3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34 /* Ethernet chip registers.
36 #define SCBStatus 0 /* Rx/Command Unit Status *Word* */
37 #define SCBIntAckByte 1 /* Rx/Command Unit STAT/ACK byte */
38 #define SCBCmd 2 /* Rx/Command Unit Command *Word* */
39 #define SCBIntrCtlByte 3 /* Rx/Command Unit Intr.Control Byte */
40 #define SCBPointer 4 /* General purpose pointer. */
41 #define SCBPort 8 /* Misc. commands and operands. */
42 #define SCBflash 12 /* Flash memory control. */
43 #define SCBeeprom 14 /* EEPROM memory control. */
44 #define SCBCtrlMDI 16 /* MDI interface control. */
45 #define SCBEarlyRx 20 /* Early receive byte count. */
46 #define SCBGenControl 28 /* 82559 General Control Register */
47 #define SCBGenStatus 29 /* 82559 General Status register */
49 /* 82559 SCB status word defnitions
51 #define SCB_STATUS_CX 0x8000 /* CU finished command (transmit) */
52 #define SCB_STATUS_FR 0x4000 /* frame received */
53 #define SCB_STATUS_CNA 0x2000 /* CU left active state */
54 #define SCB_STATUS_RNR 0x1000 /* receiver left ready state */
55 #define SCB_STATUS_MDI 0x0800 /* MDI read/write cycle done */
56 #define SCB_STATUS_SWI 0x0400 /* software generated interrupt */
57 #define SCB_STATUS_FCP 0x0100 /* flow control pause interrupt */
59 #define SCB_INTACK_MASK 0xFD00 /* all the above */
61 #define SCB_INTACK_TX (SCB_STATUS_CX | SCB_STATUS_CNA)
62 #define SCB_INTACK_RX (SCB_STATUS_FR | SCB_STATUS_RNR)
64 /* System control block commands
68 #define CU_START 0x0010
69 #define CU_RESUME 0x0020
70 #define CU_STATSADDR 0x0040 /* Load Dump Statistics ctrs addr */
71 #define CU_SHOWSTATS 0x0050 /* Dump statistics counters. */
72 #define CU_ADDR_LOAD 0x0060 /* Base address to add to CU commands */
73 #define CU_DUMPSTATS 0x0070 /* Dump then reset stats counters. */
76 #define RUC_NOP 0x0000
77 #define RUC_START 0x0001
78 #define RUC_RESUME 0x0002
79 #define RUC_ABORT 0x0004
80 #define RUC_ADDR_LOAD 0x0006 /* (seems not to clear on acceptance) */
81 #define RUC_RESUMENR 0x0007
83 #define CU_CMD_MASK 0x00f0
84 #define RU_CMD_MASK 0x0007
86 #define SCB_M 0x0100 /* 0 = enable interrupt, 1 = disable */
87 #define SCB_SWI 0x0200 /* 1 - cause device to interrupt */
89 #define CU_STATUS_MASK 0x00C0
90 #define RU_STATUS_MASK 0x003C
92 #define RU_STATUS_IDLE (0<<2)
93 #define RU_STATUS_SUS (1<<2)
94 #define RU_STATUS_NORES (2<<2)
95 #define RU_STATUS_READY (4<<2)
96 #define RU_STATUS_NO_RBDS_SUS ((1<<2)|(8<<2))
97 #define RU_STATUS_NO_RBDS_NORES ((2<<2)|(8<<2))
98 #define RU_STATUS_NO_RBDS_READY ((4<<2)|(8<<2))
100 /* 82559 Port interface commands.
102 #define I82559_RESET 0x00000000 /* Software reset */
103 #define I82559_SELFTEST 0x00000001 /* 82559 Selftest command */
104 #define I82559_SELECTIVE_RESET 0x00000002
105 #define I82559_DUMP 0x00000003
106 #define I82559_DUMP_WAKEUP 0x00000007
108 /* 82559 Eeprom interface.
110 #define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */
111 #define EE_CS 0x02 /* EEPROM chip select. */
112 #define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
113 #define EE_WRITE_0 0x01
114 #define EE_WRITE_1 0x05
115 #define EE_DATA_READ 0x08 /* EEPROM chip data out. */
116 #define EE_ENB (0x4800 | EE_CS)
117 #define EE_CMD_BITS 3
118 #define EE_DATA_BITS 16
120 /* The EEPROM commands include the alway-set leading bit.
122 #define EE_EWENB_CMD (4 << addr_len)
123 #define EE_WRITE_CMD (5 << addr_len)
124 #define EE_READ_CMD (6 << addr_len)
125 #define EE_ERASE_CMD (7 << addr_len)
127 /* Receive frame descriptors.
131 volatile u16 control
;
132 volatile u32 link
; /* struct RxFD * */
133 volatile u32 rx_buf_addr
; /* void * */
136 volatile u8 data
[PKTSIZE_ALIGN
];
139 #define RFD_STATUS_C 0x8000 /* completion of received frame */
140 #define RFD_STATUS_OK 0x2000 /* frame received with no errors */
142 #define RFD_CONTROL_EL 0x8000 /* 1=last RFD in RFA */
143 #define RFD_CONTROL_S 0x4000 /* 1=suspend RU after receiving frame */
144 #define RFD_CONTROL_H 0x0010 /* 1=RFD is a header RFD */
145 #define RFD_CONTROL_SF 0x0008 /* 0=simplified, 1=flexible mode */
147 #define RFD_COUNT_MASK 0x3fff
148 #define RFD_COUNT_F 0x4000
149 #define RFD_COUNT_EOF 0x8000
151 #define RFD_RX_CRC 0x0800 /* crc error */
152 #define RFD_RX_ALIGNMENT 0x0400 /* alignment error */
153 #define RFD_RX_RESOURCE 0x0200 /* out of space, no resources */
154 #define RFD_RX_DMA_OVER 0x0100 /* DMA overrun */
155 #define RFD_RX_SHORT 0x0080 /* short frame error */
156 #define RFD_RX_LENGTH 0x0020
157 #define RFD_RX_ERROR 0x0010 /* receive error */
158 #define RFD_RX_NO_ADR_MATCH 0x0004 /* no address match */
159 #define RFD_RX_IA_MATCH 0x0002 /* individual address does not match */
160 #define RFD_RX_TCO 0x0001 /* TCO indication */
162 /* Transmit frame descriptors
164 struct TxFD
{ /* Transmit frame descriptor set. */
166 volatile u16 command
;
167 volatile u32 link
; /* void * */
168 volatile u32 tx_desc_addr
; /* Always points to the tx_buf_addr element. */
171 volatile u32 tx_buf_addr0
; /* void *, frame to be transmitted. */
172 volatile s32 tx_buf_size0
; /* Length of Tx frame. */
173 volatile u32 tx_buf_addr1
; /* void *, frame to be transmitted. */
174 volatile s32 tx_buf_size1
; /* Length of Tx frame. */
177 #define TxCB_CMD_TRANSMIT 0x0004 /* transmit command */
178 #define TxCB_CMD_SF 0x0008 /* 0=simplified, 1=flexible mode */
179 #define TxCB_CMD_NC 0x0010 /* 0=CRC insert by controller */
180 #define TxCB_CMD_I 0x2000 /* generate interrupt on completion */
181 #define TxCB_CMD_S 0x4000 /* suspend on completion */
182 #define TxCB_CMD_EL 0x8000 /* last command block in CBL */
184 #define TxCB_COUNT_MASK 0x3fff
185 #define TxCB_COUNT_EOF 0x8000
187 /* The Speedo3 Rx and Tx frame/buffer descriptors.
189 struct descriptor
{ /* A generic descriptor. */
191 volatile u16 command
;
192 volatile u32 link
; /* struct descriptor * */
194 unsigned char params
[0];
197 #define CONFIG_SYS_CMD_EL 0x8000
198 #define CONFIG_SYS_CMD_SUSPEND 0x4000
199 #define CONFIG_SYS_CMD_INT 0x2000
200 #define CONFIG_SYS_CMD_IAS 0x0001 /* individual address setup */
201 #define CONFIG_SYS_CMD_CONFIGURE 0x0002 /* configure */
203 #define CONFIG_SYS_STATUS_C 0x8000
204 #define CONFIG_SYS_STATUS_OK 0x2000
208 #define NUM_RX_DESC PKTBUFSRX
209 #define NUM_TX_DESC 1 /* Number of TX descriptors */
211 #define TOUT_LOOP 1000000
215 static struct RxFD rx_ring
[NUM_RX_DESC
]; /* RX descriptor ring */
216 static struct TxFD tx_ring
[NUM_TX_DESC
]; /* TX descriptor ring */
217 static int rx_next
; /* RX descriptor ring pointer */
218 static int tx_next
; /* TX descriptor ring pointer */
219 static int tx_threshold
;
222 * The parameters for a CmdConfigure operation.
223 * There are so many options that it would be difficult to document
224 * each bit. We mostly use the default or recommended settings.
226 static const char i82557_config_cmd
[] = {
227 22, 0x08, 0, 0, 0, 0, 0x32, 0x03, 1, /* 1=Use MII 0=Use AUI */
229 0xf2, 0x48, 0, 0x40, 0xf2, 0x80, /* 0x40=Force full-duplex */
232 static const char i82558_config_cmd
[] = {
233 22, 0x08, 0, 1, 0, 0, 0x22, 0x03, 1, /* 1=Use MII 0=Use AUI */
234 0, 0x2E, 0, 0x60, 0x08, 0x88,
235 0x68, 0, 0x40, 0xf2, 0x84, /* Disable FC */
239 static void init_rx_ring (struct eth_device
*dev
);
240 static void purge_tx_ring (struct eth_device
*dev
);
242 static void read_hw_addr (struct eth_device
*dev
, bd_t
* bis
);
244 static int eepro100_init (struct eth_device
*dev
, bd_t
* bis
);
245 static int eepro100_send (struct eth_device
*dev
, volatile void *packet
,
247 static int eepro100_recv (struct eth_device
*dev
);
248 static void eepro100_halt (struct eth_device
*dev
);
250 #if defined(CONFIG_E500) || defined(CONFIG_DB64360) || defined(CONFIG_DB64460)
251 #define bus_to_phys(a) (a)
252 #define phys_to_bus(a) (a)
254 #define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a)
255 #define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a)
258 static inline int INW (struct eth_device
*dev
, u_long addr
)
260 return le16_to_cpu (*(volatile u16
*) (addr
+ dev
->iobase
));
263 static inline void OUTW (struct eth_device
*dev
, int command
, u_long addr
)
265 *(volatile u16
*) ((addr
+ dev
->iobase
)) = cpu_to_le16 (command
);
268 static inline void OUTL (struct eth_device
*dev
, int command
, u_long addr
)
270 *(volatile u32
*) ((addr
+ dev
->iobase
)) = cpu_to_le32 (command
);
273 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
274 static inline int INL (struct eth_device
*dev
, u_long addr
)
276 return le32_to_cpu (*(volatile u32
*) (addr
+ dev
->iobase
));
279 static int get_phyreg (struct eth_device
*dev
, unsigned char addr
,
280 unsigned char reg
, unsigned short *value
)
285 /* read requested data */
286 cmd
= (2 << 26) | ((addr
& 0x1f) << 21) | ((reg
& 0x1f) << 16);
287 OUTL (dev
, cmd
, SCBCtrlMDI
);
291 cmd
= INL (dev
, SCBCtrlMDI
);
292 } while (!(cmd
& (1 << 28)) && (--timeout
));
297 *value
= (unsigned short) (cmd
& 0xffff);
302 static int set_phyreg (struct eth_device
*dev
, unsigned char addr
,
303 unsigned char reg
, unsigned short value
)
308 /* write requested data */
309 cmd
= (1 << 26) | ((addr
& 0x1f) << 21) | ((reg
& 0x1f) << 16);
310 OUTL (dev
, cmd
| value
, SCBCtrlMDI
);
312 while (!(INL (dev
, SCBCtrlMDI
) & (1 << 28)) && (--timeout
))
321 /* Check if given phyaddr is valid, i.e. there is a PHY connected.
322 * Do this by checking model value field from ID2 register.
324 static struct eth_device
* verify_phyaddr (const char *devname
,
327 struct eth_device
*dev
;
328 unsigned short value
;
331 dev
= eth_get_dev_by_name(devname
);
333 printf("%s: no such device\n", devname
);
337 /* read id2 register */
338 if (get_phyreg(dev
, addr
, MII_PHYSID2
, &value
) != 0) {
339 printf("%s: mii read timeout!\n", devname
);
344 model
= (unsigned char)((value
>> 4) & 0x003f);
347 printf("%s: no PHY at address %d\n", devname
, addr
);
354 static int eepro100_miiphy_read(const char *devname
, unsigned char addr
,
355 unsigned char reg
, unsigned short *value
)
357 struct eth_device
*dev
;
359 dev
= verify_phyaddr(devname
, addr
);
363 if (get_phyreg(dev
, addr
, reg
, value
) != 0) {
364 printf("%s: mii read timeout!\n", devname
);
371 static int eepro100_miiphy_write(const char *devname
, unsigned char addr
,
372 unsigned char reg
, unsigned short value
)
374 struct eth_device
*dev
;
376 dev
= verify_phyaddr(devname
, addr
);
380 if (set_phyreg(dev
, addr
, reg
, value
) != 0) {
381 printf("%s: mii write timeout!\n", devname
);
390 /* Wait for the chip get the command.
392 static int wait_for_eepro100 (struct eth_device
*dev
)
396 for (i
= 0; INW (dev
, SCBCmd
) & (CU_CMD_MASK
| RU_CMD_MASK
); i
++) {
397 if (i
>= TOUT_LOOP
) {
405 static struct pci_device_id supported
[] = {
406 {PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_INTEL_82557
},
407 {PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_INTEL_82559
},
408 {PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_INTEL_82559ER
},
412 int eepro100_initialize (bd_t
* bis
)
416 struct eth_device
*dev
;
423 if ((devno
= pci_find_devices (supported
, idx
++)) < 0) {
427 pci_read_config_dword (devno
, PCI_BASE_ADDRESS_0
, &iobase
);
431 printf ("eepro100: Intel i82559 PCI EtherExpressPro @0x%x\n",
435 pci_write_config_dword (devno
,
437 PCI_COMMAND_MEMORY
| PCI_COMMAND_MASTER
);
439 /* Check if I/O accesses and Bus Mastering are enabled.
441 pci_read_config_dword (devno
, PCI_COMMAND
, &status
);
442 if (!(status
& PCI_COMMAND_MEMORY
)) {
443 printf ("Error: Can not enable MEM access.\n");
447 if (!(status
& PCI_COMMAND_MASTER
)) {
448 printf ("Error: Can not enable Bus Mastering.\n");
452 dev
= (struct eth_device
*) malloc (sizeof *dev
);
454 printf("eepro100: Can not allocate memory\n");
457 memset(dev
, 0, sizeof(*dev
));
459 sprintf (dev
->name
, "i82559#%d", card_number
);
460 dev
->priv
= (void *) devno
; /* this have to come before bus_to_phys() */
461 dev
->iobase
= bus_to_phys (iobase
);
462 dev
->init
= eepro100_init
;
463 dev
->halt
= eepro100_halt
;
464 dev
->send
= eepro100_send
;
465 dev
->recv
= eepro100_recv
;
469 #if defined (CONFIG_MII) || defined(CONFIG_CMD_MII)
470 /* register mii command access routines */
471 miiphy_register(dev
->name
,
472 eepro100_miiphy_read
, eepro100_miiphy_write
);
477 /* Set the latency timer for value.
479 pci_write_config_byte (devno
, PCI_LATENCY_TIMER
, 0x20);
483 read_hw_addr (dev
, bis
);
490 static int eepro100_init (struct eth_device
*dev
, bd_t
* bis
)
494 struct descriptor
*ias_cmd
, *cfg_cmd
;
496 /* Reset the ethernet controller
498 OUTL (dev
, I82559_SELECTIVE_RESET
, SCBPort
);
501 OUTL (dev
, I82559_RESET
, SCBPort
);
504 if (!wait_for_eepro100 (dev
)) {
505 printf ("Error: Can not reset ethernet controller.\n");
508 OUTL (dev
, 0, SCBPointer
);
509 OUTW (dev
, SCB_M
| RUC_ADDR_LOAD
, SCBCmd
);
511 if (!wait_for_eepro100 (dev
)) {
512 printf ("Error: Can not reset ethernet controller.\n");
515 OUTL (dev
, 0, SCBPointer
);
516 OUTW (dev
, SCB_M
| CU_ADDR_LOAD
, SCBCmd
);
518 /* Initialize Rx and Tx rings.
523 /* Tell the adapter where the RX ring is located.
525 if (!wait_for_eepro100 (dev
)) {
526 printf ("Error: Can not reset ethernet controller.\n");
530 OUTL (dev
, phys_to_bus ((u32
) & rx_ring
[rx_next
]), SCBPointer
);
531 OUTW (dev
, SCB_M
| RUC_START
, SCBCmd
);
533 /* Send the Configure frame */
535 tx_next
= ((tx_next
+ 1) % NUM_TX_DESC
);
537 cfg_cmd
= (struct descriptor
*) &tx_ring
[tx_cur
];
538 cfg_cmd
->command
= cpu_to_le16 ((CONFIG_SYS_CMD_SUSPEND
| CONFIG_SYS_CMD_CONFIGURE
));
540 cfg_cmd
->link
= cpu_to_le32 (phys_to_bus ((u32
) & tx_ring
[tx_next
]));
542 memcpy (cfg_cmd
->params
, i82558_config_cmd
,
543 sizeof (i82558_config_cmd
));
545 if (!wait_for_eepro100 (dev
)) {
546 printf ("Error---CONFIG_SYS_CMD_CONFIGURE: Can not reset ethernet controller.\n");
550 OUTL (dev
, phys_to_bus ((u32
) & tx_ring
[tx_cur
]), SCBPointer
);
551 OUTW (dev
, SCB_M
| CU_START
, SCBCmd
);
554 !(le16_to_cpu (tx_ring
[tx_cur
].status
) & CONFIG_SYS_STATUS_C
);
556 if (i
>= TOUT_LOOP
) {
557 printf ("%s: Tx error buffer not ready\n", dev
->name
);
562 if (!(le16_to_cpu (tx_ring
[tx_cur
].status
) & CONFIG_SYS_STATUS_OK
)) {
563 printf ("TX error status = 0x%08X\n",
564 le16_to_cpu (tx_ring
[tx_cur
].status
));
568 /* Send the Individual Address Setup frame
571 tx_next
= ((tx_next
+ 1) % NUM_TX_DESC
);
573 ias_cmd
= (struct descriptor
*) &tx_ring
[tx_cur
];
574 ias_cmd
->command
= cpu_to_le16 ((CONFIG_SYS_CMD_SUSPEND
| CONFIG_SYS_CMD_IAS
));
576 ias_cmd
->link
= cpu_to_le32 (phys_to_bus ((u32
) & tx_ring
[tx_next
]));
578 memcpy (ias_cmd
->params
, dev
->enetaddr
, 6);
580 /* Tell the adapter where the TX ring is located.
582 if (!wait_for_eepro100 (dev
)) {
583 printf ("Error: Can not reset ethernet controller.\n");
587 OUTL (dev
, phys_to_bus ((u32
) & tx_ring
[tx_cur
]), SCBPointer
);
588 OUTW (dev
, SCB_M
| CU_START
, SCBCmd
);
590 for (i
= 0; !(le16_to_cpu (tx_ring
[tx_cur
].status
) & CONFIG_SYS_STATUS_C
);
592 if (i
>= TOUT_LOOP
) {
593 printf ("%s: Tx error buffer not ready\n",
599 if (!(le16_to_cpu (tx_ring
[tx_cur
].status
) & CONFIG_SYS_STATUS_OK
)) {
600 printf ("TX error status = 0x%08X\n",
601 le16_to_cpu (tx_ring
[tx_cur
].status
));
611 static int eepro100_send (struct eth_device
*dev
, volatile void *packet
, int length
)
617 printf ("%s: bad packet size: %d\n", dev
->name
, length
);
622 tx_next
= (tx_next
+ 1) % NUM_TX_DESC
;
624 tx_ring
[tx_cur
].command
= cpu_to_le16 ( TxCB_CMD_TRANSMIT
|
628 tx_ring
[tx_cur
].status
= 0;
629 tx_ring
[tx_cur
].count
= cpu_to_le32 (tx_threshold
);
630 tx_ring
[tx_cur
].link
=
631 cpu_to_le32 (phys_to_bus ((u32
) & tx_ring
[tx_next
]));
632 tx_ring
[tx_cur
].tx_desc_addr
=
633 cpu_to_le32 (phys_to_bus ((u32
) & tx_ring
[tx_cur
].tx_buf_addr0
));
634 tx_ring
[tx_cur
].tx_buf_addr0
=
635 cpu_to_le32 (phys_to_bus ((u_long
) packet
));
636 tx_ring
[tx_cur
].tx_buf_size0
= cpu_to_le32 (length
);
638 if (!wait_for_eepro100 (dev
)) {
639 printf ("%s: Tx error ethernet controller not ready.\n",
646 OUTL (dev
, phys_to_bus ((u32
) & tx_ring
[tx_cur
]), SCBPointer
);
647 OUTW (dev
, SCB_M
| CU_START
, SCBCmd
);
649 for (i
= 0; !(le16_to_cpu (tx_ring
[tx_cur
].status
) & CONFIG_SYS_STATUS_C
);
651 if (i
>= TOUT_LOOP
) {
652 printf ("%s: Tx error buffer not ready\n", dev
->name
);
657 if (!(le16_to_cpu (tx_ring
[tx_cur
].status
) & CONFIG_SYS_STATUS_OK
)) {
658 printf ("TX error status = 0x%08X\n",
659 le16_to_cpu (tx_ring
[tx_cur
].status
));
669 static int eepro100_recv (struct eth_device
*dev
)
672 int rx_prev
, length
= 0;
674 stat
= INW (dev
, SCBStatus
);
675 OUTW (dev
, stat
& SCB_STATUS_RNR
, SCBStatus
);
678 status
= le16_to_cpu (rx_ring
[rx_next
].status
);
680 if (!(status
& RFD_STATUS_C
)) {
684 /* Valid frame status.
686 if ((status
& RFD_STATUS_OK
)) {
687 /* A valid frame received.
689 length
= le32_to_cpu (rx_ring
[rx_next
].count
) & 0x3fff;
691 /* Pass the packet up to the protocol
694 NetReceive (rx_ring
[rx_next
].data
, length
);
696 /* There was an error.
698 printf ("RX error status = 0x%08X\n", status
);
701 rx_ring
[rx_next
].control
= cpu_to_le16 (RFD_CONTROL_S
);
702 rx_ring
[rx_next
].status
= 0;
703 rx_ring
[rx_next
].count
= cpu_to_le32 (PKTSIZE_ALIGN
<< 16);
705 rx_prev
= (rx_next
+ NUM_RX_DESC
- 1) % NUM_RX_DESC
;
706 rx_ring
[rx_prev
].control
= 0;
708 /* Update entry information.
710 rx_next
= (rx_next
+ 1) % NUM_RX_DESC
;
713 if (stat
& SCB_STATUS_RNR
) {
715 printf ("%s: Receiver is not ready, restart it !\n", dev
->name
);
717 /* Reinitialize Rx ring.
721 if (!wait_for_eepro100 (dev
)) {
722 printf ("Error: Can not restart ethernet controller.\n");
726 OUTL (dev
, phys_to_bus ((u32
) & rx_ring
[rx_next
]), SCBPointer
);
727 OUTW (dev
, SCB_M
| RUC_START
, SCBCmd
);
734 static void eepro100_halt (struct eth_device
*dev
)
736 /* Reset the ethernet controller
738 OUTL (dev
, I82559_SELECTIVE_RESET
, SCBPort
);
741 OUTL (dev
, I82559_RESET
, SCBPort
);
744 if (!wait_for_eepro100 (dev
)) {
745 printf ("Error: Can not reset ethernet controller.\n");
748 OUTL (dev
, 0, SCBPointer
);
749 OUTW (dev
, SCB_M
| RUC_ADDR_LOAD
, SCBCmd
);
751 if (!wait_for_eepro100 (dev
)) {
752 printf ("Error: Can not reset ethernet controller.\n");
755 OUTL (dev
, 0, SCBPointer
);
756 OUTW (dev
, SCB_M
| CU_ADDR_LOAD
, SCBCmd
);
764 static int read_eeprom (struct eth_device
*dev
, int location
, int addr_len
)
766 unsigned short retval
= 0;
767 int read_cmd
= location
| EE_READ_CMD
;
770 OUTW (dev
, EE_ENB
& ~EE_CS
, SCBeeprom
);
771 OUTW (dev
, EE_ENB
, SCBeeprom
);
773 /* Shift the read command bits out. */
774 for (i
= 12; i
>= 0; i
--) {
775 short dataval
= (read_cmd
& (1 << i
)) ? EE_DATA_WRITE
: 0;
777 OUTW (dev
, EE_ENB
| dataval
, SCBeeprom
);
779 OUTW (dev
, EE_ENB
| dataval
| EE_SHIFT_CLK
, SCBeeprom
);
782 OUTW (dev
, EE_ENB
, SCBeeprom
);
784 for (i
= 15; i
>= 0; i
--) {
785 OUTW (dev
, EE_ENB
| EE_SHIFT_CLK
, SCBeeprom
);
787 retval
= (retval
<< 1) |
788 ((INW (dev
, SCBeeprom
) & EE_DATA_READ
) ? 1 : 0);
789 OUTW (dev
, EE_ENB
, SCBeeprom
);
793 /* Terminate the EEPROM access. */
794 OUTW (dev
, EE_ENB
& ~EE_CS
, SCBeeprom
);
798 #ifdef CONFIG_EEPRO100_SROM_WRITE
799 int eepro100_write_eeprom (struct eth_device
* dev
, int location
, int addr_len
, unsigned short data
)
801 unsigned short dataval
;
802 int enable_cmd
= 0x3f | EE_EWENB_CMD
;
803 int write_cmd
= location
| EE_WRITE_CMD
;
805 unsigned long datalong
, tmplong
;
807 OUTW(dev
, EE_ENB
& ~EE_CS
, SCBeeprom
);
809 OUTW(dev
, EE_ENB
, SCBeeprom
);
811 /* Shift the enable command bits out. */
812 for (i
= (addr_len
+EE_CMD_BITS
-1); i
>= 0; i
--)
814 dataval
= (enable_cmd
& (1 << i
)) ? EE_DATA_WRITE
: 0;
815 OUTW(dev
, EE_ENB
| dataval
, SCBeeprom
);
817 OUTW(dev
, EE_ENB
| dataval
| EE_SHIFT_CLK
, SCBeeprom
);
821 OUTW(dev
, EE_ENB
, SCBeeprom
);
823 OUTW(dev
, EE_ENB
& ~EE_CS
, SCBeeprom
);
825 OUTW(dev
, EE_ENB
, SCBeeprom
);
828 /* Shift the write command bits out. */
829 for (i
= (addr_len
+EE_CMD_BITS
-1); i
>= 0; i
--)
831 dataval
= (write_cmd
& (1 << i
)) ? EE_DATA_WRITE
: 0;
832 OUTW(dev
, EE_ENB
| dataval
, SCBeeprom
);
834 OUTW(dev
, EE_ENB
| dataval
| EE_SHIFT_CLK
, SCBeeprom
);
839 datalong
= (unsigned long) ((((data
) & 0x00ff) << 8) | ( (data
) >> 8));
841 for (i
= 0; i
< EE_DATA_BITS
; i
++)
843 /* Extract and move data bit to bit DI */
844 dataval
= ((datalong
& 0x8000)>>13) ? EE_DATA_WRITE
: 0;
846 OUTW(dev
, EE_ENB
| dataval
, SCBeeprom
);
848 OUTW(dev
, EE_ENB
| dataval
| EE_SHIFT_CLK
, SCBeeprom
);
850 OUTW(dev
, EE_ENB
| dataval
, SCBeeprom
);
853 datalong
= datalong
<< 1; /* Adjust significant data bit*/
856 /* Finish up command (toggle CS) */
857 OUTW(dev
, EE_ENB
& ~EE_CS
, SCBeeprom
);
858 udelay(1); /* delay for more than 250 ns */
859 OUTW(dev
, EE_ENB
, SCBeeprom
);
861 /* Wait for programming ready (D0 = 1) */
865 dataval
= INW(dev
, SCBeeprom
);
866 if (dataval
& EE_DATA_READ
)
874 printf ("Write i82559 eeprom timed out (100 ms waiting for data ready.\n");
878 /* Terminate the EEPROM access. */
879 OUTW(dev
, EE_ENB
& ~EE_CS
, SCBeeprom
);
885 static void init_rx_ring (struct eth_device
*dev
)
889 for (i
= 0; i
< NUM_RX_DESC
; i
++) {
890 rx_ring
[i
].status
= 0;
892 (i
== NUM_RX_DESC
- 1) ? cpu_to_le16 (RFD_CONTROL_S
) : 0;
894 cpu_to_le32 (phys_to_bus
895 ((u32
) & rx_ring
[(i
+ 1) % NUM_RX_DESC
]));
896 rx_ring
[i
].rx_buf_addr
= 0xffffffff;
897 rx_ring
[i
].count
= cpu_to_le32 (PKTSIZE_ALIGN
<< 16);
903 static void purge_tx_ring (struct eth_device
*dev
)
908 tx_threshold
= 0x01208000;
910 for (i
= 0; i
< NUM_TX_DESC
; i
++) {
911 tx_ring
[i
].status
= 0;
912 tx_ring
[i
].command
= 0;
914 tx_ring
[i
].tx_desc_addr
= 0;
915 tx_ring
[i
].count
= 0;
917 tx_ring
[i
].tx_buf_addr0
= 0;
918 tx_ring
[i
].tx_buf_size0
= 0;
919 tx_ring
[i
].tx_buf_addr1
= 0;
920 tx_ring
[i
].tx_buf_size1
= 0;
924 static void read_hw_addr (struct eth_device
*dev
, bd_t
* bis
)
929 int addr_len
= read_eeprom (dev
, 0, 6) == 0xffff ? 8 : 6;
931 for (j
= 0, i
= 0; i
< 0x40; i
++) {
932 u16 value
= read_eeprom (dev
, i
, addr_len
);
937 dev
->enetaddr
[j
++] = value
;
938 dev
->enetaddr
[j
++] = value
>> 8;
943 memset (dev
->enetaddr
, 0, ETH_ALEN
);
945 printf ("%s: Invalid EEPROM checksum %#4.4x, "
946 "check settings before activating this device!\n",