- pci_write_config_byte (devno, PCI_LATENCY_TIMER, 0x20);
-
- udelay (10 * 1000);
-
- read_hw_addr (dev, bis);
- }
-
- return card_number;
-}
-
-
-static int eepro100_init (struct eth_device *dev, bd_t * bis)
-{
- int i, status = 0;
- int tx_cur;
- struct descriptor *ias_cmd, *cfg_cmd;
-
- /* Reset the ethernet controller
- */
- OUTL (dev, I82559_SELECTIVE_RESET, SCBPort);
- udelay (20);
-
- OUTL (dev, I82559_RESET, SCBPort);
- udelay (20);
-
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not reset ethernet controller.\n");
- goto Done;
- }
- OUTL (dev, 0, SCBPointer);
- OUTW (dev, SCB_M | RUC_ADDR_LOAD, SCBCmd);
-
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not reset ethernet controller.\n");
- goto Done;
- }
- OUTL (dev, 0, SCBPointer);
- OUTW (dev, SCB_M | CU_ADDR_LOAD, SCBCmd);
-
- /* Initialize Rx and Tx rings.
- */
- init_rx_ring (dev);
- purge_tx_ring (dev);
-
- /* Tell the adapter where the RX ring is located.
- */
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not reset ethernet controller.\n");
- goto Done;
- }
-
- OUTL (dev, phys_to_bus ((u32) & rx_ring[rx_next]), SCBPointer);
- OUTW (dev, SCB_M | RUC_START, SCBCmd);
-
- /* Send the Configure frame */
- tx_cur = tx_next;
- tx_next = ((tx_next + 1) % NUM_TX_DESC);
-
- cfg_cmd = (struct descriptor *) &tx_ring[tx_cur];
- cfg_cmd->command = cpu_to_le16 ((CFG_CMD_SUSPEND | CFG_CMD_CONFIGURE));
- cfg_cmd->status = 0;
- cfg_cmd->link = cpu_to_le32 (phys_to_bus ((u32) & tx_ring[tx_next]));
-
- memcpy (cfg_cmd->params, i82558_config_cmd,
- sizeof (i82558_config_cmd));
-
- if (!wait_for_eepro100 (dev)) {
- printf ("Error---CFG_CMD_CONFIGURE: Can not reset ethernet controller.\n");
- goto Done;
- }
-
- OUTL (dev, phys_to_bus ((u32) & tx_ring[tx_cur]), SCBPointer);
- OUTW (dev, SCB_M | CU_START, SCBCmd);
-
- for (i = 0;
- !(le16_to_cpu (tx_ring[tx_cur].status) & CFG_STATUS_C);
- i++) {
- if (i >= TOUT_LOOP) {
- printf ("%s: Tx error buffer not ready\n", dev->name);
- goto Done;
- }
- }
-
- if (!(le16_to_cpu (tx_ring[tx_cur].status) & CFG_STATUS_OK)) {
- printf ("TX error status = 0x%08X\n",
- le16_to_cpu (tx_ring[tx_cur].status));
- goto Done;
- }
-
- /* Send the Individual Address Setup frame
- */
- tx_cur = tx_next;
- tx_next = ((tx_next + 1) % NUM_TX_DESC);
-
- ias_cmd = (struct descriptor *) &tx_ring[tx_cur];
- ias_cmd->command = cpu_to_le16 ((CFG_CMD_SUSPEND | CFG_CMD_IAS));
- ias_cmd->status = 0;
- ias_cmd->link = cpu_to_le32 (phys_to_bus ((u32) & tx_ring[tx_next]));
-
- memcpy (ias_cmd->params, dev->enetaddr, 6);
-
- /* Tell the adapter where the TX ring is located.
- */
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not reset ethernet controller.\n");
- goto Done;
- }
-
- OUTL (dev, phys_to_bus ((u32) & tx_ring[tx_cur]), SCBPointer);
- OUTW (dev, SCB_M | CU_START, SCBCmd);
-
- for (i = 0; !(le16_to_cpu (tx_ring[tx_cur].status) & CFG_STATUS_C);
- i++) {
- if (i >= TOUT_LOOP) {
- printf ("%s: Tx error buffer not ready\n",
- dev->name);
- goto Done;
- }
- }
-
- if (!(le16_to_cpu (tx_ring[tx_cur].status) & CFG_STATUS_OK)) {
- printf ("TX error status = 0x%08X\n",
- le16_to_cpu (tx_ring[tx_cur].status));
- goto Done;
- }
-
- status = 1;
-
- Done:
- return status;
-}
-
-static int eepro100_send (struct eth_device *dev, volatile void *packet, int length)
-{
- int i, status = -1;
- int tx_cur;
-
- if (length <= 0) {
- printf ("%s: bad packet size: %d\n", dev->name, length);
- goto Done;
- }
-
- tx_cur = tx_next;
- tx_next = (tx_next + 1) % NUM_TX_DESC;
-
- tx_ring[tx_cur].command = cpu_to_le16 ( TxCB_CMD_TRANSMIT |
- TxCB_CMD_SF |
- TxCB_CMD_S |
- TxCB_CMD_EL );
- tx_ring[tx_cur].status = 0;
- tx_ring[tx_cur].count = cpu_to_le32 (tx_threshold);
- tx_ring[tx_cur].link =
- cpu_to_le32 (phys_to_bus ((u32) & tx_ring[tx_next]));
- tx_ring[tx_cur].tx_desc_addr =
- cpu_to_le32 (phys_to_bus ((u32) & tx_ring[tx_cur].tx_buf_addr0));
- tx_ring[tx_cur].tx_buf_addr0 =
- cpu_to_le32 (phys_to_bus ((u_long) packet));
- tx_ring[tx_cur].tx_buf_size0 = cpu_to_le32 (length);
-
- if (!wait_for_eepro100 (dev)) {
- printf ("%s: Tx error ethernet controller not ready.\n",
- dev->name);
- goto Done;
- }
-
- /* Send the packet.
- */
- OUTL (dev, phys_to_bus ((u32) & tx_ring[tx_cur]), SCBPointer);
- OUTW (dev, SCB_M | CU_START, SCBCmd);
-
- for (i = 0; !(le16_to_cpu (tx_ring[tx_cur].status) & CFG_STATUS_C);
- i++) {
- if (i >= TOUT_LOOP) {
- printf ("%s: Tx error buffer not ready\n", dev->name);
- goto Done;
- }
- }
-
- if (!(le16_to_cpu (tx_ring[tx_cur].status) & CFG_STATUS_OK)) {
- printf ("TX error status = 0x%08X\n",
- le16_to_cpu (tx_ring[tx_cur].status));
- goto Done;
- }
-
- status = length;
-
- Done:
- return status;
-}
-
-static int eepro100_recv (struct eth_device *dev)
-{
- u16 status, stat;
- int rx_prev, length = 0;
-
- stat = INW (dev, SCBStatus);
- OUTW (dev, stat & SCB_STATUS_RNR, SCBStatus);
-
- for (;;) {
- status = le16_to_cpu (rx_ring[rx_next].status);
-
- if (!(status & RFD_STATUS_C)) {
- break;
- }
-
- /* Valid frame status.
- */
- if ((status & RFD_STATUS_OK)) {
- /* A valid frame received.
- */
- length = le32_to_cpu (rx_ring[rx_next].count) & 0x3fff;
-
- /* Pass the packet up to the protocol
- * layers.
- */
- NetReceive (rx_ring[rx_next].data, length);
- } else {
- /* There was an error.
- */
- printf ("RX error status = 0x%08X\n", status);
- }
-
- rx_ring[rx_next].control = cpu_to_le16 (RFD_CONTROL_S);
- rx_ring[rx_next].status = 0;
- rx_ring[rx_next].count = cpu_to_le32 (PKTSIZE_ALIGN << 16);
-
- rx_prev = (rx_next + NUM_RX_DESC - 1) % NUM_RX_DESC;
- rx_ring[rx_prev].control = 0;
-
- /* Update entry information.
- */
- rx_next = (rx_next + 1) % NUM_RX_DESC;
- }
-
- if (stat & SCB_STATUS_RNR) {
-
- printf ("%s: Receiver is not ready, restart it !\n", dev->name);
-
- /* Reinitialize Rx ring.
- */
- init_rx_ring (dev);
-
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not restart ethernet controller.\n");
- goto Done;
- }
-
- OUTL (dev, phys_to_bus ((u32) & rx_ring[rx_next]), SCBPointer);
- OUTW (dev, SCB_M | RUC_START, SCBCmd);
- }
-
- Done:
- return length;
-}
-
-static void eepro100_halt (struct eth_device *dev)
-{
- /* Reset the ethernet controller
- */
- OUTL (dev, I82559_SELECTIVE_RESET, SCBPort);
- udelay (20);
-
- OUTL (dev, I82559_RESET, SCBPort);
- udelay (20);
-
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not reset ethernet controller.\n");
- goto Done;
- }
- OUTL (dev, 0, SCBPointer);
- OUTW (dev, SCB_M | RUC_ADDR_LOAD, SCBCmd);
-
- if (!wait_for_eepro100 (dev)) {
- printf ("Error: Can not reset ethernet controller.\n");
- goto Done;
- }
- OUTL (dev, 0, SCBPointer);
- OUTW (dev, SCB_M | CU_ADDR_LOAD, SCBCmd);
-
- Done:
- return;
-}
-
- /* SROM Read.
- */
-static int read_eeprom (struct eth_device *dev, int location, int addr_len)
-{
- unsigned short retval = 0;
- int read_cmd = location | EE_READ_CMD;
- int i;
-
- OUTW (dev, EE_ENB & ~EE_CS, SCBeeprom);
- OUTW (dev, EE_ENB, SCBeeprom);
-
- /* Shift the read command bits out. */
- for (i = 12; i >= 0; i--) {
- short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
-
- OUTW (dev, EE_ENB | dataval, SCBeeprom);
- udelay (1);
- OUTW (dev, EE_ENB | dataval | EE_SHIFT_CLK, SCBeeprom);
- udelay (1);
- }
- OUTW (dev, EE_ENB, SCBeeprom);
-
- for (i = 15; i >= 0; i--) {
- OUTW (dev, EE_ENB | EE_SHIFT_CLK, SCBeeprom);
- udelay (1);
- retval = (retval << 1) |
- ((INW (dev, SCBeeprom) & EE_DATA_READ) ? 1 : 0);
- OUTW (dev, EE_ENB, SCBeeprom);
- udelay (1);
- }
-
- /* Terminate the EEPROM access. */
- OUTW (dev, EE_ENB & ~EE_CS, SCBeeprom);
- return retval;
-}
-
-#ifdef CONFIG_EEPRO100_SROM_WRITE
-int eepro100_write_eeprom (struct eth_device* dev, int location, int addr_len, unsigned short data)
-{
- unsigned short dataval;
- int enable_cmd = 0x3f | EE_EWENB_CMD;
- int write_cmd = location | EE_WRITE_CMD;
- int i;
- unsigned long datalong, tmplong;
-
- OUTW(dev, EE_ENB & ~EE_CS, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB, SCBeeprom);
-
- /* Shift the enable command bits out. */
- for (i = (addr_len+EE_CMD_BITS-1); i >= 0; i--)
- {
- dataval = (enable_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- OUTW(dev, EE_ENB | dataval, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB | dataval | EE_SHIFT_CLK, SCBeeprom);
- udelay(1);
- }
-
- OUTW(dev, EE_ENB, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB & ~EE_CS, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB, SCBeeprom);
-
-
- /* Shift the write command bits out. */
- for (i = (addr_len+EE_CMD_BITS-1); i >= 0; i--)
- {
- dataval = (write_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- OUTW(dev, EE_ENB | dataval, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB | dataval | EE_SHIFT_CLK, SCBeeprom);
- udelay(1);
- }
-
- /* Write the data */
- datalong= (unsigned long) ((((data) & 0x00ff) << 8) | ( (data) >> 8));
-
- for (i = 0; i< EE_DATA_BITS; i++)
- {
- /* Extract and move data bit to bit DI */
- dataval = ((datalong & 0x8000)>>13) ? EE_DATA_WRITE : 0;
-
- OUTW(dev, EE_ENB | dataval, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB | dataval | EE_SHIFT_CLK, SCBeeprom);
- udelay(1);
- OUTW(dev, EE_ENB | dataval, SCBeeprom);
- udelay(1);
-
- datalong = datalong << 1; /* Adjust significant data bit*/
- }
-
- /* Finish up command (toggle CS) */
- OUTW(dev, EE_ENB & ~EE_CS, SCBeeprom);
- udelay(1); /* delay for more than 250 ns */
- OUTW(dev, EE_ENB, SCBeeprom);
-
- /* Wait for programming ready (D0 = 1) */
- tmplong = 10;
- do
- {
- dataval = INW(dev, SCBeeprom);
- if (dataval & EE_DATA_READ)
- break;
- udelay(10000);
- }
- while (-- tmplong);
-
- if (tmplong == 0)
- {
- printf ("Write i82559 eeprom timed out (100 ms waiting for data ready.\n");
- return -1;
- }
-
- /* Terminate the EEPROM access. */
- OUTW(dev, EE_ENB & ~EE_CS, SCBeeprom);
-
- return 0;
-}
-#endif
-
-static void init_rx_ring (struct eth_device *dev)
-{
- int i;
-
- for (i = 0; i < NUM_RX_DESC; i++) {
- rx_ring[i].status = 0;
- rx_ring[i].control =
- (i == NUM_RX_DESC - 1) ? cpu_to_le16 (RFD_CONTROL_S) : 0;
- rx_ring[i].link =
- cpu_to_le32 (phys_to_bus
- ((u32) & rx_ring[(i + 1) % NUM_RX_DESC]));
- rx_ring[i].rx_buf_addr = 0xffffffff;
- rx_ring[i].count = cpu_to_le32 (PKTSIZE_ALIGN << 16);
- }
-
- rx_next = 0;
-}
-
-static void purge_tx_ring (struct eth_device *dev)
-{
- int i;
-
- tx_next = 0;
- tx_threshold = 0x01208000;
-
- for (i = 0; i < NUM_TX_DESC; i++) {
- tx_ring[i].status = 0;
- tx_ring[i].command = 0;
- tx_ring[i].link = 0;
- tx_ring[i].tx_desc_addr = 0;
- tx_ring[i].count = 0;
-
- tx_ring[i].tx_buf_addr0 = 0;
- tx_ring[i].tx_buf_size0 = 0;
- tx_ring[i].tx_buf_addr1 = 0;
- tx_ring[i].tx_buf_size1 = 0;
- }
-}
-
-static void read_hw_addr (struct eth_device *dev, bd_t * bis)
-{
- u16 eeprom[0x40];
- u16 sum = 0;
- int i, j;
- int addr_len = read_eeprom (dev, 0, 6) == 0xffff ? 8 : 6;
-
- for (j = 0, i = 0; i < 0x40; i++) {
- u16 value = read_eeprom (dev, i, addr_len);
-
- eeprom[i] = value;
- sum += value;
- if (i < 3) {
- dev->enetaddr[j++] = value;
- dev->enetaddr[j++] = value >> 8;
- }
- }
-
- if (sum != 0xBABA) {
- memset (dev->enetaddr, 0, ETH_ALEN);
-#ifdef DEBUG
- printf ("%s: Invalid EEPROM checksum %#4.4x, "
- "check settings before activating this device!\n",
- dev->name, sum);
-#endif
- }
-}
-
-#endif