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The CPSW switch can act as Dual EMAC by segregating the switch ports using VLAN and port VLAN as per the TRM description in 14.3.2.10.2 Dual Mac Mode Following CPSW components will be common for both the interfaces. * Interrupt source is common for both eth interfaces * Interrupt pacing is common for both interfaces * Hardware statistics is common for all the ports * CPDMA is common for both eth interface * CPTS is common for both the interface and it should not be enabled on both the interface as timestamping information doesn't contain port information. Constrains * Reserved VID of One port should not be used in other interface which will enable switching functionality * Same VID must not be used in both the interface which will enable switching functionality Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* Texas Instruments Ethernet Switch Driver
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*
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* Copyright (C) 2012 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __CPSW_H__
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#define __CPSW_H__
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#include <linux/if_ether.h>
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struct cpsw_slave_data {
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char phy_id[MII_BUS_ID_SIZE];
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int phy_if;
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u8 mac_addr[ETH_ALEN];
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u16 dual_emac_res_vlan; /* Reserved VLAN for DualEMAC */
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};
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struct cpsw_platform_data {
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u32 ss_reg_ofs; /* Subsystem control register offset */
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u32 channels; /* number of cpdma channels (symmetric) */
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u32 slaves; /* number of slave cpgmac ports */
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struct cpsw_slave_data *slave_data;
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u32 cpts_active_slave; /* time stamping slave */
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u32 cpts_clock_mult; /* convert input clock ticks to nanoseconds */
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u32 cpts_clock_shift; /* convert input clock ticks to nanoseconds */
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u32 ale_entries; /* ale table size */
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u32 bd_ram_size; /*buffer descriptor ram size */
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u32 rx_descs; /* Number of Rx Descriptios */
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u32 mac_control; /* Mac control register */
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u16 default_vlan; /* Def VLAN for ALE lookup in VLAN aware mode*/
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bool dual_emac; /* Enable Dual EMAC mode */
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};
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#endif /* __CPSW_H__ */
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