ipq40xx: remove support for kernel 4.19

The target uses 5.4 as default kernel since 03/2020.

Kernel 4.19 support is not really maintained anymore, it does not
seem to be needed, and removing it will make upcoming driver
updates easier. Thus, remove it.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 384 deletions

diff --git a/target/linux/ipq40xx/files-5.4/drivers/net/ethernet/qualcomm/essedma/edma_ethtool.c b/target/linux/ipq40xx/files-5.4/drivers/net/ethernet/qualcomm/essedma/edma_ethtool.c
deleted file mode 100644
index 1270e20a90..0000000000
--- a/target/linux/ipq40xx/files-5.4/drivers/net/ethernet/qualcomm/essedma/edma_ethtool.c
+++ /dev/null
@@ -1,384 +0,0 @@
-/*
- * Copyright (c) 2015 - 2016, The Linux Foundation. All rights reserved.
- *
- * Permission to use, copy, modify, and/or distribute this software for
- * any purpose with or without fee is hereby granted, provided that the
- * above copyright notice and this permission notice appear in all copies.
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
- * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/ethtool.h>
-#include <linux/netdevice.h>
-#include <linux/string.h>
-#include "edma.h"
-
-struct edma_ethtool_stats {
-	uint8_t stat_string[ETH_GSTRING_LEN];
-	uint32_t stat_offset;
-};
-
-#define EDMA_STAT(m)    offsetof(struct edma_ethtool_statistics, m)
-#define DRVINFO_LEN	32
-
-/* Array of strings describing statistics
- */
-static const struct edma_ethtool_stats edma_gstrings_stats[] = {
-	{"tx_q0_pkt", EDMA_STAT(tx_q0_pkt)},
-	{"tx_q1_pkt", EDMA_STAT(tx_q1_pkt)},
-	{"tx_q2_pkt", EDMA_STAT(tx_q2_pkt)},
-	{"tx_q3_pkt", EDMA_STAT(tx_q3_pkt)},
-	{"tx_q4_pkt", EDMA_STAT(tx_q4_pkt)},
-	{"tx_q5_pkt", EDMA_STAT(tx_q5_pkt)},
-	{"tx_q6_pkt", EDMA_STAT(tx_q6_pkt)},
-	{"tx_q7_pkt", EDMA_STAT(tx_q7_pkt)},
-	{"tx_q8_pkt", EDMA_STAT(tx_q8_pkt)},
-	{"tx_q9_pkt", EDMA_STAT(tx_q9_pkt)},
-	{"tx_q10_pkt", EDMA_STAT(tx_q10_pkt)},
-	{"tx_q11_pkt", EDMA_STAT(tx_q11_pkt)},
-	{"tx_q12_pkt", EDMA_STAT(tx_q12_pkt)},
-	{"tx_q13_pkt", EDMA_STAT(tx_q13_pkt)},
-	{"tx_q14_pkt", EDMA_STAT(tx_q14_pkt)},
-	{"tx_q15_pkt", EDMA_STAT(tx_q15_pkt)},
-	{"tx_q0_byte", EDMA_STAT(tx_q0_byte)},
-	{"tx_q1_byte", EDMA_STAT(tx_q1_byte)},
-	{"tx_q2_byte", EDMA_STAT(tx_q2_byte)},
-	{"tx_q3_byte", EDMA_STAT(tx_q3_byte)},
-	{"tx_q4_byte", EDMA_STAT(tx_q4_byte)},
-	{"tx_q5_byte", EDMA_STAT(tx_q5_byte)},
-	{"tx_q6_byte", EDMA_STAT(tx_q6_byte)},
-	{"tx_q7_byte", EDMA_STAT(tx_q7_byte)},
-	{"tx_q8_byte", EDMA_STAT(tx_q8_byte)},
-	{"tx_q9_byte", EDMA_STAT(tx_q9_byte)},
-	{"tx_q10_byte", EDMA_STAT(tx_q10_byte)},
-	{"tx_q11_byte", EDMA_STAT(tx_q11_byte)},
-	{"tx_q12_byte", EDMA_STAT(tx_q12_byte)},
-	{"tx_q13_byte", EDMA_STAT(tx_q13_byte)},
-	{"tx_q14_byte", EDMA_STAT(tx_q14_byte)},
-	{"tx_q15_byte", EDMA_STAT(tx_q15_byte)},
-	{"rx_q0_pkt", EDMA_STAT(rx_q0_pkt)},
-	{"rx_q1_pkt", EDMA_STAT(rx_q1_pkt)},
-	{"rx_q2_pkt", EDMA_STAT(rx_q2_pkt)},
-	{"rx_q3_pkt", EDMA_STAT(rx_q3_pkt)},
-	{"rx_q4_pkt", EDMA_STAT(rx_q4_pkt)},
-	{"rx_q5_pkt", EDMA_STAT(rx_q5_pkt)},
-	{"rx_q6_pkt", EDMA_STAT(rx_q6_pkt)},
-	{"rx_q7_pkt", EDMA_STAT(rx_q7_pkt)},
-	{"rx_q0_byte", EDMA_STAT(rx_q0_byte)},
-	{"rx_q1_byte", EDMA_STAT(rx_q1_byte)},
-	{"rx_q2_byte", EDMA_STAT(rx_q2_byte)},
-	{"rx_q3_byte", EDMA_STAT(rx_q3_byte)},
-	{"rx_q4_byte", EDMA_STAT(rx_q4_byte)},
-	{"rx_q5_byte", EDMA_STAT(rx_q5_byte)},
-	{"rx_q6_byte", EDMA_STAT(rx_q6_byte)},
-	{"rx_q7_byte", EDMA_STAT(rx_q7_byte)},
-	{"tx_desc_error", EDMA_STAT(tx_desc_error)},
-	{"rx_alloc_fail_ctr", EDMA_STAT(rx_alloc_fail_ctr)},
-};
-
-#define EDMA_STATS_LEN ARRAY_SIZE(edma_gstrings_stats)
-
-/* edma_get_strset_count()
- *	Get strset count
- */
-static int edma_get_strset_count(struct net_device *netdev,
-				 int sset)
-{
-	switch (sset) {
-	case ETH_SS_STATS:
-		return EDMA_STATS_LEN;
-	default:
-		netdev_dbg(netdev, "%s: Invalid string set", __func__);
-		return -EOPNOTSUPP;
-	}
-}
-
-
-/* edma_get_strings()
- *	get stats string
- */
-static void edma_get_strings(struct net_device *netdev, uint32_t stringset,
-			     uint8_t *data)
-{
-	uint8_t *p = data;
-	uint32_t i;
-
-	switch (stringset) {
-	case ETH_SS_STATS:
-		for (i = 0; i < EDMA_STATS_LEN; i++) {
-			memcpy(p, edma_gstrings_stats[i].stat_string,
-				min((size_t)ETH_GSTRING_LEN,
-				    strlen(edma_gstrings_stats[i].stat_string)
-				    + 1));
-			p += ETH_GSTRING_LEN;
-		}
-		break;
-	}
-}
-
-/* edma_get_ethtool_stats()
- *	Get ethtool statistics
- */
-static void edma_get_ethtool_stats(struct net_device *netdev,
-				   struct ethtool_stats *stats, uint64_t *data)
-{
-	struct edma_adapter *adapter = netdev_priv(netdev);
-	struct edma_common_info *edma_cinfo = adapter->edma_cinfo;
-	int i;
-	uint8_t *p = NULL;
-
-	edma_read_append_stats(edma_cinfo);
-
-	for(i = 0; i < EDMA_STATS_LEN; i++) {
-		p = (uint8_t *)&(edma_cinfo->edma_ethstats) +
-			edma_gstrings_stats[i].stat_offset;
-		data[i] = *(uint32_t *)p;
-	}
-}
-
-/* edma_get_drvinfo()
- *	get edma driver info
- */
-static void edma_get_drvinfo(struct net_device *dev,
-			     struct ethtool_drvinfo *info)
-{
-	strlcpy(info->driver, "ess_edma", DRVINFO_LEN);
-	strlcpy(info->bus_info, "axi", ETHTOOL_BUSINFO_LEN);
-}
-
-/* edma_nway_reset()
- *	Reset the phy, if available.
- */
-static int edma_nway_reset(struct net_device *netdev)
-{
-	return -EINVAL;
-}
-
-/* edma_get_wol()
- *	get wake on lan info
- */
-static void edma_get_wol(struct net_device *netdev,
-			 struct ethtool_wolinfo *wol)
-{
-	wol->supported = 0;
-	wol->wolopts = 0;
-}
-
-/* edma_get_msglevel()
- *	get message level.
- */
-static uint32_t edma_get_msglevel(struct net_device *netdev)
-{
-	return 0;
-}
-
-/* edma_get_settings()
- *	Get edma settings
- */
-static int edma_get_settings(struct net_device *netdev,
-			     struct ethtool_link_ksettings *cmd)
-{
-	struct edma_adapter *adapter = netdev_priv(netdev);
-
-	if (adapter->poll_required) {
-		struct phy_device *phydev = NULL;
-		uint16_t phyreg;
-
-		if ((adapter->forced_speed != SPEED_UNKNOWN)
-			&& !(adapter->poll_required))
-			return -EPERM;
-
-		phydev = adapter->phydev;
-
-		linkmode_copy(cmd->link_modes.advertising, phydev->advertising);
-		linkmode_copy(cmd->link_modes.supported, phydev->supported);
-
-		cmd->base.autoneg = phydev->autoneg;
-
-		if (adapter->link_state == __EDMA_LINKDOWN) {
-			cmd->base.speed =  SPEED_UNKNOWN;
-			cmd->base.duplex = DUPLEX_UNKNOWN;
-		} else {
-			cmd->base.speed = phydev->speed;
-			cmd->base.duplex = phydev->duplex;
-		}
-
-		cmd->base.phy_address = adapter->phy_mdio_addr;
-
-		phyreg = (uint16_t)phy_read(adapter->phydev, MII_LPA);
-		if (phyreg & LPA_10HALF)
-			linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, 
-								cmd->link_modes.lp_advertising);
-
-		if (phyreg & LPA_10FULL)
-			linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, 
-								cmd->link_modes.lp_advertising);
-
-		if (phyreg & LPA_100HALF)
-			linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, 
-								cmd->link_modes.lp_advertising);
-
-		if (phyreg & LPA_100FULL)
-			linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, 
-								cmd->link_modes.lp_advertising);
-
-		phyreg = (uint16_t)phy_read(adapter->phydev, MII_STAT1000);
-		if (phyreg & LPA_1000HALF)
-			linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, 
-								cmd->link_modes.lp_advertising);
-
-		if (phyreg & LPA_1000FULL)
-			linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 
-								cmd->link_modes.lp_advertising);
-	} else {
-		/* If the speed/duplex for this GMAC is forced and we
-		 * are not polling for link state changes, return the
-		 * values as specified by platform. This will be true
-		 * for GMACs connected to switch, and interfaces that
-		 * do not use a PHY.
-		 */
-		if (!(adapter->poll_required)) {
-			if (adapter->forced_speed != SPEED_UNKNOWN) {
-				/* set speed and duplex */
-				cmd->base.speed = SPEED_1000;
-				cmd->base.duplex = DUPLEX_FULL;
-
-				/* Populate capabilities advertised by self */
-				linkmode_zero(cmd->link_modes.advertising);
-				cmd->base.autoneg = 0;
-				cmd->base.port = PORT_TP;
-				cmd->base.transceiver = XCVR_EXTERNAL;
-			} else {
-				/* non link polled and non
-				 * forced speed/duplex interface
-				 */
-				return -EIO;
-			}
-		}
-	}
-
-	return 0;
-}
-
-/* edma_set_settings()
- *	Set EDMA settings
- */
-static int edma_set_settings(struct net_device *netdev,
-			    const struct ethtool_link_ksettings *cmd)
-{
-	struct edma_adapter *adapter = netdev_priv(netdev);
-	struct phy_device *phydev = NULL;
-
-	if ((adapter->forced_speed != SPEED_UNKNOWN) &&
-	     !adapter->poll_required)
-		return -EPERM;
-
-	phydev = adapter->phydev;
-	linkmode_copy(phydev->advertising, cmd->link_modes.advertising);
-	linkmode_copy(phydev->supported, cmd->link_modes.supported);
-	phydev->autoneg = cmd->base.autoneg;
-	phydev->speed = cmd->base.speed;
-	phydev->duplex = cmd->base.duplex;
-
-	genphy_config_aneg(phydev);
-
-	return 0;
-}
-
-/* edma_get_coalesce
- *	get interrupt mitigation
- */
-static int edma_get_coalesce(struct net_device *netdev,
-			     struct ethtool_coalesce *ec)
-{
-	u32 reg_val;
-
-	edma_get_tx_rx_coalesce(&reg_val);
-
-	/* We read the Interrupt Moderation Timer(IMT) register value,
-	 * use lower 16 bit for rx and higher 16 bit for Tx. We do a
-	 * left shift by 1, because IMT resolution timer is 2usecs.
-	 * Hence the value given by the register is multiplied by 2 to
-	 * get the actual time in usecs.
-	 */
-	ec->tx_coalesce_usecs = (((reg_val >> 16) & 0xffff) << 1);
-	ec->rx_coalesce_usecs = ((reg_val & 0xffff) << 1);
-
-	return 0;
-}
-
-/* edma_set_coalesce
- *	set interrupt mitigation
- */
-static int edma_set_coalesce(struct net_device *netdev,
-			     struct ethtool_coalesce *ec)
-{
-	if (ec->tx_coalesce_usecs)
-		edma_change_tx_coalesce(ec->tx_coalesce_usecs);
-	if (ec->rx_coalesce_usecs)
-		edma_change_rx_coalesce(ec->rx_coalesce_usecs);
-
-	return 0;
-}
-
-/* edma_set_priv_flags()
- *	Set EDMA private flags
- */
-static int edma_set_priv_flags(struct net_device *netdev, u32 flags)
-{
-	return 0;
-}
-
-/* edma_get_priv_flags()
- *	get edma driver flags
- */
-static u32 edma_get_priv_flags(struct net_device *netdev)
-{
-	return 0;
-}
-
-/* edma_get_ringparam()
- *	get ring size
- */
-static void edma_get_ringparam(struct net_device *netdev,
-			       struct ethtool_ringparam *ring)
-{
-	struct edma_adapter *adapter = netdev_priv(netdev);
-	struct edma_common_info *edma_cinfo = adapter->edma_cinfo;
-
-	ring->tx_max_pending = edma_cinfo->tx_ring_count;
-	ring->rx_max_pending = edma_cinfo->rx_ring_count;
-}
-
-/* Ethtool operations
- */
-static const struct ethtool_ops edma_ethtool_ops = {
-	.get_drvinfo = &edma_get_drvinfo,
-	.get_link = &ethtool_op_get_link,
-	.get_msglevel = &edma_get_msglevel,
-	.nway_reset = &edma_nway_reset,
-	.get_wol = &edma_get_wol,
-	.get_link_ksettings = &edma_get_settings,
-	.set_link_ksettings = &edma_set_settings,
-	.get_strings = &edma_get_strings,
-	.get_sset_count = &edma_get_strset_count,
-	.get_ethtool_stats = &edma_get_ethtool_stats,
-	.get_coalesce = &edma_get_coalesce,
-	.set_coalesce = &edma_set_coalesce,
-	.get_priv_flags = edma_get_priv_flags,
-	.set_priv_flags = edma_set_priv_flags,
-	.get_ringparam = edma_get_ringparam,
-};
-
-/* edma_set_ethtool_ops
- *	Set ethtool operations
- */
-void edma_set_ethtool_ops(struct net_device *netdev)
-{
-	netdev->ethtool_ops = &edma_ethtool_ops;
-}