772 lines
20 KiB
C
772 lines
20 KiB
C
/*
|
|
* 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>
|
|
|
|
#if defined(CONFIG_CMD_NET) \
|
|
&& defined(CONFIG_NET_MULTI) && defined(CONFIG_TULIP)
|
|
|
|
#include <malloc.h>
|
|
#include <net.h>
|
|
#include <pci.h>
|
|
|
|
#undef DEBUG_SROM
|
|
#undef DEBUG_SROM2
|
|
|
|
#undef UPDATE_SROM
|
|
|
|
/* PCI Registers.
|
|
*/
|
|
#define PCI_CFDA_PSM 0x43
|
|
|
|
#define CFRV_RN 0x000000f0 /* Revision Number */
|
|
|
|
#define WAKEUP 0x00 /* Power Saving Wakeup */
|
|
#define SLEEP 0x80 /* Power Saving Sleep Mode */
|
|
|
|
#define DC2114x_BRK 0x0020 /* CFRV break between DC21142 & DC21143 */
|
|
|
|
/* Ethernet chip registers.
|
|
*/
|
|
#define DE4X5_BMR 0x000 /* Bus Mode Register */
|
|
#define DE4X5_TPD 0x008 /* Transmit Poll Demand Reg */
|
|
#define DE4X5_RRBA 0x018 /* RX Ring Base Address Reg */
|
|
#define DE4X5_TRBA 0x020 /* TX Ring Base Address Reg */
|
|
#define DE4X5_STS 0x028 /* Status Register */
|
|
#define DE4X5_OMR 0x030 /* Operation Mode Register */
|
|
#define DE4X5_SICR 0x068 /* SIA Connectivity Register */
|
|
#define DE4X5_APROM 0x048 /* Ethernet Address PROM */
|
|
|
|
/* Register bits.
|
|
*/
|
|
#define BMR_SWR 0x00000001 /* Software Reset */
|
|
#define STS_TS 0x00700000 /* Transmit Process State */
|
|
#define STS_RS 0x000e0000 /* Receive Process State */
|
|
#define OMR_ST 0x00002000 /* Start/Stop Transmission Command */
|
|
#define OMR_SR 0x00000002 /* Start/Stop Receive */
|
|
#define OMR_PS 0x00040000 /* Port Select */
|
|
#define OMR_SDP 0x02000000 /* SD Polarity - MUST BE ASSERTED */
|
|
#define OMR_PM 0x00000080 /* Pass All Multicast */
|
|
|
|
/* Descriptor bits.
|
|
*/
|
|
#define R_OWN 0x80000000 /* Own Bit */
|
|
#define RD_RER 0x02000000 /* Receive End Of Ring */
|
|
#define RD_LS 0x00000100 /* Last Descriptor */
|
|
#define RD_ES 0x00008000 /* Error Summary */
|
|
#define TD_TER 0x02000000 /* Transmit End Of Ring */
|
|
#define T_OWN 0x80000000 /* Own Bit */
|
|
#define TD_LS 0x40000000 /* Last Segment */
|
|
#define TD_FS 0x20000000 /* First Segment */
|
|
#define TD_ES 0x00008000 /* Error Summary */
|
|
#define TD_SET 0x08000000 /* Setup Packet */
|
|
|
|
/* The EEPROM commands include the alway-set leading bit. */
|
|
#define SROM_WRITE_CMD 5
|
|
#define SROM_READ_CMD 6
|
|
#define SROM_ERASE_CMD 7
|
|
|
|
#define SROM_HWADD 0x0014 /* Hardware Address offset in SROM */
|
|
#define SROM_RD 0x00004000 /* Read from Boot ROM */
|
|
#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
|
|
#define EE_WRITE_0 0x4801
|
|
#define EE_WRITE_1 0x4805
|
|
#define EE_DATA_READ 0x08 /* EEPROM chip data out. */
|
|
#define SROM_SR 0x00000800 /* Select Serial ROM when set */
|
|
|
|
#define DT_IN 0x00000004 /* Serial Data In */
|
|
#define DT_CLK 0x00000002 /* Serial ROM Clock */
|
|
#define DT_CS 0x00000001 /* Serial ROM Chip Select */
|
|
|
|
#define POLL_DEMAND 1
|
|
|
|
#ifdef CONFIG_TULIP_FIX_DAVICOM
|
|
#define RESET_DM9102(dev) {\
|
|
unsigned long i;\
|
|
i=INL(dev, 0x0);\
|
|
udelay(1000);\
|
|
OUTL(dev, i | BMR_SWR, DE4X5_BMR);\
|
|
udelay(1000);\
|
|
}
|
|
#else
|
|
#define RESET_DE4X5(dev) {\
|
|
int i;\
|
|
i=INL(dev, DE4X5_BMR);\
|
|
udelay(1000);\
|
|
OUTL(dev, i | BMR_SWR, DE4X5_BMR);\
|
|
udelay(1000);\
|
|
OUTL(dev, i, DE4X5_BMR);\
|
|
udelay(1000);\
|
|
for (i=0;i<5;i++) {INL(dev, DE4X5_BMR); udelay(10000);}\
|
|
udelay(1000);\
|
|
}
|
|
#endif
|
|
|
|
#define START_DE4X5(dev) {\
|
|
s32 omr; \
|
|
omr = INL(dev, DE4X5_OMR);\
|
|
omr |= OMR_ST | OMR_SR;\
|
|
OUTL(dev, omr, DE4X5_OMR); /* Enable the TX and/or RX */\
|
|
}
|
|
|
|
#define STOP_DE4X5(dev) {\
|
|
s32 omr; \
|
|
omr = INL(dev, DE4X5_OMR);\
|
|
omr &= ~(OMR_ST|OMR_SR);\
|
|
OUTL(dev, omr, DE4X5_OMR); /* Disable the TX and/or RX */ \
|
|
}
|
|
|
|
#define NUM_RX_DESC PKTBUFSRX
|
|
#ifndef CONFIG_TULIP_FIX_DAVICOM
|
|
#define NUM_TX_DESC 1 /* Number of TX descriptors */
|
|
#else
|
|
#define NUM_TX_DESC 4
|
|
#endif
|
|
#define RX_BUFF_SZ PKTSIZE_ALIGN
|
|
|
|
#define TOUT_LOOP 1000000
|
|
|
|
#define SETUP_FRAME_LEN 192
|
|
#define ETH_ALEN 6
|
|
|
|
struct de4x5_desc {
|
|
volatile s32 status;
|
|
u32 des1;
|
|
u32 buf;
|
|
u32 next;
|
|
};
|
|
|
|
static struct de4x5_desc rx_ring[NUM_RX_DESC] __attribute__ ((aligned(32))); /* RX descriptor ring */
|
|
static struct de4x5_desc tx_ring[NUM_TX_DESC] __attribute__ ((aligned(32))); /* TX descriptor ring */
|
|
static int rx_new; /* RX descriptor ring pointer */
|
|
static int tx_new; /* TX descriptor ring pointer */
|
|
|
|
static char rxRingSize;
|
|
static char txRingSize;
|
|
|
|
#if defined(UPDATE_SROM) || !defined(CONFIG_TULIP_FIX_DAVICOM)
|
|
static void sendto_srom(struct eth_device* dev, u_int command, u_long addr);
|
|
static int getfrom_srom(struct eth_device* dev, u_long addr);
|
|
static int do_eeprom_cmd(struct eth_device *dev, u_long ioaddr,int cmd,int cmd_len);
|
|
static int do_read_eeprom(struct eth_device *dev,u_long ioaddr,int location,int addr_len);
|
|
#endif /* UPDATE_SROM || !CONFIG_TULIP_FIX_DAVICOM */
|
|
#ifdef UPDATE_SROM
|
|
static int write_srom(struct eth_device *dev, u_long ioaddr, int index, int new_value);
|
|
static void update_srom(struct eth_device *dev, bd_t *bis);
|
|
#endif
|
|
#ifndef CONFIG_TULIP_FIX_DAVICOM
|
|
static int read_srom(struct eth_device *dev, u_long ioaddr, int index);
|
|
static void read_hw_addr(struct eth_device* dev, bd_t * bis);
|
|
#endif /* CONFIG_TULIP_FIX_DAVICOM */
|
|
static void send_setup_frame(struct eth_device* dev, bd_t * bis);
|
|
|
|
static int dc21x4x_init(struct eth_device* dev, bd_t* bis);
|
|
static int dc21x4x_send(struct eth_device* dev, volatile void *packet, int length);
|
|
static int dc21x4x_recv(struct eth_device* dev);
|
|
static void dc21x4x_halt(struct eth_device* dev);
|
|
#ifdef CONFIG_TULIP_SELECT_MEDIA
|
|
extern void dc21x4x_select_media(struct eth_device* dev);
|
|
#endif
|
|
|
|
#if defined(CONFIG_E500)
|
|
#define phys_to_bus(a) (a)
|
|
#else
|
|
#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a)
|
|
#endif
|
|
|
|
static int INL(struct eth_device* dev, u_long addr)
|
|
{
|
|
return le32_to_cpu(*(volatile u_long *)(addr + dev->iobase));
|
|
}
|
|
|
|
static void OUTL(struct eth_device* dev, int command, u_long addr)
|
|
{
|
|
*(volatile u_long *)(addr + dev->iobase) = cpu_to_le32(command);
|
|
}
|
|
|
|
static struct pci_device_id supported[] = {
|
|
{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST },
|
|
{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142 },
|
|
#ifdef CONFIG_TULIP_FIX_DAVICOM
|
|
{ PCI_VENDOR_ID_DAVICOM, PCI_DEVICE_ID_DAVICOM_DM9102A },
|
|
#endif
|
|
{ }
|
|
};
|
|
|
|
int dc21x4x_initialize(bd_t *bis)
|
|
{
|
|
int idx=0;
|
|
int card_number = 0;
|
|
unsigned int cfrv;
|
|
unsigned char timer;
|
|
pci_dev_t devbusfn;
|
|
unsigned int iobase;
|
|
unsigned short status;
|
|
struct eth_device* dev;
|
|
|
|
while(1) {
|
|
devbusfn = pci_find_devices(supported, idx++);
|
|
if (devbusfn == -1) {
|
|
break;
|
|
}
|
|
|
|
/* Get the chip configuration revision register. */
|
|
pci_read_config_dword(devbusfn, PCI_REVISION_ID, &cfrv);
|
|
|
|
#ifndef CONFIG_TULIP_FIX_DAVICOM
|
|
if ((cfrv & CFRV_RN) < DC2114x_BRK ) {
|
|
printf("Error: The chip is not DC21143.\n");
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
pci_read_config_word(devbusfn, PCI_COMMAND, &status);
|
|
status |=
|
|
#ifdef CONFIG_TULIP_USE_IO
|
|
PCI_COMMAND_IO |
|
|
#else
|
|
PCI_COMMAND_MEMORY |
|
|
#endif
|
|
PCI_COMMAND_MASTER;
|
|
pci_write_config_word(devbusfn, PCI_COMMAND, status);
|
|
|
|
pci_read_config_word(devbusfn, PCI_COMMAND, &status);
|
|
if (!(status & PCI_COMMAND_IO)) {
|
|
printf("Error: Can not enable I/O access.\n");
|
|
continue;
|
|
}
|
|
|
|
if (!(status & PCI_COMMAND_IO)) {
|
|
printf("Error: Can not enable I/O access.\n");
|
|
continue;
|
|
}
|
|
|
|
if (!(status & PCI_COMMAND_MASTER)) {
|
|
printf("Error: Can not enable Bus Mastering.\n");
|
|
continue;
|
|
}
|
|
|
|
/* Check the latency timer for values >= 0x60. */
|
|
pci_read_config_byte(devbusfn, PCI_LATENCY_TIMER, &timer);
|
|
|
|
if (timer < 0x60) {
|
|
pci_write_config_byte(devbusfn, PCI_LATENCY_TIMER, 0x60);
|
|
}
|
|
|
|
#ifdef CONFIG_TULIP_USE_IO
|
|
/* read BAR for memory space access */
|
|
pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &iobase);
|
|
iobase &= PCI_BASE_ADDRESS_IO_MASK;
|
|
#else
|
|
/* read BAR for memory space access */
|
|
pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_1, &iobase);
|
|
iobase &= PCI_BASE_ADDRESS_MEM_MASK;
|
|
#endif
|
|
debug ("dc21x4x: DEC 21142 PCI Device @0x%x\n", iobase);
|
|
|
|
dev = (struct eth_device*) malloc(sizeof *dev);
|
|
|
|
#ifdef CONFIG_TULIP_FIX_DAVICOM
|
|
sprintf(dev->name, "Davicom#%d", card_number);
|
|
#else
|
|
sprintf(dev->name, "dc21x4x#%d", card_number);
|
|
#endif
|
|
|
|
#ifdef CONFIG_TULIP_USE_IO
|
|
dev->iobase = pci_io_to_phys(devbusfn, iobase);
|
|
#else
|
|
dev->iobase = pci_mem_to_phys(devbusfn, iobase);
|
|
#endif
|
|
dev->priv = (void*) devbusfn;
|
|
dev->init = dc21x4x_init;
|
|
dev->halt = dc21x4x_halt;
|
|
dev->send = dc21x4x_send;
|
|
dev->recv = dc21x4x_recv;
|
|
|
|
/* Ensure we're not sleeping. */
|
|
pci_write_config_byte(devbusfn, PCI_CFDA_PSM, WAKEUP);
|
|
|
|
udelay(10 * 1000);
|
|
|
|
#ifndef CONFIG_TULIP_FIX_DAVICOM
|
|
read_hw_addr(dev, bis);
|
|
#endif
|
|
eth_register(dev);
|
|
|
|
card_number++;
|
|
}
|
|
|
|
return card_number;
|
|
}
|
|
|
|
static int dc21x4x_init(struct eth_device* dev, bd_t* bis)
|
|
{
|
|
int i;
|
|
int devbusfn = (int) dev->priv;
|
|
|
|
/* Ensure we're not sleeping. */
|
|
pci_write_config_byte(devbusfn, PCI_CFDA_PSM, WAKEUP);
|
|
|
|
#ifdef CONFIG_TULIP_FIX_DAVICOM
|
|
RESET_DM9102(dev);
|
|
#else
|
|
RESET_DE4X5(dev);
|
|
#endif
|
|
|
|
if ((INL(dev, DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
|
|
printf("Error: Cannot reset ethernet controller.\n");
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_TULIP_SELECT_MEDIA
|
|
dc21x4x_select_media(dev);
|
|
#else
|
|
OUTL(dev, OMR_SDP | OMR_PS | OMR_PM, DE4X5_OMR);
|
|
#endif
|
|
|
|
for (i = 0; i < NUM_RX_DESC; i++) {
|
|
rx_ring[i].status = cpu_to_le32(R_OWN);
|
|
rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
|
|
rx_ring[i].buf = cpu_to_le32(phys_to_bus((u32) NetRxPackets[i]));
|
|
#ifdef CONFIG_TULIP_FIX_DAVICOM
|
|
rx_ring[i].next = cpu_to_le32(phys_to_bus((u32) &rx_ring[(i+1) % NUM_RX_DESC]));
|
|
#else
|
|
rx_ring[i].next = 0;
|
|
#endif
|
|
}
|
|
|
|
for (i=0; i < NUM_TX_DESC; i++) {
|
|
tx_ring[i].status = 0;
|
|
tx_ring[i].des1 = 0;
|
|
tx_ring[i].buf = 0;
|
|
|
|
#ifdef CONFIG_TULIP_FIX_DAVICOM
|
|
tx_ring[i].next = cpu_to_le32(phys_to_bus((u32) &tx_ring[(i+1) % NUM_TX_DESC]));
|
|
#else
|
|
tx_ring[i].next = 0;
|
|
#endif
|
|
}
|
|
|
|
rxRingSize = NUM_RX_DESC;
|
|
txRingSize = NUM_TX_DESC;
|
|
|
|
/* Write the end of list marker to the descriptor lists. */
|
|
rx_ring[rxRingSize - 1].des1 |= cpu_to_le32(RD_RER);
|
|
tx_ring[txRingSize - 1].des1 |= cpu_to_le32(TD_TER);
|
|
|
|
/* Tell the adapter where the TX/RX rings are located. */
|
|
OUTL(dev, phys_to_bus((u32) &rx_ring), DE4X5_RRBA);
|
|
OUTL(dev, phys_to_bus((u32) &tx_ring), DE4X5_TRBA);
|
|
|
|
START_DE4X5(dev);
|
|
|
|
tx_new = 0;
|
|
rx_new = 0;
|
|
|
|
send_setup_frame(dev, bis);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int dc21x4x_send(struct eth_device* dev, volatile void *packet, int length)
|
|
{
|
|
int status = -1;
|
|
int i;
|
|
|
|
if (length <= 0) {
|
|
printf("%s: bad packet size: %d\n", dev->name, length);
|
|
goto Done;
|
|
}
|
|
|
|
for(i = 0; tx_ring[tx_new].status & cpu_to_le32(T_OWN); i++) {
|
|
if (i >= TOUT_LOOP) {
|
|
printf("%s: tx error buffer not ready\n", dev->name);
|
|
goto Done;
|
|
}
|
|
}
|
|
|
|
tx_ring[tx_new].buf = cpu_to_le32(phys_to_bus((u32) packet));
|
|
tx_ring[tx_new].des1 = cpu_to_le32(TD_TER | TD_LS | TD_FS | length);
|
|
tx_ring[tx_new].status = cpu_to_le32(T_OWN);
|
|
|
|
OUTL(dev, POLL_DEMAND, DE4X5_TPD);
|
|
|
|
for(i = 0; tx_ring[tx_new].status & cpu_to_le32(T_OWN); i++) {
|
|
if (i >= TOUT_LOOP) {
|
|
printf(".%s: tx buffer not ready\n", dev->name);
|
|
goto Done;
|
|
}
|
|
}
|
|
|
|
if (le32_to_cpu(tx_ring[tx_new].status) & TD_ES) {
|
|
#if 0 /* test-only */
|
|
printf("TX error status = 0x%08X\n",
|
|
le32_to_cpu(tx_ring[tx_new].status));
|
|
#endif
|
|
tx_ring[tx_new].status = 0x0;
|
|
goto Done;
|
|
}
|
|
|
|
status = length;
|
|
|
|
Done:
|
|
tx_new = (tx_new+1) % NUM_TX_DESC;
|
|
return status;
|
|
}
|
|
|
|
static int dc21x4x_recv(struct eth_device* dev)
|
|
{
|
|
s32 status;
|
|
int length = 0;
|
|
|
|
for ( ; ; ) {
|
|
status = (s32)le32_to_cpu(rx_ring[rx_new].status);
|
|
|
|
if (status & R_OWN) {
|
|
break;
|
|
}
|
|
|
|
if (status & RD_LS) {
|
|
/* Valid frame status.
|
|
*/
|
|
if (status & RD_ES) {
|
|
|
|
/* There was an error.
|
|
*/
|
|
printf("RX error status = 0x%08X\n", status);
|
|
} else {
|
|
/* A valid frame received.
|
|
*/
|
|
length = (le32_to_cpu(rx_ring[rx_new].status) >> 16);
|
|
|
|
/* Pass the packet up to the protocol
|
|
* layers.
|
|
*/
|
|
NetReceive(NetRxPackets[rx_new], length - 4);
|
|
}
|
|
|
|
/* Change buffer ownership for this frame, back
|
|
* to the adapter.
|
|
*/
|
|
rx_ring[rx_new].status = cpu_to_le32(R_OWN);
|
|
}
|
|
|
|
/* Update entry information.
|
|
*/
|
|
rx_new = (rx_new + 1) % rxRingSize;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
static void dc21x4x_halt(struct eth_device* dev)
|
|
{
|
|
int devbusfn = (int) dev->priv;
|
|
|
|
STOP_DE4X5(dev);
|
|
OUTL(dev, 0, DE4X5_SICR);
|
|
|
|
pci_write_config_byte(devbusfn, PCI_CFDA_PSM, SLEEP);
|
|
}
|
|
|
|
static void send_setup_frame(struct eth_device* dev, bd_t *bis)
|
|
{
|
|
int i;
|
|
char setup_frame[SETUP_FRAME_LEN];
|
|
char *pa = &setup_frame[0];
|
|
|
|
memset(pa, 0xff, SETUP_FRAME_LEN);
|
|
|
|
for (i = 0; i < ETH_ALEN; i++) {
|
|
*(pa + (i & 1)) = dev->enetaddr[i];
|
|
if (i & 0x01) {
|
|
pa += 4;
|
|
}
|
|
}
|
|
|
|
for(i = 0; tx_ring[tx_new].status & cpu_to_le32(T_OWN); i++) {
|
|
if (i >= TOUT_LOOP) {
|
|
printf("%s: tx error buffer not ready\n", dev->name);
|
|
goto Done;
|
|
}
|
|
}
|
|
|
|
tx_ring[tx_new].buf = cpu_to_le32(phys_to_bus((u32) &setup_frame[0]));
|
|
tx_ring[tx_new].des1 = cpu_to_le32(TD_TER | TD_SET| SETUP_FRAME_LEN);
|
|
tx_ring[tx_new].status = cpu_to_le32(T_OWN);
|
|
|
|
OUTL(dev, POLL_DEMAND, DE4X5_TPD);
|
|
|
|
for(i = 0; tx_ring[tx_new].status & cpu_to_le32(T_OWN); i++) {
|
|
if (i >= TOUT_LOOP) {
|
|
printf("%s: tx buffer not ready\n", dev->name);
|
|
goto Done;
|
|
}
|
|
}
|
|
|
|
if (le32_to_cpu(tx_ring[tx_new].status) != 0x7FFFFFFF) {
|
|
printf("TX error status2 = 0x%08X\n", le32_to_cpu(tx_ring[tx_new].status));
|
|
}
|
|
tx_new = (tx_new+1) % NUM_TX_DESC;
|
|
|
|
Done:
|
|
return;
|
|
}
|
|
|
|
#if defined(UPDATE_SROM) || !defined(CONFIG_TULIP_FIX_DAVICOM)
|
|
/* SROM Read and write routines.
|
|
*/
|
|
static void
|
|
sendto_srom(struct eth_device* dev, u_int command, u_long addr)
|
|
{
|
|
OUTL(dev, command, addr);
|
|
udelay(1);
|
|
}
|
|
|
|
static int
|
|
getfrom_srom(struct eth_device* dev, u_long addr)
|
|
{
|
|
s32 tmp;
|
|
|
|
tmp = INL(dev, addr);
|
|
udelay(1);
|
|
|
|
return tmp;
|
|
}
|
|
|
|
/* Note: this routine returns extra data bits for size detection. */
|
|
static int do_read_eeprom(struct eth_device *dev, u_long ioaddr, int location, int addr_len)
|
|
{
|
|
int i;
|
|
unsigned retval = 0;
|
|
int read_cmd = location | (SROM_READ_CMD << addr_len);
|
|
|
|
sendto_srom(dev, SROM_RD | SROM_SR, ioaddr);
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr);
|
|
|
|
#ifdef DEBUG_SROM
|
|
printf(" EEPROM read at %d ", location);
|
|
#endif
|
|
|
|
/* Shift the read command bits out. */
|
|
for (i = 4 + addr_len; i >= 0; i--) {
|
|
short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | dataval, ioaddr);
|
|
udelay(10);
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | dataval | DT_CLK, ioaddr);
|
|
udelay(10);
|
|
#ifdef DEBUG_SROM2
|
|
printf("%X", getfrom_srom(dev, ioaddr) & 15);
|
|
#endif
|
|
retval = (retval << 1) | ((getfrom_srom(dev, ioaddr) & EE_DATA_READ) ? 1 : 0);
|
|
}
|
|
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr);
|
|
|
|
#ifdef DEBUG_SROM2
|
|
printf(" :%X:", getfrom_srom(dev, ioaddr) & 15);
|
|
#endif
|
|
|
|
for (i = 16; i > 0; i--) {
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS | DT_CLK, ioaddr);
|
|
udelay(10);
|
|
#ifdef DEBUG_SROM2
|
|
printf("%X", getfrom_srom(dev, ioaddr) & 15);
|
|
#endif
|
|
retval = (retval << 1) | ((getfrom_srom(dev, ioaddr) & EE_DATA_READ) ? 1 : 0);
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr);
|
|
udelay(10);
|
|
}
|
|
|
|
/* Terminate the EEPROM access. */
|
|
sendto_srom(dev, SROM_RD | SROM_SR, ioaddr);
|
|
|
|
#ifdef DEBUG_SROM2
|
|
printf(" EEPROM value at %d is %5.5x.\n", location, retval);
|
|
#endif
|
|
|
|
return retval;
|
|
}
|
|
#endif /* UPDATE_SROM || !CONFIG_TULIP_FIX_DAVICOM */
|
|
|
|
/* This executes a generic EEPROM command, typically a write or write
|
|
* enable. It returns the data output from the EEPROM, and thus may
|
|
* also be used for reads.
|
|
*/
|
|
#if defined(UPDATE_SROM) || !defined(CONFIG_TULIP_FIX_DAVICOM)
|
|
static int do_eeprom_cmd(struct eth_device *dev, u_long ioaddr, int cmd, int cmd_len)
|
|
{
|
|
unsigned retval = 0;
|
|
|
|
#ifdef DEBUG_SROM
|
|
printf(" EEPROM op 0x%x: ", cmd);
|
|
#endif
|
|
|
|
sendto_srom(dev,SROM_RD | SROM_SR | DT_CS | DT_CLK, ioaddr);
|
|
|
|
/* Shift the command bits out. */
|
|
do {
|
|
short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0;
|
|
sendto_srom(dev,dataval, ioaddr);
|
|
udelay(10);
|
|
|
|
#ifdef DEBUG_SROM2
|
|
printf("%X", getfrom_srom(dev,ioaddr) & 15);
|
|
#endif
|
|
|
|
sendto_srom(dev,dataval | DT_CLK, ioaddr);
|
|
udelay(10);
|
|
retval = (retval << 1) | ((getfrom_srom(dev,ioaddr) & EE_DATA_READ) ? 1 : 0);
|
|
} while (--cmd_len >= 0);
|
|
sendto_srom(dev,SROM_RD | SROM_SR | DT_CS, ioaddr);
|
|
|
|
/* Terminate the EEPROM access. */
|
|
sendto_srom(dev,SROM_RD | SROM_SR, ioaddr);
|
|
|
|
#ifdef DEBUG_SROM
|
|
printf(" EEPROM result is 0x%5.5x.\n", retval);
|
|
#endif
|
|
|
|
return retval;
|
|
}
|
|
#endif /* UPDATE_SROM || !CONFIG_TULIP_FIX_DAVICOM */
|
|
|
|
#ifndef CONFIG_TULIP_FIX_DAVICOM
|
|
static int read_srom(struct eth_device *dev, u_long ioaddr, int index)
|
|
{
|
|
int ee_addr_size = do_read_eeprom(dev, ioaddr, 0xff, 8) & 0x40000 ? 8 : 6;
|
|
|
|
return do_eeprom_cmd(dev, ioaddr,
|
|
(((SROM_READ_CMD << ee_addr_size) | index) << 16)
|
|
| 0xffff, 3 + ee_addr_size + 16);
|
|
}
|
|
#endif /* CONFIG_TULIP_FIX_DAVICOM */
|
|
|
|
#ifdef UPDATE_SROM
|
|
static int write_srom(struct eth_device *dev, u_long ioaddr, int index, int new_value)
|
|
{
|
|
int ee_addr_size = do_read_eeprom(dev, ioaddr, 0xff, 8) & 0x40000 ? 8 : 6;
|
|
int i;
|
|
unsigned short newval;
|
|
|
|
udelay(10*1000); /* test-only */
|
|
|
|
#ifdef DEBUG_SROM
|
|
printf("ee_addr_size=%d.\n", ee_addr_size);
|
|
printf("Writing new entry 0x%4.4x to offset %d.\n", new_value, index);
|
|
#endif
|
|
|
|
/* Enable programming modes. */
|
|
do_eeprom_cmd(dev, ioaddr, (0x4f << (ee_addr_size-4)), 3+ee_addr_size);
|
|
|
|
/* Do the actual write. */
|
|
do_eeprom_cmd(dev, ioaddr,
|
|
(((SROM_WRITE_CMD<<ee_addr_size)|index) << 16) | new_value,
|
|
3 + ee_addr_size + 16);
|
|
|
|
/* Poll for write finished. */
|
|
sendto_srom(dev, SROM_RD | SROM_SR | DT_CS, ioaddr);
|
|
for (i = 0; i < 10000; i++) /* Typical 2000 ticks */
|
|
if (getfrom_srom(dev, ioaddr) & EE_DATA_READ)
|
|
break;
|
|
|
|
#ifdef DEBUG_SROM
|
|
printf(" Write finished after %d ticks.\n", i);
|
|
#endif
|
|
|
|
/* Disable programming. */
|
|
do_eeprom_cmd(dev, ioaddr, (0x40 << (ee_addr_size-4)), 3 + ee_addr_size);
|
|
|
|
/* And read the result. */
|
|
newval = do_eeprom_cmd(dev, ioaddr,
|
|
(((SROM_READ_CMD<<ee_addr_size)|index) << 16)
|
|
| 0xffff, 3 + ee_addr_size + 16);
|
|
#ifdef DEBUG_SROM
|
|
printf(" New value at offset %d is %4.4x.\n", index, newval);
|
|
#endif
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
#ifndef CONFIG_TULIP_FIX_DAVICOM
|
|
static void read_hw_addr(struct eth_device *dev, bd_t *bis)
|
|
{
|
|
u_short tmp, *p = (u_short *)(&dev->enetaddr[0]);
|
|
int i, j = 0;
|
|
|
|
for (i = 0; i < (ETH_ALEN >> 1); i++) {
|
|
tmp = read_srom(dev, DE4X5_APROM, ((SROM_HWADD >> 1) + i));
|
|
*p = le16_to_cpu(tmp);
|
|
j += *p++;
|
|
}
|
|
|
|
if ((j == 0) || (j == 0x2fffd)) {
|
|
memset (dev->enetaddr, 0, ETH_ALEN);
|
|
debug ("Warning: can't read HW address from SROM.\n");
|
|
goto Done;
|
|
}
|
|
|
|
return;
|
|
|
|
Done:
|
|
#ifdef UPDATE_SROM
|
|
update_srom(dev, bis);
|
|
#endif
|
|
return;
|
|
}
|
|
#endif /* CONFIG_TULIP_FIX_DAVICOM */
|
|
|
|
#ifdef UPDATE_SROM
|
|
static void update_srom(struct eth_device *dev, bd_t *bis)
|
|
{
|
|
int i;
|
|
static unsigned short eeprom[0x40] = {
|
|
0x140b, 0x6610, 0x0000, 0x0000, /* 00 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 04 */
|
|
0x00a3, 0x0103, 0x0000, 0x0000, /* 08 */
|
|
0x0000, 0x1f00, 0x0000, 0x0000, /* 0c */
|
|
0x0108, 0x038d, 0x0000, 0x0000, /* 10 */
|
|
0xe078, 0x0001, 0x0040, 0x0018, /* 14 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 18 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 1c */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 20 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 2c */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 30 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 34 */
|
|
0x0000, 0x0000, 0x0000, 0x0000, /* 38 */
|
|
0x0000, 0x0000, 0x0000, 0x4e07, /* 3c */
|
|
};
|
|
|
|
/* Ethernet Addr... */
|
|
eeprom[0x0a] = ((bis->bi_enetaddr[1] & 0xff) << 8) | (bis->bi_enetaddr[0] & 0xff);
|
|
eeprom[0x0b] = ((bis->bi_enetaddr[3] & 0xff) << 8) | (bis->bi_enetaddr[2] & 0xff);
|
|
eeprom[0x0c] = ((bis->bi_enetaddr[5] & 0xff) << 8) | (bis->bi_enetaddr[4] & 0xff);
|
|
|
|
for (i=0; i<0x40; i++)
|
|
{
|
|
write_srom(dev, DE4X5_APROM, i, eeprom[i]);
|
|
}
|
|
}
|
|
#endif /* UPDATE_SROM */
|
|
|
|
#endif
|