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author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2007-11-21 21:19:24 +0100 |
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committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2007-11-25 18:35:17 +0100 |
commit | 2439e4bfa111babf4bc07ba20efbf3e36036813e (patch) | |
tree | 21e94282acdc681bdde2ccc270bd401254124d00 /drivers/dm9000x.c | |
parent | 352d259130b349fe9593b8dada641bd78a9659e5 (diff) | |
download | u-boot-2439e4bfa111babf4bc07ba20efbf3e36036813e.zip u-boot-2439e4bfa111babf4bc07ba20efbf3e36036813e.tar.gz u-boot-2439e4bfa111babf4bc07ba20efbf3e36036813e.tar.bz2 |
drivers/net : move net drivers to drivers/net
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'drivers/dm9000x.c')
-rw-r--r-- | drivers/dm9000x.c | 620 |
1 files changed, 0 insertions, 620 deletions
diff --git a/drivers/dm9000x.c b/drivers/dm9000x.c deleted file mode 100644 index 6131b5c..0000000 --- a/drivers/dm9000x.c +++ /dev/null @@ -1,620 +0,0 @@ -/* - dm9000.c: Version 1.2 12/15/2003 - - A Davicom DM9000 ISA NIC fast Ethernet driver for Linux. - Copyright (C) 1997 Sten Wang - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 2 - of the License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - (C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved. - -V0.11 06/20/2001 REG_0A bit3=1, default enable BP with DA match - 06/22/2001 Support DM9801 progrmming - E3: R25 = ((R24 + NF) & 0x00ff) | 0xf000 - E4: R25 = ((R24 + NF) & 0x00ff) | 0xc200 - R17 = (R17 & 0xfff0) | NF + 3 - E5: R25 = ((R24 + NF - 3) & 0x00ff) | 0xc200 - R17 = (R17 & 0xfff0) | NF - -v1.00 modify by simon 2001.9.5 - change for kernel 2.4.x - -v1.1 11/09/2001 fix force mode bug - -v1.2 03/18/2003 Weilun Huang <weilun_huang@davicom.com.tw>: - Fixed phy reset. - Added tx/rx 32 bit mode. - Cleaned up for kernel merge. - --------------------------------------- - - 12/15/2003 Initial port to u-boot by Sascha Hauer <saschahauer@web.de> - -TODO: Homerun NIC and longrun NIC are not functional, only internal at the - moment. -*/ - -#include <common.h> -#include <command.h> -#include <net.h> -#include <asm/io.h> - -#ifdef CONFIG_DRIVER_DM9000 - -#include "dm9000x.h" - -/* Board/System/Debug information/definition ---------------- */ - -#define DM9801_NOISE_FLOOR 0x08 -#define DM9802_NOISE_FLOOR 0x05 - -/* #define CONFIG_DM9000_DEBUG */ - -#ifdef CONFIG_DM9000_DEBUG -#define DM9000_DBG(fmt,args...) printf(fmt ,##args) -#else /* */ -#define DM9000_DBG(fmt,args...) -#endif /* */ -enum DM9000_PHY_mode { DM9000_10MHD = 0, DM9000_100MHD = - 1, DM9000_10MFD = 4, DM9000_100MFD = 5, DM9000_AUTO = - 8, DM9000_1M_HPNA = 0x10 -}; -enum DM9000_NIC_TYPE { FASTETHER_NIC = 0, HOMERUN_NIC = 1, LONGRUN_NIC = 2 -}; - -/* Structure/enum declaration ------------------------------- */ -typedef struct board_info { - u32 runt_length_counter; /* counter: RX length < 64byte */ - u32 long_length_counter; /* counter: RX length > 1514byte */ - u32 reset_counter; /* counter: RESET */ - u32 reset_tx_timeout; /* RESET caused by TX Timeout */ - u32 reset_rx_status; /* RESET caused by RX Statsus wrong */ - u16 tx_pkt_cnt; - u16 queue_start_addr; - u16 dbug_cnt; - u8 phy_addr; - u8 device_wait_reset; /* device state */ - u8 nic_type; /* NIC type */ - unsigned char srom[128]; -} board_info_t; -board_info_t dmfe_info; - -/* For module input parameter */ -static int media_mode = DM9000_AUTO; -static u8 nfloor = 0; - -/* function declaration ------------------------------------- */ -int eth_init(bd_t * bd); -int eth_send(volatile void *, int); -int eth_rx(void); -void eth_halt(void); -static int dm9000_probe(void); -static u16 phy_read(int); -static void phy_write(int, u16); -u16 read_srom_word(int); -static u8 DM9000_ior(int); -static void DM9000_iow(int reg, u8 value); - -/* DM9000 network board routine ---------------------------- */ - -#define DM9000_outb(d,r) ( *(volatile u8 *)r = d ) -#define DM9000_outw(d,r) ( *(volatile u16 *)r = d ) -#define DM9000_outl(d,r) ( *(volatile u32 *)r = d ) -#define DM9000_inb(r) (*(volatile u8 *)r) -#define DM9000_inw(r) (*(volatile u16 *)r) -#define DM9000_inl(r) (*(volatile u32 *)r) - -#ifdef CONFIG_DM9000_DEBUG -static void -dump_regs(void) -{ - DM9000_DBG("\n"); - DM9000_DBG("NCR (0x00): %02x\n", DM9000_ior(0)); - DM9000_DBG("NSR (0x01): %02x\n", DM9000_ior(1)); - DM9000_DBG("TCR (0x02): %02x\n", DM9000_ior(2)); - DM9000_DBG("TSRI (0x03): %02x\n", DM9000_ior(3)); - DM9000_DBG("TSRII (0x04): %02x\n", DM9000_ior(4)); - DM9000_DBG("RCR (0x05): %02x\n", DM9000_ior(5)); - DM9000_DBG("RSR (0x06): %02x\n", DM9000_ior(6)); - DM9000_DBG("ISR (0xFE): %02x\n", DM9000_ior(ISR)); - DM9000_DBG("\n"); -} -#endif /* */ - -/* - Search DM9000 board, allocate space and register it -*/ -int -dm9000_probe(void) -{ - u32 id_val; - id_val = DM9000_ior(DM9000_VIDL); - id_val |= DM9000_ior(DM9000_VIDH) << 8; - id_val |= DM9000_ior(DM9000_PIDL) << 16; - id_val |= DM9000_ior(DM9000_PIDH) << 24; - if (id_val == DM9000_ID) { - printf("dm9000 i/o: 0x%x, id: 0x%x \n", CONFIG_DM9000_BASE, - id_val); - return 0; - } else { - printf("dm9000 not found at 0x%08x id: 0x%08x\n", - CONFIG_DM9000_BASE, id_val); - return -1; - } -} - -/* Set PHY operationg mode -*/ -static void -set_PHY_mode(void) -{ - u16 phy_reg4 = 0x01e1, phy_reg0 = 0x1000; - if (!(media_mode & DM9000_AUTO)) { - switch (media_mode) { - case DM9000_10MHD: - phy_reg4 = 0x21; - phy_reg0 = 0x0000; - break; - case DM9000_10MFD: - phy_reg4 = 0x41; - phy_reg0 = 0x1100; - break; - case DM9000_100MHD: - phy_reg4 = 0x81; - phy_reg0 = 0x2000; - break; - case DM9000_100MFD: - phy_reg4 = 0x101; - phy_reg0 = 0x3100; - break; - } - phy_write(4, phy_reg4); /* Set PHY media mode */ - phy_write(0, phy_reg0); /* Tmp */ - } - DM9000_iow(DM9000_GPCR, 0x01); /* Let GPIO0 output */ - DM9000_iow(DM9000_GPR, 0x00); /* Enable PHY */ -} - -/* - Init HomeRun DM9801 -*/ -static void -program_dm9801(u16 HPNA_rev) -{ - __u16 reg16, reg17, reg24, reg25; - if (!nfloor) - nfloor = DM9801_NOISE_FLOOR; - reg16 = phy_read(16); - reg17 = phy_read(17); - reg24 = phy_read(24); - reg25 = phy_read(25); - switch (HPNA_rev) { - case 0xb900: /* DM9801 E3 */ - reg16 |= 0x1000; - reg25 = ((reg24 + nfloor) & 0x00ff) | 0xf000; - break; - case 0xb901: /* DM9801 E4 */ - reg25 = ((reg24 + nfloor) & 0x00ff) | 0xc200; - reg17 = (reg17 & 0xfff0) + nfloor + 3; - break; - case 0xb902: /* DM9801 E5 */ - case 0xb903: /* DM9801 E6 */ - default: - reg16 |= 0x1000; - reg25 = ((reg24 + nfloor - 3) & 0x00ff) | 0xc200; - reg17 = (reg17 & 0xfff0) + nfloor; - } - phy_write(16, reg16); - phy_write(17, reg17); - phy_write(25, reg25); -} - -/* - Init LongRun DM9802 -*/ -static void -program_dm9802(void) -{ - __u16 reg25; - if (!nfloor) - nfloor = DM9802_NOISE_FLOOR; - reg25 = phy_read(25); - reg25 = (reg25 & 0xff00) + nfloor; - phy_write(25, reg25); -} - -/* Identify NIC type -*/ -static void -identify_nic(void) -{ - struct board_info *db = &dmfe_info; /* Point a board information structure */ - u16 phy_reg3; - DM9000_iow(DM9000_NCR, NCR_EXT_PHY); - phy_reg3 = phy_read(3); - switch (phy_reg3 & 0xfff0) { - case 0xb900: - if (phy_read(31) == 0x4404) { - db->nic_type = HOMERUN_NIC; - program_dm9801(phy_reg3); - DM9000_DBG("found homerun NIC\n"); - } else { - db->nic_type = LONGRUN_NIC; - DM9000_DBG("found longrun NIC\n"); - program_dm9802(); - } - break; - default: - db->nic_type = FASTETHER_NIC; - break; - } - DM9000_iow(DM9000_NCR, 0); -} - -/* General Purpose dm9000 reset routine */ -static void -dm9000_reset(void) -{ - DM9000_DBG("resetting\n"); - DM9000_iow(DM9000_NCR, NCR_RST); - udelay(1000); /* delay 1ms */ -} - -/* Initilize dm9000 board -*/ -int -eth_init(bd_t * bd) -{ - int i, oft, lnk; - DM9000_DBG("eth_init()\n"); - - /* RESET device */ - dm9000_reset(); - dm9000_probe(); - - /* NIC Type: FASTETHER, HOMERUN, LONGRUN */ - identify_nic(); - - /* GPIO0 on pre-activate PHY */ - DM9000_iow(DM9000_GPR, 0x00); /*REG_1F bit0 activate phyxcer */ - - /* Set PHY */ - set_PHY_mode(); - - /* Program operating register */ - DM9000_iow(DM9000_NCR, 0x0); /* only intern phy supported by now */ - DM9000_iow(DM9000_TCR, 0); /* TX Polling clear */ - DM9000_iow(DM9000_BPTR, 0x3f); /* Less 3Kb, 200us */ - DM9000_iow(DM9000_FCTR, FCTR_HWOT(3) | FCTR_LWOT(8)); /* Flow Control : High/Low Water */ - DM9000_iow(DM9000_FCR, 0x0); /* SH FIXME: This looks strange! Flow Control */ - DM9000_iow(DM9000_SMCR, 0); /* Special Mode */ - DM9000_iow(DM9000_NSR, NSR_WAKEST | NSR_TX2END | NSR_TX1END); /* clear TX status */ - DM9000_iow(DM9000_ISR, 0x0f); /* Clear interrupt status */ - - /* Set Node address */ - for (i = 0; i < 6; i++) - ((u16 *) bd->bi_enetaddr)[i] = read_srom_word(i); - - if (is_zero_ether_addr(bd->bi_enetaddr) || - is_multicast_ether_addr(bd->bi_enetaddr)) { - /* try reading from environment */ - u8 i; - char *s, *e; - s = getenv ("ethaddr"); - for (i = 0; i < 6; ++i) { - bd->bi_enetaddr[i] = s ? - simple_strtoul (s, &e, 16) : 0; - if (s) - s = (*e) ? e + 1 : e; - } - } - - printf("MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", bd->bi_enetaddr[0], - bd->bi_enetaddr[1], bd->bi_enetaddr[2], bd->bi_enetaddr[3], - bd->bi_enetaddr[4], bd->bi_enetaddr[5]); - for (i = 0, oft = 0x10; i < 6; i++, oft++) - DM9000_iow(oft, bd->bi_enetaddr[i]); - for (i = 0, oft = 0x16; i < 8; i++, oft++) - DM9000_iow(oft, 0xff); - - /* read back mac, just to be sure */ - for (i = 0, oft = 0x10; i < 6; i++, oft++) - DM9000_DBG("%02x:", DM9000_ior(oft)); - DM9000_DBG("\n"); - - /* Activate DM9000 */ - DM9000_iow(DM9000_RCR, RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN); /* RX enable */ - DM9000_iow(DM9000_IMR, IMR_PAR); /* Enable TX/RX interrupt mask */ - i = 0; - while (!(phy_read(1) & 0x20)) { /* autonegation complete bit */ - udelay(1000); - i++; - if (i == 10000) { - printf("could not establish link\n"); - return 0; - } - } - - /* see what we've got */ - lnk = phy_read(17) >> 12; - printf("operating at "); - switch (lnk) { - case 1: - printf("10M half duplex "); - break; - case 2: - printf("10M full duplex "); - break; - case 4: - printf("100M half duplex "); - break; - case 8: - printf("100M full duplex "); - break; - default: - printf("unknown: %d ", lnk); - break; - } - printf("mode\n"); - return 0; -} - -/* - Hardware start transmission. - Send a packet to media from the upper layer. -*/ -int -eth_send(volatile void *packet, int length) -{ - char *data_ptr; - u32 tmplen, i; - int tmo; - DM9000_DBG("eth_send: length: %d\n", length); - for (i = 0; i < length; i++) { - if (i % 8 == 0) - DM9000_DBG("\nSend: 02x: ", i); - DM9000_DBG("%02x ", ((unsigned char *) packet)[i]); - } DM9000_DBG("\n"); - - /* Move data to DM9000 TX RAM */ - data_ptr = (char *) packet; - DM9000_outb(DM9000_MWCMD, DM9000_IO); - -#ifdef CONFIG_DM9000_USE_8BIT - /* Byte mode */ - for (i = 0; i < length; i++) - DM9000_outb((data_ptr[i] & 0xff), DM9000_DATA); - -#endif /* */ -#ifdef CONFIG_DM9000_USE_16BIT - tmplen = (length + 1) / 2; - for (i = 0; i < tmplen; i++) - DM9000_outw(((u16 *) data_ptr)[i], DM9000_DATA); - -#endif /* */ -#ifdef CONFIG_DM9000_USE_32BIT - tmplen = (length + 3) / 4; - for (i = 0; i < tmplen; i++) - DM9000_outl(((u32 *) data_ptr)[i], DM9000_DATA); - -#endif /* */ - - /* Set TX length to DM9000 */ - DM9000_iow(DM9000_TXPLL, length & 0xff); - DM9000_iow(DM9000_TXPLH, (length >> 8) & 0xff); - - /* Issue TX polling command */ - DM9000_iow(DM9000_TCR, TCR_TXREQ); /* Cleared after TX complete */ - - /* wait for end of transmission */ - tmo = get_timer(0) + 5 * CFG_HZ; - while (DM9000_ior(DM9000_TCR) & TCR_TXREQ) { - if (get_timer(0) >= tmo) { - printf("transmission timeout\n"); - break; - } - } - DM9000_DBG("transmit done\n\n"); - return 0; -} - -/* - Stop the interface. - The interface is stopped when it is brought. -*/ -void -eth_halt(void) -{ - DM9000_DBG("eth_halt\n"); - - /* RESET devie */ - phy_write(0, 0x8000); /* PHY RESET */ - DM9000_iow(DM9000_GPR, 0x01); /* Power-Down PHY */ - DM9000_iow(DM9000_IMR, 0x80); /* Disable all interrupt */ - DM9000_iow(DM9000_RCR, 0x00); /* Disable RX */ -} - -/* - Received a packet and pass to upper layer -*/ -int -eth_rx(void) -{ - u8 rxbyte, *rdptr = (u8 *) NetRxPackets[0]; - u16 RxStatus, RxLen = 0; - u32 tmplen, i; -#ifdef CONFIG_DM9000_USE_32BIT - u32 tmpdata; -#endif - - /* Check packet ready or not */ - DM9000_ior(DM9000_MRCMDX); /* Dummy read */ - rxbyte = DM9000_inb(DM9000_DATA); /* Got most updated data */ - if (rxbyte == 0) - return 0; - - /* Status check: this byte must be 0 or 1 */ - if (rxbyte > 1) { - DM9000_iow(DM9000_RCR, 0x00); /* Stop Device */ - DM9000_iow(DM9000_ISR, 0x80); /* Stop INT request */ - DM9000_DBG("rx status check: %d\n", rxbyte); - } - DM9000_DBG("receiving packet\n"); - - /* A packet ready now & Get status/length */ - DM9000_outb(DM9000_MRCMD, DM9000_IO); - -#ifdef CONFIG_DM9000_USE_8BIT - RxStatus = DM9000_inb(DM9000_DATA) + (DM9000_inb(DM9000_DATA) << 8); - RxLen = DM9000_inb(DM9000_DATA) + (DM9000_inb(DM9000_DATA) << 8); - -#endif /* */ -#ifdef CONFIG_DM9000_USE_16BIT - RxStatus = DM9000_inw(DM9000_DATA); - RxLen = DM9000_inw(DM9000_DATA); - -#endif /* */ -#ifdef CONFIG_DM9000_USE_32BIT - tmpdata = DM9000_inl(DM9000_DATA); - RxStatus = tmpdata; - RxLen = tmpdata >> 16; - -#endif /* */ - DM9000_DBG("rx status: 0x%04x rx len: %d\n", RxStatus, RxLen); - - /* Move data from DM9000 */ - /* Read received packet from RX SRAM */ -#ifdef CONFIG_DM9000_USE_8BIT - for (i = 0; i < RxLen; i++) - rdptr[i] = DM9000_inb(DM9000_DATA); - -#endif /* */ -#ifdef CONFIG_DM9000_USE_16BIT - tmplen = (RxLen + 1) / 2; - for (i = 0; i < tmplen; i++) - ((u16 *) rdptr)[i] = DM9000_inw(DM9000_DATA); - -#endif /* */ -#ifdef CONFIG_DM9000_USE_32BIT - tmplen = (RxLen + 3) / 4; - for (i = 0; i < tmplen; i++) - ((u32 *) rdptr)[i] = DM9000_inl(DM9000_DATA); - -#endif /* */ - if ((RxStatus & 0xbf00) || (RxLen < 0x40) - || (RxLen > DM9000_PKT_MAX)) { - if (RxStatus & 0x100) { - printf("rx fifo error\n"); - } - if (RxStatus & 0x200) { - printf("rx crc error\n"); - } - if (RxStatus & 0x8000) { - printf("rx length error\n"); - } - if (RxLen > DM9000_PKT_MAX) { - printf("rx length too big\n"); - dm9000_reset(); - } - } else { - - /* Pass to upper layer */ - DM9000_DBG("passing packet to upper layer\n"); - NetReceive(NetRxPackets[0], RxLen); - return RxLen; - } - return 0; -} - -/* - Read a word data from SROM -*/ -u16 -read_srom_word(int offset) -{ - DM9000_iow(DM9000_EPAR, offset); - DM9000_iow(DM9000_EPCR, 0x4); - udelay(8000); - DM9000_iow(DM9000_EPCR, 0x0); - return (DM9000_ior(DM9000_EPDRL) + (DM9000_ior(DM9000_EPDRH) << 8)); -} - -void -write_srom_word(int offset, u16 val) -{ - DM9000_iow(DM9000_EPAR, offset); - DM9000_iow(DM9000_EPDRH, ((val >> 8) & 0xff)); - DM9000_iow(DM9000_EPDRL, (val & 0xff)); - DM9000_iow(DM9000_EPCR, 0x12); - udelay(8000); - DM9000_iow(DM9000_EPCR, 0); -} - - -/* - Read a byte from I/O port -*/ -static u8 -DM9000_ior(int reg) -{ - DM9000_outb(reg, DM9000_IO); - return DM9000_inb(DM9000_DATA); -} - -/* - Write a byte to I/O port -*/ -static void -DM9000_iow(int reg, u8 value) -{ - DM9000_outb(reg, DM9000_IO); - DM9000_outb(value, DM9000_DATA); -} - -/* - Read a word from phyxcer -*/ -static u16 -phy_read(int reg) -{ - u16 val; - - /* Fill the phyxcer register into REG_0C */ - DM9000_iow(DM9000_EPAR, DM9000_PHY | reg); - DM9000_iow(DM9000_EPCR, 0xc); /* Issue phyxcer read command */ - udelay(100); /* Wait read complete */ - DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer read command */ - val = (DM9000_ior(DM9000_EPDRH) << 8) | DM9000_ior(DM9000_EPDRL); - - /* The read data keeps on REG_0D & REG_0E */ - DM9000_DBG("phy_read(%d): %d\n", reg, val); - return val; -} - -/* - Write a word to phyxcer -*/ -static void -phy_write(int reg, u16 value) -{ - - /* Fill the phyxcer register into REG_0C */ - DM9000_iow(DM9000_EPAR, DM9000_PHY | reg); - - /* Fill the written data into REG_0D & REG_0E */ - DM9000_iow(DM9000_EPDRL, (value & 0xff)); - DM9000_iow(DM9000_EPDRH, ((value >> 8) & 0xff)); - DM9000_iow(DM9000_EPCR, 0xa); /* Issue phyxcer write command */ - udelay(500); /* Wait write complete */ - DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer write command */ - DM9000_DBG("phy_write(reg:%d, value:%d)\n", reg, value); -} -#endif /* CONFIG_DRIVER_DM9000 */ |