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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5892cd135e
The cpsw currently lacks code to properly set up the hardware interface mode on AM33xx. Other platforms might be equally affected. Usually, the bootloader will configure the control module register, so probably that's why such support wasn't needed in the past. In suspend mode though, this register is modified, and so it needs reprogramming after resume. This patch adds a new driver in which hardware interface can configure correct register bits when the slave is opened. The AM33xx also has a bit for each slave to configure the RMII reference clock direction. Setting it is now supported by a per-slave DT property. This code path introducted by this patch is currently exclusive for am33xx and same can be extened to various platforms via the DT compatibility property. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Daniel Mack <zonque@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* Texas Instruments Ethernet Switch Driver
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*
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* Copyright (C) 2013 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
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* version 2 as published by the Free Software Foundation.
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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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struct cpsw_slave_data *slave_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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u32 active_slave; /* time stamping, ethtool and SIOCGMIIPHY 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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void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave);
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#endif /* __CPSW_H__ */
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