mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
1d506c26d9
This commit is the result of the following actions: - Running gdb/copyright.py to update all of the copyright headers to include 2024, - Manually updating a few files the copyright.py script told me to update, these files had copyright headers embedded within the file, - Regenerating gdbsupport/Makefile.in to refresh it's copyright date, - Using grep to find other files that still mentioned 2023. If these files were updated last year from 2022 to 2023 then I've updated them this year to 2024. I'm sure I've probably missed some dates. Feel free to fix them up as you spot them.
209 lines
5.2 KiB
C
209 lines
5.2 KiB
C
/* Ethernet Physical Receiver model.
|
|
|
|
Copyright (C) 2010-2024 Free Software Foundation, Inc.
|
|
Contributed by Analog Devices, Inc.
|
|
|
|
This file is part of simulators.
|
|
|
|
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 3 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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* This must come before any other includes. */
|
|
#include "defs.h"
|
|
|
|
#include "sim-main.h"
|
|
#include "devices.h"
|
|
|
|
#if defined (HAVE_LINUX_MII_H) && defined (HAVE_LINUX_TYPES_H)
|
|
|
|
/* Workaround old/broken linux headers. */
|
|
#include <linux/types.h>
|
|
#include <linux/mii.h>
|
|
|
|
#define REG_PHY_SIZE 0x20
|
|
|
|
struct eth_phy
|
|
{
|
|
bu32 base;
|
|
bu16 regs[REG_PHY_SIZE];
|
|
};
|
|
#define reg_base() offsetof(struct eth_phy, regs[0])
|
|
#define reg_offset(reg) (offsetof(struct eth_phy, reg) - reg_base())
|
|
#define reg_idx(reg) (reg_offset (reg) / 4)
|
|
|
|
static const char * const reg_names[] =
|
|
{
|
|
[MII_BMCR ] = "MII_BMCR",
|
|
[MII_BMSR ] = "MII_BMSR",
|
|
[MII_PHYSID1 ] = "MII_PHYSID1",
|
|
[MII_PHYSID2 ] = "MII_PHYSID2",
|
|
[MII_ADVERTISE ] = "MII_ADVERTISE",
|
|
[MII_LPA ] = "MII_LPA",
|
|
[MII_EXPANSION ] = "MII_EXPANSION",
|
|
#ifdef MII_CTRL1000
|
|
[MII_CTRL1000 ] = "MII_CTRL1000",
|
|
#endif
|
|
#ifdef MII_STAT1000
|
|
[MII_STAT1000 ] = "MII_STAT1000",
|
|
#endif
|
|
#ifdef MII_ESTATUS
|
|
[MII_ESTATUS ] = "MII_ESTATUS",
|
|
#endif
|
|
[MII_DCOUNTER ] = "MII_DCOUNTER",
|
|
[MII_FCSCOUNTER ] = "MII_FCSCOUNTER",
|
|
[MII_NWAYTEST ] = "MII_NWAYTEST",
|
|
[MII_RERRCOUNTER] = "MII_RERRCOUNTER",
|
|
[MII_SREVISION ] = "MII_SREVISION",
|
|
[MII_RESV1 ] = "MII_RESV1",
|
|
[MII_LBRERROR ] = "MII_LBRERROR",
|
|
[MII_PHYADDR ] = "MII_PHYADDR",
|
|
[MII_RESV2 ] = "MII_RESV2",
|
|
[MII_TPISTATUS ] = "MII_TPISTATUS",
|
|
[MII_NCONFIG ] = "MII_NCONFIG",
|
|
};
|
|
#define mmr_name(off) (reg_names[off] ? : "<INV>")
|
|
#define mmr_off reg_off
|
|
|
|
static unsigned
|
|
eth_phy_io_write_buffer (struct hw *me, const void *source,
|
|
int space, address_word addr, unsigned nr_bytes)
|
|
{
|
|
struct eth_phy *phy = hw_data (me);
|
|
bu16 reg_off;
|
|
bu16 value;
|
|
bu16 *valuep;
|
|
|
|
value = dv_load_2 (source);
|
|
|
|
reg_off = addr - phy->base;
|
|
valuep = (void *)((uintptr_t)phy + reg_base() + reg_off);
|
|
|
|
HW_TRACE_WRITE ();
|
|
|
|
switch (reg_off)
|
|
{
|
|
case MII_BMCR:
|
|
*valuep = value;
|
|
break;
|
|
case MII_PHYSID1:
|
|
case MII_PHYSID2:
|
|
/* Discard writes to these. */
|
|
break;
|
|
default:
|
|
/* XXX: Discard writes to unknown regs ? */
|
|
*valuep = value;
|
|
break;
|
|
}
|
|
|
|
return nr_bytes;
|
|
}
|
|
|
|
static unsigned
|
|
eth_phy_io_read_buffer (struct hw *me, void *dest,
|
|
int space, address_word addr, unsigned nr_bytes)
|
|
{
|
|
struct eth_phy *phy = hw_data (me);
|
|
bu16 reg_off;
|
|
bu16 *valuep;
|
|
|
|
reg_off = addr - phy->base;
|
|
valuep = (void *)((uintptr_t)phy + reg_base() + reg_off);
|
|
|
|
HW_TRACE_READ ();
|
|
|
|
switch (reg_off)
|
|
{
|
|
case MII_BMCR:
|
|
dv_store_2 (dest, *valuep);
|
|
break;
|
|
case MII_BMSR:
|
|
/* XXX: Let people control this ? */
|
|
*valuep = BMSR_100FULL | BMSR_100HALF | BMSR_10FULL | BMSR_10HALF |
|
|
BMSR_ANEGCOMPLETE | BMSR_ANEGCAPABLE | BMSR_LSTATUS;
|
|
dv_store_2 (dest, *valuep);
|
|
break;
|
|
case MII_LPA:
|
|
/* XXX: Let people control this ? */
|
|
*valuep = LPA_100FULL | LPA_100HALF | LPA_10FULL | LPA_10HALF;
|
|
dv_store_2 (dest, *valuep);
|
|
break;
|
|
default:
|
|
dv_store_2 (dest, *valuep);
|
|
break;
|
|
}
|
|
|
|
return nr_bytes;
|
|
}
|
|
|
|
static void
|
|
attach_eth_phy_regs (struct hw *me, struct eth_phy *phy)
|
|
{
|
|
address_word attach_address;
|
|
int attach_space;
|
|
unsigned attach_size;
|
|
reg_property_spec reg;
|
|
|
|
if (hw_find_property (me, "reg") == NULL)
|
|
hw_abort (me, "Missing \"reg\" property");
|
|
|
|
if (!hw_find_reg_array_property (me, "reg", 0, ®))
|
|
hw_abort (me, "\"reg\" property must contain three addr/size entries");
|
|
|
|
hw_unit_address_to_attach_address (hw_parent (me),
|
|
®.address,
|
|
&attach_space, &attach_address, me);
|
|
hw_unit_size_to_attach_size (hw_parent (me), ®.size, &attach_size, me);
|
|
|
|
if (attach_size != REG_PHY_SIZE)
|
|
hw_abort (me, "\"reg\" size must be %#x", REG_PHY_SIZE);
|
|
|
|
hw_attach_address (hw_parent (me),
|
|
0, attach_space, attach_address, attach_size, me);
|
|
|
|
phy->base = attach_address;
|
|
}
|
|
|
|
static void
|
|
eth_phy_finish (struct hw *me)
|
|
{
|
|
struct eth_phy *phy;
|
|
|
|
phy = HW_ZALLOC (me, struct eth_phy);
|
|
|
|
set_hw_data (me, phy);
|
|
set_hw_io_read_buffer (me, eth_phy_io_read_buffer);
|
|
set_hw_io_write_buffer (me, eth_phy_io_write_buffer);
|
|
|
|
attach_eth_phy_regs (me, phy);
|
|
|
|
/* Initialize the PHY. */
|
|
phy->regs[MII_PHYSID1] = 0; /* Unassigned Vendor */
|
|
phy->regs[MII_PHYSID2] = 0xAD; /* Product */
|
|
}
|
|
|
|
#else
|
|
|
|
static void
|
|
eth_phy_finish (struct hw *me)
|
|
{
|
|
HW_TRACE ((me, "No linux/mii.h support found"));
|
|
}
|
|
|
|
#endif
|
|
|
|
const struct hw_descriptor dv_eth_phy_descriptor[] =
|
|
{
|
|
{"eth_phy", eth_phy_finish,},
|
|
{NULL, NULL},
|
|
};
|