diff options
Diffstat (limited to 'drivers/uli526x.c')
| -rw-r--r-- | drivers/uli526x.c | 996 |
1 files changed, 996 insertions, 0 deletions
diff --git a/drivers/uli526x.c b/drivers/uli526x.c new file mode 100644 index 0000000..1267c57 --- /dev/null +++ b/drivers/uli526x.c @@ -0,0 +1,996 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * + * 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 + * + * This 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. + */ + +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <asm/io.h> +#include <pci.h> +#include <miiphy.h> + +/* some kernel function compatible define */ + +#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) && \ + defined(CONFIG_ULI526X) + +#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, + volatile 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 phy_read(unsigned long, u8, u8, u32); +static u16 phy_readby_cr10(unsigned long, u8, u8); +static void 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); + sprintf(dev->name, "uli526x#%d\n", 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 0; + + db->buf_pool_ptr = &buf_pool[0]; + db->buf_pool_dma_ptr = (dma_addr_t)&buf_pool[0]; + if (db->buf_pool_ptr == NULL) + return 0; + + 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 (((u16 *) db->srom)[0] == 0xffff || ((u16 *) db->srom)[0] == 0) + /* 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 1; +} + +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); + 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 = 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 = phy_read(db->ioaddr, + db->phy_addr, 0, db->chip_id); + phy_reg_reset = (phy_reg_reset | 0x8000); + 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, + volatile 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("Eroor: rdes0: %lx\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(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 = 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 = 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; + } + phy_write(db->ioaddr, db->phy_addr, 4, phy_reg, db->chip_id); + + /* Restart Auto-Negotiation */ + phy_write(db->ioaddr, db->phy_addr, 0, 0x1200, db->chip_id); + udelay(50); +} + +/* + * Write a word to Phy register + */ + +static void 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 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; +} +#endif |