--- /dev/null
+/*
+ * 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
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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 const struct ethtool_ops netdev_ethtool_ops;
+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:%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
+
+ NetReceive((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)NetRxPackets[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;
+}
Code Review / kvmfornfv.git / blobdiff