12439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 22439e4bfSJean-Christophe PLAGNIOL-VILLARD dm9000.c: Version 1.2 12/15/2003 32439e4bfSJean-Christophe PLAGNIOL-VILLARD 42439e4bfSJean-Christophe PLAGNIOL-VILLARD A Davicom DM9000 ISA NIC fast Ethernet driver for Linux. 52439e4bfSJean-Christophe PLAGNIOL-VILLARD Copyright (C) 1997 Sten Wang 62439e4bfSJean-Christophe PLAGNIOL-VILLARD 72439e4bfSJean-Christophe PLAGNIOL-VILLARD This program is free software; you can redistribute it and/or 82439e4bfSJean-Christophe PLAGNIOL-VILLARD modify it under the terms of the GNU General Public License 92439e4bfSJean-Christophe PLAGNIOL-VILLARD as published by the Free Software Foundation; either version 2 102439e4bfSJean-Christophe PLAGNIOL-VILLARD of the License, or (at your option) any later version. 112439e4bfSJean-Christophe PLAGNIOL-VILLARD 122439e4bfSJean-Christophe PLAGNIOL-VILLARD This program is distributed in the hope that it will be useful, 132439e4bfSJean-Christophe PLAGNIOL-VILLARD but WITHOUT ANY WARRANTY; without even the implied warranty of 142439e4bfSJean-Christophe PLAGNIOL-VILLARD MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 152439e4bfSJean-Christophe PLAGNIOL-VILLARD GNU General Public License for more details. 162439e4bfSJean-Christophe PLAGNIOL-VILLARD 172439e4bfSJean-Christophe PLAGNIOL-VILLARD (C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved. 182439e4bfSJean-Christophe PLAGNIOL-VILLARD 192439e4bfSJean-Christophe PLAGNIOL-VILLARD V0.11 06/20/2001 REG_0A bit3=1, default enable BP with DA match 202439e4bfSJean-Christophe PLAGNIOL-VILLARD 06/22/2001 Support DM9801 progrmming 212439e4bfSJean-Christophe PLAGNIOL-VILLARD E3: R25 = ((R24 + NF) & 0x00ff) | 0xf000 222439e4bfSJean-Christophe PLAGNIOL-VILLARD E4: R25 = ((R24 + NF) & 0x00ff) | 0xc200 232439e4bfSJean-Christophe PLAGNIOL-VILLARD R17 = (R17 & 0xfff0) | NF + 3 242439e4bfSJean-Christophe PLAGNIOL-VILLARD E5: R25 = ((R24 + NF - 3) & 0x00ff) | 0xc200 252439e4bfSJean-Christophe PLAGNIOL-VILLARD R17 = (R17 & 0xfff0) | NF 262439e4bfSJean-Christophe PLAGNIOL-VILLARD 272439e4bfSJean-Christophe PLAGNIOL-VILLARD v1.00 modify by simon 2001.9.5 282439e4bfSJean-Christophe PLAGNIOL-VILLARD change for kernel 2.4.x 292439e4bfSJean-Christophe PLAGNIOL-VILLARD 302439e4bfSJean-Christophe PLAGNIOL-VILLARD v1.1 11/09/2001 fix force mode bug 312439e4bfSJean-Christophe PLAGNIOL-VILLARD 322439e4bfSJean-Christophe PLAGNIOL-VILLARD v1.2 03/18/2003 Weilun Huang <weilun_huang@davicom.com.tw>: 332439e4bfSJean-Christophe PLAGNIOL-VILLARD Fixed phy reset. 342439e4bfSJean-Christophe PLAGNIOL-VILLARD Added tx/rx 32 bit mode. 352439e4bfSJean-Christophe PLAGNIOL-VILLARD Cleaned up for kernel merge. 362439e4bfSJean-Christophe PLAGNIOL-VILLARD 372439e4bfSJean-Christophe PLAGNIOL-VILLARD -------------------------------------- 382439e4bfSJean-Christophe PLAGNIOL-VILLARD 39a101361bSRemy Bohmer 12/15/2003 Initial port to u-boot by 40a101361bSRemy Bohmer Sascha Hauer <saschahauer@web.de> 41a101361bSRemy Bohmer 42a101361bSRemy Bohmer 06/03/2008 Remy Bohmer <linux@bohmer.net> 43850ba755SRemy Bohmer - Fixed the driver to work with DM9000A. 44850ba755SRemy Bohmer (check on ISR receive status bit before reading the 45850ba755SRemy Bohmer FIFO as described in DM9000 programming guide and 46850ba755SRemy Bohmer application notes) 47a101361bSRemy Bohmer - Added autodetect of databus width. 48134e2662SRemy Bohmer - Made debug code compile again. 49acba3184SRemy Bohmer - Adapt eth_send such that it matches the DM9000* 50acba3184SRemy Bohmer application notes. Needed to make it work properly 51acba3184SRemy Bohmer for DM9000A. 52fbcb7eceSRemy Bohmer - Adapted reset procedure to match DM9000 application 53fbcb7eceSRemy Bohmer notes (i.e. double reset) 5498291e2eSRemy Bohmer - some minor code cleanups 55a101361bSRemy Bohmer These changes are tested with DM9000{A,EP,E} together 56e5a3bc24SRemy Bohmer with a 200MHz Atmel AT91SAM9261 core 572439e4bfSJean-Christophe PLAGNIOL-VILLARD 58d26b739aSAndrew Dyer TODO: external MII is not functional, only internal at the moment. 592439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 602439e4bfSJean-Christophe PLAGNIOL-VILLARD 612439e4bfSJean-Christophe PLAGNIOL-VILLARD #include <common.h> 622439e4bfSJean-Christophe PLAGNIOL-VILLARD #include <command.h> 632439e4bfSJean-Christophe PLAGNIOL-VILLARD #include <net.h> 642439e4bfSJean-Christophe PLAGNIOL-VILLARD #include <asm/io.h> 65e5a3bc24SRemy Bohmer #include <dm9000.h> 662439e4bfSJean-Christophe PLAGNIOL-VILLARD 672439e4bfSJean-Christophe PLAGNIOL-VILLARD #include "dm9000x.h" 682439e4bfSJean-Christophe PLAGNIOL-VILLARD 692439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Board/System/Debug information/definition ---------------- */ 702439e4bfSJean-Christophe PLAGNIOL-VILLARD 712439e4bfSJean-Christophe PLAGNIOL-VILLARD /* #define CONFIG_DM9000_DEBUG */ 722439e4bfSJean-Christophe PLAGNIOL-VILLARD 732439e4bfSJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_DM9000_DEBUG 742439e4bfSJean-Christophe PLAGNIOL-VILLARD #define DM9000_DBG(fmt,args...) printf(fmt, ##args) 75134e2662SRemy Bohmer #define DM9000_DMP_PACKET(func,packet,length) \ 76134e2662SRemy Bohmer do { \ 77134e2662SRemy Bohmer int i; \ 78076cd24cSThomas Weber printf("%s: length: %d\n", func, length); \ 79134e2662SRemy Bohmer for (i = 0; i < length; i++) { \ 80134e2662SRemy Bohmer if (i % 8 == 0) \ 81134e2662SRemy Bohmer printf("\n%s: %02x: ", func, i); \ 82134e2662SRemy Bohmer printf("%02x ", ((unsigned char *) packet)[i]); \ 83134e2662SRemy Bohmer } printf("\n"); \ 84134e2662SRemy Bohmer } while(0) 85134e2662SRemy Bohmer #else 862439e4bfSJean-Christophe PLAGNIOL-VILLARD #define DM9000_DBG(fmt,args...) 87134e2662SRemy Bohmer #define DM9000_DMP_PACKET(func,packet,length) 88134e2662SRemy Bohmer #endif 89134e2662SRemy Bohmer 902439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Structure/enum declaration ------------------------------- */ 912439e4bfSJean-Christophe PLAGNIOL-VILLARD typedef struct board_info { 922439e4bfSJean-Christophe PLAGNIOL-VILLARD u32 runt_length_counter; /* counter: RX length < 64byte */ 932439e4bfSJean-Christophe PLAGNIOL-VILLARD u32 long_length_counter; /* counter: RX length > 1514byte */ 942439e4bfSJean-Christophe PLAGNIOL-VILLARD u32 reset_counter; /* counter: RESET */ 952439e4bfSJean-Christophe PLAGNIOL-VILLARD u32 reset_tx_timeout; /* RESET caused by TX Timeout */ 962439e4bfSJean-Christophe PLAGNIOL-VILLARD u32 reset_rx_status; /* RESET caused by RX Statsus wrong */ 972439e4bfSJean-Christophe PLAGNIOL-VILLARD u16 tx_pkt_cnt; 982439e4bfSJean-Christophe PLAGNIOL-VILLARD u16 queue_start_addr; 992439e4bfSJean-Christophe PLAGNIOL-VILLARD u16 dbug_cnt; 1002439e4bfSJean-Christophe PLAGNIOL-VILLARD u8 phy_addr; 1012439e4bfSJean-Christophe PLAGNIOL-VILLARD u8 device_wait_reset; /* device state */ 1022439e4bfSJean-Christophe PLAGNIOL-VILLARD unsigned char srom[128]; 1030e38c938SRemy Bohmer void (*outblk)(volatile void *data_ptr, int count); 104a101361bSRemy Bohmer void (*inblk)(void *data_ptr, int count); 105a101361bSRemy Bohmer void (*rx_status)(u16 *RxStatus, u16 *RxLen); 10660f61e6dSRemy Bohmer struct eth_device netdev; 1072439e4bfSJean-Christophe PLAGNIOL-VILLARD } board_info_t; 108a101361bSRemy Bohmer static board_info_t dm9000_info; 1092439e4bfSJean-Christophe PLAGNIOL-VILLARD 11060f61e6dSRemy Bohmer 1112439e4bfSJean-Christophe PLAGNIOL-VILLARD /* function declaration ------------------------------------- */ 1122439e4bfSJean-Christophe PLAGNIOL-VILLARD static int dm9000_probe(void); 113*09c04c20SAndy Fleming static u16 dm9000_phy_read(int); 114*09c04c20SAndy Fleming static void dm9000_phy_write(int, u16); 1152439e4bfSJean-Christophe PLAGNIOL-VILLARD static u8 DM9000_ior(int); 1162439e4bfSJean-Christophe PLAGNIOL-VILLARD static void DM9000_iow(int reg, u8 value); 1172439e4bfSJean-Christophe PLAGNIOL-VILLARD 1182439e4bfSJean-Christophe PLAGNIOL-VILLARD /* DM9000 network board routine ---------------------------- */ 1192439e4bfSJean-Christophe PLAGNIOL-VILLARD 12067bee2fbSMike Frysinger #define DM9000_outb(d,r) writeb(d, (volatile u8 *)(r)) 12167bee2fbSMike Frysinger #define DM9000_outw(d,r) writew(d, (volatile u16 *)(r)) 12267bee2fbSMike Frysinger #define DM9000_outl(d,r) writel(d, (volatile u32 *)(r)) 12367bee2fbSMike Frysinger #define DM9000_inb(r) readb((volatile u8 *)(r)) 12467bee2fbSMike Frysinger #define DM9000_inw(r) readw((volatile u16 *)(r)) 12567bee2fbSMike Frysinger #define DM9000_inl(r) readl((volatile u32 *)(r)) 1262439e4bfSJean-Christophe PLAGNIOL-VILLARD 1272439e4bfSJean-Christophe PLAGNIOL-VILLARD #ifdef CONFIG_DM9000_DEBUG 1282439e4bfSJean-Christophe PLAGNIOL-VILLARD static void 1292439e4bfSJean-Christophe PLAGNIOL-VILLARD dump_regs(void) 1302439e4bfSJean-Christophe PLAGNIOL-VILLARD { 1312439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("\n"); 1322439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("NCR (0x00): %02x\n", DM9000_ior(0)); 1332439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("NSR (0x01): %02x\n", DM9000_ior(1)); 1342439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("TCR (0x02): %02x\n", DM9000_ior(2)); 1352439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("TSRI (0x03): %02x\n", DM9000_ior(3)); 1362439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("TSRII (0x04): %02x\n", DM9000_ior(4)); 1372439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("RCR (0x05): %02x\n", DM9000_ior(5)); 1382439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("RSR (0x06): %02x\n", DM9000_ior(6)); 139134e2662SRemy Bohmer DM9000_DBG("ISR (0xFE): %02x\n", DM9000_ior(DM9000_ISR)); 1402439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("\n"); 1412439e4bfSJean-Christophe PLAGNIOL-VILLARD } 142a101361bSRemy Bohmer #endif 143a101361bSRemy Bohmer 1440e38c938SRemy Bohmer static void dm9000_outblk_8bit(volatile void *data_ptr, int count) 145a101361bSRemy Bohmer { 146a101361bSRemy Bohmer int i; 147a101361bSRemy Bohmer for (i = 0; i < count; i++) 148a101361bSRemy Bohmer DM9000_outb((((u8 *) data_ptr)[i] & 0xff), DM9000_DATA); 149a101361bSRemy Bohmer } 150a101361bSRemy Bohmer 1510e38c938SRemy Bohmer static void dm9000_outblk_16bit(volatile void *data_ptr, int count) 152a101361bSRemy Bohmer { 153a101361bSRemy Bohmer int i; 154a101361bSRemy Bohmer u32 tmplen = (count + 1) / 2; 155a101361bSRemy Bohmer 156a101361bSRemy Bohmer for (i = 0; i < tmplen; i++) 157a101361bSRemy Bohmer DM9000_outw(((u16 *) data_ptr)[i], DM9000_DATA); 158a101361bSRemy Bohmer } 1590e38c938SRemy Bohmer static void dm9000_outblk_32bit(volatile void *data_ptr, int count) 160a101361bSRemy Bohmer { 161a101361bSRemy Bohmer int i; 162a101361bSRemy Bohmer u32 tmplen = (count + 3) / 4; 163a101361bSRemy Bohmer 164a101361bSRemy Bohmer for (i = 0; i < tmplen; i++) 165a101361bSRemy Bohmer DM9000_outl(((u32 *) data_ptr)[i], DM9000_DATA); 166a101361bSRemy Bohmer } 167a101361bSRemy Bohmer 168a101361bSRemy Bohmer static void dm9000_inblk_8bit(void *data_ptr, int count) 169a101361bSRemy Bohmer { 170a101361bSRemy Bohmer int i; 171a101361bSRemy Bohmer for (i = 0; i < count; i++) 172a101361bSRemy Bohmer ((u8 *) data_ptr)[i] = DM9000_inb(DM9000_DATA); 173a101361bSRemy Bohmer } 174a101361bSRemy Bohmer 175a101361bSRemy Bohmer static void dm9000_inblk_16bit(void *data_ptr, int count) 176a101361bSRemy Bohmer { 177a101361bSRemy Bohmer int i; 178a101361bSRemy Bohmer u32 tmplen = (count + 1) / 2; 179a101361bSRemy Bohmer 180a101361bSRemy Bohmer for (i = 0; i < tmplen; i++) 181a101361bSRemy Bohmer ((u16 *) data_ptr)[i] = DM9000_inw(DM9000_DATA); 182a101361bSRemy Bohmer } 183a101361bSRemy Bohmer static void dm9000_inblk_32bit(void *data_ptr, int count) 184a101361bSRemy Bohmer { 185a101361bSRemy Bohmer int i; 186a101361bSRemy Bohmer u32 tmplen = (count + 3) / 4; 187a101361bSRemy Bohmer 188a101361bSRemy Bohmer for (i = 0; i < tmplen; i++) 189a101361bSRemy Bohmer ((u32 *) data_ptr)[i] = DM9000_inl(DM9000_DATA); 190a101361bSRemy Bohmer } 191a101361bSRemy Bohmer 192a101361bSRemy Bohmer static void dm9000_rx_status_32bit(u16 *RxStatus, u16 *RxLen) 193a101361bSRemy Bohmer { 194d6ee5fa4SRemy Bohmer u32 tmpdata; 195a101361bSRemy Bohmer 196a101361bSRemy Bohmer DM9000_outb(DM9000_MRCMD, DM9000_IO); 197a101361bSRemy Bohmer 198d6ee5fa4SRemy Bohmer tmpdata = DM9000_inl(DM9000_DATA); 199943b825bSTsiChung Liew *RxStatus = __le16_to_cpu(tmpdata); 200943b825bSTsiChung Liew *RxLen = __le16_to_cpu(tmpdata >> 16); 201a101361bSRemy Bohmer } 202a101361bSRemy Bohmer 203a101361bSRemy Bohmer static void dm9000_rx_status_16bit(u16 *RxStatus, u16 *RxLen) 204a101361bSRemy Bohmer { 205a101361bSRemy Bohmer DM9000_outb(DM9000_MRCMD, DM9000_IO); 206a101361bSRemy Bohmer 207943b825bSTsiChung Liew *RxStatus = __le16_to_cpu(DM9000_inw(DM9000_DATA)); 208943b825bSTsiChung Liew *RxLen = __le16_to_cpu(DM9000_inw(DM9000_DATA)); 209a101361bSRemy Bohmer } 210a101361bSRemy Bohmer 211a101361bSRemy Bohmer static void dm9000_rx_status_8bit(u16 *RxStatus, u16 *RxLen) 212a101361bSRemy Bohmer { 213a101361bSRemy Bohmer DM9000_outb(DM9000_MRCMD, DM9000_IO); 214a101361bSRemy Bohmer 215943b825bSTsiChung Liew *RxStatus = 216943b825bSTsiChung Liew __le16_to_cpu(DM9000_inb(DM9000_DATA) + 217943b825bSTsiChung Liew (DM9000_inb(DM9000_DATA) << 8)); 218943b825bSTsiChung Liew *RxLen = 219943b825bSTsiChung Liew __le16_to_cpu(DM9000_inb(DM9000_DATA) + 220943b825bSTsiChung Liew (DM9000_inb(DM9000_DATA) << 8)); 221a101361bSRemy Bohmer } 2222439e4bfSJean-Christophe PLAGNIOL-VILLARD 2232439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 2242439e4bfSJean-Christophe PLAGNIOL-VILLARD Search DM9000 board, allocate space and register it 2252439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 2262439e4bfSJean-Christophe PLAGNIOL-VILLARD int 2272439e4bfSJean-Christophe PLAGNIOL-VILLARD dm9000_probe(void) 2282439e4bfSJean-Christophe PLAGNIOL-VILLARD { 2292439e4bfSJean-Christophe PLAGNIOL-VILLARD u32 id_val; 2302439e4bfSJean-Christophe PLAGNIOL-VILLARD id_val = DM9000_ior(DM9000_VIDL); 2312439e4bfSJean-Christophe PLAGNIOL-VILLARD id_val |= DM9000_ior(DM9000_VIDH) << 8; 2322439e4bfSJean-Christophe PLAGNIOL-VILLARD id_val |= DM9000_ior(DM9000_PIDL) << 16; 2332439e4bfSJean-Christophe PLAGNIOL-VILLARD id_val |= DM9000_ior(DM9000_PIDH) << 24; 2342439e4bfSJean-Christophe PLAGNIOL-VILLARD if (id_val == DM9000_ID) { 2352439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("dm9000 i/o: 0x%x, id: 0x%x \n", CONFIG_DM9000_BASE, 2362439e4bfSJean-Christophe PLAGNIOL-VILLARD id_val); 2372439e4bfSJean-Christophe PLAGNIOL-VILLARD return 0; 2382439e4bfSJean-Christophe PLAGNIOL-VILLARD } else { 2392439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("dm9000 not found at 0x%08x id: 0x%08x\n", 2402439e4bfSJean-Christophe PLAGNIOL-VILLARD CONFIG_DM9000_BASE, id_val); 2412439e4bfSJean-Christophe PLAGNIOL-VILLARD return -1; 2422439e4bfSJean-Christophe PLAGNIOL-VILLARD } 2432439e4bfSJean-Christophe PLAGNIOL-VILLARD } 2442439e4bfSJean-Christophe PLAGNIOL-VILLARD 2452439e4bfSJean-Christophe PLAGNIOL-VILLARD /* General Purpose dm9000 reset routine */ 2462439e4bfSJean-Christophe PLAGNIOL-VILLARD static void 2472439e4bfSJean-Christophe PLAGNIOL-VILLARD dm9000_reset(void) 2482439e4bfSJean-Christophe PLAGNIOL-VILLARD { 249fbcb7eceSRemy Bohmer DM9000_DBG("resetting DM9000\n"); 250fbcb7eceSRemy Bohmer 251fbcb7eceSRemy Bohmer /* Reset DM9000, 252fbcb7eceSRemy Bohmer see DM9000 Application Notes V1.22 Jun 11, 2004 page 29 */ 253fbcb7eceSRemy Bohmer 254d26b739aSAndrew Dyer /* DEBUG: Make all GPIO0 outputs, all others inputs */ 255d26b739aSAndrew Dyer DM9000_iow(DM9000_GPCR, GPCR_GPIO0_OUT); 256fbcb7eceSRemy Bohmer /* Step 1: Power internal PHY by writing 0 to GPIO0 pin */ 257fbcb7eceSRemy Bohmer DM9000_iow(DM9000_GPR, 0); 258fbcb7eceSRemy Bohmer /* Step 2: Software reset */ 259d26b739aSAndrew Dyer DM9000_iow(DM9000_NCR, (NCR_LBK_INT_MAC | NCR_RST)); 260fbcb7eceSRemy Bohmer 261fbcb7eceSRemy Bohmer do { 262fbcb7eceSRemy Bohmer DM9000_DBG("resetting the DM9000, 1st reset\n"); 263fbcb7eceSRemy Bohmer udelay(25); /* Wait at least 20 us */ 264fbcb7eceSRemy Bohmer } while (DM9000_ior(DM9000_NCR) & 1); 265fbcb7eceSRemy Bohmer 266fbcb7eceSRemy Bohmer DM9000_iow(DM9000_NCR, 0); 267d26b739aSAndrew Dyer DM9000_iow(DM9000_NCR, (NCR_LBK_INT_MAC | NCR_RST)); /* Issue a second reset */ 268fbcb7eceSRemy Bohmer 269fbcb7eceSRemy Bohmer do { 270fbcb7eceSRemy Bohmer DM9000_DBG("resetting the DM9000, 2nd reset\n"); 271fbcb7eceSRemy Bohmer udelay(25); /* Wait at least 20 us */ 272fbcb7eceSRemy Bohmer } while (DM9000_ior(DM9000_NCR) & 1); 273fbcb7eceSRemy Bohmer 274fbcb7eceSRemy Bohmer /* Check whether the ethernet controller is present */ 275fbcb7eceSRemy Bohmer if ((DM9000_ior(DM9000_PIDL) != 0x0) || 276fbcb7eceSRemy Bohmer (DM9000_ior(DM9000_PIDH) != 0x90)) 277fbcb7eceSRemy Bohmer printf("ERROR: resetting DM9000 -> not responding\n"); 2782439e4bfSJean-Christophe PLAGNIOL-VILLARD } 2792439e4bfSJean-Christophe PLAGNIOL-VILLARD 28060f61e6dSRemy Bohmer /* Initialize dm9000 board 2812439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 28260f61e6dSRemy Bohmer static int dm9000_init(struct eth_device *dev, bd_t *bd) 2832439e4bfSJean-Christophe PLAGNIOL-VILLARD { 2842439e4bfSJean-Christophe PLAGNIOL-VILLARD int i, oft, lnk; 285a101361bSRemy Bohmer u8 io_mode; 286a101361bSRemy Bohmer struct board_info *db = &dm9000_info; 287a101361bSRemy Bohmer 28860f61e6dSRemy Bohmer DM9000_DBG("%s\n", __func__); 2892439e4bfSJean-Christophe PLAGNIOL-VILLARD 2902439e4bfSJean-Christophe PLAGNIOL-VILLARD /* RESET device */ 2912439e4bfSJean-Christophe PLAGNIOL-VILLARD dm9000_reset(); 292d26b739aSAndrew Dyer 293d26b739aSAndrew Dyer if (dm9000_probe() < 0) 294d26b739aSAndrew Dyer return -1; 2952439e4bfSJean-Christophe PLAGNIOL-VILLARD 296a101361bSRemy Bohmer /* Auto-detect 8/16/32 bit mode, ISR Bit 6+7 indicate bus width */ 297a101361bSRemy Bohmer io_mode = DM9000_ior(DM9000_ISR) >> 6; 298a101361bSRemy Bohmer 299a101361bSRemy Bohmer switch (io_mode) { 300a101361bSRemy Bohmer case 0x0: /* 16-bit mode */ 301a101361bSRemy Bohmer printf("DM9000: running in 16 bit mode\n"); 302a101361bSRemy Bohmer db->outblk = dm9000_outblk_16bit; 303a101361bSRemy Bohmer db->inblk = dm9000_inblk_16bit; 304a101361bSRemy Bohmer db->rx_status = dm9000_rx_status_16bit; 305a101361bSRemy Bohmer break; 306a101361bSRemy Bohmer case 0x01: /* 32-bit mode */ 307a101361bSRemy Bohmer printf("DM9000: running in 32 bit mode\n"); 308a101361bSRemy Bohmer db->outblk = dm9000_outblk_32bit; 309a101361bSRemy Bohmer db->inblk = dm9000_inblk_32bit; 310a101361bSRemy Bohmer db->rx_status = dm9000_rx_status_32bit; 311a101361bSRemy Bohmer break; 312a101361bSRemy Bohmer case 0x02: /* 8 bit mode */ 313a101361bSRemy Bohmer printf("DM9000: running in 8 bit mode\n"); 314a101361bSRemy Bohmer db->outblk = dm9000_outblk_8bit; 315a101361bSRemy Bohmer db->inblk = dm9000_inblk_8bit; 316a101361bSRemy Bohmer db->rx_status = dm9000_rx_status_8bit; 317a101361bSRemy Bohmer break; 318a101361bSRemy Bohmer default: 319a101361bSRemy Bohmer /* Assume 8 bit mode, will probably not work anyway */ 320a101361bSRemy Bohmer printf("DM9000: Undefined IO-mode:0x%x\n", io_mode); 321a101361bSRemy Bohmer db->outblk = dm9000_outblk_8bit; 322a101361bSRemy Bohmer db->inblk = dm9000_inblk_8bit; 323a101361bSRemy Bohmer db->rx_status = dm9000_rx_status_8bit; 324a101361bSRemy Bohmer break; 325a101361bSRemy Bohmer } 326a101361bSRemy Bohmer 327d26b739aSAndrew Dyer /* Program operating register, only internal phy supported */ 32898291e2eSRemy Bohmer DM9000_iow(DM9000_NCR, 0x0); 32998291e2eSRemy Bohmer /* TX Polling clear */ 33098291e2eSRemy Bohmer DM9000_iow(DM9000_TCR, 0); 33198291e2eSRemy Bohmer /* Less 3Kb, 200us */ 332d26b739aSAndrew Dyer DM9000_iow(DM9000_BPTR, BPTR_BPHW(3) | BPTR_JPT_600US); 33398291e2eSRemy Bohmer /* Flow Control : High/Low Water */ 33498291e2eSRemy Bohmer DM9000_iow(DM9000_FCTR, FCTR_HWOT(3) | FCTR_LWOT(8)); 33598291e2eSRemy Bohmer /* SH FIXME: This looks strange! Flow Control */ 33698291e2eSRemy Bohmer DM9000_iow(DM9000_FCR, 0x0); 33798291e2eSRemy Bohmer /* Special Mode */ 33898291e2eSRemy Bohmer DM9000_iow(DM9000_SMCR, 0); 33998291e2eSRemy Bohmer /* clear TX status */ 34098291e2eSRemy Bohmer DM9000_iow(DM9000_NSR, NSR_WAKEST | NSR_TX2END | NSR_TX1END); 34198291e2eSRemy Bohmer /* Clear interrupt status */ 342d26b739aSAndrew Dyer DM9000_iow(DM9000_ISR, ISR_ROOS | ISR_ROS | ISR_PTS | ISR_PRS); 3432439e4bfSJean-Christophe PLAGNIOL-VILLARD 34407754372SBen Warren printf("MAC: %pM\n", dev->enetaddr); 345d26b739aSAndrew Dyer 346d26b739aSAndrew Dyer /* fill device MAC address registers */ 347d26b739aSAndrew Dyer for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++) 34807754372SBen Warren DM9000_iow(oft, dev->enetaddr[i]); 3492439e4bfSJean-Christophe PLAGNIOL-VILLARD for (i = 0, oft = 0x16; i < 8; i++, oft++) 3502439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(oft, 0xff); 3512439e4bfSJean-Christophe PLAGNIOL-VILLARD 3522439e4bfSJean-Christophe PLAGNIOL-VILLARD /* read back mac, just to be sure */ 3532439e4bfSJean-Christophe PLAGNIOL-VILLARD for (i = 0, oft = 0x10; i < 6; i++, oft++) 3542439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("%02x:", DM9000_ior(oft)); 3552439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("\n"); 3562439e4bfSJean-Christophe PLAGNIOL-VILLARD 3572439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Activate DM9000 */ 35898291e2eSRemy Bohmer /* RX enable */ 35998291e2eSRemy Bohmer DM9000_iow(DM9000_RCR, RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN); 36098291e2eSRemy Bohmer /* Enable TX/RX interrupt mask */ 36198291e2eSRemy Bohmer DM9000_iow(DM9000_IMR, IMR_PAR); 36298291e2eSRemy Bohmer 3632439e4bfSJean-Christophe PLAGNIOL-VILLARD i = 0; 364*09c04c20SAndy Fleming while (!(dm9000_phy_read(1) & 0x20)) { /* autonegation complete bit */ 3652439e4bfSJean-Christophe PLAGNIOL-VILLARD udelay(1000); 3662439e4bfSJean-Christophe PLAGNIOL-VILLARD i++; 3672439e4bfSJean-Christophe PLAGNIOL-VILLARD if (i == 10000) { 3682439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("could not establish link\n"); 3692439e4bfSJean-Christophe PLAGNIOL-VILLARD return 0; 3702439e4bfSJean-Christophe PLAGNIOL-VILLARD } 3712439e4bfSJean-Christophe PLAGNIOL-VILLARD } 3722439e4bfSJean-Christophe PLAGNIOL-VILLARD 3732439e4bfSJean-Christophe PLAGNIOL-VILLARD /* see what we've got */ 374*09c04c20SAndy Fleming lnk = dm9000_phy_read(17) >> 12; 3752439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("operating at "); 3762439e4bfSJean-Christophe PLAGNIOL-VILLARD switch (lnk) { 3772439e4bfSJean-Christophe PLAGNIOL-VILLARD case 1: 3782439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("10M half duplex "); 3792439e4bfSJean-Christophe PLAGNIOL-VILLARD break; 3802439e4bfSJean-Christophe PLAGNIOL-VILLARD case 2: 3812439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("10M full duplex "); 3822439e4bfSJean-Christophe PLAGNIOL-VILLARD break; 3832439e4bfSJean-Christophe PLAGNIOL-VILLARD case 4: 3842439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("100M half duplex "); 3852439e4bfSJean-Christophe PLAGNIOL-VILLARD break; 3862439e4bfSJean-Christophe PLAGNIOL-VILLARD case 8: 3872439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("100M full duplex "); 3882439e4bfSJean-Christophe PLAGNIOL-VILLARD break; 3892439e4bfSJean-Christophe PLAGNIOL-VILLARD default: 3902439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("unknown: %d ", lnk); 3912439e4bfSJean-Christophe PLAGNIOL-VILLARD break; 3922439e4bfSJean-Christophe PLAGNIOL-VILLARD } 3932439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("mode\n"); 3942439e4bfSJean-Christophe PLAGNIOL-VILLARD return 0; 3952439e4bfSJean-Christophe PLAGNIOL-VILLARD } 3962439e4bfSJean-Christophe PLAGNIOL-VILLARD 3972439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 3982439e4bfSJean-Christophe PLAGNIOL-VILLARD Hardware start transmission. 3992439e4bfSJean-Christophe PLAGNIOL-VILLARD Send a packet to media from the upper layer. 4002439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 40160f61e6dSRemy Bohmer static int dm9000_send(struct eth_device *netdev, volatile void *packet, 40260f61e6dSRemy Bohmer int length) 4032439e4bfSJean-Christophe PLAGNIOL-VILLARD { 4042439e4bfSJean-Christophe PLAGNIOL-VILLARD int tmo; 405a101361bSRemy Bohmer struct board_info *db = &dm9000_info; 406a101361bSRemy Bohmer 40760f61e6dSRemy Bohmer DM9000_DMP_PACKET(__func__ , packet, length); 4082439e4bfSJean-Christophe PLAGNIOL-VILLARD 409acba3184SRemy Bohmer DM9000_iow(DM9000_ISR, IMR_PTM); /* Clear Tx bit in ISR */ 410acba3184SRemy Bohmer 4112439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Move data to DM9000 TX RAM */ 412acba3184SRemy Bohmer DM9000_outb(DM9000_MWCMD, DM9000_IO); /* Prepare for TX-data */ 4132439e4bfSJean-Christophe PLAGNIOL-VILLARD 414a101361bSRemy Bohmer /* push the data to the TX-fifo */ 4150e38c938SRemy Bohmer (db->outblk)(packet, length); 4162439e4bfSJean-Christophe PLAGNIOL-VILLARD 4172439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Set TX length to DM9000 */ 4182439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_TXPLL, length & 0xff); 4192439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_TXPLH, (length >> 8) & 0xff); 4202439e4bfSJean-Christophe PLAGNIOL-VILLARD 4212439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Issue TX polling command */ 4222439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_TCR, TCR_TXREQ); /* Cleared after TX complete */ 4232439e4bfSJean-Christophe PLAGNIOL-VILLARD 4242439e4bfSJean-Christophe PLAGNIOL-VILLARD /* wait for end of transmission */ 4256d0f6bcfSJean-Christophe PLAGNIOL-VILLARD tmo = get_timer(0) + 5 * CONFIG_SYS_HZ; 426acba3184SRemy Bohmer while ( !(DM9000_ior(DM9000_NSR) & (NSR_TX1END | NSR_TX2END)) || 427acba3184SRemy Bohmer !(DM9000_ior(DM9000_ISR) & IMR_PTM) ) { 4282439e4bfSJean-Christophe PLAGNIOL-VILLARD if (get_timer(0) >= tmo) { 4292439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("transmission timeout\n"); 4302439e4bfSJean-Christophe PLAGNIOL-VILLARD break; 4312439e4bfSJean-Christophe PLAGNIOL-VILLARD } 4322439e4bfSJean-Christophe PLAGNIOL-VILLARD } 433acba3184SRemy Bohmer DM9000_iow(DM9000_ISR, IMR_PTM); /* Clear Tx bit in ISR */ 434acba3184SRemy Bohmer 4352439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("transmit done\n\n"); 4362439e4bfSJean-Christophe PLAGNIOL-VILLARD return 0; 4372439e4bfSJean-Christophe PLAGNIOL-VILLARD } 4382439e4bfSJean-Christophe PLAGNIOL-VILLARD 4392439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 4402439e4bfSJean-Christophe PLAGNIOL-VILLARD Stop the interface. 4412439e4bfSJean-Christophe PLAGNIOL-VILLARD The interface is stopped when it is brought. 4422439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 44360f61e6dSRemy Bohmer static void dm9000_halt(struct eth_device *netdev) 4442439e4bfSJean-Christophe PLAGNIOL-VILLARD { 44560f61e6dSRemy Bohmer DM9000_DBG("%s\n", __func__); 4462439e4bfSJean-Christophe PLAGNIOL-VILLARD 4472439e4bfSJean-Christophe PLAGNIOL-VILLARD /* RESET devie */ 448*09c04c20SAndy Fleming dm9000_phy_write(0, 0x8000); /* PHY RESET */ 4492439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_GPR, 0x01); /* Power-Down PHY */ 4502439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_IMR, 0x80); /* Disable all interrupt */ 4512439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_RCR, 0x00); /* Disable RX */ 4522439e4bfSJean-Christophe PLAGNIOL-VILLARD } 4532439e4bfSJean-Christophe PLAGNIOL-VILLARD 4542439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 4552439e4bfSJean-Christophe PLAGNIOL-VILLARD Received a packet and pass to upper layer 4562439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 45760f61e6dSRemy Bohmer static int dm9000_rx(struct eth_device *netdev) 4582439e4bfSJean-Christophe PLAGNIOL-VILLARD { 4592439e4bfSJean-Christophe PLAGNIOL-VILLARD u8 rxbyte, *rdptr = (u8 *) NetRxPackets[0]; 4602439e4bfSJean-Christophe PLAGNIOL-VILLARD u16 RxStatus, RxLen = 0; 461a101361bSRemy Bohmer struct board_info *db = &dm9000_info; 4622439e4bfSJean-Christophe PLAGNIOL-VILLARD 463850ba755SRemy Bohmer /* Check packet ready or not, we must check 464850ba755SRemy Bohmer the ISR status first for DM9000A */ 465850ba755SRemy Bohmer if (!(DM9000_ior(DM9000_ISR) & 0x01)) /* Rx-ISR bit must be set. */ 4662439e4bfSJean-Christophe PLAGNIOL-VILLARD return 0; 4672439e4bfSJean-Christophe PLAGNIOL-VILLARD 468850ba755SRemy Bohmer DM9000_iow(DM9000_ISR, 0x01); /* clear PR status latched in bit 0 */ 469850ba755SRemy Bohmer 470850ba755SRemy Bohmer /* There is _at least_ 1 package in the fifo, read them all */ 471850ba755SRemy Bohmer for (;;) { 472850ba755SRemy Bohmer DM9000_ior(DM9000_MRCMDX); /* Dummy read */ 473850ba755SRemy Bohmer 4740e38c938SRemy Bohmer /* Get most updated data, 4750e38c938SRemy Bohmer only look at bits 0:1, See application notes DM9000 */ 4760e38c938SRemy Bohmer rxbyte = DM9000_inb(DM9000_DATA) & 0x03; 477850ba755SRemy Bohmer 4782439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Status check: this byte must be 0 or 1 */ 479850ba755SRemy Bohmer if (rxbyte > DM9000_PKT_RDY) { 4802439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_RCR, 0x00); /* Stop Device */ 4812439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_ISR, 0x80); /* Stop INT request */ 482850ba755SRemy Bohmer printf("DM9000 error: status check fail: 0x%x\n", 483850ba755SRemy Bohmer rxbyte); 484850ba755SRemy Bohmer return 0; 4852439e4bfSJean-Christophe PLAGNIOL-VILLARD } 486850ba755SRemy Bohmer 487850ba755SRemy Bohmer if (rxbyte != DM9000_PKT_RDY) 488850ba755SRemy Bohmer return 0; /* No packet received, ignore */ 489850ba755SRemy Bohmer 4902439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("receiving packet\n"); 4912439e4bfSJean-Christophe PLAGNIOL-VILLARD 4922439e4bfSJean-Christophe PLAGNIOL-VILLARD /* A packet ready now & Get status/length */ 493a101361bSRemy Bohmer (db->rx_status)(&RxStatus, &RxLen); 4942439e4bfSJean-Christophe PLAGNIOL-VILLARD 4952439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("rx status: 0x%04x rx len: %d\n", RxStatus, RxLen); 4962439e4bfSJean-Christophe PLAGNIOL-VILLARD 4972439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Move data from DM9000 */ 4982439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Read received packet from RX SRAM */ 499a101361bSRemy Bohmer (db->inblk)(rdptr, RxLen); 5002439e4bfSJean-Christophe PLAGNIOL-VILLARD 5012439e4bfSJean-Christophe PLAGNIOL-VILLARD if ((RxStatus & 0xbf00) || (RxLen < 0x40) 5022439e4bfSJean-Christophe PLAGNIOL-VILLARD || (RxLen > DM9000_PKT_MAX)) { 5032439e4bfSJean-Christophe PLAGNIOL-VILLARD if (RxStatus & 0x100) { 5042439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("rx fifo error\n"); 5052439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5062439e4bfSJean-Christophe PLAGNIOL-VILLARD if (RxStatus & 0x200) { 5072439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("rx crc error\n"); 5082439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5092439e4bfSJean-Christophe PLAGNIOL-VILLARD if (RxStatus & 0x8000) { 5102439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("rx length error\n"); 5112439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5122439e4bfSJean-Christophe PLAGNIOL-VILLARD if (RxLen > DM9000_PKT_MAX) { 5132439e4bfSJean-Christophe PLAGNIOL-VILLARD printf("rx length too big\n"); 5142439e4bfSJean-Christophe PLAGNIOL-VILLARD dm9000_reset(); 5152439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5162439e4bfSJean-Christophe PLAGNIOL-VILLARD } else { 51760f61e6dSRemy Bohmer DM9000_DMP_PACKET(__func__ , rdptr, RxLen); 5182439e4bfSJean-Christophe PLAGNIOL-VILLARD 5192439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_DBG("passing packet to upper layer\n"); 5202439e4bfSJean-Christophe PLAGNIOL-VILLARD NetReceive(NetRxPackets[0], RxLen); 521850ba755SRemy Bohmer } 5222439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5232439e4bfSJean-Christophe PLAGNIOL-VILLARD return 0; 5242439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5252439e4bfSJean-Christophe PLAGNIOL-VILLARD 5262439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 5272439e4bfSJean-Christophe PLAGNIOL-VILLARD Read a word data from SROM 5282439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 529e5a3bc24SRemy Bohmer #if !defined(CONFIG_DM9000_NO_SROM) 530e5a3bc24SRemy Bohmer void dm9000_read_srom_word(int offset, u8 *to) 5312439e4bfSJean-Christophe PLAGNIOL-VILLARD { 5322439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPAR, offset); 5332439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0x4); 5342439e4bfSJean-Christophe PLAGNIOL-VILLARD udelay(8000); 5352439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0x0); 536ad74cae9SDavid Brownell to[0] = DM9000_ior(DM9000_EPDRL); 537ad74cae9SDavid Brownell to[1] = DM9000_ior(DM9000_EPDRH); 5382439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5392439e4bfSJean-Christophe PLAGNIOL-VILLARD 540e5a3bc24SRemy Bohmer void dm9000_write_srom_word(int offset, u16 val) 5412439e4bfSJean-Christophe PLAGNIOL-VILLARD { 5422439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPAR, offset); 5432439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPDRH, ((val >> 8) & 0xff)); 5442439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPDRL, (val & 0xff)); 5452439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0x12); 5462439e4bfSJean-Christophe PLAGNIOL-VILLARD udelay(8000); 5472439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0); 5482439e4bfSJean-Christophe PLAGNIOL-VILLARD } 549e5a3bc24SRemy Bohmer #endif 5502439e4bfSJean-Christophe PLAGNIOL-VILLARD 55107754372SBen Warren static void dm9000_get_enetaddr(struct eth_device *dev) 55207754372SBen Warren { 55307754372SBen Warren #if !defined(CONFIG_DM9000_NO_SROM) 55407754372SBen Warren int i; 55507754372SBen Warren for (i = 0; i < 3; i++) 55607754372SBen Warren dm9000_read_srom_word(i, dev->enetaddr + (2 * i)); 55707754372SBen Warren #endif 55807754372SBen Warren } 55907754372SBen Warren 5602439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 5612439e4bfSJean-Christophe PLAGNIOL-VILLARD Read a byte from I/O port 5622439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 5632439e4bfSJean-Christophe PLAGNIOL-VILLARD static u8 5642439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_ior(int reg) 5652439e4bfSJean-Christophe PLAGNIOL-VILLARD { 5662439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_outb(reg, DM9000_IO); 5672439e4bfSJean-Christophe PLAGNIOL-VILLARD return DM9000_inb(DM9000_DATA); 5682439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5692439e4bfSJean-Christophe PLAGNIOL-VILLARD 5702439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 5712439e4bfSJean-Christophe PLAGNIOL-VILLARD Write a byte to I/O port 5722439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 5732439e4bfSJean-Christophe PLAGNIOL-VILLARD static void 5742439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(int reg, u8 value) 5752439e4bfSJean-Christophe PLAGNIOL-VILLARD { 5762439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_outb(reg, DM9000_IO); 5772439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_outb(value, DM9000_DATA); 5782439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5792439e4bfSJean-Christophe PLAGNIOL-VILLARD 5802439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 5812439e4bfSJean-Christophe PLAGNIOL-VILLARD Read a word from phyxcer 5822439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 5832439e4bfSJean-Christophe PLAGNIOL-VILLARD static u16 584*09c04c20SAndy Fleming dm9000_phy_read(int reg) 5852439e4bfSJean-Christophe PLAGNIOL-VILLARD { 5862439e4bfSJean-Christophe PLAGNIOL-VILLARD u16 val; 5872439e4bfSJean-Christophe PLAGNIOL-VILLARD 5882439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Fill the phyxcer register into REG_0C */ 5892439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPAR, DM9000_PHY | reg); 5902439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0xc); /* Issue phyxcer read command */ 5912439e4bfSJean-Christophe PLAGNIOL-VILLARD udelay(100); /* Wait read complete */ 5922439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer read command */ 5932439e4bfSJean-Christophe PLAGNIOL-VILLARD val = (DM9000_ior(DM9000_EPDRH) << 8) | DM9000_ior(DM9000_EPDRL); 5942439e4bfSJean-Christophe PLAGNIOL-VILLARD 5952439e4bfSJean-Christophe PLAGNIOL-VILLARD /* The read data keeps on REG_0D & REG_0E */ 596*09c04c20SAndy Fleming DM9000_DBG("dm9000_phy_read(0x%x): 0x%x\n", reg, val); 5972439e4bfSJean-Christophe PLAGNIOL-VILLARD return val; 5982439e4bfSJean-Christophe PLAGNIOL-VILLARD } 5992439e4bfSJean-Christophe PLAGNIOL-VILLARD 6002439e4bfSJean-Christophe PLAGNIOL-VILLARD /* 6012439e4bfSJean-Christophe PLAGNIOL-VILLARD Write a word to phyxcer 6022439e4bfSJean-Christophe PLAGNIOL-VILLARD */ 6032439e4bfSJean-Christophe PLAGNIOL-VILLARD static void 604*09c04c20SAndy Fleming dm9000_phy_write(int reg, u16 value) 6052439e4bfSJean-Christophe PLAGNIOL-VILLARD { 6062439e4bfSJean-Christophe PLAGNIOL-VILLARD 6072439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Fill the phyxcer register into REG_0C */ 6082439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPAR, DM9000_PHY | reg); 6092439e4bfSJean-Christophe PLAGNIOL-VILLARD 6102439e4bfSJean-Christophe PLAGNIOL-VILLARD /* Fill the written data into REG_0D & REG_0E */ 6112439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPDRL, (value & 0xff)); 6122439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPDRH, ((value >> 8) & 0xff)); 6132439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0xa); /* Issue phyxcer write command */ 6142439e4bfSJean-Christophe PLAGNIOL-VILLARD udelay(500); /* Wait write complete */ 6152439e4bfSJean-Christophe PLAGNIOL-VILLARD DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer write command */ 616*09c04c20SAndy Fleming DM9000_DBG("dm9000_phy_write(reg:0x%x, value:0x%x)\n", reg, value); 6172439e4bfSJean-Christophe PLAGNIOL-VILLARD } 61860f61e6dSRemy Bohmer 61960f61e6dSRemy Bohmer int dm9000_initialize(bd_t *bis) 62060f61e6dSRemy Bohmer { 62160f61e6dSRemy Bohmer struct eth_device *dev = &(dm9000_info.netdev); 62260f61e6dSRemy Bohmer 62307754372SBen Warren /* Load MAC address from EEPROM */ 62407754372SBen Warren dm9000_get_enetaddr(dev); 62507754372SBen Warren 62660f61e6dSRemy Bohmer dev->init = dm9000_init; 62760f61e6dSRemy Bohmer dev->halt = dm9000_halt; 62860f61e6dSRemy Bohmer dev->send = dm9000_send; 62960f61e6dSRemy Bohmer dev->recv = dm9000_rx; 63060f61e6dSRemy Bohmer sprintf(dev->name, "dm9000"); 63160f61e6dSRemy Bohmer 63260f61e6dSRemy Bohmer eth_register(dev); 63360f61e6dSRemy Bohmer 63460f61e6dSRemy Bohmer return 0; 63560f61e6dSRemy Bohmer } 636