Sitara AM335x Gigabit Ethernet MAC driver. More...

#include "soc_am335x.h"
#include "hw_types.h"
#include "hw_cm_per.h"
#include "hw_control_am335x.h"
#include "hw_cpsw_ale.h"
#include "hw_cpsw_cpdma.h"
#include "hw_cpsw_cpdma_stateram.h"
#include "hw_cpsw_port.h"
#include "hw_cpsw_sl.h"
#include "hw_cpsw_ss.h"
#include "hw_cpsw_wr.h"
#include "hw_mdio.h"
#include "interrupt.h"
#include "core/net.h"
#include "drivers/mac/am335x_eth_driver.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL NIC_TRACE_LEVEL

#define	MDIO_INPUT_CLK 125000000

#define	MDIO_OUTPUT_CLK 1000000

Functions
error_t	am335xEthInitPort1 (NetInterface *interface)
	AM335x Ethernet MAC initialization (port 1) More...

error_t	am335xEthInitPort2 (NetInterface *interface)
	AM335x Ethernet MAC initialization (port 2) More...

void	am335xEthInitInstance (NetInterface *interface)
	Initialize CPSW instance. More...

__weak_func void	am335xEthInitGpio (NetInterface *interface)
	GPIO configuration. More...

void	am335xEthInitBufferDesc (NetInterface *interface)
	Initialize buffer descriptor lists. More...

void	am335xEthTick (NetInterface *interface)
	AM335x Ethernet MAC timer handler. More...

void	am335xEthEnableIrq (NetInterface *interface)
	Enable interrupts. More...

void	am335xEthDisableIrq (NetInterface *interface)
	Disable interrupts. More...

void	am335xEthTxIrqHandler (void)
	Ethernet MAC transmit interrupt. More...

void	am335xEthRxIrqHandler (void)
	Ethernet MAC receive interrupt. More...

void	am335xEthEventHandler (NetInterface *interface)
	AM335x Ethernet MAC event handler. More...

error_t	am335xEthSendPacketPort1 (NetInterface interface, const NetBuffer buffer, size_t offset, NetTxAncillary *ancillary)
	Send a packet (port 1) More...

error_t	am335xEthSendPacketPort2 (NetInterface interface, const NetBuffer buffer, size_t offset, NetTxAncillary *ancillary)
	Send a packet (port 2) More...

error_t	am335xEthUpdateMacAddrFilter (NetInterface *interface)
	Configure MAC address filtering. More...

error_t	am335xEthUpdateMacConfig (NetInterface *interface)
	Adjust MAC configuration parameters for proper operation. More...

void	am335xEthWritePhyReg (uint8_t opcode, uint8_t phyAddr, uint8_t regAddr, uint16_t data)
	Write PHY register. More...

uint16_t	am335xEthReadPhyReg (uint8_t opcode, uint8_t phyAddr, uint8_t regAddr)
	Read PHY register. More...

void	am335xEthWriteEntry (uint_t index, const Am335xAleEntry *entry)
	Write an ALE table entry. More...

void	am335xEthReadEntry (uint_t index, Am335xAleEntry *entry)
	Read an ALE table entry. More...

uint_t	am335xEthFindFreeEntry (void)
	Find a free entry in the ALE table. More...

uint_t	am335xEthFindVlanEntry (uint_t vlanId)
	Search the ALE table for the specified VLAN entry. More...

uint_t	am335xEthFindVlanAddrEntry (uint_t vlanId, MacAddr *macAddr)
	Search the ALE table for the specified VLAN/address entry. More...

error_t	am335xEthAddVlanEntry (uint_t port, uint_t vlanId)
	Add a VLAN entry in the ALE table. More...

error_t	am335xEthAddVlanAddrEntry (uint_t port, uint_t vlanId, MacAddr *macAddr)
	Add a VLAN/address entry in the ALE table. More...

error_t	am335xEthDeleteVlanAddrEntry (uint_t port, uint_t vlanId, MacAddr *macAddr)
	Remove a VLAN/address entry from the ALE table. More...

Variables
const NicDriver	am335xEthPort1Driver
	AM335x Ethernet MAC driver (port1) More...

const NicDriver	am335xEthPort2Driver
	AM335x Ethernet MAC driver (port2) More...

Detailed Description

Sitara AM335x Gigabit Ethernet MAC driver.

License

SPDX-License-Identifier: GPL-2.0-or-later

This file is part of CycloneTCP Open.

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.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author: Oryx Embedded SARL (www.oryx-embedded.com)

Version: 2.4.4

Definition in file am335x_eth_driver.c.

Macro Definition Documentation

◆ MDIO_INPUT_CLK

#define MDIO_INPUT_CLK 125000000

Definition at line 53 of file am335x_eth_driver.c.

◆ MDIO_OUTPUT_CLK

#define MDIO_OUTPUT_CLK 1000000

Definition at line 55 of file am335x_eth_driver.c.

◆ TRACE_LEVEL

#define TRACE_LEVEL NIC_TRACE_LEVEL

Definition at line 32 of file am335x_eth_driver.c.

Function Documentation

◆ am335xEthAddVlanAddrEntry()

error_t am335xEthAddVlanAddrEntry	(	uint_t	port,
		uint_t	vlanId,
		MacAddr *	macAddr
	)

Add a VLAN/address entry in the ALE table.

Parameters

[in]	port	Port number
[in]	vlanId	VLAN identifier
[in]	macAddr	MAC address

Returns: Error code

Definition at line 1808 of file am335x_eth_driver.c.

◆ am335xEthAddVlanEntry()

error_t am335xEthAddVlanEntry	(	uint_t	port,
		uint_t	vlanId
	)

Add a VLAN entry in the ALE table.

Parameters

[in]	port	Port number
[in]	vlanId	VLAN identifier

Returns: Error code

Definition at line 1748 of file am335x_eth_driver.c.

◆ am335xEthDeleteVlanAddrEntry()

error_t am335xEthDeleteVlanAddrEntry	(	uint_t	port,
		uint_t	vlanId,
		MacAddr *	macAddr
	)

Remove a VLAN/address entry from the ALE table.

Parameters

[in]	port	Port number
[in]	vlanId	VLAN identifier
[in]	macAddr	MAC address

Returns: Error code

Definition at line 1879 of file am335x_eth_driver.c.

◆ am335xEthDisableIrq()

void am335xEthDisableIrq ( NetInterface * interface )

Disable interrupts.

Parameters

[in] interface Underlying network interface

Definition at line 894 of file am335x_eth_driver.c.

◆ am335xEthEnableIrq()

void am335xEthEnableIrq ( NetInterface * interface )

Enable interrupts.

Parameters

[in] interface Underlying network interface

Definition at line 858 of file am335x_eth_driver.c.

◆ am335xEthEventHandler()

void am335xEthEventHandler ( NetInterface * interface )

AM335x Ethernet MAC event handler.

Parameters

[in] interface Underlying network interface

Definition at line 1072 of file am335x_eth_driver.c.

◆ am335xEthFindFreeEntry()

uint_t am335xEthFindFreeEntry ( void )

Find a free entry in the ALE table.

Returns: Index of the first free entry

Definition at line 1621 of file am335x_eth_driver.c.

◆ am335xEthFindVlanAddrEntry()

uint_t am335xEthFindVlanAddrEntry	(	uint_t	vlanId,
		MacAddr *	macAddr
	)

Search the ALE table for the specified VLAN/address entry.

Parameters

[in]	vlanId	VLAN identifier
[in]	macAddr	MAC address

Returns: Index of the matching entry

Definition at line 1697 of file am335x_eth_driver.c.

◆ am335xEthFindVlanEntry()

uint_t am335xEthFindVlanEntry ( uint_t vlanId )

Search the ALE table for the specified VLAN entry.

Parameters

[in] vlanId VLAN identifier

Returns: Index of the matching entry

Definition at line 1655 of file am335x_eth_driver.c.

◆ am335xEthInitBufferDesc()

void am335xEthInitBufferDesc ( NetInterface * interface )

Initialize buffer descriptor lists.

Parameters

[in] interface Underlying network interface

Definition at line 715 of file am335x_eth_driver.c.

◆ am335xEthInitGpio()

__weak_func void am335xEthInitGpio ( NetInterface * interface )

GPIO configuration.

Parameters

[in] interface Underlying network interface

Definition at line 500 of file am335x_eth_driver.c.

◆ am335xEthInitInstance()

void am335xEthInitInstance ( NetInterface * interface )

Initialize CPSW instance.

Parameters

[in] interface Underlying network interface

Definition at line 327 of file am335x_eth_driver.c.

◆ am335xEthInitPort1()

error_t am335xEthInitPort1 ( NetInterface * interface )

AM335x Ethernet MAC initialization (port 1)

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 178 of file am335x_eth_driver.c.

◆ am335xEthInitPort2()

error_t am335xEthInitPort2 ( NetInterface * interface )

AM335x Ethernet MAC initialization (port 2)

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 253 of file am335x_eth_driver.c.

◆ am335xEthReadEntry()

void am335xEthReadEntry	(	uint_t	index,
		Am335xAleEntry *	entry
	)

Read an ALE table entry.

Parameters

[in]	index	Entry index
[out]	entry	Pointer to the ALE table entry

Definition at line 1604 of file am335x_eth_driver.c.

◆ am335xEthReadPhyReg()

uint16_t am335xEthReadPhyReg	(	uint8_t	opcode,
		uint8_t	phyAddr,
		uint8_t	regAddr
	)

Read PHY register.

Parameters

[in]	opcode	Access type (2 bits)
[in]	phyAddr	PHY address (5 bits)
[in]	regAddr	Register address (5 bits)

Returns: Register value

Definition at line 1543 of file am335x_eth_driver.c.

◆ am335xEthRxIrqHandler()

void am335xEthRxIrqHandler ( void )

Ethernet MAC receive interrupt.

Definition at line 1025 of file am335x_eth_driver.c.

◆ am335xEthSendPacketPort1()

error_t am335xEthSendPacketPort1	(	NetInterface *	interface,
		const NetBuffer *	buffer,
		size_t	offset,
		NetTxAncillary *	ancillary
	)

Send a packet (port 1)

Parameters

[in]	interface	Underlying network interface
[in]	buffer	Multi-part buffer containing the data to send
[in]	offset	Offset to the first data byte
[in]	ancillary	Additional options passed to the stack along with the packet

Returns: Error code

Definition at line 1206 of file am335x_eth_driver.c.

◆ am335xEthSendPacketPort2()

error_t am335xEthSendPacketPort2	(	NetInterface *	interface,
		const NetBuffer *	buffer,
		size_t	offset,
		NetTxAncillary *	ancillary
	)

Send a packet (port 2)

Parameters

[in]	interface	Underlying network interface
[in]	buffer	Multi-part buffer containing the data to send
[in]	offset	Offset to the first data byte
[in]	ancillary	Additional options passed to the stack along with the packet

Returns: Error code

Definition at line 1295 of file am335x_eth_driver.c.

◆ am335xEthTick()

void am335xEthTick ( NetInterface * interface )

AM335x Ethernet MAC timer handler.

This routine is periodically called by the TCP/IP stack to handle periodic operations such as polling the link state

Parameters

[in] interface Underlying network interface

Definition at line 821 of file am335x_eth_driver.c.

◆ am335xEthTxIrqHandler()

void am335xEthTxIrqHandler ( void )

Ethernet MAC transmit interrupt.

Definition at line 929 of file am335x_eth_driver.c.

◆ am335xEthUpdateMacAddrFilter()

error_t am335xEthUpdateMacAddrFilter ( NetInterface * interface )

Configure MAC address filtering.

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 1380 of file am335x_eth_driver.c.

◆ am335xEthUpdateMacConfig()

error_t am335xEthUpdateMacConfig ( NetInterface * interface )

Adjust MAC configuration parameters for proper operation.

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 1438 of file am335x_eth_driver.c.

◆ am335xEthWriteEntry()

void am335xEthWriteEntry	(	uint_t	index,
		const Am335xAleEntry *	entry
	)

Write an ALE table entry.

Parameters

[in]	index	Entry index
[in]	entry	Pointer to the ALE table entry

Definition at line 1586 of file am335x_eth_driver.c.

◆ am335xEthWritePhyReg()

void am335xEthWritePhyReg	(	uint8_t	opcode,
		uint8_t	phyAddr,
		uint8_t	regAddr,
		uint16_t	data
	)

Write PHY register.

Parameters

[in]	opcode	Access type (2 bits)
[in]	phyAddr	PHY address (5 bits)
[in]	regAddr	Register address (5 bits)
[in]	data	Register value

Definition at line 1504 of file am335x_eth_driver.c.

Variable Documentation

◆ am335xEthPort1Driver

const NicDriver am335xEthPort1Driver

Initial value:

=
{
   NIC_TYPE_ETHERNET,
   ETH_MTU,
   am335xEthInitPort1,
   am335xEthTick,
   am335xEthEnableIrq,
   am335xEthDisableIrq,
   am335xEthEventHandler,
   am335xEthSendPacketPort1,
   am335xEthUpdateMacAddrFilter,
   am335xEthUpdateMacConfig,
   am335xEthWritePhyReg,
   am335xEthReadPhyReg,
   FALSE,
   TRUE,
   TRUE,
   FALSE
}

AM335x Ethernet MAC driver (port1)

Definition at line 126 of file am335x_eth_driver.c.

◆ am335xEthPort2Driver

const NicDriver am335xEthPort2Driver

Initial value:

=
{
   NIC_TYPE_ETHERNET,
   ETH_MTU,
   am335xEthInitPort2,
   am335xEthTick,
   am335xEthEnableIrq,
   am335xEthDisableIrq,
   am335xEthEventHandler,
   am335xEthSendPacketPort2,
   am335xEthUpdateMacAddrFilter,
   am335xEthUpdateMacConfig,
   am335xEthWritePhyReg,
   am335xEthReadPhyReg,
   FALSE,
   TRUE,
   TRUE,
   FALSE
}

AM335x Ethernet MAC driver (port2)

Definition at line 151 of file am335x_eth_driver.c.

Macros

Functions

Variables

Detailed Description

License

Macro Definition Documentation

◆ MDIO_INPUT_CLK

◆ MDIO_OUTPUT_CLK

◆ TRACE_LEVEL

Function Documentation

◆ am335xEthAddVlanAddrEntry()

◆ am335xEthAddVlanEntry()

◆ am335xEthDeleteVlanAddrEntry()

◆ am335xEthDisableIrq()

◆ am335xEthEnableIrq()

◆ am335xEthEventHandler()

◆ am335xEthFindFreeEntry()

◆ am335xEthFindVlanAddrEntry()

◆ am335xEthFindVlanEntry()

◆ am335xEthInitBufferDesc()

◆ am335xEthInitGpio()

◆ am335xEthInitInstance()

◆ am335xEthInitPort1()

◆ am335xEthInitPort2()

◆ am335xEthReadEntry()

◆ am335xEthReadPhyReg()

◆ am335xEthRxIrqHandler()

◆ am335xEthSendPacketPort1()

◆ am335xEthSendPacketPort2()

◆ am335xEthTick()

◆ am335xEthTxIrqHandler()

◆ am335xEthUpdateMacAddrFilter()

◆ am335xEthUpdateMacConfig()

◆ am335xEthWriteEntry()

◆ am335xEthWritePhyReg()

Variable Documentation

◆ am335xEthPort1Driver

◆ am335xEthPort2Driver