Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-18 10:48:51 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/drivers/net/uli526x.c
Masahiro Yamada b75d8dc564 treewide: convert bd_t to struct bd_info by coccinelle 
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>

  #include <asm/u-boot.h>
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  <smpl>
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-07-17 09:30:13 -04:00

996 lines
26 KiB
C
Raw Blame History

// 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>
#include <linux/delay.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 *, struct bd_info *);
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(struct bd_info *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, struct bd_info *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;
}
Reference in a new issue View git blame Copy permalink