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u-boot/drivers/net/uli526x.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

995 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2007, 2010 Freescale Semiconductor, Inc.
*
* Author: Roy Zang <tie-fei.zang@freescale.com>, Sep, 2007
*
* Description:
* ULI 526x Ethernet port driver.
* Based on the Linux driver: drivers/net/tulip/uli526x.c
*/
#include <common.h>
#include <malloc.h>
#include <net.h>
#include <netdev.h>
#include <asm/io.h>
#include <pci.h>
#include <miiphy.h>
/* some kernel function compatible define */
#undef DEBUG
/* Board/System/Debug information/definition */
#define ULI_VENDOR_ID 0x10B9
#define ULI5261_DEVICE_ID 0x5261
#define ULI5263_DEVICE_ID 0x5263
/* ULi M5261 ID*/
#define PCI_ULI5261_ID (ULI5261_DEVICE_ID << 16 | ULI_VENDOR_ID)
/* ULi M5263 ID*/
#define PCI_ULI5263_ID (ULI5263_DEVICE_ID << 16 | ULI_VENDOR_ID)
#define ULI526X_IO_SIZE 0x100
#define TX_DESC_CNT 0x10 /* Allocated Tx descriptors */
#define RX_DESC_CNT PKTBUFSRX /* Allocated Rx descriptors */
#define TX_FREE_DESC_CNT (TX_DESC_CNT - 2) /* Max TX packet count */
#define TX_WAKE_DESC_CNT (TX_DESC_CNT - 3) /* TX wakeup count */
#define DESC_ALL_CNT (TX_DESC_CNT + RX_DESC_CNT)
#define TX_BUF_ALLOC 0x300
#define RX_ALLOC_SIZE PKTSIZE
#define ULI526X_RESET 1
#define CR0_DEFAULT 0
#define CR6_DEFAULT 0x22200000
#define CR7_DEFAULT 0x180c1
#define CR15_DEFAULT 0x06 /* TxJabber RxWatchdog */
#define TDES0_ERR_MASK 0x4302 /* TXJT, LC, EC, FUE */
#define MAX_PACKET_SIZE 1514
#define ULI5261_MAX_MULTICAST 14
#define RX_COPY_SIZE 100
#define MAX_CHECK_PACKET 0x8000
#define ULI526X_10MHF 0
#define ULI526X_100MHF 1
#define ULI526X_10MFD 4
#define ULI526X_100MFD 5
#define ULI526X_AUTO 8
#define ULI526X_TXTH_72 0x400000 /* TX TH 72 byte */
#define ULI526X_TXTH_96 0x404000 /* TX TH 96 byte */
#define ULI526X_TXTH_128 0x0000 /* TX TH 128 byte */
#define ULI526X_TXTH_256 0x4000 /* TX TH 256 byte */
#define ULI526X_TXTH_512 0x8000 /* TX TH 512 byte */
#define ULI526X_TXTH_1K 0xC000 /* TX TH 1K byte */
/* CR9 definition: SROM/MII */
#define CR9_SROM_READ 0x4800
#define CR9_SRCS 0x1
#define CR9_SRCLK 0x2
#define CR9_CRDOUT 0x8
#define SROM_DATA_0 0x0
#define SROM_DATA_1 0x4
#define PHY_DATA_1 0x20000
#define PHY_DATA_0 0x00000
#define MDCLKH 0x10000
#define PHY_POWER_DOWN 0x800
#define SROM_V41_CODE 0x14
#define SROM_CLK_WRITE(data, ioaddr) do { \
outl(data|CR9_SROM_READ|CR9_SRCS, ioaddr); \
udelay(5); \
outl(data|CR9_SROM_READ|CR9_SRCS|CR9_SRCLK, ioaddr); \
udelay(5); \
outl(data|CR9_SROM_READ|CR9_SRCS, ioaddr); \
udelay(5); \
} while (0)
/* Structure/enum declaration */
struct tx_desc {
u32 tdes0, tdes1, tdes2, tdes3; /* Data for the card */
char *tx_buf_ptr; /* Data for us */
struct tx_desc *next_tx_desc;
};
struct rx_desc {
u32 rdes0, rdes1, rdes2, rdes3; /* Data for the card */
char *rx_buf_ptr; /* Data for us */
struct rx_desc *next_rx_desc;
};
struct uli526x_board_info {
u32 chip_id; /* Chip vendor/Device ID */
pci_dev_t pdev;
long ioaddr; /* I/O base address */
u32 cr0_data;
u32 cr5_data;
u32 cr6_data;
u32 cr7_data;
u32 cr15_data;
/* pointer for memory physical address */
dma_addr_t buf_pool_dma_ptr; /* Tx buffer pool memory */
dma_addr_t buf_pool_dma_start; /* Tx buffer pool align dword */
dma_addr_t desc_pool_dma_ptr; /* descriptor pool memory */
dma_addr_t first_tx_desc_dma;
dma_addr_t first_rx_desc_dma;
/* descriptor pointer */
unsigned char *buf_pool_ptr; /* Tx buffer pool memory */
unsigned char *buf_pool_start; /* Tx buffer pool align dword */
unsigned char *desc_pool_ptr; /* descriptor pool memory */
struct tx_desc *first_tx_desc;
struct tx_desc *tx_insert_ptr;
struct tx_desc *tx_remove_ptr;
struct rx_desc *first_rx_desc;
struct rx_desc *rx_ready_ptr; /* packet come pointer */
unsigned long tx_packet_cnt; /* transmitted packet count */
u16 PHY_reg4; /* Saved Phyxcer register 4 value */
u8 media_mode; /* user specify media mode */
u8 op_mode; /* real work dedia mode */
u8 phy_addr;
/* NIC SROM data */
unsigned char srom[128];
};
enum uli526x_offsets {
DCR0 = 0x00, DCR1 = 0x08, DCR2 = 0x10, DCR3 = 0x18, DCR4 = 0x20,
DCR5 = 0x28, DCR6 = 0x30, DCR7 = 0x38, DCR8 = 0x40, DCR9 = 0x48,
DCR10 = 0x50, DCR11 = 0x58, DCR12 = 0x60, DCR13 = 0x68, DCR14 = 0x70,
DCR15 = 0x78
};
enum uli526x_CR6_bits {
CR6_RXSC = 0x2, CR6_PBF = 0x8, CR6_PM = 0x40, CR6_PAM = 0x80,
CR6_FDM = 0x200, CR6_TXSC = 0x2000, CR6_STI = 0x100000,
CR6_SFT = 0x200000, CR6_RXA = 0x40000000, CR6_NO_PURGE = 0x20000000
};
/* Global variable declaration -- */
static unsigned char uli526x_media_mode = ULI526X_AUTO;
static struct tx_desc desc_pool_array[DESC_ALL_CNT + 0x20]
__attribute__ ((aligned(32)));
static char buf_pool[TX_BUF_ALLOC * TX_DESC_CNT + 4];
/* For module input parameter */
static int mode = 8;
/* function declaration -- */
static int uli526x_start_xmit(struct eth_device *dev, void *packet, int length);
static u16 read_srom_word(long, int);
static void uli526x_descriptor_init(struct uli526x_board_info *, unsigned long);
static void allocate_rx_buffer(struct uli526x_board_info *);
static void update_cr6(u32, unsigned long);
static u16 uli_phy_read(unsigned long, u8, u8, u32);
static u16 phy_readby_cr10(unsigned long, u8, u8);
static void uli_phy_write(unsigned long, u8, u8, u16, u32);
static void phy_writeby_cr10(unsigned long, u8, u8, u16);
static void phy_write_1bit(unsigned long, u32, u32);
static u16 phy_read_1bit(unsigned long, u32);
static int uli526x_rx_packet(struct eth_device *);
static void uli526x_free_tx_pkt(struct eth_device *,
struct uli526x_board_info *);
static void uli526x_reuse_buf(struct rx_desc *);
static void uli526x_init(struct eth_device *);
static void uli526x_set_phyxcer(struct uli526x_board_info *);
static int uli526x_init_one(struct eth_device *, bd_t *);
static void uli526x_disable(struct eth_device *);
static void set_mac_addr(struct eth_device *);
static struct pci_device_id uli526x_pci_tbl[] = {
{ ULI_VENDOR_ID, ULI5261_DEVICE_ID}, /* 5261 device */
{ ULI_VENDOR_ID, ULI5263_DEVICE_ID}, /* 5263 device */
{}
};
/* ULI526X network board routine */
/*
* Search ULI526X board, register it
*/
int uli526x_initialize(bd_t *bis)
{
pci_dev_t devno;
int card_number = 0;
struct eth_device *dev;
struct uli526x_board_info *db; /* board information structure */
u32 iobase;
int idx = 0;
while (1) {
/* Find PCI device */
devno = pci_find_devices(uli526x_pci_tbl, idx++);
if (devno < 0)
break;
pci_read_config_dword(devno, PCI_BASE_ADDRESS_1, &iobase);
iobase &= ~0xf;
dev = (struct eth_device *)malloc(sizeof *dev);
if (!dev) {
printf("uli526x: Can not allocate memory\n");
break;
}
memset(dev, 0, sizeof(*dev));
sprintf(dev->name, "uli526x#%d", card_number);
db = (struct uli526x_board_info *)
malloc(sizeof(struct uli526x_board_info));
dev->priv = db;
db->pdev = devno;
dev->iobase = iobase;
dev->init = uli526x_init_one;
dev->halt = uli526x_disable;
dev->send = uli526x_start_xmit;
dev->recv = uli526x_rx_packet;
/* init db */
db->ioaddr = dev->iobase;
/* get chip id */
pci_read_config_dword(devno, PCI_VENDOR_ID, &db->chip_id);
#ifdef DEBUG
printf("uli526x: uli526x @0x%x\n", iobase);
printf("uli526x: chip_id%x\n", db->chip_id);
#endif
eth_register(dev);
card_number++;
pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x20);
udelay(10 * 1000);
}
return card_number;
}
static int uli526x_init_one(struct eth_device *dev, bd_t *bis)
{
struct uli526x_board_info *db = dev->priv;
int i;
switch (mode) {
case ULI526X_10MHF:
case ULI526X_100MHF:
case ULI526X_10MFD:
case ULI526X_100MFD:
uli526x_media_mode = mode;
break;
default:
uli526x_media_mode = ULI526X_AUTO;
break;
}
/* Allocate Tx/Rx descriptor memory */
db->desc_pool_ptr = (uchar *)&desc_pool_array[0];
db->desc_pool_dma_ptr = (dma_addr_t)&desc_pool_array[0];
if (db->desc_pool_ptr == NULL)
return -1;
db->buf_pool_ptr = (uchar *)&buf_pool[0];
db->buf_pool_dma_ptr = (dma_addr_t)&buf_pool[0];
if (db->buf_pool_ptr == NULL)
return -1;
db->first_tx_desc = (struct tx_desc *) db->desc_pool_ptr;
db->first_tx_desc_dma = db->desc_pool_dma_ptr;
db->buf_pool_start = db->buf_pool_ptr;
db->buf_pool_dma_start = db->buf_pool_dma_ptr;
#ifdef DEBUG
printf("%s(): db->ioaddr= 0x%x\n",
__FUNCTION__, db->ioaddr);
printf("%s(): media_mode= 0x%x\n",
__FUNCTION__, uli526x_media_mode);
printf("%s(): db->desc_pool_ptr= 0x%x\n",
__FUNCTION__, db->desc_pool_ptr);
printf("%s(): db->desc_pool_dma_ptr= 0x%x\n",
__FUNCTION__, db->desc_pool_dma_ptr);
printf("%s(): db->buf_pool_ptr= 0x%x\n",
__FUNCTION__, db->buf_pool_ptr);
printf("%s(): db->buf_pool_dma_ptr= 0x%x\n",
__FUNCTION__, db->buf_pool_dma_ptr);
#endif
/* read 64 word srom data */
for (i = 0; i < 64; i++)
((u16 *) db->srom)[i] = cpu_to_le16(read_srom_word(db->ioaddr,
i));
/* Set Node address */
if (((db->srom[0] == 0xff) && (db->srom[1] == 0xff)) ||
((db->srom[0] == 0x00) && (db->srom[1] == 0x00)))
/* SROM absent, so write MAC address to ID Table */
set_mac_addr(dev);
else { /*Exist SROM*/
for (i = 0; i < 6; i++)
dev->enetaddr[i] = db->srom[20 + i];
}
#ifdef DEBUG
for (i = 0; i < 6; i++)
printf("%c%02x", i ? ':' : ' ', dev->enetaddr[i]);
#endif
db->PHY_reg4 = 0x1e0;
/* system variable init */
db->cr6_data = CR6_DEFAULT ;
db->cr6_data |= ULI526X_TXTH_256;
db->cr0_data = CR0_DEFAULT;
uli526x_init(dev);
return 0;
}
static void uli526x_disable(struct eth_device *dev)
{
#ifdef DEBUG
printf("uli526x_disable\n");
#endif
struct uli526x_board_info *db = dev->priv;
if (!((inl(db->ioaddr + DCR12)) & 0x8)) {
/* Reset & stop ULI526X board */
outl(ULI526X_RESET, db->ioaddr + DCR0);
udelay(5);
uli_phy_write(db->ioaddr, db->phy_addr, 0, 0x8000, db->chip_id);
/* reset the board */
db->cr6_data &= ~(CR6_RXSC | CR6_TXSC); /* Disable Tx/Rx */
update_cr6(db->cr6_data, dev->iobase);
outl(0, dev->iobase + DCR7); /* Disable Interrupt */
outl(inl(dev->iobase + DCR5), dev->iobase + DCR5);
}
}
/* Initialize ULI526X board
* Reset ULI526X board
* Initialize TX/Rx descriptor chain structure
* Send the set-up frame
* Enable Tx/Rx machine
*/
static void uli526x_init(struct eth_device *dev)
{
struct uli526x_board_info *db = dev->priv;
u8 phy_tmp;
u16 phy_value;
u16 phy_reg_reset;
/* Reset M526x MAC controller */
outl(ULI526X_RESET, db->ioaddr + DCR0); /* RESET MAC */
udelay(100);
outl(db->cr0_data, db->ioaddr + DCR0);
udelay(5);
/* Phy addr : In some boards,M5261/M5263 phy address != 1 */
db->phy_addr = 1;
db->tx_packet_cnt = 0;
for (phy_tmp = 0; phy_tmp < 32; phy_tmp++) {
/* peer add */
phy_value = uli_phy_read(db->ioaddr, phy_tmp, 3, db->chip_id);
if (phy_value != 0xffff && phy_value != 0) {
db->phy_addr = phy_tmp;
break;
}
}
#ifdef DEBUG
printf("%s(): db->ioaddr= 0x%x\n", __FUNCTION__, db->ioaddr);
printf("%s(): db->phy_addr= 0x%x\n", __FUNCTION__, db->phy_addr);
#endif
if (phy_tmp == 32)
printf("Can not find the phy address!!!");
/* Parser SROM and media mode */
db->media_mode = uli526x_media_mode;
if (!(inl(db->ioaddr + DCR12) & 0x8)) {
/* Phyxcer capability setting */
phy_reg_reset = uli_phy_read(db->ioaddr,
db->phy_addr, 0, db->chip_id);
phy_reg_reset = (phy_reg_reset | 0x8000);
uli_phy_write(db->ioaddr, db->phy_addr, 0,
phy_reg_reset, db->chip_id);
udelay(500);
/* Process Phyxcer Media Mode */
uli526x_set_phyxcer(db);
}
/* Media Mode Process */
if (!(db->media_mode & ULI526X_AUTO))
db->op_mode = db->media_mode; /* Force Mode */
/* Initialize Transmit/Receive decriptor and CR3/4 */
uli526x_descriptor_init(db, db->ioaddr);
/* Init CR6 to program M526X operation */
update_cr6(db->cr6_data, db->ioaddr);
/* Init CR7, interrupt active bit */
db->cr7_data = CR7_DEFAULT;
outl(db->cr7_data, db->ioaddr + DCR7);
/* Init CR15, Tx jabber and Rx watchdog timer */
outl(db->cr15_data, db->ioaddr + DCR15);
/* Enable ULI526X Tx/Rx function */
db->cr6_data |= CR6_RXSC | CR6_TXSC;
update_cr6(db->cr6_data, db->ioaddr);
while (!(inl(db->ioaddr + DCR12) & 0x8))
udelay(10);
}
/*
* Hardware start transmission.
* Send a packet to media from the upper layer.
*/
static int uli526x_start_xmit(struct eth_device *dev, void *packet, int length)
{
struct uli526x_board_info *db = dev->priv;
struct tx_desc *txptr;
unsigned int len = length;
/* Too large packet check */
if (len > MAX_PACKET_SIZE) {
printf(": big packet = %d\n", len);
return 0;
}
/* No Tx resource check, it never happen nromally */
if (db->tx_packet_cnt >= TX_FREE_DESC_CNT) {
printf("No Tx resource %ld\n", db->tx_packet_cnt);
return 0;
}
/* Disable NIC interrupt */
outl(0, dev->iobase + DCR7);
/* transmit this packet */
txptr = db->tx_insert_ptr;
memcpy((char *)txptr->tx_buf_ptr, (char *)packet, (int)length);
txptr->tdes1 = cpu_to_le32(0xe1000000 | length);
/* Point to next transmit free descriptor */
db->tx_insert_ptr = txptr->next_tx_desc;
/* Transmit Packet Process */
if ((db->tx_packet_cnt < TX_DESC_CNT)) {
txptr->tdes0 = cpu_to_le32(0x80000000); /* Set owner bit */
db->tx_packet_cnt++; /* Ready to send */
outl(0x1, dev->iobase + DCR1); /* Issue Tx polling */
}
/* Got ULI526X status */
db->cr5_data = inl(db->ioaddr + DCR5);
outl(db->cr5_data, db->ioaddr + DCR5);
#ifdef TX_DEBUG
printf("%s(): length = 0x%x\n", __FUNCTION__, length);
printf("%s(): cr5_data=%x\n", __FUNCTION__, db->cr5_data);
#endif
outl(db->cr7_data, dev->iobase + DCR7);
uli526x_free_tx_pkt(dev, db);
return length;
}
/*
* Free TX resource after TX complete
*/
static void uli526x_free_tx_pkt(struct eth_device *dev,
struct uli526x_board_info *db)
{
struct tx_desc *txptr;
u32 tdes0;
txptr = db->tx_remove_ptr;
while (db->tx_packet_cnt) {
tdes0 = le32_to_cpu(txptr->tdes0);
/* printf(DRV_NAME ": tdes0=%x\n", tdes0); */
if (tdes0 & 0x80000000)
break;
/* A packet sent completed */
db->tx_packet_cnt--;
if (tdes0 != 0x7fffffff) {
#ifdef TX_DEBUG
printf("%s()tdes0=%x\n", __FUNCTION__, tdes0);
#endif
if (tdes0 & TDES0_ERR_MASK) {
if (tdes0 & 0x0002) { /* UnderRun */
if (!(db->cr6_data & CR6_SFT)) {
db->cr6_data = db->cr6_data |
CR6_SFT;
update_cr6(db->cr6_data,
db->ioaddr);
}
}
}
}
txptr = txptr->next_tx_desc;
}/* End of while */
/* Update TX remove pointer to next */
db->tx_remove_ptr = txptr;
}
/*
* Receive the come packet and pass to upper layer
*/
static int uli526x_rx_packet(struct eth_device *dev)
{
struct uli526x_board_info *db = dev->priv;
struct rx_desc *rxptr;
int rxlen = 0;
u32 rdes0;
rxptr = db->rx_ready_ptr;
rdes0 = le32_to_cpu(rxptr->rdes0);
#ifdef RX_DEBUG
printf("%s(): rxptr->rdes0=%x\n", __FUNCTION__, rxptr->rdes0);
#endif
if (!(rdes0 & 0x80000000)) { /* packet owner check */
if ((rdes0 & 0x300) != 0x300) {
/* A packet without First/Last flag */
/* reuse this buf */
printf("A packet without First/Last flag");
uli526x_reuse_buf(rxptr);
} else {
/* A packet with First/Last flag */
rxlen = ((rdes0 >> 16) & 0x3fff) - 4;
#ifdef RX_DEBUG
printf("%s(): rxlen =%x\n", __FUNCTION__, rxlen);
#endif
/* error summary bit check */
if (rdes0 & 0x8000) {
/* This is a error packet */
printf("Error: rdes0: %x\n", rdes0);
}
if (!(rdes0 & 0x8000) ||
((db->cr6_data & CR6_PM) && (rxlen > 6))) {
#ifdef RX_DEBUG
printf("%s(): rx_skb_ptr =%x\n",
__FUNCTION__, rxptr->rx_buf_ptr);
printf("%s(): rxlen =%x\n",
__FUNCTION__, rxlen);
printf("%s(): buf addr =%x\n",
__FUNCTION__, rxptr->rx_buf_ptr);
printf("%s(): rxlen =%x\n",
__FUNCTION__, rxlen);
int i;
for (i = 0; i < 0x20; i++)
printf("%s(): data[%x] =%x\n",
__FUNCTION__, i, rxptr->rx_buf_ptr[i]);
#endif
net_process_received_packet(
(uchar *)rxptr->rx_buf_ptr, rxlen);
uli526x_reuse_buf(rxptr);
} else {
/* Reuse SKB buffer when the packet is error */
printf("Reuse buffer, rdes0");
uli526x_reuse_buf(rxptr);
}
}
rxptr = rxptr->next_rx_desc;
}
db->rx_ready_ptr = rxptr;
return rxlen;
}
/*
* Reuse the RX buffer
*/
static void uli526x_reuse_buf(struct rx_desc *rxptr)
{
if (!(rxptr->rdes0 & cpu_to_le32(0x80000000)))
rxptr->rdes0 = cpu_to_le32(0x80000000);
else
printf("Buffer reuse method error");
}
/*
* Initialize transmit/Receive descriptor
* Using Chain structure, and allocate Tx/Rx buffer
*/
static void uli526x_descriptor_init(struct uli526x_board_info *db,
unsigned long ioaddr)
{
struct tx_desc *tmp_tx;
struct rx_desc *tmp_rx;
unsigned char *tmp_buf;
dma_addr_t tmp_tx_dma, tmp_rx_dma;
dma_addr_t tmp_buf_dma;
int i;
/* tx descriptor start pointer */
db->tx_insert_ptr = db->first_tx_desc;
db->tx_remove_ptr = db->first_tx_desc;
outl(db->first_tx_desc_dma, ioaddr + DCR4); /* TX DESC address */
/* rx descriptor start pointer */
db->first_rx_desc = (void *)db->first_tx_desc +
sizeof(struct tx_desc) * TX_DESC_CNT;
db->first_rx_desc_dma = db->first_tx_desc_dma +
sizeof(struct tx_desc) * TX_DESC_CNT;
db->rx_ready_ptr = db->first_rx_desc;
outl(db->first_rx_desc_dma, ioaddr + DCR3); /* RX DESC address */
#ifdef DEBUG
printf("%s(): db->first_tx_desc= 0x%x\n",
__FUNCTION__, db->first_tx_desc);
printf("%s(): db->first_rx_desc_dma= 0x%x\n",
__FUNCTION__, db->first_rx_desc_dma);
#endif
/* Init Transmit chain */
tmp_buf = db->buf_pool_start;
tmp_buf_dma = db->buf_pool_dma_start;
tmp_tx_dma = db->first_tx_desc_dma;
for (tmp_tx = db->first_tx_desc, i = 0;
i < TX_DESC_CNT; i++, tmp_tx++) {
tmp_tx->tx_buf_ptr = (char *)tmp_buf;
tmp_tx->tdes0 = cpu_to_le32(0);
tmp_tx->tdes1 = cpu_to_le32(0x81000000); /* IC, chain */
tmp_tx->tdes2 = cpu_to_le32(tmp_buf_dma);
tmp_tx_dma += sizeof(struct tx_desc);
tmp_tx->tdes3 = cpu_to_le32(tmp_tx_dma);
tmp_tx->next_tx_desc = tmp_tx + 1;
tmp_buf = tmp_buf + TX_BUF_ALLOC;
tmp_buf_dma = tmp_buf_dma + TX_BUF_ALLOC;
}
(--tmp_tx)->tdes3 = cpu_to_le32(db->first_tx_desc_dma);
tmp_tx->next_tx_desc = db->first_tx_desc;
/* Init Receive descriptor chain */
tmp_rx_dma = db->first_rx_desc_dma;
for (tmp_rx = db->first_rx_desc, i = 0; i < RX_DESC_CNT;
i++, tmp_rx++) {
tmp_rx->rdes0 = cpu_to_le32(0);
tmp_rx->rdes1 = cpu_to_le32(0x01000600);
tmp_rx_dma += sizeof(struct rx_desc);
tmp_rx->rdes3 = cpu_to_le32(tmp_rx_dma);
tmp_rx->next_rx_desc = tmp_rx + 1;
}
(--tmp_rx)->rdes3 = cpu_to_le32(db->first_rx_desc_dma);
tmp_rx->next_rx_desc = db->first_rx_desc;
/* pre-allocate Rx buffer */
allocate_rx_buffer(db);
}
/*
* Update CR6 value
* Firstly stop ULI526X, then written value and start
*/
static void update_cr6(u32 cr6_data, unsigned long ioaddr)
{
outl(cr6_data, ioaddr + DCR6);
udelay(5);
}
/*
* Allocate rx buffer,
*/
static void allocate_rx_buffer(struct uli526x_board_info *db)
{
int index;
struct rx_desc *rxptr;
rxptr = db->first_rx_desc;
u32 addr;
for (index = 0; index < RX_DESC_CNT; index++) {
addr = (u32)net_rx_packets[index];
addr += (16 - (addr & 15));
rxptr->rx_buf_ptr = (char *) addr;
rxptr->rdes2 = cpu_to_le32(addr);
rxptr->rdes0 = cpu_to_le32(0x80000000);
#ifdef DEBUG
printf("%s(): Number 0x%x:\n", __FUNCTION__, index);
printf("%s(): addr 0x%x:\n", __FUNCTION__, addr);
printf("%s(): rxptr address = 0x%x\n", __FUNCTION__, rxptr);
printf("%s(): rxptr buf address = 0x%x\n", \
__FUNCTION__, rxptr->rx_buf_ptr);
printf("%s(): rdes2 = 0x%x\n", __FUNCTION__, rxptr->rdes2);
#endif
rxptr = rxptr->next_rx_desc;
}
}
/*
* Read one word data from the serial ROM
*/
static u16 read_srom_word(long ioaddr, int offset)
{
int i;
u16 srom_data = 0;
long cr9_ioaddr = ioaddr + DCR9;
outl(CR9_SROM_READ, cr9_ioaddr);
outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
/* Send the Read Command 110b */
SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
SROM_CLK_WRITE(SROM_DATA_1, cr9_ioaddr);
SROM_CLK_WRITE(SROM_DATA_0, cr9_ioaddr);
/* Send the offset */
for (i = 5; i >= 0; i--) {
srom_data = (offset & (1 << i)) ? SROM_DATA_1 : SROM_DATA_0;
SROM_CLK_WRITE(srom_data, cr9_ioaddr);
}
outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
for (i = 16; i > 0; i--) {
outl(CR9_SROM_READ | CR9_SRCS | CR9_SRCLK, cr9_ioaddr);
udelay(5);
srom_data = (srom_data << 1) | ((inl(cr9_ioaddr) & CR9_CRDOUT)
? 1 : 0);
outl(CR9_SROM_READ | CR9_SRCS, cr9_ioaddr);
udelay(5);
}
outl(CR9_SROM_READ, cr9_ioaddr);
return srom_data;
}
/*
* Set 10/100 phyxcer capability
* AUTO mode : phyxcer register4 is NIC capability
* Force mode: phyxcer register4 is the force media
*/
static void uli526x_set_phyxcer(struct uli526x_board_info *db)
{
u16 phy_reg;
/* Phyxcer capability setting */
phy_reg = uli_phy_read(db->ioaddr,
db->phy_addr, 4, db->chip_id) & ~0x01e0;
if (db->media_mode & ULI526X_AUTO) {
/* AUTO Mode */
phy_reg |= db->PHY_reg4;
} else {
/* Force Mode */
switch (db->media_mode) {
case ULI526X_10MHF: phy_reg |= 0x20; break;
case ULI526X_10MFD: phy_reg |= 0x40; break;
case ULI526X_100MHF: phy_reg |= 0x80; break;
case ULI526X_100MFD: phy_reg |= 0x100; break;
}
}
/* Write new capability to Phyxcer Reg4 */
if (!(phy_reg & 0x01e0)) {
phy_reg |= db->PHY_reg4;
db->media_mode |= ULI526X_AUTO;
}
uli_phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id);
/* Restart Auto-Negotiation */
uli_phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id);
udelay(50);
}
/*
* Write a word to Phy register
*/
static void uli_phy_write(unsigned long iobase, u8 phy_addr, u8 offset,
u16 phy_data, u32 chip_id)
{
u16 i;
unsigned long ioaddr;
if (chip_id == PCI_ULI5263_ID) {
phy_writeby_cr10(iobase, phy_addr, offset, phy_data);
return;
}
/* M5261/M5263 Chip */
ioaddr = iobase + DCR9;
/* Send 33 synchronization clock to Phy controller */
for (i = 0; i < 35; i++)
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
/* Send start command(01) to Phy */
phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
/* Send write command(01) to Phy */
phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
/* Send Phy address */
for (i = 0x10; i > 0; i = i >> 1)
phy_write_1bit(ioaddr, phy_addr & i ?
PHY_DATA_1 : PHY_DATA_0, chip_id);
/* Send register address */
for (i = 0x10; i > 0; i = i >> 1)
phy_write_1bit(ioaddr, offset & i ?
PHY_DATA_1 : PHY_DATA_0, chip_id);
/* written trasnition */
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
/* Write a word data to PHY controller */
for (i = 0x8000; i > 0; i >>= 1)
phy_write_1bit(ioaddr, phy_data & i ?
PHY_DATA_1 : PHY_DATA_0, chip_id);
}
/*
* Read a word data from phy register
*/
static u16 uli_phy_read(unsigned long iobase, u8 phy_addr, u8 offset,
u32 chip_id)
{
int i;
u16 phy_data;
unsigned long ioaddr;
if (chip_id == PCI_ULI5263_ID)
return phy_readby_cr10(iobase, phy_addr, offset);
/* M5261/M5263 Chip */
ioaddr = iobase + DCR9;
/* Send 33 synchronization clock to Phy controller */
for (i = 0; i < 35; i++)
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
/* Send start command(01) to Phy */
phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
/* Send read command(10) to Phy */
phy_write_1bit(ioaddr, PHY_DATA_1, chip_id);
phy_write_1bit(ioaddr, PHY_DATA_0, chip_id);
/* Send Phy address */
for (i = 0x10; i > 0; i = i >> 1)
phy_write_1bit(ioaddr, phy_addr & i ?
PHY_DATA_1 : PHY_DATA_0, chip_id);
/* Send register address */
for (i = 0x10; i > 0; i = i >> 1)
phy_write_1bit(ioaddr, offset & i ?
PHY_DATA_1 : PHY_DATA_0, chip_id);
/* Skip transition state */
phy_read_1bit(ioaddr, chip_id);
/* read 16bit data */
for (phy_data = 0, i = 0; i < 16; i++) {
phy_data <<= 1;
phy_data |= phy_read_1bit(ioaddr, chip_id);
}
return phy_data;
}
static u16 phy_readby_cr10(unsigned long iobase, u8 phy_addr, u8 offset)
{
unsigned long ioaddr, cr10_value;
ioaddr = iobase + DCR10;
cr10_value = phy_addr;
cr10_value = (cr10_value<<5) + offset;
cr10_value = (cr10_value<<16) + 0x08000000;
outl(cr10_value, ioaddr);
udelay(1);
while (1) {
cr10_value = inl(ioaddr);
if (cr10_value & 0x10000000)
break;
}
return (cr10_value&0x0ffff);
}
static void phy_writeby_cr10(unsigned long iobase, u8 phy_addr,
u8 offset, u16 phy_data)
{
unsigned long ioaddr, cr10_value;
ioaddr = iobase + DCR10;
cr10_value = phy_addr;
cr10_value = (cr10_value<<5) + offset;
cr10_value = (cr10_value<<16) + 0x04000000 + phy_data;
outl(cr10_value, ioaddr);
udelay(1);
}
/*
* Write one bit data to Phy Controller
*/
static void phy_write_1bit(unsigned long ioaddr, u32 phy_data, u32 chip_id)
{
outl(phy_data , ioaddr); /* MII Clock Low */
udelay(1);
outl(phy_data | MDCLKH, ioaddr); /* MII Clock High */
udelay(1);
outl(phy_data , ioaddr); /* MII Clock Low */
udelay(1);
}
/*
* Read one bit phy data from PHY controller
*/
static u16 phy_read_1bit(unsigned long ioaddr, u32 chip_id)
{
u16 phy_data;
outl(0x50000 , ioaddr);
udelay(1);
phy_data = (inl(ioaddr) >> 19) & 0x1;
outl(0x40000 , ioaddr);
udelay(1);
return phy_data;
}
/*
* Set MAC address to ID Table
*/
static void set_mac_addr(struct eth_device *dev)
{
int i;
u16 addr;
struct uli526x_board_info *db = dev->priv;
outl(0x10000, db->ioaddr + DCR0); /* Diagnosis mode */
/* Reset dianostic pointer port */
outl(0x1c0, db->ioaddr + DCR13);
outl(0, db->ioaddr + DCR14); /* Clear reset port */
outl(0x10, db->ioaddr + DCR14); /* Reset ID Table pointer */
outl(0, db->ioaddr + DCR14); /* Clear reset port */
outl(0, db->ioaddr + DCR13); /* Clear CR13 */
/* Select ID Table access port */
outl(0x1b0, db->ioaddr + DCR13);
/* Read MAC address from CR14 */
for (i = 0; i < 3; i++) {
addr = dev->enetaddr[2 * i] | (dev->enetaddr[2 * i + 1] << 8);
outl(addr, db->ioaddr + DCR14);
}
/* write end */
outl(0, db->ioaddr + DCR13); /* Clear CR13 */
outl(0, db->ioaddr + DCR0); /* Clear CR0 */
udelay(10);
return;
}
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