mirror of https://github.com/hak5/openwrt.git
1237 lines
29 KiB
C
1237 lines
29 KiB
C
/*
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* ar8327.c: AR8216 switch driver
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*
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* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
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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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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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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#include <linux/list.h>
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#include <linux/bitops.h>
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#include <linux/switch.h>
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#include <linux/delay.h>
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#include <linux/phy.h>
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#include <linux/lockdep.h>
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#include <linux/ar8216_platform.h>
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#include <linux/workqueue.h>
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#include <linux/of_device.h>
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#include <linux/leds.h>
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#include <linux/mdio.h>
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#include "ar8216.h"
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#include "ar8327.h"
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extern const struct ar8xxx_mib_desc ar8236_mibs[39];
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extern const struct switch_attr ar8xxx_sw_attr_vlan[1];
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static u32
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ar8327_get_pad_cfg(struct ar8327_pad_cfg *cfg)
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{
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u32 t;
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if (!cfg)
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return 0;
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t = 0;
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switch (cfg->mode) {
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case AR8327_PAD_NC:
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break;
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case AR8327_PAD_MAC2MAC_MII:
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t = AR8327_PAD_MAC_MII_EN;
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if (cfg->rxclk_sel)
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t |= AR8327_PAD_MAC_MII_RXCLK_SEL;
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if (cfg->txclk_sel)
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t |= AR8327_PAD_MAC_MII_TXCLK_SEL;
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break;
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case AR8327_PAD_MAC2MAC_GMII:
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t = AR8327_PAD_MAC_GMII_EN;
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if (cfg->rxclk_sel)
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t |= AR8327_PAD_MAC_GMII_RXCLK_SEL;
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if (cfg->txclk_sel)
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t |= AR8327_PAD_MAC_GMII_TXCLK_SEL;
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break;
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case AR8327_PAD_MAC_SGMII:
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t = AR8327_PAD_SGMII_EN;
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/*
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* WAR for the QUalcomm Atheros AP136 board.
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* It seems that RGMII TX/RX delay settings needs to be
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* applied for SGMII mode as well, The ethernet is not
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* reliable without this.
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*/
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t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
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t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
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if (cfg->rxclk_delay_en)
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t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
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if (cfg->txclk_delay_en)
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t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
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if (cfg->sgmii_delay_en)
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t |= AR8327_PAD_SGMII_DELAY_EN;
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break;
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case AR8327_PAD_MAC2PHY_MII:
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t = AR8327_PAD_PHY_MII_EN;
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if (cfg->rxclk_sel)
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t |= AR8327_PAD_PHY_MII_RXCLK_SEL;
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if (cfg->txclk_sel)
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t |= AR8327_PAD_PHY_MII_TXCLK_SEL;
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break;
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case AR8327_PAD_MAC2PHY_GMII:
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t = AR8327_PAD_PHY_GMII_EN;
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if (cfg->pipe_rxclk_sel)
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t |= AR8327_PAD_PHY_GMII_PIPE_RXCLK_SEL;
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if (cfg->rxclk_sel)
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t |= AR8327_PAD_PHY_GMII_RXCLK_SEL;
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if (cfg->txclk_sel)
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t |= AR8327_PAD_PHY_GMII_TXCLK_SEL;
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break;
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case AR8327_PAD_MAC_RGMII:
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t = AR8327_PAD_RGMII_EN;
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t |= cfg->txclk_delay_sel << AR8327_PAD_RGMII_TXCLK_DELAY_SEL_S;
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t |= cfg->rxclk_delay_sel << AR8327_PAD_RGMII_RXCLK_DELAY_SEL_S;
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if (cfg->rxclk_delay_en)
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t |= AR8327_PAD_RGMII_RXCLK_DELAY_EN;
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if (cfg->txclk_delay_en)
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t |= AR8327_PAD_RGMII_TXCLK_DELAY_EN;
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break;
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case AR8327_PAD_PHY_GMII:
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t = AR8327_PAD_PHYX_GMII_EN;
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break;
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case AR8327_PAD_PHY_RGMII:
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t = AR8327_PAD_PHYX_RGMII_EN;
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break;
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case AR8327_PAD_PHY_MII:
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t = AR8327_PAD_PHYX_MII_EN;
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break;
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}
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return t;
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}
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static void
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ar8327_phy_fixup(struct ar8xxx_priv *priv, int phy)
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{
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switch (priv->chip_rev) {
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case 1:
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/* For 100M waveform */
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ar8xxx_phy_dbg_write(priv, phy, 0, 0x02ea);
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/* Turn on Gigabit clock */
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ar8xxx_phy_dbg_write(priv, phy, 0x3d, 0x68a0);
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break;
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case 2:
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ar8xxx_phy_mmd_write(priv, phy, 0x7, 0x3c);
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ar8xxx_phy_mmd_write(priv, phy, 0x4007, 0x0);
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/* fallthrough */
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case 4:
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ar8xxx_phy_mmd_write(priv, phy, 0x3, 0x800d);
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ar8xxx_phy_mmd_write(priv, phy, 0x4003, 0x803f);
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ar8xxx_phy_dbg_write(priv, phy, 0x3d, 0x6860);
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ar8xxx_phy_dbg_write(priv, phy, 0x5, 0x2c46);
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ar8xxx_phy_dbg_write(priv, phy, 0x3c, 0x6000);
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break;
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}
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}
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static u32
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ar8327_get_port_init_status(struct ar8327_port_cfg *cfg)
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{
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u32 t;
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if (!cfg->force_link)
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return AR8216_PORT_STATUS_LINK_AUTO;
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t = AR8216_PORT_STATUS_TXMAC | AR8216_PORT_STATUS_RXMAC;
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t |= cfg->duplex ? AR8216_PORT_STATUS_DUPLEX : 0;
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t |= cfg->rxpause ? AR8216_PORT_STATUS_RXFLOW : 0;
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t |= cfg->txpause ? AR8216_PORT_STATUS_TXFLOW : 0;
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switch (cfg->speed) {
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case AR8327_PORT_SPEED_10:
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t |= AR8216_PORT_SPEED_10M;
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break;
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case AR8327_PORT_SPEED_100:
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t |= AR8216_PORT_SPEED_100M;
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break;
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case AR8327_PORT_SPEED_1000:
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t |= AR8216_PORT_SPEED_1000M;
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break;
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}
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return t;
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}
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#define AR8327_LED_ENTRY(_num, _reg, _shift) \
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[_num] = { .reg = (_reg), .shift = (_shift) }
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static const struct ar8327_led_entry
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ar8327_led_map[AR8327_NUM_LEDS] = {
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AR8327_LED_ENTRY(AR8327_LED_PHY0_0, 0, 14),
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AR8327_LED_ENTRY(AR8327_LED_PHY0_1, 1, 14),
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AR8327_LED_ENTRY(AR8327_LED_PHY0_2, 2, 14),
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AR8327_LED_ENTRY(AR8327_LED_PHY1_0, 3, 8),
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AR8327_LED_ENTRY(AR8327_LED_PHY1_1, 3, 10),
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AR8327_LED_ENTRY(AR8327_LED_PHY1_2, 3, 12),
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AR8327_LED_ENTRY(AR8327_LED_PHY2_0, 3, 14),
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AR8327_LED_ENTRY(AR8327_LED_PHY2_1, 3, 16),
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AR8327_LED_ENTRY(AR8327_LED_PHY2_2, 3, 18),
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AR8327_LED_ENTRY(AR8327_LED_PHY3_0, 3, 20),
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AR8327_LED_ENTRY(AR8327_LED_PHY3_1, 3, 22),
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AR8327_LED_ENTRY(AR8327_LED_PHY3_2, 3, 24),
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AR8327_LED_ENTRY(AR8327_LED_PHY4_0, 0, 30),
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AR8327_LED_ENTRY(AR8327_LED_PHY4_1, 1, 30),
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AR8327_LED_ENTRY(AR8327_LED_PHY4_2, 2, 30),
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};
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static void
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ar8327_set_led_pattern(struct ar8xxx_priv *priv, unsigned int led_num,
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enum ar8327_led_pattern pattern)
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{
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const struct ar8327_led_entry *entry;
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entry = &ar8327_led_map[led_num];
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ar8xxx_rmw(priv, AR8327_REG_LED_CTRL(entry->reg),
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(3 << entry->shift), pattern << entry->shift);
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}
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static void
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ar8327_led_work_func(struct work_struct *work)
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{
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struct ar8327_led *aled;
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u8 pattern;
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aled = container_of(work, struct ar8327_led, led_work);
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spin_lock(&aled->lock);
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pattern = aled->pattern;
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spin_unlock(&aled->lock);
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ar8327_set_led_pattern(aled->sw_priv, aled->led_num,
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pattern);
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}
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static void
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ar8327_led_schedule_change(struct ar8327_led *aled, u8 pattern)
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{
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if (aled->pattern == pattern)
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return;
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aled->pattern = pattern;
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schedule_work(&aled->led_work);
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}
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static inline struct ar8327_led *
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led_cdev_to_ar8327_led(struct led_classdev *led_cdev)
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{
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return container_of(led_cdev, struct ar8327_led, cdev);
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}
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static int
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ar8327_led_blink_set(struct led_classdev *led_cdev,
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unsigned long *delay_on,
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unsigned long *delay_off)
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{
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struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
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if (*delay_on == 0 && *delay_off == 0) {
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*delay_on = 125;
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*delay_off = 125;
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}
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if (*delay_on != 125 || *delay_off != 125) {
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/*
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* The hardware only supports blinking at 4Hz. Fall back
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* to software implementation in other cases.
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*/
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return -EINVAL;
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}
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spin_lock(&aled->lock);
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aled->enable_hw_mode = false;
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ar8327_led_schedule_change(aled, AR8327_LED_PATTERN_BLINK);
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spin_unlock(&aled->lock);
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return 0;
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}
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static void
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ar8327_led_set_brightness(struct led_classdev *led_cdev,
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enum led_brightness brightness)
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{
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struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
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u8 pattern;
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bool active;
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active = (brightness != LED_OFF);
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active ^= aled->active_low;
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pattern = (active) ? AR8327_LED_PATTERN_ON :
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AR8327_LED_PATTERN_OFF;
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spin_lock(&aled->lock);
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aled->enable_hw_mode = false;
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ar8327_led_schedule_change(aled, pattern);
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spin_unlock(&aled->lock);
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}
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static ssize_t
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ar8327_led_enable_hw_mode_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
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ssize_t ret = 0;
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spin_lock(&aled->lock);
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ret += sprintf(buf, "%d\n", aled->enable_hw_mode);
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spin_unlock(&aled->lock);
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return ret;
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}
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static ssize_t
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ar8327_led_enable_hw_mode_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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size_t size)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
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u8 pattern;
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u8 value;
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int ret;
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ret = kstrtou8(buf, 10, &value);
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if (ret < 0)
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return -EINVAL;
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spin_lock(&aled->lock);
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aled->enable_hw_mode = !!value;
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if (aled->enable_hw_mode)
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pattern = AR8327_LED_PATTERN_RULE;
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else
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pattern = AR8327_LED_PATTERN_OFF;
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ar8327_led_schedule_change(aled, pattern);
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spin_unlock(&aled->lock);
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return size;
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}
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static DEVICE_ATTR(enable_hw_mode, S_IRUGO | S_IWUSR,
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ar8327_led_enable_hw_mode_show,
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ar8327_led_enable_hw_mode_store);
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static int
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ar8327_led_register(struct ar8327_led *aled)
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{
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int ret;
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ret = led_classdev_register(NULL, &aled->cdev);
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if (ret < 0)
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return ret;
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if (aled->mode == AR8327_LED_MODE_HW) {
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ret = device_create_file(aled->cdev.dev,
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&dev_attr_enable_hw_mode);
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if (ret)
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goto err_unregister;
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}
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return 0;
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err_unregister:
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led_classdev_unregister(&aled->cdev);
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return ret;
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}
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static void
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ar8327_led_unregister(struct ar8327_led *aled)
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{
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if (aled->mode == AR8327_LED_MODE_HW)
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device_remove_file(aled->cdev.dev, &dev_attr_enable_hw_mode);
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led_classdev_unregister(&aled->cdev);
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cancel_work_sync(&aled->led_work);
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}
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static int
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ar8327_led_create(struct ar8xxx_priv *priv,
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const struct ar8327_led_info *led_info)
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{
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struct ar8327_data *data = priv->chip_data;
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struct ar8327_led *aled;
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int ret;
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if (!IS_ENABLED(CONFIG_AR8216_PHY_LEDS))
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return 0;
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if (!led_info->name)
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return -EINVAL;
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if (led_info->led_num >= AR8327_NUM_LEDS)
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return -EINVAL;
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aled = kzalloc(sizeof(*aled) + strlen(led_info->name) + 1,
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GFP_KERNEL);
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if (!aled)
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return -ENOMEM;
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aled->sw_priv = priv;
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aled->led_num = led_info->led_num;
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aled->active_low = led_info->active_low;
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aled->mode = led_info->mode;
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if (aled->mode == AR8327_LED_MODE_HW)
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aled->enable_hw_mode = true;
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aled->name = (char *)(aled + 1);
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strcpy(aled->name, led_info->name);
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aled->cdev.name = aled->name;
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aled->cdev.brightness_set = ar8327_led_set_brightness;
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aled->cdev.blink_set = ar8327_led_blink_set;
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aled->cdev.default_trigger = led_info->default_trigger;
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spin_lock_init(&aled->lock);
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mutex_init(&aled->mutex);
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INIT_WORK(&aled->led_work, ar8327_led_work_func);
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ret = ar8327_led_register(aled);
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if (ret)
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goto err_free;
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data->leds[data->num_leds++] = aled;
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return 0;
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err_free:
|
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kfree(aled);
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return ret;
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}
|
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|
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static void
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ar8327_led_destroy(struct ar8327_led *aled)
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{
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ar8327_led_unregister(aled);
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kfree(aled);
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}
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|
|
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static void
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ar8327_leds_init(struct ar8xxx_priv *priv)
|
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{
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struct ar8327_data *data = priv->chip_data;
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unsigned i;
|
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|
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if (!IS_ENABLED(CONFIG_AR8216_PHY_LEDS))
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return;
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for (i = 0; i < data->num_leds; i++) {
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struct ar8327_led *aled;
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|
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aled = data->leds[i];
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|
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if (aled->enable_hw_mode)
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aled->pattern = AR8327_LED_PATTERN_RULE;
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else
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aled->pattern = AR8327_LED_PATTERN_OFF;
|
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|
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ar8327_set_led_pattern(priv, aled->led_num, aled->pattern);
|
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}
|
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}
|
|
|
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static void
|
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ar8327_leds_cleanup(struct ar8xxx_priv *priv)
|
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{
|
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struct ar8327_data *data = priv->chip_data;
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unsigned i;
|
|
|
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if (!IS_ENABLED(CONFIG_AR8216_PHY_LEDS))
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return;
|
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|
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for (i = 0; i < data->num_leds; i++) {
|
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struct ar8327_led *aled;
|
|
|
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aled = data->leds[i];
|
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ar8327_led_destroy(aled);
|
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}
|
|
|
|
kfree(data->leds);
|
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}
|
|
|
|
static int
|
|
ar8327_hw_config_pdata(struct ar8xxx_priv *priv,
|
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struct ar8327_platform_data *pdata)
|
|
{
|
|
struct ar8327_led_cfg *led_cfg;
|
|
struct ar8327_data *data = priv->chip_data;
|
|
u32 pos, new_pos;
|
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u32 t;
|
|
|
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if (!pdata)
|
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return -EINVAL;
|
|
|
|
priv->get_port_link = pdata->get_port_link;
|
|
|
|
data->port0_status = ar8327_get_port_init_status(&pdata->port0_cfg);
|
|
data->port6_status = ar8327_get_port_init_status(&pdata->port6_cfg);
|
|
|
|
t = ar8327_get_pad_cfg(pdata->pad0_cfg);
|
|
if (chip_is_ar8337(priv))
|
|
t |= AR8337_PAD_MAC06_EXCHANGE_EN;
|
|
|
|
ar8xxx_write(priv, AR8327_REG_PAD0_MODE, t);
|
|
t = ar8327_get_pad_cfg(pdata->pad5_cfg);
|
|
ar8xxx_write(priv, AR8327_REG_PAD5_MODE, t);
|
|
t = ar8327_get_pad_cfg(pdata->pad6_cfg);
|
|
ar8xxx_write(priv, AR8327_REG_PAD6_MODE, t);
|
|
|
|
pos = ar8xxx_read(priv, AR8327_REG_POWER_ON_STRIP);
|
|
new_pos = pos;
|
|
|
|
led_cfg = pdata->led_cfg;
|
|
if (led_cfg) {
|
|
if (led_cfg->open_drain)
|
|
new_pos |= AR8327_POWER_ON_STRIP_LED_OPEN_EN;
|
|
else
|
|
new_pos &= ~AR8327_POWER_ON_STRIP_LED_OPEN_EN;
|
|
|
|
ar8xxx_write(priv, AR8327_REG_LED_CTRL0, led_cfg->led_ctrl0);
|
|
ar8xxx_write(priv, AR8327_REG_LED_CTRL1, led_cfg->led_ctrl1);
|
|
ar8xxx_write(priv, AR8327_REG_LED_CTRL2, led_cfg->led_ctrl2);
|
|
ar8xxx_write(priv, AR8327_REG_LED_CTRL3, led_cfg->led_ctrl3);
|
|
|
|
if (new_pos != pos)
|
|
new_pos |= AR8327_POWER_ON_STRIP_POWER_ON_SEL;
|
|
}
|
|
|
|
if (pdata->sgmii_cfg) {
|
|
t = pdata->sgmii_cfg->sgmii_ctrl;
|
|
if (priv->chip_rev == 1)
|
|
t |= AR8327_SGMII_CTRL_EN_PLL |
|
|
AR8327_SGMII_CTRL_EN_RX |
|
|
AR8327_SGMII_CTRL_EN_TX;
|
|
else
|
|
t &= ~(AR8327_SGMII_CTRL_EN_PLL |
|
|
AR8327_SGMII_CTRL_EN_RX |
|
|
AR8327_SGMII_CTRL_EN_TX);
|
|
|
|
ar8xxx_write(priv, AR8327_REG_SGMII_CTRL, t);
|
|
|
|
if (pdata->sgmii_cfg->serdes_aen)
|
|
new_pos &= ~AR8327_POWER_ON_STRIP_SERDES_AEN;
|
|
else
|
|
new_pos |= AR8327_POWER_ON_STRIP_SERDES_AEN;
|
|
}
|
|
|
|
ar8xxx_write(priv, AR8327_REG_POWER_ON_STRIP, new_pos);
|
|
|
|
if (pdata->leds && pdata->num_leds) {
|
|
int i;
|
|
|
|
data->leds = kzalloc(pdata->num_leds * sizeof(void *),
|
|
GFP_KERNEL);
|
|
if (!data->leds)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < pdata->num_leds; i++)
|
|
ar8327_led_create(priv, &pdata->leds[i]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static int
|
|
ar8327_hw_config_of(struct ar8xxx_priv *priv, struct device_node *np)
|
|
{
|
|
struct ar8327_data *data = priv->chip_data;
|
|
const __be32 *paddr;
|
|
int len;
|
|
int i;
|
|
|
|
paddr = of_get_property(np, "qca,ar8327-initvals", &len);
|
|
if (!paddr || len < (2 * sizeof(*paddr)))
|
|
return -EINVAL;
|
|
|
|
len /= sizeof(*paddr);
|
|
|
|
for (i = 0; i < len - 1; i += 2) {
|
|
u32 reg;
|
|
u32 val;
|
|
|
|
reg = be32_to_cpup(paddr + i);
|
|
val = be32_to_cpup(paddr + i + 1);
|
|
|
|
switch (reg) {
|
|
case AR8327_REG_PORT_STATUS(0):
|
|
data->port0_status = val;
|
|
break;
|
|
case AR8327_REG_PORT_STATUS(6):
|
|
data->port6_status = val;
|
|
break;
|
|
default:
|
|
ar8xxx_write(priv, reg, val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static inline int
|
|
ar8327_hw_config_of(struct ar8xxx_priv *priv, struct device_node *np)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
ar8327_hw_init(struct ar8xxx_priv *priv)
|
|
{
|
|
int ret;
|
|
|
|
priv->chip_data = kzalloc(sizeof(struct ar8327_data), GFP_KERNEL);
|
|
if (!priv->chip_data)
|
|
return -ENOMEM;
|
|
|
|
if (priv->phy->dev.of_node)
|
|
ret = ar8327_hw_config_of(priv, priv->phy->dev.of_node);
|
|
else
|
|
ret = ar8327_hw_config_pdata(priv,
|
|
priv->phy->dev.platform_data);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
ar8327_leds_init(priv);
|
|
|
|
ar8xxx_phy_init(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8327_cleanup(struct ar8xxx_priv *priv)
|
|
{
|
|
ar8327_leds_cleanup(priv);
|
|
}
|
|
|
|
static void
|
|
ar8327_init_globals(struct ar8xxx_priv *priv)
|
|
{
|
|
struct ar8327_data *data = priv->chip_data;
|
|
u32 t;
|
|
int i;
|
|
|
|
/* enable CPU port and disable mirror port */
|
|
t = AR8327_FWD_CTRL0_CPU_PORT_EN |
|
|
AR8327_FWD_CTRL0_MIRROR_PORT;
|
|
ar8xxx_write(priv, AR8327_REG_FWD_CTRL0, t);
|
|
|
|
/* forward multicast and broadcast frames to CPU */
|
|
t = (AR8327_PORTS_ALL << AR8327_FWD_CTRL1_UC_FLOOD_S) |
|
|
(AR8327_PORTS_ALL << AR8327_FWD_CTRL1_MC_FLOOD_S) |
|
|
(AR8327_PORTS_ALL << AR8327_FWD_CTRL1_BC_FLOOD_S);
|
|
ar8xxx_write(priv, AR8327_REG_FWD_CTRL1, t);
|
|
|
|
/* enable jumbo frames */
|
|
ar8xxx_rmw(priv, AR8327_REG_MAX_FRAME_SIZE,
|
|
AR8327_MAX_FRAME_SIZE_MTU, 9018 + 8 + 2);
|
|
|
|
/* Enable MIB counters */
|
|
ar8xxx_reg_set(priv, AR8327_REG_MODULE_EN,
|
|
AR8327_MODULE_EN_MIB);
|
|
|
|
/* Disable EEE on all phy's due to stability issues */
|
|
for (i = 0; i < AR8XXX_NUM_PHYS; i++)
|
|
data->eee[i] = false;
|
|
}
|
|
|
|
static void
|
|
ar8327_init_port(struct ar8xxx_priv *priv, int port)
|
|
{
|
|
struct ar8327_data *data = priv->chip_data;
|
|
u32 t;
|
|
|
|
if (port == AR8216_PORT_CPU)
|
|
t = data->port0_status;
|
|
else if (port == 6)
|
|
t = data->port6_status;
|
|
else
|
|
t = AR8216_PORT_STATUS_LINK_AUTO;
|
|
|
|
ar8xxx_write(priv, AR8327_REG_PORT_STATUS(port), t);
|
|
ar8xxx_write(priv, AR8327_REG_PORT_HEADER(port), 0);
|
|
|
|
t = 1 << AR8327_PORT_VLAN0_DEF_SVID_S;
|
|
t |= 1 << AR8327_PORT_VLAN0_DEF_CVID_S;
|
|
ar8xxx_write(priv, AR8327_REG_PORT_VLAN0(port), t);
|
|
|
|
t = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH << AR8327_PORT_VLAN1_OUT_MODE_S;
|
|
ar8xxx_write(priv, AR8327_REG_PORT_VLAN1(port), t);
|
|
|
|
t = AR8327_PORT_LOOKUP_LEARN;
|
|
t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
|
|
ar8xxx_write(priv, AR8327_REG_PORT_LOOKUP(port), t);
|
|
}
|
|
|
|
static u32
|
|
ar8327_read_port_status(struct ar8xxx_priv *priv, int port)
|
|
{
|
|
u32 t;
|
|
|
|
t = ar8xxx_read(priv, AR8327_REG_PORT_STATUS(port));
|
|
/* map the flow control autoneg result bits to the flow control bits
|
|
* used in forced mode to allow ar8216_read_port_link detect
|
|
* flow control properly if autoneg is used
|
|
*/
|
|
if (t & AR8216_PORT_STATUS_LINK_UP &&
|
|
t & AR8216_PORT_STATUS_LINK_AUTO) {
|
|
t &= ~(AR8216_PORT_STATUS_TXFLOW | AR8216_PORT_STATUS_RXFLOW);
|
|
if (t & AR8327_PORT_STATUS_TXFLOW_AUTO)
|
|
t |= AR8216_PORT_STATUS_TXFLOW;
|
|
if (t & AR8327_PORT_STATUS_RXFLOW_AUTO)
|
|
t |= AR8216_PORT_STATUS_RXFLOW;
|
|
}
|
|
|
|
return t;
|
|
}
|
|
|
|
static u32
|
|
ar8327_read_port_eee_status(struct ar8xxx_priv *priv, int port)
|
|
{
|
|
int phy;
|
|
u16 t;
|
|
|
|
if (port >= priv->dev.ports)
|
|
return 0;
|
|
|
|
if (port == 0 || port == 6)
|
|
return 0;
|
|
|
|
phy = port - 1;
|
|
|
|
/* EEE Ability Auto-negotiation Result */
|
|
ar8xxx_phy_mmd_write(priv, phy, 0x7, 0x8000);
|
|
t = ar8xxx_phy_mmd_read(priv, phy, 0x4007);
|
|
|
|
return mmd_eee_adv_to_ethtool_adv_t(t);
|
|
}
|
|
|
|
static int
|
|
ar8327_atu_flush(struct ar8xxx_priv *priv)
|
|
{
|
|
int ret;
|
|
|
|
ret = ar8216_wait_bit(priv, AR8327_REG_ATU_FUNC,
|
|
AR8327_ATU_FUNC_BUSY, 0);
|
|
if (!ret)
|
|
ar8xxx_write(priv, AR8327_REG_ATU_FUNC,
|
|
AR8327_ATU_FUNC_OP_FLUSH |
|
|
AR8327_ATU_FUNC_BUSY);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
ar8327_vtu_op(struct ar8xxx_priv *priv, u32 op, u32 val)
|
|
{
|
|
if (ar8216_wait_bit(priv, AR8327_REG_VTU_FUNC1,
|
|
AR8327_VTU_FUNC1_BUSY, 0))
|
|
return;
|
|
|
|
if ((op & AR8327_VTU_FUNC1_OP) == AR8327_VTU_FUNC1_OP_LOAD)
|
|
ar8xxx_write(priv, AR8327_REG_VTU_FUNC0, val);
|
|
|
|
op |= AR8327_VTU_FUNC1_BUSY;
|
|
ar8xxx_write(priv, AR8327_REG_VTU_FUNC1, op);
|
|
}
|
|
|
|
static void
|
|
ar8327_vtu_flush(struct ar8xxx_priv *priv)
|
|
{
|
|
ar8327_vtu_op(priv, AR8327_VTU_FUNC1_OP_FLUSH, 0);
|
|
}
|
|
|
|
static void
|
|
ar8327_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
|
|
{
|
|
u32 op;
|
|
u32 val;
|
|
int i;
|
|
|
|
op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S);
|
|
val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL;
|
|
for (i = 0; i < AR8327_NUM_PORTS; i++) {
|
|
u32 mode;
|
|
|
|
if ((port_mask & BIT(i)) == 0)
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_NOT;
|
|
else if (priv->vlan == 0)
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_KEEP;
|
|
else if ((priv->vlan_tagged & BIT(i)) || (priv->vlan_id[priv->pvid[i]] != vid))
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
|
|
else
|
|
mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;
|
|
|
|
val |= mode << AR8327_VTU_FUNC0_EG_MODE_S(i);
|
|
}
|
|
ar8327_vtu_op(priv, op, val);
|
|
}
|
|
|
|
static void
|
|
ar8327_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
|
|
{
|
|
u32 t;
|
|
u32 egress, ingress;
|
|
u32 pvid = priv->vlan_id[priv->pvid[port]];
|
|
|
|
if (priv->vlan) {
|
|
egress = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
|
|
ingress = AR8216_IN_SECURE;
|
|
} else {
|
|
egress = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
|
|
ingress = AR8216_IN_PORT_ONLY;
|
|
}
|
|
|
|
t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S;
|
|
t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S;
|
|
ar8xxx_write(priv, AR8327_REG_PORT_VLAN0(port), t);
|
|
|
|
t = AR8327_PORT_VLAN1_PORT_VLAN_PROP;
|
|
t |= egress << AR8327_PORT_VLAN1_OUT_MODE_S;
|
|
ar8xxx_write(priv, AR8327_REG_PORT_VLAN1(port), t);
|
|
|
|
t = members;
|
|
t |= AR8327_PORT_LOOKUP_LEARN;
|
|
t |= ingress << AR8327_PORT_LOOKUP_IN_MODE_S;
|
|
t |= AR8216_PORT_STATE_FORWARD << AR8327_PORT_LOOKUP_STATE_S;
|
|
ar8xxx_write(priv, AR8327_REG_PORT_LOOKUP(port), t);
|
|
}
|
|
|
|
static int
|
|
ar8327_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
u8 ports = priv->vlan_table[val->port_vlan];
|
|
int i;
|
|
|
|
val->len = 0;
|
|
for (i = 0; i < dev->ports; i++) {
|
|
struct switch_port *p;
|
|
|
|
if (!(ports & (1 << i)))
|
|
continue;
|
|
|
|
p = &val->value.ports[val->len++];
|
|
p->id = i;
|
|
if ((priv->vlan_tagged & (1 << i)) || (priv->pvid[i] != val->port_vlan))
|
|
p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
|
|
else
|
|
p->flags = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8327_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
u8 *vt = &priv->vlan_table[val->port_vlan];
|
|
int i;
|
|
|
|
*vt = 0;
|
|
for (i = 0; i < val->len; i++) {
|
|
struct switch_port *p = &val->value.ports[i];
|
|
|
|
if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
|
|
if (val->port_vlan == priv->pvid[p->id]) {
|
|
priv->vlan_tagged |= (1 << p->id);
|
|
}
|
|
} else {
|
|
priv->vlan_tagged &= ~(1 << p->id);
|
|
priv->pvid[p->id] = val->port_vlan;
|
|
}
|
|
|
|
*vt |= 1 << p->id;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8327_set_mirror_regs(struct ar8xxx_priv *priv)
|
|
{
|
|
int port;
|
|
|
|
/* reset all mirror registers */
|
|
ar8xxx_rmw(priv, AR8327_REG_FWD_CTRL0,
|
|
AR8327_FWD_CTRL0_MIRROR_PORT,
|
|
(0xF << AR8327_FWD_CTRL0_MIRROR_PORT_S));
|
|
for (port = 0; port < AR8327_NUM_PORTS; port++) {
|
|
ar8xxx_reg_clear(priv, AR8327_REG_PORT_LOOKUP(port),
|
|
AR8327_PORT_LOOKUP_ING_MIRROR_EN);
|
|
|
|
ar8xxx_reg_clear(priv, AR8327_REG_PORT_HOL_CTRL1(port),
|
|
AR8327_PORT_HOL_CTRL1_EG_MIRROR_EN);
|
|
}
|
|
|
|
/* now enable mirroring if necessary */
|
|
if (priv->source_port >= AR8327_NUM_PORTS ||
|
|
priv->monitor_port >= AR8327_NUM_PORTS ||
|
|
priv->source_port == priv->monitor_port) {
|
|
return;
|
|
}
|
|
|
|
ar8xxx_rmw(priv, AR8327_REG_FWD_CTRL0,
|
|
AR8327_FWD_CTRL0_MIRROR_PORT,
|
|
(priv->monitor_port << AR8327_FWD_CTRL0_MIRROR_PORT_S));
|
|
|
|
if (priv->mirror_rx)
|
|
ar8xxx_reg_set(priv, AR8327_REG_PORT_LOOKUP(priv->source_port),
|
|
AR8327_PORT_LOOKUP_ING_MIRROR_EN);
|
|
|
|
if (priv->mirror_tx)
|
|
ar8xxx_reg_set(priv, AR8327_REG_PORT_HOL_CTRL1(priv->source_port),
|
|
AR8327_PORT_HOL_CTRL1_EG_MIRROR_EN);
|
|
}
|
|
|
|
static int
|
|
ar8327_sw_set_eee(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
struct ar8327_data *data = priv->chip_data;
|
|
int port = val->port_vlan;
|
|
int phy;
|
|
|
|
if (port >= dev->ports)
|
|
return -EINVAL;
|
|
if (port == 0 || port == 6)
|
|
return -EOPNOTSUPP;
|
|
|
|
phy = port - 1;
|
|
|
|
data->eee[phy] = !!(val->value.i);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ar8327_sw_get_eee(struct switch_dev *dev,
|
|
const struct switch_attr *attr,
|
|
struct switch_val *val)
|
|
{
|
|
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
|
|
const struct ar8327_data *data = priv->chip_data;
|
|
int port = val->port_vlan;
|
|
int phy;
|
|
|
|
if (port >= dev->ports)
|
|
return -EINVAL;
|
|
if (port == 0 || port == 6)
|
|
return -EOPNOTSUPP;
|
|
|
|
phy = port - 1;
|
|
|
|
val->value.i = data->eee[phy];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
ar8327_wait_atu_ready(struct ar8xxx_priv *priv, u16 r2, u16 r1)
|
|
{
|
|
int timeout = 20;
|
|
|
|
while (mii_read32(priv, r2, r1) & AR8327_ATU_FUNC_BUSY && --timeout)
|
|
udelay(10);
|
|
|
|
if (!timeout)
|
|
pr_err("ar8327: timeout waiting for atu to become ready\n");
|
|
}
|
|
|
|
static void ar8327_get_arl_entry(struct ar8xxx_priv *priv,
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struct arl_entry *a, u32 *status, enum arl_op op)
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{
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struct mii_bus *bus = priv->mii_bus;
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u16 r2, page;
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u16 r1_data0, r1_data1, r1_data2, r1_func;
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u32 t, val0, val1, val2;
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int i;
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split_addr(AR8327_REG_ATU_DATA0, &r1_data0, &r2, &page);
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r2 |= 0x10;
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r1_data1 = (AR8327_REG_ATU_DATA1 >> 1) & 0x1e;
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r1_data2 = (AR8327_REG_ATU_DATA2 >> 1) & 0x1e;
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r1_func = (AR8327_REG_ATU_FUNC >> 1) & 0x1e;
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switch (op) {
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case AR8XXX_ARL_INITIALIZE:
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/* all ATU registers are on the same page
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* therefore set page only once
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*/
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bus->write(bus, 0x18, 0, page);
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wait_for_page_switch();
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ar8327_wait_atu_ready(priv, r2, r1_func);
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mii_write32(priv, r2, r1_data0, 0);
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mii_write32(priv, r2, r1_data1, 0);
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mii_write32(priv, r2, r1_data2, 0);
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break;
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case AR8XXX_ARL_GET_NEXT:
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mii_write32(priv, r2, r1_func,
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AR8327_ATU_FUNC_OP_GET_NEXT |
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AR8327_ATU_FUNC_BUSY);
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ar8327_wait_atu_ready(priv, r2, r1_func);
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val0 = mii_read32(priv, r2, r1_data0);
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val1 = mii_read32(priv, r2, r1_data1);
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val2 = mii_read32(priv, r2, r1_data2);
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*status = val2 & AR8327_ATU_STATUS;
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if (!*status)
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break;
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i = 0;
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t = AR8327_ATU_PORT0;
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while (!(val1 & t) && ++i < AR8327_NUM_PORTS)
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t <<= 1;
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a->port = i;
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a->mac[0] = (val0 & AR8327_ATU_ADDR0) >> AR8327_ATU_ADDR0_S;
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a->mac[1] = (val0 & AR8327_ATU_ADDR1) >> AR8327_ATU_ADDR1_S;
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a->mac[2] = (val0 & AR8327_ATU_ADDR2) >> AR8327_ATU_ADDR2_S;
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a->mac[3] = (val0 & AR8327_ATU_ADDR3) >> AR8327_ATU_ADDR3_S;
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a->mac[4] = (val1 & AR8327_ATU_ADDR4) >> AR8327_ATU_ADDR4_S;
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a->mac[5] = (val1 & AR8327_ATU_ADDR5) >> AR8327_ATU_ADDR5_S;
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break;
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}
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}
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static int
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ar8327_sw_hw_apply(struct switch_dev *dev)
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{
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struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
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const struct ar8327_data *data = priv->chip_data;
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int ret, i;
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ret = ar8xxx_sw_hw_apply(dev);
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if (ret)
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return ret;
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for (i=0; i < AR8XXX_NUM_PHYS; i++) {
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if (data->eee[i])
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ar8xxx_reg_clear(priv, AR8327_REG_EEE_CTRL,
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AR8327_EEE_CTRL_DISABLE_PHY(i));
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else
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ar8xxx_reg_set(priv, AR8327_REG_EEE_CTRL,
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AR8327_EEE_CTRL_DISABLE_PHY(i));
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}
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|
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return 0;
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}
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|
|
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static const struct switch_attr ar8327_sw_attr_globals[] = {
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{
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.type = SWITCH_TYPE_INT,
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.name = "enable_vlan",
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.description = "Enable VLAN mode",
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.set = ar8xxx_sw_set_vlan,
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.get = ar8xxx_sw_get_vlan,
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.max = 1
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},
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{
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.type = SWITCH_TYPE_NOVAL,
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.name = "reset_mibs",
|
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.description = "Reset all MIB counters",
|
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.set = ar8xxx_sw_set_reset_mibs,
|
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},
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{
|
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.type = SWITCH_TYPE_INT,
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.name = "enable_mirror_rx",
|
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.description = "Enable mirroring of RX packets",
|
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.set = ar8xxx_sw_set_mirror_rx_enable,
|
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.get = ar8xxx_sw_get_mirror_rx_enable,
|
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.max = 1
|
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},
|
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{
|
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.type = SWITCH_TYPE_INT,
|
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.name = "enable_mirror_tx",
|
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.description = "Enable mirroring of TX packets",
|
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.set = ar8xxx_sw_set_mirror_tx_enable,
|
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.get = ar8xxx_sw_get_mirror_tx_enable,
|
|
.max = 1
|
|
},
|
|
{
|
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.type = SWITCH_TYPE_INT,
|
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.name = "mirror_monitor_port",
|
|
.description = "Mirror monitor port",
|
|
.set = ar8xxx_sw_set_mirror_monitor_port,
|
|
.get = ar8xxx_sw_get_mirror_monitor_port,
|
|
.max = AR8327_NUM_PORTS - 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "mirror_source_port",
|
|
.description = "Mirror source port",
|
|
.set = ar8xxx_sw_set_mirror_source_port,
|
|
.get = ar8xxx_sw_get_mirror_source_port,
|
|
.max = AR8327_NUM_PORTS - 1
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_STRING,
|
|
.name = "arl_table",
|
|
.description = "Get ARL table",
|
|
.set = NULL,
|
|
.get = ar8xxx_sw_get_arl_table,
|
|
},
|
|
};
|
|
|
|
static const struct switch_attr ar8327_sw_attr_port[] = {
|
|
{
|
|
.type = SWITCH_TYPE_NOVAL,
|
|
.name = "reset_mib",
|
|
.description = "Reset single port MIB counters",
|
|
.set = ar8xxx_sw_set_port_reset_mib,
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_STRING,
|
|
.name = "mib",
|
|
.description = "Get port's MIB counters",
|
|
.set = NULL,
|
|
.get = ar8xxx_sw_get_port_mib,
|
|
},
|
|
{
|
|
.type = SWITCH_TYPE_INT,
|
|
.name = "enable_eee",
|
|
.description = "Enable EEE PHY sleep mode",
|
|
.set = ar8327_sw_set_eee,
|
|
.get = ar8327_sw_get_eee,
|
|
.max = 1,
|
|
},
|
|
};
|
|
|
|
static const struct switch_dev_ops ar8327_sw_ops = {
|
|
.attr_global = {
|
|
.attr = ar8327_sw_attr_globals,
|
|
.n_attr = ARRAY_SIZE(ar8327_sw_attr_globals),
|
|
},
|
|
.attr_port = {
|
|
.attr = ar8327_sw_attr_port,
|
|
.n_attr = ARRAY_SIZE(ar8327_sw_attr_port),
|
|
},
|
|
.attr_vlan = {
|
|
.attr = ar8xxx_sw_attr_vlan,
|
|
.n_attr = ARRAY_SIZE(ar8xxx_sw_attr_vlan),
|
|
},
|
|
.get_port_pvid = ar8xxx_sw_get_pvid,
|
|
.set_port_pvid = ar8xxx_sw_set_pvid,
|
|
.get_vlan_ports = ar8327_sw_get_ports,
|
|
.set_vlan_ports = ar8327_sw_set_ports,
|
|
.apply_config = ar8327_sw_hw_apply,
|
|
.reset_switch = ar8xxx_sw_reset_switch,
|
|
.get_port_link = ar8xxx_sw_get_port_link,
|
|
};
|
|
|
|
const struct ar8xxx_chip ar8327_chip = {
|
|
.caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
|
|
.config_at_probe = true,
|
|
.mii_lo_first = true,
|
|
|
|
.name = "Atheros AR8327",
|
|
.ports = AR8327_NUM_PORTS,
|
|
.vlans = AR8X16_MAX_VLANS,
|
|
.swops = &ar8327_sw_ops,
|
|
|
|
.reg_port_stats_start = 0x1000,
|
|
.reg_port_stats_length = 0x100,
|
|
|
|
.hw_init = ar8327_hw_init,
|
|
.cleanup = ar8327_cleanup,
|
|
.init_globals = ar8327_init_globals,
|
|
.init_port = ar8327_init_port,
|
|
.setup_port = ar8327_setup_port,
|
|
.read_port_status = ar8327_read_port_status,
|
|
.read_port_eee_status = ar8327_read_port_eee_status,
|
|
.atu_flush = ar8327_atu_flush,
|
|
.vtu_flush = ar8327_vtu_flush,
|
|
.vtu_load_vlan = ar8327_vtu_load_vlan,
|
|
.phy_fixup = ar8327_phy_fixup,
|
|
.set_mirror_regs = ar8327_set_mirror_regs,
|
|
.get_arl_entry = ar8327_get_arl_entry,
|
|
.sw_hw_apply = ar8327_sw_hw_apply,
|
|
|
|
.num_mibs = ARRAY_SIZE(ar8236_mibs),
|
|
.mib_decs = ar8236_mibs,
|
|
.mib_func = AR8327_REG_MIB_FUNC
|
|
};
|
|
|
|
const struct ar8xxx_chip ar8337_chip = {
|
|
.caps = AR8XXX_CAP_GIGE | AR8XXX_CAP_MIB_COUNTERS,
|
|
.config_at_probe = true,
|
|
.mii_lo_first = true,
|
|
|
|
.name = "Atheros AR8337",
|
|
.ports = AR8327_NUM_PORTS,
|
|
.vlans = AR8X16_MAX_VLANS,
|
|
.swops = &ar8327_sw_ops,
|
|
|
|
.reg_port_stats_start = 0x1000,
|
|
.reg_port_stats_length = 0x100,
|
|
|
|
.hw_init = ar8327_hw_init,
|
|
.cleanup = ar8327_cleanup,
|
|
.init_globals = ar8327_init_globals,
|
|
.init_port = ar8327_init_port,
|
|
.setup_port = ar8327_setup_port,
|
|
.read_port_status = ar8327_read_port_status,
|
|
.read_port_eee_status = ar8327_read_port_eee_status,
|
|
.atu_flush = ar8327_atu_flush,
|
|
.vtu_flush = ar8327_vtu_flush,
|
|
.vtu_load_vlan = ar8327_vtu_load_vlan,
|
|
.phy_fixup = ar8327_phy_fixup,
|
|
.set_mirror_regs = ar8327_set_mirror_regs,
|
|
.get_arl_entry = ar8327_get_arl_entry,
|
|
.sw_hw_apply = ar8327_sw_hw_apply,
|
|
|
|
.num_mibs = ARRAY_SIZE(ar8236_mibs),
|
|
.mib_decs = ar8236_mibs,
|
|
.mib_func = AR8327_REG_MIB_FUNC
|
|
};
|
|
|