| Pantelis Antoniou | 48257c4 | 2005-10-28 16:25:58 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Combined Ethernet driver for Motorola MPC8xx and MPC82xx. |
| 3 | * |
| 4 | * Copyright (c) 2003 Intracom S.A. |
| 5 | * by Pantelis Antoniou <panto@intracom.gr> |
| 6 | * |
| 7 | * 2005 (c) MontaVista Software, Inc. |
| 8 | * Vitaly Bordug <vbordug@ru.mvista.com> |
| 9 | * |
| 10 | * This file is licensed under the terms of the GNU General Public License |
| 11 | * version 2. This program is licensed "as is" without any warranty of any |
| 12 | * kind, whether express or implied. |
| 13 | */ |
| 14 | |
| 15 | |
| 16 | #include <linux/config.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/types.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/sched.h> |
| 21 | #include <linux/string.h> |
| 22 | #include <linux/ptrace.h> |
| 23 | #include <linux/errno.h> |
| 24 | #include <linux/ioport.h> |
| 25 | #include <linux/slab.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/pci.h> |
| 28 | #include <linux/init.h> |
| 29 | #include <linux/delay.h> |
| 30 | #include <linux/netdevice.h> |
| 31 | #include <linux/etherdevice.h> |
| 32 | #include <linux/skbuff.h> |
| 33 | #include <linux/spinlock.h> |
| 34 | #include <linux/mii.h> |
| 35 | #include <linux/ethtool.h> |
| 36 | #include <linux/bitops.h> |
| 37 | |
| 38 | #include <asm/pgtable.h> |
| 39 | #include <asm/irq.h> |
| 40 | #include <asm/uaccess.h> |
| 41 | |
| 42 | #include "fs_enet.h" |
| 43 | |
| 44 | static const u16 mii_regs[7] = { |
| 45 | 0x3100, |
| 46 | 0x786d, |
| 47 | 0x0fff, |
| 48 | 0x0fff, |
| 49 | 0x01e1, |
| 50 | 0x45e1, |
| 51 | 0x0003, |
| 52 | }; |
| 53 | |
| 54 | static int mii_read(struct fs_enet_mii_bus *bus, int phy_id, int location) |
| 55 | { |
| 56 | int ret = 0; |
| 57 | |
| 58 | if ((unsigned int)location >= ARRAY_SIZE(mii_regs)) |
| 59 | return -1; |
| 60 | |
| 61 | if (location != 5) |
| 62 | ret = mii_regs[location]; |
| 63 | else |
| 64 | ret = bus->fixed.lpa; |
| 65 | |
| 66 | return ret; |
| 67 | } |
| 68 | |
| 69 | static void mii_write(struct fs_enet_mii_bus *bus, int phy_id, int location, int val) |
| 70 | { |
| 71 | /* do nothing */ |
| 72 | } |
| 73 | |
| 74 | int fs_mii_fixed_init(struct fs_enet_mii_bus *bus) |
| 75 | { |
| 76 | const struct fs_mii_bus_info *bi = bus->bus_info; |
| 77 | |
| 78 | bus->fixed.lpa = 0x45e1; /* default 100Mb, full duplex */ |
| 79 | |
| 80 | /* if speed is fixed at 10Mb, remove 100Mb modes */ |
| 81 | if (bi->i.fixed.speed == 10) |
| 82 | bus->fixed.lpa &= ~LPA_100; |
| 83 | |
| 84 | /* if duplex is half, remove full duplex modes */ |
| 85 | if (bi->i.fixed.duplex == 0) |
| 86 | bus->fixed.lpa &= ~LPA_DUPLEX; |
| 87 | |
| 88 | bus->mii_read = mii_read; |
| 89 | bus->mii_write = mii_write; |
| 90 | |
| 91 | return 0; |
| 92 | } |